102
VHF FM REPEATER GENERAL ................................................................ 2 DISASSEMBLY FOR REPAIR ................................. 2 COMPONENTS DESCRIPTION .............................. 6 PARTS LIST ........................................................... 10 EXPLODED VIEW .................................................. 30 PACKING ............................................................... 34 SEMICONDUCTOR DATA .................................... 35 PC BOARD CONTROL UNIT (X53-4210-10) ...................... 36 RX UNIT (X55-308X-XX) ................................. 44 TX UNIT (X56-3140-10):K, K2, K3 ................... 48 TX UNIT (X56-3102-70):E ................................ 56 SCHEMATIC DIAGRAM ........................................ 64 SPECIFICATIONS .................................................. 81 TKR-740 © 2008-3 PRINTED IN JAPAN B51-8828-00 (S) 665 SERVICE MANUAL CONTENTS LED (B30-2197-05) PUSH KNOB (TEST) (K29-3002-14) MODULAR JACK (E58-0526-05) LED (B30-2198-05) LED (B30-0864-05) Panel (Front) (A62-0726-13) LED ASSY (LA301DB(N)) KNOB (VOL) (K29-4539-04) This service manual (B51-8828-00) applies to products with 909xxxxx(K, K2, K3), 804xxxxx(E), or subsequent serial numbers. Refer to the TKR-740(K, K2, K3) service manual (B51-8505-00) or TKR-740(E) service manual (B51-8642-00) for any information which has not been covered in this service manual. This product complies with the RoHS directive for the European market. This product uses Lead Free solder. SUPPLEMENT

VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

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Page 1: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

VHF FM REPEATER

GENERAL ................................................................ 2

DISASSEMBLY FOR REPAIR ................................. 2

COMPONENTS DESCRIPTION .............................. 6

PARTS LIST ........................................................... 10

EXPLODED VIEW.................................................. 30

PACKING ............................................................... 34

SEMICONDUCTOR DATA .................................... 35

PC BOARD

CONTROL UNIT (X53-4210-10) ...................... 36

RX UNIT (X55-308X-XX) ................................. 44

TX UNIT (X56-3140-10):K, K2, K3 ................... 48

TX UNIT (X56-3102-70):E ................................ 56

SCHEMATIC DIAGRAM........................................ 64

SPECIFICATIONS .................................................. 81

TKR-740© 2008-3 PRINTED IN JAPANB51-8828-00 (S) 665

SERVICE MANUAL

CONTENTS

LED(B30-2197-05)

PUSH KNOB (TEST)(K29-3002-14)

MODULAR JACK(E58-0526-05)

LED(B30-2198-05)

LED(B30-0864-05)

Panel (Front)(A62-0726-13)

LED ASSY(LA301DB(N))

KNOB (VOL)(K29-4539-04)

This service manual (B51-8828-00) applies to products with 909xxxxx(K, K2, K3), 804xxxxx(E), or subsequent serial numbers.Refer to the TKR-740(K, K2, K3) service manual (B51-8505-00) or TKR-740(E) service manual (B51-8642-00) for any informationwhich has not been covered in this service manual.

This product complies with the RoHS directive for the European market.

This product uses Lead Free solder.

SUPPLEMENT

Page 2: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

2

TKR-740

Document CopyrightsCopyright 2008 by Kenwood Corporation. All rights reserved.No part of this manual may be reproduced, translated,

distributed, or transmitted in any form or by any means, elec-tronic, mechanical, photocopying, recording, or otherwise,for any purpose without the prior written permission ofKenwood.

Title Parts number Remarks Destination Control unit RX unit TX unit

TKR-740 B51-8505-00 First edition K, K2, K3X53-3880-10 X55-3050-XX X56-3040-10J72-0668-11 J72-0666-01 J72-0669-01

TKR-740 B51-8642-00 First edition EX53-3882-71 X55-3050-11 X56-3072-70J72-0668-11 J72-0666-01 J72-0879-09

K, K2, K3X56-3140-10

TKR-740 B51-8828-00Supplement X53-4210-10 X55-308X-XX J79-0169-09

This service manualE

J79-0034-19 J79-0036-09 X56-3102-70J79-0037-09

Service Manual List

DisclaimerWhile every precaution has been taken in the preparation

of this manual, Kenwood assumes no responsibility forerrors or omissions. Neither is any liability assumed for dam-ages resulting from the use of the information containedherein. Kenwood reserves the right to make changes to anyproducts herein at any time for improvement purposes.

DISASSEMBLY FOR REPAIR

1. Precautions for replacing the Control unit

(D/4: PF key part)

When replacing an old Control unit (X53-388) (D/4) with anew Control unit (X53-421) (D/4), it is necessary to replacethe PF key filter from the old parts (B11-1223-04) to the newparts (B11-1846-04) at the same time.

In addition, add the rubber sheet (G11-4413-04) to theposition as shown in the figure.

PF key filter(B11-1846-04)

Rubber sheet(G11-4413-04)

Cushion(G13-1729-04)

New Control unit(X53-421) (D/4)

Fix the rubber sheet in the frame of the cushion.

GENERAL

Page 3: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

3

TKR-740DISASSEMBLY FOR REPAIR

2. Compatibility information for the Control unit, RX unit and TX unit

The change of the Control, RX, TX units number with the change of the PLL IC.

OLD Unit Number NEW Unit Number Remarks

Control unitX53-3880-10 X53-4210-10

Identification addition of the old and new PLL ICs.(J72-0668-XX) (J79-0034-XX)

X55-3050-XX X55-308X-XX

RX unit (Old PLL IC:SA7025) (New PLL IC:LMX2352TMX/NP) RX PLL circuit modification

(J72-0666-XX) (J79-0036-XX)

X56-3040-10 X56-3140-10

TX unit (Old PLL IC:SA7025) (New PLL IC:LMX2352TMX/NP) TX PLL circuit modification

(J72-0669-XX) (J79-0169-XX)

Firmware Check sum “26A4” or before Check sum “C77F” or later Version upgrade to distinguish old and new PLL ICs.

• K, K2, K3 types

OLD Unit Number NEW Unit Number Remarks

Control unitX53-3882-71 X53-4210-10

Identification addition of the old and new PLL ICs.(J72-0668-XX) (J79-0034-XX)

X55-3050-11 X55-3082-70

RX unit (Old PLL IC:SA7025) (New PLL IC:LMX2352TMX/NP) RX PLL circuit modification

(J72-0666-XX) (J79-0036-XX)

X56-3072-70 X56-3102-70

TX unit (Old PLL IC:SA7025) (New PLL IC:LMX2352TMX/NP) TX PLL circuit modification

(J72-0879-XX) (J79-0037-XX)

Firmware Check sum “26A4” or before Check sum “6784” or later Version upgrade to distinguish old and new PLL ICs.

• E type

With the PLL IC change (from SA7025 to LMX2352TMX/NP), the Control, RX, and TX unit numbers were changed asshown the table below.

The new Control unit, RX unit and TX unit have beenchanged from S/No. 909xxxxx~ (K,K2,K3 types), S/No.804xxxxx~ (E type).

The firmware modification has already been applied fromS/N. 907xxxxx~ (K,K2,K3 types) in advance, as there arecompatibility issues for both old and new units.

Page 4: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

4

TKR-740DISASSEMBLY FOR REPAIR

Compatibility informationThere are some important notices when you replace the

Control, RX and TX units.If you need to change either the RX or TX unit from TYPE

A to TYPE B.

Firmware and Control unit

Compatibility Chart “26A4” or earlier version “C77F” or later version

X53-3880-10 (Old) X53-4210-10 (New)

OLD: TYPE AAvailable NOT available

RX: X55-3050-XXCauses unlock condition *1

TX: X56-3040-10

NEW: TYPE BNOT available Available

RX: X55-308X-XXCauses unlock condition *2

RX/TX TX: X56-3140-10

unit Combination-1 *3

RX: X55-3050-XX (Old)

TX: X56-3140-10 (New) NOT available *3

Combination-2 *3 RX or TX unit will causes unlock condition

RX: X55-308X-XX (New)

TX: X56-3040-10 (Old)

• K, K2, K3 types

Firmware and Control unit

Compatibility Chart “26A4” or earlier version “6784” or later version

X53-3882-71 (Old) X53-4210-10 (New)

OLD: TYPE AAvailable NOT available

RX: X55-3050-11Causes unlock condition *1

TX: X56-3072-70

NEW: TYPE BNOT available Available

RX: X55-3082-70Causes unlock condition *2

RX/TX TX: X56-3102-70

unit Combination-1 *3

RX: X55-3050-11 (Old)

TX: X56-3102-70 (New) NOT available *3

Combination-2 *3 RX or TX unit will causes unlock condition

RX: X55-3082-70 (New)

TX: X56-3072-70 (Old)

• E type

Note :

*1. To enable use of TYPE A combination, circuit modifications are required. Please refer to “NEW CONTROL unit (X53-4210-10)circuit modification to use old RX and TX unit” described on page 5.

*2. To enable use of TYPE B combination, a Firmware update and circuit modifications are required. Please refer to “OLDCONTROL unit (X53-388X-XX) circuit modification to use new RX and TX unit” described on page 5.

*3. Combination of old and new RX and TX units is not available. As a result, the old and new Control unit is not available.

1. Another RX or TX unit also needs to be replaced withTYPE B. *3

2. “C77F” or later (K,K2,K3 types), “6784” or later (Etype) firmware versions must be applied to that radio.

Page 5: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

5

TKR-740DISASSEMBLY FOR REPAIR

NEW CONTROL unit (X53-4210-10) circuit

modification to use old RX and TX unitR757 is added to the NEW CONTROL unit to be identified

by the CPU as the NEW RX and TX unit combination. Insteadof this, R201 is empty from production. The land pattern ofR201 is for OLD RX and TX unit combination.

The steps below are required to use this NEW CONTROLunit with a repeater having the old RX and TX unitcombination.

1. Remove R757 (RK73GB2A473J).2. Place the chip jumper RK73GB2A473J (removed in

step 1) on the R201 land pattern.

Old Control unit(X53-388X-XX) (A/4)Component side

New Control unit(X53-4210-10) (A/4)Component side

C207 +

R757

R194 R196

R197

R199

R200

R202R203

1100

R22

8R

230

R23

2

R24

3R

247

R24

8L1

1

R19

5

R201

100

1

R19

5

R196R197

R199R200

R201

R202 R203

R22

8R

230

R23

2

R24

3L1

1

C207R

247

R194

R201 GNDPattern cut

Add Jumper wire

OLD CONTROL unit (X53-388X-XX) circuit

modification to use new RX and TX unitThe OLD CONTROL unit can be used for the NEW RX

and TX unit if the OLD CONTROL unit is modified asinstructed below when the system recovery is requiredurgently. However it is required the pattern cut. Kenwoodrecommends using a NEW CONTROL unit.

1. Cut the GND pattern for R201.2. Add a Jumper wire between R201 and C207.3. Rewrite the Firmware (K, K2, K3 types: “C77F” or later

version, E type: “6784” or later version).

Page 6: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

6

TKR-740

Ref. No. Part Name Description

A1 DBM DOUBLE BALANCED MIXER

IC2 IC AVR

IC3 IC SHIFT REGISTER

IC4 IC AVR

IC5 IC DC AMP

IC6 IC MULTIPLEXER

IC7,8 IC FM IF IC

IC9 IC D/A CONVERTER

IC10 IC EEPROM

IC11,12 IC AF AMP

IC13 IC AVR

IC14 IC DC AMP

IC15 IC AF AMP

IC16 IC AVR

IC17 IC RF AMP

IC18 IC ANALOG SWITCH

IC19 IC INVERTER

IC20 IC DDS

IC21 IC ANALOG SWITCH

IC301 IC PLL

IC302 IC UNLOCK DETECTOR

Q1,3,5 TRANSISTOR RF LOCAL AMP

Q6 TRANSISTOR BUFFER AMP

Q7 TRANSISTOR AVR

Q8,9 FET VCO OSC

Q10,12,13 TRANSISTOR DC SWITCH

Ref. No. Part Name Description

IC1 IC MULTIPLEXER

IC3~6 IC AVR

IC7 IC FLASH ROM

IC10 IC VOLTAGE DETECTOR

IC12,13 IC AF AMP

IC14 IC MULTIPLEXER

IC15,16 IC BUS BUFFER

IC17,18 IC CPU

IC22,23 IC AF AMP

IC24 IC COUNTER

IC25 IC INVERTER

IC27 IC CODEC

IC29 IC MULTIPLEXER

IC30 IC DSP

IC31,32 IC AF AMP

IC33 IC D/A CONVERTER

IC34 IC AF AMP

IC35 IC MULTIPLEXER

IC36 IC AF AMP

IC37 IC MULTIPLEXER

IC38 IC NAND GATE

IC39 IC SHIFT REGISTER

IC40 IC AF AMP

IC42 IC RS232C TRANSCEIVER

IC45 IC AF POWER AMP

IC46~49 IC OR GATE

IC700~703 IC SHIFT REGISTER

IC704~706 IC AVR

Q1,5 FET BEAT SHIFT

Q2,8~10 TRANSISTOR INVERTER

Q11 TRANSISTOR AF MUTE

Q12 TRANSISTOR RSSI MUTE

Q13~16 TRANSISTOR DC SWITCH

Q700,701 TRANSISTOR LEVEL CONTROLLER

Q706~710 TRANSISTOR DC SWITCH

D1,3~22

D24~28DIODE SURGE PROTECTOR

D30~32

D34~39

CONTROL UNIT (X53-4210-10)

RX UNIT (X55-308X-XX)

COMPONENTS DESCRIPTION

Ref. No. Part Name Description

D700,701 LED ASSY 7 SEGMENT

D702 LED REFERENCE

D703 LED POWER

D704 LED TX

D705 LED BUSY

D706 DIODE SURGE PROTECTOR

D707 DIODE AF DETECT

D708 VARISTOR SURGE PROTECTOR

D709 DIODE AF DETECTOR

D710 VARISTOR CURRENT PROTECTOR

D711, 712 DIODE SURGE PROTECTOR

Page 7: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

7

TKR-740

Ref. No. Part Name Description

Q14 TRANSISTOR BUFFER AMP

Q16 TRANSISTOR DC SWITCH

Q17 TRANSISTOR RIPPLE FILTER

Q18~20 TRANSISTOR DC SWITCH

Q22 TRANSISTOR DC SWITCH

Q24,25 TRANSISTOR IF AMP

Q26 TRANSISTOR ACTIVE FILTER

Q28 TRANSISTOR SQ AMP

Q29 TRANSISTOR SQ SWITCH

Q30 FET DC SWITCH

Q31,32 TRANSISTOR IF AMP

Q33 TRANSISTOR REF AMP

Q34,35 FET SQ SWITCH

Q36~38 TRANSISTOR SQ SWITCH

Q39 TRANSISTOR BUFFER AMP

D2~4,6 VARICAP FREQ. CONTROL

D9 LED INDICATOR

D10 DIODE RF SW

D11 DIODE SQ SW

D12 DIODE UNLOCK SWITCH

TX UNIT (X56-3140-10):K, K2, K3 types

Ref. No. Part Name Description

IC1,2 IC AVR

IC3 IC D/A CONVERTER

IC4 IC SHIFT REGISTER

IC100 IC AVR

IC102 IC ACTIVE FILTER

IC103 IC AVR

IC105 IC AF AMP

IC106 IC EEPROM

IC107 IC AF AMP

IC108 IC AVR

IC109 IC BUFFER AMP

IC110 IC AVR

IC200 IC AND GATE

IC202 IC DDS

IC203 IC DC AMP

IC204 IC COMPARATOR

IC205 IC AVR

Ref. No. Part Name Description

IC206 IC INVERTER

IC302 IC DC AMP

IC303 IC DC AMP/COMPARATOR

IC304 IC ANALOG SWITCH

IC305 IC UNLOCK DETECTOR

IC501 IC MAIN PLL

IC502 IC SUB PLL

IC601 IC POWER MODULE

Q1,2 FET VCO OSC

Q3,4 TRANSISTOR DC SWITCH

Q5 FET DC SWITCH

Q6 TRANSISTOR BUFFER AMP

Q7 TRANSISTOR RIPPLE FILTER

Q8 TRANSISTOR DC SWITCH

Q9 TRANSISTOR RF AMP

Q11,12 TRANSISTOR DC SWITCH

Q13 TRANSISTOR RF AMP

Q14 FET RF AMP

Q15 FET BUFFER AMP

Q17,18 FET DC SWITCH

Q21 TRANSISTOR DC SWITCH

Q102 TRANSISTOR BUFFER AMP

Q106 TRANSISTOR DOUBLER

Q107~109 TRANSISTOR RF AMP

Q110 TRANSISTOR DC SWITCH

Q112,113 FET DC SWITCH

Q114 TRANSISTOR DC SWITCH

Q115 TRANSISTOR RF AMP

Q201 TRANSISTOR VCO OSC

Q202 TRANSISTOR BUFFER AMP

Q203 FET DC SWITCH

Q205 TRANSISTOR RF AMP

Q206 FET DC SWITCH

Q207 TRANSISTOR INVERTER

Q208 FET DC SWITCH

Q240 TRANSISTOR BUFFER AMP

Q241 TRANSISTOR RF AMP

Q242 TRANSISTOR BUFFER AMP

Q301 TRANSISTOR DC AMP

Q302,304 TRANSISTOR DC SWITCH

COMPONENTS DESCRIPTION

Page 8: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

8

TKR-740

TX UNIT (X56-3102-70):E type

Ref. No. Part Name Description

IC1,2 IC AVR

IC3 IC D/A CONVERTER

IC4 IC SHIFT REGISTER

IC100 IC AVR

IC102 IC ACTIVE FILTER

IC103 IC AVR

IC105 IC AF AMP

IC106 IC EEPROM

IC107 IC AF AMP

IC108 IC AVR

IC109 IC BUFFER AMP

IC110 IC AVR

IC200 IC AND GATE

IC202 IC DDS

IC203 IC DC AMP

IC204 IC COMPARATOR

IC205 IC AVR

IC206 IC INVERTER

IC301 IC SUB PLL

IC302 IC COMPARATOR

IC303 IC DC AMP

IC304 IC MAIN PLL

IC305 IC UNLOCK DETECTOR

IC601 IC POWER MODULE

Q1,2 FET VCO OSC

Q3,4 TRANSISTOR DC SWITCH

Q5 FET DC SWITCH

Q6 TRANSISTOR BUFFER AMP

Q7 TRANSISTOR RIPPLE FILTER

Q8 TRANSISTOR DC SWITCH

Q9 TRANSISTOR RF AMP

Q11,12 TRANSISTOR DC SWITCH

Q13 TRANSISTOR RF AMP

Q14 FET RF AMP

Q15 FET BUFFER AMP

Q17,18 FET DC SWITCH

Q21 TRANSISTOR DC SWITCH

Q102 TRANSISTOR BUFFER AMP

Q106 TRANSISTOR DOUBLER

COMPONENTS DESCRIPTION

Ref. No. Part Name Description

Q305 TRANSISTOR DC SWITCH

Q306 TRANSISTOR DC AMP

Q307 TRANSISTOR DIFFERENTIAL AMP

Q308 TRANSISTOR DC SWITCH

Q309 TRANSISTOR DC AMP

Q310 TRANSISTOR DIFFERENTIAL AMP

Q312,313 TRANSISTOR DC SWITCH

D1-4 VARICAP FREQ. CONTROL

D5,6 VARICAP MODULATION

D7 DIODE RF SWITCH

D11,12 DIODE CURRENT STEERING

D50,51 LED LOCK INDICATOR

D52 LED TX INDICATOR

D101,103 DIODE RF SWITCH

D201,202 VARICAP FREQ. CONTROL

D203 VARICAP MODULATION

D204 DIODE CURRENT STEERING

D205 DIODE RF DETECTOR

D206 VARISTOR CURRENT PROTECTOR

D303 SURGE ABSORBER SURGE PROTECTOR

D304 DIODE CURRENT STEERING

D305 DIODE REVERSE VOLTAGE PROTECTOR

D306~308 DIODE RF DETECTOR

D310 VARISTOR CURRENT PROTECTOR

D312 ZENER DIODE VOLTAGE REFERENCE

D317,318 DIODE CURRENT STEERING

D500 VARISTOR CURRENT PROTECTOR

D503 DIODE UNLOCK SWITCH

Page 9: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

9

TKR-740COMPONENTS DESCRIPTION

Ref. No. Part Name Description

Q107~109 TRANSISTOR RF AMP

Q110 TRANSISTOR DC SWITCH

Q112,113 FET DC SWITCH

Q114 TRANSISTOR DC SWITCH

Q115 TRANSISTOR RF AMP

Q201 TRANSISTOR VCO OSC

Q202 TRANSISTOR BUFFER AMP

Q203 FET DC SWITCH

Q205 TRANSISTOR RF AMP

Q206 FET DC SWITCH

Q207 TRANSISTOR INVERTER

Q208 FET DC SWITCH

Q240 TRANSISTOR BUFFER AMP

Q241 TRANSISTOR RF AMP

Q242 TRANSISTOR BUFFER AMP

Q301 TRANSISTOR DC AMP

Q302,304 TRANSISTOR DC SWITCH

Q308,309 TRANSISTOR DC SWITCH

D1-4 VARICAP FREQ. CONTROL

D5,6 VARICAP MODULATION

D7 DIODE RF SWITCH

D11,12 DIODE CURRENT STEERING

D50,51 LED LOCK INDICATOR

D52 LED TX INDICATOR

D101,103 DIODE RF SWITCH

D201,202 VARICAP FREQ. CONTROL

D203 VARICAP MODULATION

D204 DIODE CURRENT STEERING

D205 DIODE RF DETECTOR

D206 VARISTOR CURRENT PROTECTOR

D303 SURGE ABSORBER SURGE PROTECTOR

D304 DIODE CURRENT STEERING

D305 DIODE REVERSE VOLTAGE PROTECTOR

D306,308 DIODE RF DETECTOR

D310 VARISTOR CURRENT PROTECTOR

D318 DIODE CURRENT STEERING

D320 ZENER DIODE HIGH LOVTAGE PROTECTOR

D500 VARISTOR CURRENT PROTECTOR

D503 DIODE UNLOCK SWITCH

Page 10: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

∗ New Parts. indicates safety critical components.Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.

L: Scandinavia K: USA P: CanadaY: PX (Far East, Hawaii) T: England E: EuropeY: AAFES (Europe) X: Australia M: Other Areas

Parts No. DescriptionAddressNewpartsDestination Destination

TKR-740 (K,K2,K3)

Ref. No. Parts No. DescriptionAddressNewparts Ref. No.

10

TKR-740 (Y54-314X-XX)

TKR-740

J 1A,3B, N87-2606-48 BRAZIER HEAD TAPTITE SCREW2C,2D

K 2D N87-2608-48 BRAZIER HEAD TAPTITE SCREW

N 1B,2C N87-2616-48 BRAZIER HEAD TAPTITE SCREW

51 3B T07-0347-15 SPEAKER

1 3E ∗ A62-0726-13 PANEL(FRONT)2 3E,1I B10-2590-04 FRONT GLASS ACCESSORY3 3E B11-1225-04 FILTER(LED)4 3F B11-1231-04 FILTER(7SEG)5 3F ∗ B11-1846-04 FILTER(PF)

6 1J ∗ B62-1700-00 INSTRUCTION MANUAL7 2G E30-3343-15 DC CORD8 1I ∗ E30-3344-25 DC CORD ACCESSORY9 2F E37-0712-05 FLAT CABLE(CONT-TX,RX)10 1F E37-0713-05 FLAT CABLE(TX-FINAL)

11 2H ∗ E37-0715-15 LEAD WIRE WITH CONNECTOR(D-SUB)12 3F ∗ E37-0717-15 LEAD WIRE WITH CONNECTOR(SP)13 2G,2H ∗ E37-0718-15 LEAD WIRE WITH CONNECTOR(BNC)14 1F ∗ E37-0719-15 LEAD WIRE WITH CONNECTOR(TX-RX)15 1F ∗ E37-0720-15 LEAD WIRE WITH CONNECTOR(TX-FINAL)

16 2H E37-0721-15 LEAD WIRE WITH CONNECTOR(15P)17 1F E37-0791-15 LEAD WIRE WITH TERMINAL(DC+)18 3F ∗ E37-1353-05 LEAD WIRE WITH CONNECTOR(7SEG)19 2H ∗ E37-1354-05 LEAD WIRE WITH CONNECTOR(12P)20 1I ∗ E37-1381-05 LEAD WIRE WITH CONNECTOR(15P) ACC

21 1I E59-0404-05 RECTANGULAR PLUG(12P) ACCESSORY22 2H,1I F06-1032-05 FUSE(BLADE TYPE)(10A) ACCESSORY23 2E F07-1429-03 COVER(FAN-FRONT)24 2E,2F ∗ F09-0477-15 FANMOTOR(FRONT,REAR)25 2E F10-2200-04 SHIELDING PLATE(POWER MODULE)

26 2H F10-2297-04 SHIELDING PLATE(RX)27 2G F10-2312-04 SHIELDING PLATE(RX LOWER)28 1E F10-2355-04 SHIELDING COVER(POWER MODULE)29 2F,2G G02-0576-14 FLAT SPRING(RX:IC4,TX:IC1)30 2G G02-0839-04 FLAT SPRING(RX:L16)

31 3E G10-1343-04 FIBROUS SHEET32 3F G11-4413-04 RUBBER SHEET33 3F G13-1653-14 CUSHION(SP)34 3F G13-1669-04 CUSHION(MIC)35 3F G13-1703-14 CUSHION(FRONT PANEL)

36 3F G13-1728-04 CUSHION(LED)37 3F G13-1729-04 CUSHION(PF-PCB)38 3F G13-1730-04 CUSHION(PF-PANEL)39 3F G13-1754-04 CUSHION(VOL,TEST)40 3E G13-1861-04 CUSHION(FRONT PANEL-SP)

41 2I,2J H10-6612-02 POLYSTYRENE FOAMED FIXTURE42 2J H20-1437-03 PROTECTION COVER43 1I H25-0029-04 PROTECTION BAG (60/110/0.07)44 1I H25-0720-04 PROTECTION BAG (200X350)45 3J H52-1966-02 ITEM CARTON CASE

46 2F ∗ J11-0671-05 CLAMPER(TX-FAN CABLE)

1 3A ∗ A62-0726-13 PANEL(FRONT)2 3A,1I B10-2590-04 FRONT GLASS ACCESSORY3 3A B11-1225-04 FILTER(LED)4 3B B11-1231-04 FILTER(7SEG)5 3B ∗ B11-1846-04 FILTER(PF)

6 1J B62-1136-00 INSTRUCTION MANUAL7 2C E30-3343-15 DC CORD8 1I E30-3344-25 DC CORD ACCESSORY9 2B E37-0712-05 FLAT CABLE(CONT-TX,RX)10 1B E37-0713-05 FLAT CABLE(TX-FINAL)

11 2D ∗ E37-0715-15 LEAD WIRE WITH CONNECTOR(D-SUB)12 3B ∗ E37-0717-15 LEAD WIRE WITH CONNECTOR(SP)13 2C,2D ∗ E37-0718-15 LEAD WIRE WITH CONNECTOR(BNC)14 1B ∗ E37-0719-15 LEAD WIRE WITH CONNECTOR(TX-RX)15 1B ∗ E37-0720-15 LEAD WIRE WITH CONNECTOR(TX-FINAL)

16 2D E37-0721-15 LEAD WIRE WITH CONNECTOR(15P)17 1B E37-0791-15 LEAD WIRE WITH TERMINAL(DC+)18 3B ∗ E37-1353-05 LEAD WIRE WITH CONNECTOR(7SEG)19 2D ∗ E37-1354-05 LEAD WIRE WITH CONNECTOR(12P)20 1I E37-1381-05 LEAD WIRE WITH CONNECTOR(15P) ACC

21 1I E59-0404-05 RECTANGULAR PLUG(12P) ACCESSORY22 2D,1I F06-4027-05 FUSE(BLADE TYPE)(4A) ACCESSORY26 2D F10-2297-04 SHIELDING PLATE(RX)27 2C F10-2312-04 SHIELDING PLATE(RX LOWER)29 2B,2C G02-0576-14 FLAT SPRING(RX:IC4,TX:IC1)

30 2C G02-0839-04 FLAT SPRING(RX:L16)31 3A G10-1343-04 FIBROUS SHEET32 3B G11-4413-04 RUBBER SHEET33 3B G13-1653-14 CUSHION(SP)34 3B G13-1669-04 CUSHION(MIC)

35 3B G13-1703-14 CUSHION(FRONT PANEL)36 3B G13-1728-04 CUSHION(LED)37 3B G13-1729-04 CUSHION(PF-PCB)38 3B G13-1730-04 CUSHION(PF-PANEL)39 3B G13-1754-04 CUSHION(VOL,TEST)

40 3A G13-1861-04 CUSHION(FRONT PANEL-SP)41 2I,2J H10-6612-02 POLYSTYRENE FOAMED FIXTURE42 2J H20-1437-03 PROTECTION COVER43 1I H25-0029-04 PROTECTION BAG (60/110/0.07)44 1I H25-0720-04 PROTECTION BAG (200X350)

45 3J H52-1966-02 ITEM CARTON CASE47 1A J21-8375-04 MOUNTING HARDWARE(FINAL:TS301)48 1I K01-0421-05 HANDLE ACCESSORY49 3A K29-3002-14 PUSH KNOB(TEST)50 3A K29-4539-04 KNOB(VOL)

A 3A,1I ∗ N08-0560-04 DRESSED SCREW(FRONT GLASS)B 1D N09-2292-05 HEXAGON HEAD SCREW(D-SUB)C 1C,1D,2D N32-3005-43 FLAT HEAD MACHINE SCREWD 3A,3B N32-4008-43 FLAT HEAD MACHINE SCREWE 1B N35-3006-48 BINDING HEAD MACHINE SCREW

F 1A N67-2606-48 PAN HEAD SEMS SCREWG 2B N67-3006-48 PAN HEAD SEMS SCREWH 1A,2B N67-3008-43 PAN HEAD SEMS SCREW

TKR-740 (E)

Page 11: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

CONTROL UNIT (X53-4210-10)

11

TKR-740

47 1E J21-8375-04 MOUNTING HARDWARE(FINAL:TS301)48 1I K01-0421-05 HANDLE ACCESSORY49 3E K29-3002-14 PUSH KNOB(TEST)50 3E K29-4539-04 KNOB(VOL)

A 3E,1I ∗ N08-0560-04 DRESSED SCREW(FRONT GLASS)B 1H N09-2292-05 HEXAGON HEAD SCREW(D-SUB)C 1G,1H,2H N32-3005-43 FLAT HEAD MACHINE SCREWD 3E,3F N32-4008-43 FLAT HEAD MACHINE SCREWE 1F N35-3006-48 BINDING HEAD MACHINE SCREW

G 2F N67-3006-48 PAN HEAD SEMS SCREWI 1E N67-3008-48 PAN HEAD SEMS SCREWJ 1E,3F, N87-2606-48 BRAZIER HEAD TAPTITE SCREW

2G,2HK 2H N87-2608-48 BRAZIER HEAD TAPTITE SCREWL 2E ∗ N87-2610-48 BRAZIER HEAD TAPTITE SCREW

M 2F ∗ N87-2612-48 BRAZIER HEAD TAPTITE SCREWN 1F,2G N87-2616-48 BRAZIER HEAD TAPTITE SCREW

51 3F T07-0347-15 SPEAKER

D702 B30-0864-05 LED(RE/GR)D703 B30-2198-05 LED(GR)D704 B30-2197-05 LED(RE)D705 B30-2198-05 LED(GR)

C1 CK73GB1E103K CHIP C 0.010UF KC2 ,3 CK73EB1C105K CHIP C 1.0UF KC4 CK73GB1H102K CHIP C 1000PF KC5 ∗ C92-0899-05 ELECTRO 330UF 25WVC6 CK73GB1H102K CHIP C 1000PF K

C7 ∗ C92-0898-05 ELECTRO 47UF 25WVC8 CK73GB1H102K CHIP C 1000PF KC9 ,10 ∗ C92-0898-05 ELECTRO 47UF 25WVC11 ,12 ∗ C92-0897-05 ELECTRO 470UF 16WVC13 CK73FB1E104K CHIP C 0.10UF K

C14 CS77AA1E010M CHIP TNTL 1.0UF 25WVC15 CC73GCH1H101J CHIP C 100PF JC18 CK73FB1E104K CHIP C 0.10UF KC19 ,20 CK73EB1C105K CHIP C 1.0UF KC21 -23 CK73GB1E103K CHIP C 0.010UF K

C24 -26 CS77AA1A100M CHIP TNTL 10UF 10WVC27 CK73GB1H102K CHIP C 1000PF KC28 CK73FB1E104K CHIP C 0.10UF KC29 CK73GB1E103K CHIP C 0.010UF KC30 CS77AA1C100M CHIP TNTL 10UF 16WV

C31 CK73GB1H102K CHIP C 1000PF KC32 -46 CC73GCH1H101J CHIP C 100PF JC49 -53 CC73GCH1H101J CHIP C 100PF JC54 CK73GB1E103K CHIP C 0.010UF KC55 CC73GCH1H101J CHIP C 100PF J

C56 CK73EB1C105K CHIP C 1.0UF KC57 ,58 CC73GCH1H101J CHIP C 100PF JC59 CK73GB1H562J CHIP C 5600PF JC60 CC73GCH1H101J CHIP C 100PF JC61 CK73FB1E223K CHIP C 0.022UF K

C66 CK73GB1E103K CHIP C 0.010UF KC68 CS77AA1E010M CHIP TNTL 1.0UF 25WVC76 CK73EB1C105K CHIP C 1.0UF KC77 CC73GCH1H101J CHIP C 100PF JC78 -80 CS77AA1A100M CHIP TNTL 10UF 10WV

C83 CK73GB1E103K CHIP C 0.010UF KC84 CK73GB1H472K CHIP C 4700PF KC86 CK73GB1H472K CHIP C 4700PF KC87 CK73GB1H152K CHIP C 1500PF KC88 CK73EB1C105K CHIP C 1.0UF K

C89 CC73FCH1H751J CHIP C 750PF JC90 CK73GB1E103K CHIP C 0.010UF KC91 CK73EB1C105K CHIP C 1.0UF KC96 CK73GB1E103K CHIP C 0.010UF KC100,101 CS77AA1A100M CHIP TNTL 10UF 10WV

C102 CC73GCH1H101J CHIP C 100PF JC105-107 CS77AA1A100M CHIP TNTL 10UF 10WVC108 CK73GB1E103K CHIP C 0.010UF KC123 CC73GCH1H101J CHIP C 100PF JC125 CK73EB1C105K CHIP C 1.0UF K

C126 CK73FB1E103K CHIP C 0.010UF KC127 CS77AA1A100M CHIP TNTL 10UF 10WVC128-131 CS77AA1E010M CHIP TNTL 1.0UF 25WVC132 CC73GCH1H101J CHIP C 100PF JC133 CK73GB1E103K CHIP C 0.010UF K

C134,135 CC73GCH1H101J CHIP C 100PF JC136 C92-0858-05 CHIP TNTL 68UF 6.3WVC137 CS77BA0J470M CHIP TNTL 47UF 6.3WVC138 CS77AA1A100M CHIP TNTL 10UF 10WVC139 CC73GCH1H330J CHIP C 33PF J

C140-142 CK73GB1H102K CHIP C 1000PF KC143,144 CK73EB1C105K CHIP C 1.0UF KC145 CK73GB1E103K CHIP C 0.010UF KC146-148 CS77AA1E010M CHIP TNTL 1.0UF 25WVC149 CS77AB20J101M CHIP TNTL 100UF 6.3WV

C150 CS77AA1E010M CHIP TNTL 1.0UF 25WVC151 CK73GB1E103K CHIP C 0.010UF KC152 CK73GB1H471K CHIP C 470PF KC153 CK73EB1C105K CHIP C 1.0UF KC154 CS77AA1A100M CHIP TNTL 10UF 10WV

C155 CK73EB1C105K CHIP C 1.0UF KC156,157 CK73GB1E103K CHIP C 0.010UF KC158 CK73GB1H102K CHIP C 1000PF KC159 CS77AA1A100M CHIP TNTL 10UF 10WVC160 CK73EB1C105K CHIP C 1.0UF K

C161,162 CS77AA1A4R7M CHIP TNTL 4.7UF 10WVC163 CS77AB20J101M CHIP TNTL 100UF 6.3WVC164,165 CK73GB1H102K CHIP C 1000PF KC166 CS77AA1A4R7M CHIP TNTL 4.7UF 10WVC167 CS77AA1A100M CHIP TNTL 10UF 10WV

C168 CK73FB1E104K CHIP C 0.10UF KC169,170 CS77AA1A100M CHIP TNTL 10UF 10WVC171 CK73GB1E103K CHIP C 0.010UF KC172 CS77AA1A100M CHIP TNTL 10UF 10WVC173 CC73GCH1H181J CHIP C 180PF J

C174 CK73GB1H182K CHIP C 1800PF KC175 CK73GB1E103K CHIP C 0.010UF KC176 CS77AA1A100M CHIP TNTL 10UF 10WVC177 CK73EB1C105K CHIP C 1.0UF KC178 CC73GCH1H271J CHIP C 270PF J

C179 CK73GB1H272K CHIP C 2700PF KC180,181 CS77AA1A100M CHIP TNTL 10UF 10WVC182 CK73EB1C105K CHIP C 1.0UF KC183 CK73GB1E103K CHIP C 0.010UF KC184 CC73GCH1H101J CHIP C 100PF J

CONTROL UNIT (X53-4210-10)

TKR-740 (Y54-314X-XX)

Page 12: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

12

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

CONTROL UNIT (X53-4210-10)

TKR-740

C185-187 CK73GB1E103K CHIP C 0.010UF KC188 CC73GCH1H030C CHIP C 3.0PF CC189,190 CC73GCH1H120J CHIP C 12PF JC191 CK73FB1C105K CHIP C 1.0UF KC192 CK73GB1E103K CHIP C 0.010UF K

C193 CK73FB1E104K CHIP C 0.10UF KC194 CS77AA1A100M CHIP TNTL 10UF 10WVC200-202 CK73GB1H471K CHIP C 470PF KC203 CK73GB1E103K CHIP C 0.010UF KC204 CK73GB1H471K CHIP C 470PF K

C205 CK73GB1E103K CHIP C 0.010UF KC206 CS77AA1A100M CHIP TNTL 10UF 10WVC207 C92-0771-05 CHIP-ELE 220UF 6.3WVC208,209 CK73GB1E103K CHIP C 0.010UF KC210,211 C92-0771-05 CHIP-ELE 220UF 6.3WV

C212-214 CK73EB1C105K CHIP C 1.0UF KC221,222 CK73GB1E103K CHIP C 0.010UF KC223,224 CC73GCH1H270J CHIP C 27PF JC225 CC73GCH1H150J CHIP C 15PF JC226,227 CK73GB1E103K CHIP C 0.010UF K

C228 CK73GB1H471K CHIP C 470PF KC229 CK73GB1E103K CHIP C 0.010UF KC231,232 CK73GB1E103K CHIP C 0.010UF KC256 CK73FB1E103K CHIP C 0.010UF KC300-303 CC73GCH1H101J CHIP C 100PF J

C304-312 CK73GB1H102K CHIP C 1000PF KC313 CC73GCH1H101J CHIP C 100PF JC315,316 CK73FB1E103K CHIP C 0.010UF KC317,318 CC73GCH1H101J CHIP C 100PF JC319-322 CS77AA1E010M CHIP TNTL 1.0UF 25WV

C323 CK73GB1H102K CHIP C 1000PF KC324 CK73FB1E104K CHIP C 0.10UF KC325-327 CK73GB1H102K CHIP C 1000PF KC328-330 CC73GCH1H101J CHIP C 100PF JC331-337 CK73GB1H102K CHIP C 1000PF K

C700-705 CC73GCH1H101J CHIP C 100PF JC706,707 CK73GB1E103K CHIP C 0.010UF KC708-710 CK73FB1E104K CHIP C 0.10UF KC711-713 CK73FF1E334Z CHIP C 0.33UF ZC714,715 CK73GB1H102K CHIP C 1000PF K

C716 CS77AA1A100M CHIP TNTL 10UF 10WVC717,718 CC73GCH1H101J CHIP C 100PF JC719 CK73GB1H471K CHIP C 470PF KC720-722 CC73GCH1H101J CHIP C 100PF JC723 CK73GB1H471K CHIP C 470PF K

C724 CC73GCH1H101J CHIP C 100PF JC725 CK73FB1E104K CHIP C 0.10UF KC727,728 CS77AA1A1R5M CHIP TNTL 1.5UF 10WVC729,730 CK73FB1E104K CHIP C 0.10UF KC731 CC73GCH1H470J CHIP C 47PF J

C732,733 CK73FB1E104K CHIP C 0.10UF KC734 CK73FB1E103K CHIP C 0.010UF KC735 CS77AA1A100M CHIP TNTL 10UF 10WVC736,737 CC73GCH1H101J CHIP C 100PF JC738,739 CK73GB1H102K CHIP C 1000PF K

C740-742 CS77AA1A100M CHIP TNTL 10UF 10WVC750 CK73GB1C104K CHIP C 0.10UF K

CN1 -3 ∗ E40-6724-05 FLAT CABLE CONNECTORCN4 E40-5960-05 PIN ASSY

CN5 E40-6654-05 PIN ASSYCN6 E40-6653-05 PIN ASSYCN700 ∗ E41-2717-05 PIN ASSY

CN701 ∗ E41-2716-05 PIN ASSYCN702 ∗ E40-6734-05 FLAT CABLE CONNECTORCN703 E41-2735-05 PIN ASSYCN705 E40-6654-05 PIN ASSYCN706 E40-5960-05 PIN ASSY

J700 E58-0526-05 MODULAR JACK

W1 E37-0031-15 PROCESSED LEAD WIRE

L1 -5 L92-0140-05 CHIP FERRITEL6 L41-1005-32 SMALL FIXED INDUCTOR(10UH)L7 L92-0140-05 CHIP FERRITEL9 L41-1005-32 SMALL FIXED INDUCTOR(10UH)L10 ,11 L92-0140-05 CHIP FERRITE

L12 ,13 L41-1005-32 SMALL FIXED INDUCTOR(10UH)

X1 L77-1956-05 CRYSTAL RESONATOR(14.7456MHZ)X2 L77-1799-05 CRYSTAL RESONATOR(16.515MHZ)

CP1 -7 RK75GB1J102J CHIP-COM 1.0K J 1/16WCP10,11 RK75GB1J471J CHIP-COM 470 J 1/16WCP14,15 RK75GB1J471J CHIP-COM 470 J 1/16WCP700-703 RK75GB1J471J CHIP-COM 470 J 1/16W

R1 RK73GB2A101J CHIP R 100 J 1/10WR2 RK73GB2A103J CHIP R 10K J 1/10WR3 RK73GB2A473J CHIP R 47K J 1/10WR4 ,5 RK73GB2A103J CHIP R 10K J 1/10WR6 RK73GB2A105J CHIP R 1.0M J 1/10W

R7 RK73GB2A471J CHIP R 470 J 1/10WR8 RK73FB2B2R2J CHIP R 2.2 J 1/8WR9 RK73GB2A473J CHIP R 47K J 1/10WR10 RK73GB2A000J CHIP R 0.0 J 1/10WR16 RK73GB2A473J CHIP R 47K J 1/10W

R27 -29 RK73PB2H220J CHIP R 22 J 1/2WR30 ,31 RK73GB2A102J CHIP R 1.0K J 1/10WR32 RK73GB2A104J CHIP R 100K J 1/10WR33 ,34 RK73GB2A102J CHIP R 1.0K J 1/10WR35 RK73GB2A332J CHIP R 3.3K J 1/10W

R36 ,37 RK73GB2A102J CHIP R 1.0K J 1/10WR38 RK73GB2A183J CHIP R 18K J 1/10WR39 RK73GB2A472J CHIP R 4.7K J 1/10WR40 -43 RK73GB2A102J CHIP R 1.0K J 1/10WR44 RK73GB2A332J CHIP R 3.3K J 1/10W

R45 RK73GB2A333J CHIP R 33K J 1/10WR46 RK73GB2A683J CHIP R 68K J 1/10WR47 RK73GB2A104J CHIP R 100K J 1/10WR48 RK73GB2A473J CHIP R 47K J 1/10WR49 RK73GB2A183J CHIP R 18K J 1/10W

R66 RK73GB2A104J CHIP R 100K J 1/10WR69 RK73GB2A104J CHIP R 100K J 1/10WR70 RK73GB2A563J CHIP R 56K J 1/10WR71 RK73GB2A474J CHIP R 470K J 1/10WR72 -74 RK73GB2A222J CHIP R 2.2K J 1/10W

R76 RK73GB2A473J CHIP R 47K J 1/10WR78 RK73GB2A473J CHIP R 47K J 1/10WR80 RK73GB2A474J CHIP R 470K J 1/10WR86 RK73FB2B000J CHIP R 0.0 J 1/8WR90 -93 RK73FB2B000J CHIP R 0.0 J 1/8W

Page 13: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

CONTROL UNIT (X53-4210-10)

13

TKR-740

R94 RK73GB2A000J CHIP R 0.0 J 1/10WR95 RK73GB2A104J CHIP R 100K J 1/10WR96 RK73GB2A124J CHIP R 120K J 1/10WR100 RK73GB2A273J CHIP R 27K J 1/10WR101 RK73GB2A473J CHIP R 47K J 1/10W

R103 RK73GB2A563J CHIP R 56K J 1/10WR104 RK73GB2A333J CHIP R 33K J 1/10WR105 RK73GB2A223J CHIP R 22K J 1/10WR106 RK73GB2A224J CHIP R 220K J 1/10WR107,108 RK73GB2A223J CHIP R 22K J 1/10W

R109 RK73GB2A473J CHIP R 47K J 1/10WR110 RK73GB2A334J CHIP R 330K J 1/10WR114-120 RK73FB2B000J CHIP R 0.0 J 1/8WR121 RK73GB2A333J CHIP R 33K J 1/10WR122 RK73GB2A563J CHIP R 56K J 1/10W

R123 RK73GB2A103J CHIP R 10K J 1/10WR124 RK73GB2A273J CHIP R 27K J 1/10WR125 RK73GB2A102J CHIP R 1.0K J 1/10WR126 RK73GB2A103J CHIP R 10K J 1/10WR127 RK73GB2A123J CHIP R 12K J 1/10W

R128 RK73GB2A224J CHIP R 220K J 1/10WR129 RK73GB2A104J CHIP R 100K J 1/10WR130 RK73GB2A124J CHIP R 120K J 1/10WR131 RK73GB2A473J CHIP R 47K J 1/10WR132 RK73GB2A103J CHIP R 10K J 1/10W

R133 RK73GB2A273J CHIP R 27K J 1/10WR134 RK73GB2A104J CHIP R 100K J 1/10WR135 RK73GB2A273J CHIP R 27K J 1/10WR136,137 RK73GB2A103J CHIP R 10K J 1/10WR138 RK73GB2A104J CHIP R 100K J 1/10W

R139 RK73GB2A124J CHIP R 120K J 1/10WR140 RK73FB2B000J CHIP R 0.0 J 1/8WR141,142 RK73GB2A101J CHIP R 100 J 1/10WR143,144 RK73GB2A102J CHIP R 1.0K J 1/10WR145-148 RK73GB2A122J CHIP R 1.2K J 1/10W

R149-152 RK73GB2A473J CHIP R 47K J 1/10WR153,154 RK73GB2A122J CHIP R 1.2K J 1/10WR155-157 RK73GB2A102J CHIP R 1.0K J 1/10WR158,159 RK73GB2A473J CHIP R 47K J 1/10WR160 RK73GB2A101J CHIP R 100 J 1/10W

R161,162 RK73GB2A473J CHIP R 47K J 1/10WR164 RK73GB2A104J CHIP R 100K J 1/10WR165 RK73GB2A124J CHIP R 120K J 1/10WR166-168 RK73GB2A223J CHIP R 22K J 1/10WR169 RK73GB2A103J CHIP R 10K J 1/10W

R171 RK73GB2A154J CHIP R 150K J 1/10WR172 RK73GB2A102J CHIP R 1.0K J 1/10WR173 RK73GB2A223J CHIP R 22K J 1/10WR174 RK73GB2A473J CHIP R 47K J 1/10WR175 RK73GB2A102J CHIP R 1.0K J 1/10W

R176 RK73GB2A104J CHIP R 100K J 1/10WR177-180 RK73GB2A473J CHIP R 47K J 1/10WR181 RK73GB2A103J CHIP R 10K J 1/10WR182 RK73GB2A473J CHIP R 47K J 1/10WR183 RK73GB2A102J CHIP R 1.0K J 1/10W

R184 RK73GB2A223J CHIP R 22K J 1/10WR185,186 RK73GB2A473J CHIP R 47K J 1/10WR187 RK73GB2A102J CHIP R 1.0K J 1/10WR188 RK73GB2A473J CHIP R 47K J 1/10WR189 RK73GB2A472J CHIP R 4.7K J 1/10W

R190 RK73GB2A473J CHIP R 47K J 1/10WR191 RK73GB2A472J CHIP R 4.7K J 1/10WR192 RK73GB2A103J CHIP R 10K J 1/10WR193 RK73FB2B000J CHIP R 0.0 J 1/8WR194 RK73GB2A183J CHIP R 18K J 1/10W

R195 RK73GB2A102J CHIP R 1.0K J 1/10WR196 RK73GB2A473J CHIP R 47K J 1/10WR197 RK73GB2A000J CHIP R 0.0 J 1/10WR199 RK73GB2A101J CHIP R 100 J 1/10WR200 RK73GB2A471J CHIP R 470 J 1/10W

R202,203 RK73GB2A102J CHIP R 1.0K J 1/10WR204 RK73GB2A000J CHIP R 0.0 J 1/10WR205,206 RK73GB2A102J CHIP R 1.0K J 1/10WR207 RK73GB2A473J CHIP R 47K J 1/10WR208,209 RK73GB2A000J CHIP R 0.0 J 1/10W

R210-215 RK73GB2A102J CHIP R 1.0K J 1/10WR216 RK73GB2A473J CHIP R 47K J 1/10WR217,218 RK73GB2A102J CHIP R 1.0K J 1/10WR219,220 RK73GB2A473J CHIP R 47K J 1/10WR221-227 RK73GB2A102J CHIP R 1.0K J 1/10W

R228 RK73GB2A101J CHIP R 100 J 1/10WR229 RK73GB2A000J CHIP R 0.0 J 1/10WR230 RK73GB2A101J CHIP R 100 J 1/10WR231 RK73GB2A102J CHIP R 1.0K J 1/10WR232 RK73GB2A101J CHIP R 100 J 1/10W

R233-236 RK73GB2A102J CHIP R 1.0K J 1/10WR237 RK73GB2A473J CHIP R 47K J 1/10WR238-240 RK73GB2A102J CHIP R 1.0K J 1/10WR241 RK73GB2A472J CHIP R 4.7K J 1/10WR242-252 RK73GB2A102J CHIP R 1.0K J 1/10W

R253 RK73GB2A101J CHIP R 100 J 1/10WR254 RK73GB2A102J CHIP R 1.0K J 1/10WR255 RK73GB2A101J CHIP R 100 J 1/10WR256 RK73GB2A102J CHIP R 1.0K J 1/10WR257 RK73GB2A473J CHIP R 47K J 1/10W

R258 RK73GB2A101J CHIP R 100 J 1/10WR259,260 RK73GB2A102J CHIP R 1.0K J 1/10WR261 RK73GB2A101J CHIP R 100 J 1/10WR262 RK73GB2A473J CHIP R 47K J 1/10WR263,264 RK73GB2A102J CHIP R 1.0K J 1/10W

R265 RK73GB2A101J CHIP R 100 J 1/10WR266 RK73GB2A473J CHIP R 47K J 1/10WR267,268 RK73GB2A102J CHIP R 1.0K J 1/10WR269 RK73GB2A101J CHIP R 100 J 1/10WR270 RK73GB2A473J CHIP R 47K J 1/10W

R271 RK73GB2A102J CHIP R 1.0K J 1/10WR272 RK73GB2A101J CHIP R 100 J 1/10WR273 RK73GB2A473J CHIP R 47K J 1/10WR274,275 RK73GB2A102J CHIP R 1.0K J 1/10WR276 RK73GB2A101J CHIP R 100 J 1/10W

R277 RK73GB2A473J CHIP R 47K J 1/10WR278 RK73GB2A102J CHIP R 1.0K J 1/10WR279 RK73GB2A473J CHIP R 47K J 1/10WR280 RK73GB2A102J CHIP R 1.0K J 1/10WR281 RK73GB2A101J CHIP R 100 J 1/10W

R282,283 RK73GB2A102J CHIP R 1.0K J 1/10WR284 RK73GB2A101J CHIP R 100 J 1/10WR285 RK73GB2A102J CHIP R 1.0K J 1/10WR286,287 RK73GB2A101J CHIP R 100 J 1/10WR288,289 RK73GB2A473J CHIP R 47K J 1/10W

Page 14: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

14

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

CONTROL UNIT (X53-4210-10)

TKR-740

R290 RK73GB2A101J CHIP R 100 J 1/10WR291 RK73GB2A472J CHIP R 4.7K J 1/10WR292 RK73GB2A473J CHIP R 47K J 1/10WR293 RK73GB2A101J CHIP R 100 J 1/10WR294-296 RK73GB2A473J CHIP R 47K J 1/10W

R297-301 RK73GB2A101J CHIP R 100 J 1/10WR302-305 RK73GB2A102J CHIP R 1.0K J 1/10WR306 RK73GB2A103J CHIP R 10K J 1/10WR307 RK73GB2A473J CHIP R 47K J 1/10WR310,311 RK73GB2A561J CHIP R 560 J 1/10W

R314-318 RK73GB2A473J CHIP R 47K J 1/10WR321-328 RK73GB2A102J CHIP R 1.0K J 1/10WR329 RK73GB2A101J CHIP R 100 J 1/10WR331 RK73GB2A473J CHIP R 47K J 1/10WR334 RK73GB2A392J CHIP R 3.9K J 1/10W

R335-342 RK73GB2A473J CHIP R 47K J 1/10WR343 RK73GB2A472J CHIP R 4.7K J 1/10WR344 RK73FB2B000J CHIP R 0.0 J 1/8WR345 RK73GB2A473J CHIP R 47K J 1/10WR346-348 RK73GB2A101J CHIP R 100 J 1/10W

R349-351 RK73GB2A473J CHIP R 47K J 1/10WR352 RK73GB2A101J CHIP R 100 J 1/10WR353-357 RK73GB2A473J CHIP R 47K J 1/10WR358-372 RK73GB2A102J CHIP R 1.0K J 1/10WR380 RK73GB2A102J CHIP R 1.0K J 1/10W

R700-705 RK73FB2B472J CHIP R 4.7K J 1/8WR706 RK73FB2B221J CHIP R 220 J 1/8WR707 RK73FB2B331J CHIP R 330 J 1/8WR708,709 RK73FB2B221J CHIP R 220 J 1/8WR710 RK73FB2B331J CHIP R 330 J 1/8W

R711 RK73FB2B472J CHIP R 4.7K J 1/8WR712 RK73PB2H101J CHIP R 100 J 1/2WR713 RK73PB2H330J CHIP R 33 J 1/2WR714 RK73PB2H101J CHIP R 100 J 1/2WR715 RK73PB2H680J CHIP R 68 J 1/2W

R716 RK73GB2A683J CHIP R 68K J 1/10WR717,718 RK73GB2A102J CHIP R 1.0K J 1/10WR719 RK73GB2A681J CHIP R 680 J 1/10WR720 RK73GB2A102J CHIP R 1.0K J 1/10WR721 RK73FB2B000J CHIP R 0.0 J 1/8W

R722,723 RK73GB2A102J CHIP R 1.0K J 1/10WR724 RK73GB2A682J CHIP R 6.8K J 1/10WR725 RK73GB2A103J CHIP R 10K J 1/10WR726 RK73GB2A224J CHIP R 220K J 1/10WR727 RK73GB2A103J CHIP R 10K J 1/10W

R728 RK73GB2A154J CHIP R 150K J 1/10WR729 RK73GB2A104J CHIP R 100K J 1/10WR730 RK73GB2A103J CHIP R 10K J 1/10WR731,732 RK73GB2A102J CHIP R 1.0K J 1/10WR733 RK73GB2A682J CHIP R 6.8K J 1/10W

R734 RK73GB2A103J CHIP R 10K J 1/10WR756 RK73PB2H680J CHIP R 68 J 1/2WR757 RK73GB2A473J CHIP R 47K J 1/10W

VR700 R12-6423-05 TRIMMING POT.(10K)VR701 R05-3442-05 POTENTIOMETER(10K)

S700-705 ∗ S70-0505-05 TACT SWITCHS706 S40-2441-15 PUSH SWITCH

D1 DA204U DIODE

D3 -22 DA204U DIODED24 -28 DA204U DIODED30 ,31 DA204U DIODED34 ,35 DA204U DIODE

D37 -39 DA204U DIODED700,701 LA301DB(N) LED ASSYD706 DA204U DIODED707 HSM88AS-E DIODED708 DA204U DIODE

D709 HSM88AS-E DIODED710 MINISMDC07502F VARISTORD711,712 DA204U DIODE

IC1 TC7S66FUF MOS-ICIC3 NJM78L05UA-ZB BI-POLAR ICIC4 TA7805FQ MOS-ICIC5 NJM78L08UA-ZB BI-POLAR ICIC6 TA7805FQ MOS-IC

IC7 AT29C02090TU ROM ICIC10 R3111H421C-F MOS-ICIC12,13 NJM4558E-ZB ANALOGUE ICIC14 BU4053BCF MOS-ICIC15,16 TC74VHC245FT MOS-IC

IC17,18 ∗ 30622M4-103GPU MICROPROCESSOR ICIC22,23 NJM4558E-ZB ANALOGUE ICIC24 ∗ TC74HC4040AF-F MOS-ICIC25 TC7S04F-F MOS-ICIC27 PCM3000E MOS-IC

IC29 BU4053BCF MOS-ICIC30 ∗ AD2185BSTZ133 MICROPROCESSOR ICIC31,32 NJM4558E-ZB ANALOGUE ICIC33 M62364FP-F MOS-ICIC34 NJM4558E-ZB ANALOGUE IC

IC35 ∗ TC7S32FU-F MOS-ICIC36 NJM4558E-ZB ANALOGUE ICIC37 BU4053BCF MOS-ICIC38 TC7S00FU-F MOS-ICIC39 BU4094BCFV MOS-IC

IC40 NJM4558E-ZB ANALOGUE ICIC42 ∗ ADM202EARWZ MOS-ICIC45 LA4422-E BI-POLAR ICIC46-49 ∗ TC7S32FU-F MOS-ICIC700-703 BU2114F MOS-IC

IC704 NJM78L05UA-ZB BI-POLAR ICIC705 TA78L05FF MOS-ICIC706 NJM78L05UA-ZB BI-POLAR IC

Q1 2SK1824-A FETQ2 DTC114EUA DIGITAL TRANSISTORQ5 2SK1824-A FETQ8 DTC144EUA DIGITAL TRANSISTORQ9 DTC114EUA DIGITAL TRANSISTOR

Q10 DTC144EUA DIGITAL TRANSISTORQ11 DTC363EU DIGITAL TRANSISTORQ12 DTC114EUA DIGITAL TRANSISTORQ13 DTD123TK DIGITAL TRANSISTORQ14 DTC114EKA DIGITAL TRANSISTOR

Q15 DTD123TK DIGITAL TRANSISTORQ16 DTC114EKA DIGITAL TRANSISTORQ700 2SA1586(Y,GR)F TRANSISTORQ701 2SC4116(Y)F TRANSISTOR

If a part reference number is listed in a shaded box, that part does not come with the PCB.

Page 15: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

RX UNIT (X55-308X-XX)

15

TKR-740

Q706 DTA114EUA DIGITAL TRANSISTOR

Q707 DTC144EUA DIGITAL TRANSISTORQ708 DTA114EUA DIGITAL TRANSISTORQ709,710 DTC144EUA DIGITAL TRANSISTOR

D9 B30-2130-05 LED(YG)

C1 CC73GCH1H050C CHIP C 5.0PF CC2 ,3 CK73GB1H102K CHIP C 1000PF KC4 -6 CK73GB1H103K CHIP C 0.010UF KC7 CK73GB1H102K CHIP C 1000PF KC8 CS77CA1VR22M CHIP TNTL 0.22UF 35WV

C9 CK73FB1C105K CHIP C 1.0UF KC10 CS77AA0J2R2M CHIP TNTL 2.2UF 6.3WV K2,EC10 ∗ CS77CA1A2R2M CHIP TNTL 2.2UF 10WV K,K3C11 CK73GB1H102K CHIP C 1000PF KC12 CC73GCH1H470J CHIP C 47PF J

C13 CK73GB1H102K CHIP C 1000PF KC14 CS77CA1V0R1M CHIP TNTL 0.1UF 35WVC15 CC73FCH1H150G CHIP C 15PF GC16 CC73GCH1H150J CHIP C 15PF JC17 CC73FCH1H470J CHIP C 47PF J

C18 -20 CK73GB1H102K CHIP C 1000PF KC21 CC73FCH1H120G CHIP C 12PF GC23 CC73GCH1H040C CHIP C 4.0PF CC24 CK73GB1H103K CHIP C 0.010UF KC25 CC73FCH1H470J CHIP C 47PF J

C26 CK73GB1H102K CHIP C 1000PF KC27 CK73GB1H103K CHIP C 0.010UF KC29 CK73GB1H103K CHIP C 0.010UF KC30 ,31 CK73GB1H102K CHIP C 1000PF KC32 CC73FCH1H150G CHIP C 15PF G K,K2,E

C32 CC73FCH1H180J CHIP C 18PF J K3C33 CC73GCH1H220J CHIP C 22PF JC34 -36 CK73GB1H102K CHIP C 1000PF KC37 CK73GB1H103K CHIP C 0.010UF KC38 CK73FB1C105K CHIP C 1.0UF K

C39 CC73GCH1H390J CHIP C 39PF JC40 CC73FCH1H150G CHIP C 15PF GC41 CK73GB1H103K CHIP C 0.010UF KC43 ,44 CC73FCH1H150G CHIP C 15PF GC45 ,46 CK73GB1H102K CHIP C 1000PF K

C47 CC73FCH1H150G CHIP C 15PF GC48 CS77AA1A100M CHIP TNTL 10UF 10WVC49 CC73GCH1H0R5B CHIP C 0.5PF BC50 CC73FCH1H150G CHIP C 15PF GC53 CS77AA1A100M CHIP TNTL 10UF 10WV

C54 CK73GB1H102K CHIP C 1000PF KC55 CK73GB1H103K CHIP C 0.010UF KC56 CS77AA1A100M CHIP TNTL 10UF 10WVC57 CC73GCH1H0R5B CHIP C 0.5PF BC58 CK73GB1H102K CHIP C 1000PF K

C59 CS77AA1A100M CHIP TNTL 10UF 10WVC60 ,61 CK73FB1E104K CHIP C 0.10UF KC62 CK73GB1H103K CHIP C 0.010UF KC65 CC73GCH1H060B CHIP C 6.0PF B K,K3C66 CK73GB1H102K CHIP C 1000PF K

C67 CC73GCH1H060B CHIP C 6.0PF B K,K3

C70 CC73GCH1H050C CHIP C 5.0PF C K3C70 CK73GB1H102K CHIP C 1000PF K K,K2,EC71 CC73GCH1H270J CHIP C 27PF JC72 CK73GB1H103K CHIP C 0.010UF K

C73 ,74 CK73GB1H102K CHIP C 1000PF KC75 CC73GCH1H270J CHIP C 27PF JC76 CC73GCH1H100D CHIP C 10PF DC77 CK73FB1E104K CHIP C 0.10UF KC78 CC73GCH1H090D CHIP C 9.0PF D K2,E

C78 CC73GCH1H100D CHIP C 10PF D KC78 CC73GCH1H120J CHIP C 12PF J K3C79 CC73GCH1H150J CHIP C 15PF JC80 CC73GCH1H180J CHIP C 18PF J K2,EC80 CC73GCH1H220J CHIP C 22PF J K

C80 CC73GCH1H270J CHIP C 27PF J K3C82 ∗ C92-0897-05 ELECTRO 470UF 16WVC83 CK73GB1H103K CHIP C 0.010UF KC84 CS77AB20J470M CHIP TNTL 47UF 6.3WVC85 CK73GB1H103K CHIP C 0.010UF K

C86 ,87 CC73GCH1H150J CHIP C 15PF J K3C88 CS77AB21C220M CHIP TNTL 22UF 16WVC89 -91 CK73GB1H103K CHIP C 0.010UF KC92 CC73GCH1H040C CHIP C 4.0PF CC93 CC73GCH1H680J CHIP C 68PF J

C94 ,95 CC73GCH1H040C CHIP C 4.0PF CC96 CM73F2H120J CHIP C 12PF JC97 CC73GCH1H220J CHIP C 22PF J K3C98 CC73GCH1H180J CHIP C 18PF JC100 CC73GCH1H040C CHIP C 4.0PF C

C101 CK73FB1E223K CHIP C 0.022UF KC104 CC73GCH1H680J CHIP C 68PF JC105,106 CS77AB21A470M CHIP TNTL 47UF 10WVC107 CC73GCH1H080B CHIP C 8.0PF B K,K3C107 CC73GCH1H121J CHIP C 120PF J K2,E

C108-110 CK73GB1H103K CHIP C 0.010UF KC111,112 CK73FB1E104K CHIP C 0.10UF KC113 CK73GB1H103K CHIP C 0.010UF KC114 CK73GB1H102K CHIP C 1000PF KC115 CK73FB1E104K CHIP C 0.10UF K

C116 CK73GB1H103K CHIP C 0.010UF KC117 CK73GB1H102K CHIP C 1000PF KC118-120 CK73GB1H103K CHIP C 0.010UF KC121 CC73GCH1H030C CHIP C 3.0PF CC122 CK73FB1E104K CHIP C 0.10UF K

C123 CK73GB1H562K CHIP C 5600PF KC124 CS77AB21C220M CHIP TNTL 22UF 16WVC125 CC73GCH1H030C CHIP C 3.0PF CC126 CK73FB1E104K CHIP C 0.10UF KC127 CK73GB1H562K CHIP C 5600PF K

C128 CC73GCH1H2R5C CHIP C 2.5PF CC129 CK73GB1C393K CHIP C 0.039UF KC130 CC73GCH1H040C CHIP C 4.0PF CC131 CC73GCH1H680J CHIP C 68PF JC132 CK73FB1E104K CHIP C 0.10UF K

C133 CK73GB1H103K CHIP C 0.010UF KC134 CS77AB21C220M CHIP TNTL 22UF 16WVC135 CK73GB1H103K CHIP C 0.010UF KC136 CC73GCH1H030C CHIP C 3.0PF CC137 CK73GB1H103K CHIP C 0.010UF K

RX UNIT (X55-308X-XX) 0-11:K, 0-12:K3, 2-71:K2,E

CONTROL UNIT (X53-4210-10)

Page 16: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

16

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

RX UNIT (X55-308X-XX)

TKR-740

C138 CK73GB1C333K CHIP C 0.033UF KC139 CC73GCH1H680J CHIP C 68PF JC140 CS77CA1V0R1M CHIP TNTL 0.1UF 35WVC141 CC73GCH1H030C CHIP C 3.0PF CC142 CK73FB1E104K CHIP C 0.10UF K

C143 CK73GB1H103K CHIP C 0.010UF KC144 CC73GCH1H220J CHIP C 22PF JC145 CK73GB1E223K CHIP C 0.022UF KC146-148 CK73GB1H103K CHIP C 0.010UF KC149 CK73GB1H102K CHIP C 1000PF K

C150 CS77BA0J470M CHIP TNTL 47UF 6.3WVC151 CK73GB1H103K CHIP C 0.010UF KC152 CC73GCH1H090D CHIP C 9.0PF DC153 CK73GB1H102K CHIP C 1000PF KC154 CK73GB1H103K CHIP C 0.010UF K

C155 CC73GCH1H220J CHIP C 22PF JC156,157 CK73GB1H102K CHIP C 1000PF KC158,159 CK73GB1H103K CHIP C 0.010UF KC160 CK73FB1E104K CHIP C 0.10UF KC161 CK73GB1H102K CHIP C 1000PF K

C162 CK73GB1H103K CHIP C 0.010UF KC163 CC73GCH1H090D CHIP C 9.0PF DC164 CK73GB1H102K CHIP C 1000PF KC165 CS77CA1ER47M CHIP TNTL 0.47UF 25WVC166 CC73GCH1H080D CHIP C 8.0PF D

C167 CK73FB1E104K CHIP C 0.10UF KC168 CK73GB1H103K CHIP C 0.010UF KC169,170 CS77AA1A100M CHIP TNTL 10UF 10WVC171 CS77CA1ER47M CHIP TNTL 0.47UF 25WVC172,173 CK73FB1E104K CHIP C 0.10UF K

C174,175 CK73GB1H102K CHIP C 1000PF KC176,177 CK73FB1E104K CHIP C 0.10UF KC178,179 CK73GB1H221K CHIP C 220PF KC180 CK73FB1E104K CHIP C 0.10UF KC181,182 CK73GB1H221K CHIP C 220PF K

C183-186 CK73FB1E104K CHIP C 0.10UF KC187,188 CK73GB1H102K CHIP C 1000PF KC189,190 CC73GCH1H270J CHIP C 27PF JC191,192 CK73FB1E104K CHIP C 0.10UF KC193 CC73GCH1H680J CHIP C 68PF J

C194 CC73GCH1H220J CHIP C 22PF JC195 CK73GB1H102K CHIP C 1000PF KC196 CS77AA1A100M CHIP TNTL 10UF 10WVC197 CK73GB1H102K CHIP C 1000PF KC198 CS77AA1A100M CHIP TNTL 10UF 10WV

C199,200 CS77BA0J470M CHIP TNTL 47UF 6.3WVC201,202 CK73FB1E104K CHIP C 0.10UF KC203 CS77AA0G470M CHIP TNTL 47UF 4.0WVC204 CS77AA1A100M CHIP TNTL 10UF 10WVC207 CK73GB1H102K CHIP C 1000PF K

C208 CK73FB1E104K CHIP C 0.10UF KC209 CK73GB1H103K CHIP C 0.010UF KC210 CS77AB21C220M CHIP TNTL 22UF 16WVC211 CC73GCH1H080D CHIP C 8.0PF DC212 CK73GB1H103K CHIP C 0.010UF K

C213 CS77AA1A2R2M CHIP TNTL 2.2UF 10WVC217 CK73GB1H102K CHIP C 1000PF KC218 CC73GCH1H220J CHIP C 22PF JC219 CC73GCH1H101J CHIP C 100PF JC220 CC73GCH1H180J CHIP C 18PF J K2,E

C220 CC73GCH1H220J CHIP C 22PF J KC220 CC73GCH1H270J CHIP C 27PF J K3C221 CC73FCH1H040B CHIP C 4.0PF B K3C221,222 CC73FCH1H040B CHIP C 4.0PF B K,K2,EC222 CC73FCH1H020B CHIP C 2.0PF B K3

C226 CK73GB1H103K CHIP C 0.010UF KC228,229 CK73FB1E104K CHIP C 0.10UF KC306 CK73GB1H103K CHIP C 0.010UF KC313 CC73GCH1H010C CHIP C 1.0PF C K2,EC313 CC73GCH1H080B CHIP C 8.0PF B K,K3

C316 CC73GCH1H020B CHIP C 2.0PF B K,K3C321 CC73GCH1H040B CHIP C 4.0PF B K,K3C321 CC73GCH1H121J CHIP C 120PF J K2,EC327 CC73GCH1H020B CHIP C 2.0PF B K,K3C327 CC73GCH1H050C CHIP C 5.0PF C K2,E

C329 CK73GB1H471K CHIP C 470PF KC333 CK73GB1H471K CHIP C 470PF KC346 CC73GCH1H121J CHIP C 120PF JC384,385 CK73GB1H471K CHIP C 470PF KC387 CK73GB1C104K CHIP C 0.10UF K

C388 CK73GB1H471K CHIP C 470PF KC389 CK73GB1C104K CHIP C 0.10UF KC391 CK73GB1H471K CHIP C 470PF KC402 CK73GB1H471K CHIP C 470PF KC403,404 CK73GB1C104K CHIP C 0.10UF K

TC1 ,2 C05-0393-05 CERAMIC TRIMMER CAPACITOR(8PF)

CN1 E04-0409-15 RF COAXIAL RECEPTACLE(SMB)CN2 E04-0154-05 PIN SOCKETCN3 -5 E41-2735-05 PIN ASSYCN6 ∗ E40-6724-05 FLAT CABLE CONNECTORCN7 E04-0409-15 RF COAXIAL RECEPTACLE(SMB)

CF1 ∗ L72-1027-05 CERAMIC FILTERCF2 ∗ L72-1028-05 CERAMIC FILTERCF3 ∗ L72-1027-05 CERAMIC FILTERCF4 ∗ L72-1028-05 CERAMIC FILTERCF5 L72-1029-05 CERAMIC FILTER

L1 L34-4523-05 AIR-CORE COILL2 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L3 ∗ L79-1872-05 HELICAL BLOCK K2,EL3 ∗ L79-1901-05 HELICAL BLOCK K3L3 ∗ L79-1902-05 HELICAL BLOCK K

L4 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L5 L41-4775-33 SMALL FIXED INDUCTOR(0.047UH)L6 ,7 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L8 L34-4586-05 AIR-CORE COIL KL8 L34-4598-05 AIR-CORE COIL K2,E

L8 L34-4599-05 AIR-CORE COIL K3L9 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L10 L34-4586-05 AIR-CORE COIL KL10 L34-4598-05 AIR-CORE COIL K2,EL10 L34-4599-05 AIR-CORE COIL K3

L11 L41-1575-33 SMALL FIXED INDUCTOR(0.015UH) K,K3L11 L41-2285-33 SMALL FIXED INDUCTOR(0.22UH) K2,EL12 L41-1085-33 SMALL FIXED INDUCTOR(0.1UH)L13 L41-8275-33 SMALL FIXED INDUCTOR(0.082UH)L14 ,15 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L16 ∗ L79-1873-05 HELICAL BLOCK K2,EL16 ∗ L79-1899-05 HELICAL BLOCK KL16 ∗ L79-1900-05 HELICAL BLOCK K3

Page 17: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

RX UNIT (X55-308X-XX)

17

TKR-740

L17 ,18 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L19 L41-4775-33 SMALL FIXED INDUCTOR(0.047UH)

L20 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L21 L41-4775-33 SMALL FIXED INDUCTOR(0.047UH)L22 L41-6875-33 SMALL FIXED INDUCTOR(0.068UH)L23 L41-4775-33 SMALL FIXED INDUCTOR(0.047UH)L24 L41-1015-33 SMALL FIXED INDUCTOR(100UH)

L25 L41-3975-33 SMALL FIXED INDUCTOR(0.039UH) K3L26 L41-4775-33 SMALL FIXED INDUCTOR(0.047UH)L27 ,28 L34-4794-05 COILL30 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L31 ,32 L34-4794-05 COIL

L33 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L34 ,35 L40-1281-37 SMALL FIXED INDUCTOR(0.120UH)L36 ,37 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L38 -41 L34-4794-05 COILL42 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L43 ,44 L34-4794-05 COILL45 L40-1281-37 SMALL FIXED INDUCTOR(0.120UH)L46 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L47 L40-1281-37 SMALL FIXED INDUCTOR(0.120UH)L48 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L49 L41-1278-14 SMALL FIXED INDUCTOR(12NH) K,K3L49 L41-8278-14 SMALL FIXED INDUCTOR(82NH) K2,EL51 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L52 ,53 L34-4725-05 COILL54 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)

L55 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L56 L41-1075-33 SMALL FIXED INDUCTOR(0.01UH)L58 L41-4775-33 SMALL FIXED INDUCTOR(0.047UH)L64 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L65 L41-3375-33 SMALL FIXED INDUCTOR(0.033UH)

L66 L41-1885-33 SMALL FIXED INDUCTOR(0.18UH)L363 L41-1278-14 SMALL FIXED INDUCTOR(12NH) K,K3L363,364 L41-2278-14 SMALL FIXED INDUCTOR(22NH) K2,E

X1 ,2 L77-1788-05 CRYSTAL RESONATOR(44.4MHZ)

XF1 L71-0542-05 MCF(44.85MHZ WIDE)XF2 L71-0543-05 MCF(44.85MHZ NARROW)XF3 L71-0544-05 MCF(44.85MHZ WIDE)XF4 L71-0545-05 MCF(44.85MHZ NARROW)

CP1 RK75GB1J102J CHIP-COM 1.0K J 1/16W

R1 RK73GB2A105J CHIP R 1.0M J 1/10WR2 RK73GB2A183J CHIP R 18K J 1/10WR3 ,4 RK73GB2A473J CHIP R 47K J 1/10WR5 RK73GB2A000J CHIP R 0.0 J 1/10WR6 RK73GB2A223J CHIP R 22K J 1/10W

R7 RK73GB2A470J CHIP R 47 J 1/10WR8 RK73GB2A000J CHIP R 0.0 J 1/10WR9 RK73GB2A560J CHIP R 56 J 1/10WR10 -12 RK73GB2A102J CHIP R 1.0K J 1/10WR13 RK73GB2A182J CHIP R 1.8K J 1/10W

R14 RK73GB2A560J CHIP R 56 J 1/10WR15 RK73GB2A182J CHIP R 1.8K J 1/10WR16 RK73GB2A222J CHIP R 2.2K J 1/10WR18 ,19 RK73GB2A103J CHIP R 10K J 1/10WR20 RK73FB2B100J CHIP R 10 J 1/8W

R21 RK73GB2A561J CHIP R 560 J 1/10W

R22 RK73GB2A102J CHIP R 1.0K J 1/10WR23 RK73GB2A122J CHIP R 1.2K J 1/10WR24 RK73GB2A000J CHIP R 0.0 J 1/10WR25 RK73FB2B100J CHIP R 10 J 1/8W

R26 RK73GB2A101J CHIP R 100 J 1/10WR27 RK73GB2A000J CHIP R 0.0 J 1/10W K2,ER28 RK73GB2A000J CHIP R 0.0 J 1/10W KR30 RK73GB2A101J CHIP R 100 J 1/10WR31 RK73GB2A000J CHIP R 0.0 J 1/10W K3

R32 RK73GB2A101J CHIP R 100 J 1/10WR33 RK73GB2A000J CHIP R 0.0 J 1/10WR34 RK73GB2A102J CHIP R 1.0K J 1/10WR35 ,36 RK73GB2A181J CHIP R 180 J 1/10WR37 RK73GB2A270J CHIP R 27 J 1/10W

R38 RK73FB2B000J CHIP R 0.0 J 1/8WR39 RK73GB2A101J CHIP R 100 J 1/10WR41 RK73GB2A271J CHIP R 270 J 1/10W K2,ER41 RK73GB2A331J CHIP R 330 J 1/10W K,K3R42 ,43 RK73GB2A000J CHIP R 0.0 J 1/10W

R44 RK73GB2A470J CHIP R 47 J 1/10WR45 RK73GB2A103J CHIP R 10K J 1/10WR46 RK73GB2A472J CHIP R 4.7K J 1/10WR47 RK73GB2A104J CHIP R 100K J 1/10WR48 RK73GB2A470J CHIP R 47 J 1/10W

R49 RK73GB2A271J CHIP R 270 J 1/10W K,K2,ER49 RK73GB2A331J CHIP R 330 J 1/10W K3R50 ,51 RK73GB2A222J CHIP R 2.2K J 1/10WR52 RK73GB2A101J CHIP R 100 J 1/10WR53 ,54 RK73GB2A103J CHIP R 10K J 1/10W

R55 RK73GB2A000J CHIP R 0.0 J 1/10WR56 RK73GB2A223J CHIP R 22K J 1/10WR57 RK73GB2A101J CHIP R 100 J 1/10WR58 RK73GB2A472J CHIP R 4.7K J 1/10WR60 RK73GB2A101J CHIP R 100 J 1/10W

R61 RK73GB2A472J CHIP R 4.7K J 1/10WR62 RK73GB2A000J CHIP R 0.0 J 1/10WR63 RK73GB2A471J CHIP R 470 J 1/10WR64 RK73GB2A101J CHIP R 100 J 1/10WR65 RK73GB2A102J CHIP R 1.0K J 1/10W

R66 RK73GB2A104J CHIP R 100K J 1/10WR67 ,68 RK73GB2A821J CHIP R 820 J 1/10WR69 RK73GB2A000J CHIP R 0.0 J 1/10WR70 RK73GB2A470J CHIP R 47 J 1/10WR71 RK73FB2B120J CHIP R 12 J 1/8W

R72 RK73GB2A100J CHIP R 10 J 1/10WR73 ,74 RK73GB2A471J CHIP R 470 J 1/10WR75 RK73GB2A104J CHIP R 100K J 1/10WR76 RK73GB2A182J CHIP R 1.8K J 1/10WR77 RK73GB2A102J CHIP R 1.0K J 1/10W

R78 RK73GB2A103J CHIP R 10K J 1/10WR79 RK73GB2A684J CHIP R 680K J 1/10WR80 RK73GB2A122J CHIP R 1.2K J 1/10WR81 RK73GB2A103J CHIP R 10K J 1/10WR82 RK73FB2B220J CHIP R 22 J 1/8W

R83 RK73GB2A684J CHIP R 680K J 1/10WR84 RK73GB2A103J CHIP R 10K J 1/10WR85 RK73GB2A182J CHIP R 1.8K J 1/10WR90 RK73GB2A681J CHIP R 680 J 1/10WR92 RK73GB2A681J CHIP R 680 J 1/10W

Page 18: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

18

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

RX UNIT (X55-308X-XX)

TKR-740

R93 RK73GB2A680J CHIP R 68 J 1/10WR95 RK73GB2A152J CHIP R 1.5K J 1/10WR96 RK73GB2A470J CHIP R 47 J 1/10WR97 RK73FB2B220J CHIP R 22 J 1/8WR98 RK73GB2A680J CHIP R 68 J 1/10W

R99 RK73GB2A152J CHIP R 1.5K J 1/10WR100 RK73GB2A470J CHIP R 47 J 1/10WR101 RK73GB2A220J CHIP R 22 J 1/10WR102 RK73GB2A680J CHIP R 68 J 1/10WR103 RK73GB2A101J CHIP R 100 J 1/10W

R104 RK73GB2A220J CHIP R 22 J 1/10WR105 RK73GB2A680J CHIP R 68 J 1/10WR106 RK73GB2A222J CHIP R 2.2K J 1/10WR107 RK73GB2A564J CHIP R 560K J 1/10WR108 RK73GB2A473J CHIP R 47K J 1/10W

R109 RK73GB2A223J CHIP R 22K J 1/10WR111 RK73GB2A222J CHIP R 2.2K J 1/10WR114 RK73GB2A394J CHIP R 390K J 1/10WR115 RK73GB2A222J CHIP R 2.2K J 1/10WR116 RK73GB2A000J CHIP R 0.0 J 1/10W

R118 RK73GB2A104J CHIP R 100K J 1/10WR119 RK73GB2A393J CHIP R 39K J 1/10WR120 RK73EB2E000J CHIP R 0.0 J 1/4WR121 RK73GB2A104J CHIP R 100K J 1/10WR122 RK73GB2A680J CHIP R 68 J 1/10W

R123 RK73GB2A681J CHIP R 680 J 1/10WR124,125 RK73GB2A101J CHIP R 100 J 1/10WR126 RK73GB2A183J CHIP R 18K J 1/10WR127 RK73GB2A681J CHIP R 680 J 1/10WR128 RK73GB2A680J CHIP R 68 J 1/10W

R129 RK73GB2A152J CHIP R 1.5K J 1/10WR130 RK73GB2A101J CHIP R 100 J 1/10WR131 RK73GB2A470J CHIP R 47 J 1/10WR132 RK73GB2A103J CHIP R 10K J 1/10WR133 RK73GB2A680J CHIP R 68 J 1/10W

R134 RK73GB2A152J CHIP R 1.5K J 1/10WR135 RK73GB2A103J CHIP R 10K J 1/10WR136 RK73GB2A470J CHIP R 47 J 1/10WR137 RK73GB2A220J CHIP R 22 J 1/10WR138 RK73GB2A680J CHIP R 68 J 1/10W

R139 RK73GB2A101J CHIP R 100 J 1/10WR140 RK73GB2A104J CHIP R 100K J 1/10WR141 RK73FB2B681J CHIP R 680 J 1/8WR142 RK73GB2A220J CHIP R 22 J 1/10WR143 RK73GB2A680J CHIP R 68 J 1/10W

R144 RK73GB2A104J CHIP R 100K J 1/10WR145 RK73GB2A680J CHIP R 68 J 1/10WR146 RK73FB2B681J CHIP R 680 J 1/8WR147 RK73GB2A222J CHIP R 2.2K J 1/10WR148 RK73GB2A562J CHIP R 5.6K J 1/10W

R149,150 RK73GB2A154J CHIP R 150K J 1/10WR151 RK73GB2A222J CHIP R 2.2K J 1/10WR152,153 RK73GB2A103J CHIP R 10K J 1/10WR154,155 RK73GB2A223J CHIP R 22K J 1/10WR156,157 RK73GB2A332J CHIP R 3.3K J 1/10W

R158 RK73GB2A472J CHIP R 4.7K J 1/10WR159 RK73GB2A272J CHIP R 2.7K J 1/10WR160 RK73GB2A472J CHIP R 4.7K J 1/10WR161 RK73GB2A272J CHIP R 2.7K J 1/10WR162 RK73GB2A152J CHIP R 1.5K J 1/10W

R163 RK73GB2A102J CHIP R 1.0K J 1/10WR164,165 RK73GB2A473J CHIP R 47K J 1/10WR166 RK73GB2A474J CHIP R 470K J 1/10WR167 RK73GB2A224J CHIP R 220K J 1/10WR168 RK73GB2A122J CHIP R 1.2K J 1/10W

R169 RK73GB2A103J CHIP R 10K J 1/10WR170 RK73GB2A104J CHIP R 100K J 1/10WR171 RK73GB2A102J CHIP R 1.0K J 1/10WR172 RK73GB2A104J CHIP R 100K J 1/10WR173,174 RK73GB2A103J CHIP R 10K J 1/10W

R175 RK73GB2A224J CHIP R 220K J 1/10WR176-178 RK73GB2A104J CHIP R 100K J 1/10WR179 RK73FB2B000J CHIP R 0.0 J 1/8WR180 RK73GB2A331J CHIP R 330 J 1/10WR181 RK73GB2A102J CHIP R 1.0K J 1/10W

R182 RK73GB2A104J CHIP R 100K J 1/10WR184 RK73GB2A102J CHIP R 1.0K J 1/10WR185 RK73GB2A000J CHIP R 0.0 J 1/10WR186 RK73GB2A102J CHIP R 1.0K J 1/10WR187-191 RK73GB2A000J CHIP R 0.0 J 1/10W

R192 RK73GB2A104J CHIP R 100K J 1/10WR193 RK73FB2B220J CHIP R 22 J 1/8WR195 RK73GB2A331J CHIP R 330 J 1/10WR196 RK73GB2A221J CHIP R 220 J 1/10WR197 RK73GB2A153J CHIP R 15K J 1/10W

R198 RK73GB2A102J CHIP R 1.0K J 1/10WR199 RK73GB2A392J CHIP R 3.9K J 1/10WR302-304 RK73GB2A101J CHIP R 100 J 1/10WR380 RK73GB2A102J CHIP R 1.0K J 1/10WR381-387 RK73GB2A000J CHIP R 0.0 J 1/10W

R388 RK73GB2A101J CHIP R 100 J 1/10W K2,ER388 RK73GB2A820J CHIP R 82 J 1/10W K,K3R389 RK73GB2A151J CHIP R 150 J 1/10W K2,ER390,391 RK73GB2A103J CHIP R 10K J 1/10WR392 RK73GB2A223J CHIP R 22K J 1/10W

R393 RK73GB2A103J CHIP R 10K J 1/10WR394 RK73GB2A000J CHIP R 0.0 J 1/10W

D2 -4 1SV283F VARIABLE CAPACITANCE DIODED6 1SV283F VARIABLE CAPACITANCE DIODED10 DAN235K DIODED11 DAN202U DIODED12 1SS355 DIODE

IC2 NJM78L05UA-ZB BI-POLAR ICIC3 BU4094BCFV MOS-ICIC4 TA7808SQ BI-POLAR ICIC5 NJM2904E-ZB ANALOGUE ICIC6 BU4053BCF MOS-IC

IC7 ,8 TA31137FNG MOS-ICIC9 M62364FP-F MOS-ICIC10 AT24C08A10SU18 ROM ICIC11,12 NJM4558E-ZB ANALOGUE ICIC13 NJM78L08UA-ZB BI-POLAR IC

IC14 NJM2904E-ZB ANALOGUE ICIC15 NJM4558E-ZB ANALOGUE ICIC16 NJM78L05UA-ZB BI-POLAR ICIC17 AM1-G ANALOGUE ICIC18 TC7S66FUF MOS-IC

IC19 ∗ TC74HC14AF-F MOS-ICIC20 AD9835BRUZ MOS-IC

Page 19: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3140-10) : K, K2, K3

19

TKR-740

IC21 TC7S66FUF MOS-ICIC301 LMX2352TMX/NP ANALOGUE ICIC302 LMC7101BIM5 MOS-IC

Q1 2SC3357-A TRANSISTORQ3 2SC3120-F TRANSISTORQ5 2SC3357-A TRANSISTORQ6 2SC4226-A(R24) TRANSISTORQ7 2SC2873(Y)F TRANSISTOR

Q8 ,9 2SK508NV(K53) FETQ10 2SC3722K(S) TRANSISTORQ12 2SC3722K(S) TRANSISTORQ13 DTC114EUA DIGITAL TRANSISTORQ14 2SC4215-F(Y) TRANSISTOR

Q16 2SB1386(R) TRANSISTORQ17 2SC3722K(S) TRANSISTORQ18 ,19 DTC114EUA DIGITAL TRANSISTORQ20 2SB1386(R) TRANSISTORQ22 DTC114EUA DIGITAL TRANSISTOR

Q24 ,25 2SC3357-A TRANSISTORQ26 2SC4081(R) TRANSISTORQ28 2SC4081(R) TRANSISTORQ29 DTC114EUA DIGITAL TRANSISTORQ30 2SK1824-A FET

Q31 ,32 2SC3357-A TRANSISTORQ33 2SC4081(R) TRANSISTORQ34 ,35 ∗ 2SJ106-F(GR) FETQ36 -38 DTC114EUA DIGITAL TRANSISTORQ39 2SC4081(R) TRANSISTOR

TH1 ,2 157-153-65001 THERMISTOR

A1 ∗ W02-1982-15 DBM

D50 ,51 B30-2130-05 LED(YG)D52 B30-2048-05 LED

C1 ,2 CK73GB1H102K CHIP C 1000PF KC3 ,4 CC73GCH1H471J CHIP C 470PF JC5 CC73FCH1H080B CHIP C 8.0PF BC6 CK73GB1H102K CHIP C 1000PF KC7 CC73FCH1H120G CHIP C 12PF G

C8 CC73FCH1H470J CHIP C 47PF JC9 CC73FCH1H120G CHIP C 12PF GC10 CC73FCH1H560J CHIP C 56PF JC11 CK73GB1H103K CHIP C 0.010UF KC12 CC73GCH1H010B CHIP C 1.0PF B

C13 CK73GB1H102K CHIP C 1000PF KC14 CC73GCH1H010B CHIP C 1.0PF BC15 ,16 CK73GB1H102K CHIP C 1000PF KC17 CC73FCH1H100B CHIP C 10PF BC19 -22 CK73GB1H102K CHIP C 1000PF K

C23 CC73FCH1H080B CHIP C 8.0PF BC24 CK73GB1H103K CHIP C 0.010UF KC25 CC73FCH1H080B CHIP C 8.0PF BC26 CK73GB1H102K CHIP C 1000PF KC27 ,28 CC73GCH1H010B CHIP C 1.0PF B

C29 ∗ C92-0897-05 ELECTRO 470UF 16WVC30 CK73GB1H102K CHIP C 1000PF KC31 CK73GB1H103K CHIP C 0.010UF KC32 CS77AB21C220M CHIP TNTL 22UF 16WV

C33 CK73GB1H102K CHIP C 1000PF K

C34 CK73GB1H103K CHIP C 0.010UF KC35 ,36 CC73GCH1H100D CHIP C 10PF DC37 CK73GB1H102K CHIP C 1000PF KC38 CC73GCH1H470J CHIP C 47PF JC39 CK73GB1H471K CHIP C 470PF K

C40 CS77AB21C220M CHIP TNTL 22UF 16WVC41 CK73FB1E104K CHIP C 0.10UF KC42 CK73GB1H103K CHIP C 0.010UF KC43 CK73GB1H471K CHIP C 470PF KC45 CS77AB21C220M CHIP TNTL 22UF 16WV

C46 CK73FB1E104K CHIP C 0.10UF KC47 CK73GB1H103K CHIP C 0.010UF KC50 CK73GB1H471K CHIP C 470PF KC51 CC73GCH1H101J CHIP C 100PF JC52 CK73GB1H102K CHIP C 1000PF K

C53 -55 CK73GB1H471K CHIP C 470PF KC56 CC73GCH1H471J CHIP C 470PF JC57 ∗ CS77BA0J100M CHIP TNTL 10UF 6.3WVC58 ,59 CK73GB1H102K CHIP C 1000PF KC60 CK73GB1H471K CHIP C 470PF K

C61 CK73GB1H102K CHIP C 1000PF KC62 ,63 CK73GB1H471K CHIP C 470PF KC64 ,65 CC73GCH1H101J CHIP C 100PF JC66 CK73GB1H102K CHIP C 1000PF KC68 CK73GB1H103K CHIP C 0.010UF K

C70 ∗ CS77AA1C4R7M CHIP TNTL 4.7UF 16WVC71 -73 CK73GB1H103K CHIP C 0.010UF KC74 -76 CC73GCH1H470J CHIP C 47PF JC77 CK73GB1H103K CHIP C 0.010UF KC78 CK73GB1H222K CHIP C 2200PF K

C79 CK73GB1H102K CHIP C 1000PF KC80 CS77CA1A100M CHIP TNTL 10UF 10WVC82 CC73GCH1H100D CHIP C 10PF DC100 CC73GCH1H070D CHIP C 7.0PF DC101 CK73GB1H103K CHIP C 0.010UF K

C102 CS77CA1VR22M CHIP TNTL 0.22UF 35WVC103,104 CK73GB1H103K CHIP C 0.010UF KC105 CK73GB1H102K CHIP C 1000PF KC106 CK73GB1H471K CHIP C 470PF KC107 CS77CB21A220M CHIP TNTL 22UF 10WV

C108,109 CK73GB1H102K CHIP C 1000PF KC110 CK73GB1H103K CHIP C 0.010UF KC111 CS77CA1C010M CHIP TNTL 1.0UF 16WVC112 CK73GB1H102K CHIP C 1000PF KC113 CC73GCH1H100D CHIP C 10PF D

C114-116 CK73GB1H103K CHIP C 0.010UF KC118,119 CC73GCH1H221J CHIP C 220PF JC123 CK73FB1E104K CHIP C 0.10UF KC124 CS77AB21A470M CHIP TNTL 47UF 10WVC125,126 CK73GB1H103K CHIP C 0.010UF K

C127 CS77AB21A470M CHIP TNTL 47UF 10WVC128 CK73FB1E104K CHIP C 0.10UF KC130 CK73GB1H103K CHIP C 0.010UF KC131 CS77CA1A100M CHIP TNTL 10UF 10WVC132 CK73GB1H102K CHIP C 1000PF K

C133 CS77CA1A100M CHIP TNTL 10UF 10WVC134 CK73GB1H102K CHIP C 1000PF KC135 CS77CA1A100M CHIP TNTL 10UF 10WV

TX UNIT (X56-3140-10) : K, K2, K3

RX UNIT (X55-308X-XX)

Page 20: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

20

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3140-10) : K, K2, K3

TKR-740

C136 CS77BA0J470M CHIP TNTL 47UF 6.3WVC138 CS77BA0J470M CHIP TNTL 47UF 6.3WV

C139 CS77CA1C010M CHIP TNTL 1.0UF 16WVC140 CK73GB1H103K CHIP C 0.010UF KC141 CK73GB1H102K CHIP C 1000PF KC143 CC73GCH1H040C CHIP C 4.0PF CC144 CK73GB1H102K CHIP C 1000PF K

C145 CK73GB1H103K CHIP C 0.010UF KC147 CK73FB1E104K CHIP C 0.10UF KC165,166 CC73GCH1H101J CHIP C 100PF JC167 CK73GB1H102K CHIP C 1000PF KC168 CS77AB21C220M CHIP TNTL 22UF 16WV

C169 CK73GB1H103K CHIP C 0.010UF KC170 CK73FB1E104K CHIP C 0.10UF KC171,172 CK73GB1H102K CHIP C 1000PF KC173 CK73GB1H103K CHIP C 0.010UF KC174 CS77AB21A470M CHIP TNTL 47UF 10WV

C175 CK73FB1E104K CHIP C 0.10UF KC186 CK73GB1C104K CHIP C 0.10UF KC187,188 CK73GB1H102K CHIP C 1000PF KC201 ∗ CS77BA1A150M CHIP TNTL 15UF 10WVC203 CK73GB1H103K CHIP C 0.010UF K

C206,207 CC73GCH1H271J CHIP C 270PF JC208 CS77CA1A100M CHIP TNTL 10UF 10WVC209 CS77BA1E010M CHIP TNTL 1UF 25WVC210 CC73GCH1H820J CHIP C 82PF JC211 CK73GB1H102K CHIP C 1000PF K

C212 CC73GCH1H151J CHIP C 150PF JC213 CK73GB1H103K CHIP C 0.010UF KC214 CC73GCH1H100D CHIP C 10PF DC215,216 CK73GB1H103K CHIP C 0.010UF KC218,219 CC73GCH1H101J CHIP C 100PF J

C220 CK73GB1H103K CHIP C 0.010UF KC221-224 CC73GCH1H271J CHIP C 270PF JC225 CK73GB1H102K CHIP C 1000PF KC232 CS77AA1C2R2M CHIP TNTL 2.2UF 16WVC233 CC73GCH1H180J CHIP C 18PF J

C235 CC73GCH1H270J CHIP C 27PF JC236 ∗ C92-0868-05 CHIP TNTL 1UF 16WVC237-239 CK73GB1H102K CHIP C 1000PF KC240 CS77CA1A100M CHIP TNTL 10UF 10WVC241 CK73GB1H102K CHIP C 1000PF K

C242 CC73GCH1H100D CHIP C 10PF DC243 CK73GB1H102K CHIP C 1000PF KC244 CS77CA1A100M CHIP TNTL 10UF 10WVC245 CK73GB1H103K CHIP C 0.010UF KC246 CC73GCH1H271J CHIP C 270PF J

C247 CS77CA1C010M CHIP TNTL 1.0UF 16WVC248 CK73GB1H102K CHIP C 1000PF KC249 CC73GCH1H330J CHIP C 33PF JC250 CK73GB1H103K CHIP C 0.010UF KC251-253 CK73GB1H102K CHIP C 1000PF K

C254 CC73GCH1H101J CHIP C 100PF JC255,256 CK73GB1H102K CHIP C 1000PF KC257 CC73GCH1H221J CHIP C 220PF JC258,259 CK73GB1H103K CHIP C 0.010UF KC260,261 CC73GCH1H100D CHIP C 10PF D

C262 CK73GB1H103K CHIP C 0.010UF KC263 CC73GCH1H220J CHIP C 22PF J

C264 CC73GCH1H560J CHIP C 56PF JC265 CK73GB1C104K CHIP C 0.10UF KC266,267 CK73GB1E223K CHIP C 0.022UF K

C268 CS77CA1A100M CHIP TNTL 10UF 10WVC269,270 CK73GB1H103K CHIP C 0.010UF KC271 CK73GB1H471K CHIP C 470PF KC272 CC73GCH1H470J CHIP C 47PF JC274 CK73FB1E104K CHIP C 0.10UF K

C275 CK73GB1H102K CHIP C 1000PF KC277 CC73GCH1H560J CHIP C 56PF JC278-281 CK73GB1H102K CHIP C 1000PF KC282 CK73GB1H103K CHIP C 0.010UF KC283 CC73GCH1H271J CHIP C 270PF J

C284 CK73GB1H103K CHIP C 0.010UF KC285 CC73GCH1H330J CHIP C 33PF JC286 CC73GCH1H151J CHIP C 150PF JC287 CC73GCH1H101J CHIP C 100PF JC288 CK73GB1H102K CHIP C 1000PF K

C289 CC73GCH1H220J CHIP C 22PF JC290 CC73GCH1H100D CHIP C 10PF DC291 CK73GB1H102K CHIP C 1000PF KC292 CK73GB1H103K CHIP C 0.010UF KC293 CK73GB1H102K CHIP C 1000PF K

C294 CK73GB1H103K CHIP C 0.010UF KC295 CC73GCH1H221J CHIP C 220PF JC296,297 CC73GCH1H100D CHIP C 10PF DC298 CK73GB1H102K CHIP C 1000PF KC301 ∗ C92-0899-05 ELECTRO 330UF 25WV

C302,303 CK73GB1H102K CHIP C 1000PF KC304 CK73GB1H471K CHIP C 470PF KC305 CK73GB1H103K CHIP C 0.010UF KC306 CC73GCH1H0R5B CHIP C 0.5PF BC307 C93-0560-05 CHIP C 10PF D

C308 ∗ C92-0899-05 ELECTRO 330UF 25WVC309 CK73GB1H103K CHIP C 0.010UF KC310 CK73FB1E104K CHIP C 0.10UF KC311 CE32CL1C470M CHIP EL 47UF 16WVC312 C93-0566-05 CHIP C 33PF J

C313,314 CK73GB1H102K CHIP C 1000PF KC315 C93-0566-05 CHIP C 33PF JC316 C93-0562-05 CHIP C 15PF JC317 ∗ C92-0899-05 ELECTRO 330UF 25WVC318 CK73GB1H102K CHIP C 1000PF K

C319-322 CK73GB1H471K CHIP C 470PF KC323-328 CK73GB1H102K CHIP C 1000PF KC329 CK73GB1H103K CHIP C 0.010UF KC330,331 CK73GB1H102K CHIP C 1000PF KC332,333 CK73FB1E104K CHIP C 0.10UF K

C334 CS77AA1ER47M CHIP TNTL 0.47UF 25WVC335 CK73GB1H102K CHIP C 1000PF KC336 C93-0554-05 CHIP C 4.0PF CC337 C93-0553-05 CHIP C 3.0PF CC338 C93-0557-05 CHIP C 7.0PF D

C339 CK73GB1H102K CHIP C 1000PF KC340 CK73FB1E104K CHIP C 0.10UF KC341-344 CK73GB1H102K CHIP C 1000PF KC345 CS77AA1DR68M CHIP TNTL 0.68UF 20WVC346 CK73FB1E104K CHIP C 0.10UF K

C348-350 CK73GB1H102K CHIP C 1000PF K

Page 21: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3140-10) : K, K2, K3

21

TKR-740

C351 CS77AA1A4R7M CHIP TNTL 4.7UF 10WVC352 CK73GB1H102K CHIP C 1000PF KC353 C93-0603-05 CHIP C 1000PF KC354 CK73GB1H102K CHIP C 1000PF K

C355 CK73FB1E104K CHIP C 0.10UF KC357 CK73FB1E104K CHIP C 0.10UF KC358 CK73GB1H102K CHIP C 1000PF KC414 C93-0560-05 CHIP C 10PF DC421 CK73GB1C104K CHIP C 0.10UF K

C501,502 CK73GB1H471K CHIP C 470PF KC504 CK73GB1H471K CHIP C 470PF KC505 CK73GB1C104K CHIP C 0.10UF KC506 CK73GB1H471K CHIP C 470PF KC507 CC73GCH1H221J CHIP C 220PF J

C508 CK73GB1H471K CHIP C 470PF KC510 CK73GB1C104K CHIP C 0.10UF KC511,512 CK73GB1H471K CHIP C 470PF KC529 CK73GB1H471K CHIP C 470PF KC533 CK73GB1H471K CHIP C 470PF K

C584 CK73GB1H471K CHIP C 470PF KC586,587 CK73GB1H471K CHIP C 470PF KC588 CK73GB1C104K CHIP C 0.10UF KC589 CK73GB1H471K CHIP C 470PF KC591,592 CK73GB1H471K CHIP C 470PF K

C593 CK73GB1C104K CHIP C 0.10UF KC594,595 CK73GB1H103K CHIP C 0.010UF K

TC1 ,2 C05-0393-05 CERAMIC TRIMMER CAPACITOR(8PF)

CN1 E04-0409-15 RF COAXIAL RECEPTACLE(SMB)CN2 ∗ E40-6727-05 FLAT CABLE CONNECTORCN3 ∗ E40-6724-05 FLAT CABLE CONNECTORCN101,102 E04-0409-15 RF COAXIAL RECEPTACLE(SMB)CN103,104 E41-2735-05 PIN ASSY

CN301 E04-0408-15 RF COAXIAL RECEPTACLE(SMB)CN302 ∗ E40-6727-05 FLAT CABLE CONNECTORCN304,305 E41-2735-05 PIN ASSYCN306,307 E23-0902-05 TERMINALCN308 E04-0408-15 RF COAXIAL RECEPTACLE(SMB)

CN502 ∗ E41-2714-05 PIN ASSY

J402 J13-0071-05 FUSE HOLDER

CF1 L72-1029-05 CERAMIC FILTER

L1 ,2 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L4 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L5 L34-4601-05 AIR-CORE COILL6 L34-4600-05 AIR-CORE COILL7 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L11 L40-1085-92 SMALL FIXED INDUCTOR(100NH)L13 L40-1075-92 SMALL FIXED INDUCTOR(10NH)L14 L40-4775-92 SMALL FIXED INDUCTOR(47NH)L15 L41-1085-43 SMALL FIXED INDUCTOR(100NH)L101 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)

L102 L41-2285-33 SMALL FIXED INDUCTOR(0.22UH)L103-105 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L106 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L201 L41-4785-33 SMALL FIXED INDUCTOR(0.47UH)L202 L92-0179-05 CHIP FERRITE

L203 L41-1595-33 SMALL FIXED INDUCTOR(1.5UH)

L204 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L205,206 L41-4785-33 SMALL FIXED INDUCTOR(0.47UH)L207 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L208 L92-0179-05 CHIP FERRITE

L209,210 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L240,241 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L242,243 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L244 L40-6875-92 SMALL FIXED INDUCTOR(68NH)L246 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L247 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L248 L41-4785-33 SMALL FIXED INDUCTOR(0.47UH)L301-303 L34-4520-05 AIR-CORE COILL304 L79-0558-05 FILTERL305 L34-4523-05 AIR-CORE COIL

L306 L92-0179-05 CHIP FERRITEL501,502 L40-1075-92 SMALL FIXED INDUCTOR(10NH)L503 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

X101 ∗ L77-1735-25 TCXO(20MHZ)X201 L77-1748-05 CRYSTAL RESONATOR

XF210,211 L71-0529-05 MCF(20MHZ)

R1 ,2 RK73GB2A221J CHIP R 220 J 1/10WR3 ,4 RK73GB2A473J CHIP R 47K J 1/10WR5 ,6 RK73GB2A104J CHIP R 100K J 1/10WR7 RK73GB2A333J CHIP R 33K J 1/10WR8 RK73GB2A273J CHIP R 27K J 1/10W

R9 RK73GB2A101J CHIP R 100 J 1/10WR10 ,11 RK73GB2A000J CHIP R 0.0 J 1/10WR12 RK73GB2A101J CHIP R 100 J 1/10WR13 RK73GB2A471J CHIP R 470 J 1/10WR14 RK73GB2A103J CHIP R 10K J 1/10W

R15 RK73GB2A471J CHIP R 470 J 1/10WR16 RK73GB2A103J CHIP R 10K J 1/10WR17 RK73GB2A473J CHIP R 47K J 1/10WR18 RK73GB2A103J CHIP R 10K J 1/10WR19 RK73GB2A470J CHIP R 47 J 1/10W

R20 RK73GB2A103J CHIP R 10K J 1/10WR21 RK73GB2A471J CHIP R 470 J 1/10WR22 RK73GB2A103J CHIP R 10K J 1/10WR23 RK73GB2A183J CHIP R 18K J 1/10WR24 RK73GB2A101J CHIP R 100 J 1/10W

R25 RK73GB2A472J CHIP R 4.7K J 1/10WR26 RK73GB2A220J CHIP R 22 J 1/10WR27 RK73GB2A101J CHIP R 100 J 1/10WR28 RK73GB2A103J CHIP R 10K J 1/10WR29 RK73GB2A183J CHIP R 18K J 1/10W

R30 RK73GB2A103J CHIP R 10K J 1/10WR31 RK73GB2A101J CHIP R 100 J 1/10WR32 RK73GB2A221J CHIP R 220 J 1/10WR33 RK73GB2A103J CHIP R 10K J 1/10WR34 RK73GB2A222J CHIP R 2.2K J 1/10W

R35 RK73GB2A182J CHIP R 1.8K J 1/10WR36 RK73GB2A472J CHIP R 4.7K J 1/10WR37 RK73GB2A153J CHIP R 15K J 1/10WR38 RK73GB2A183J CHIP R 18K J 1/10WR39 RK73GB2A331J CHIP R 330 J 1/10W

R40 RK73GB2A101J CHIP R 100 J 1/10WR41 RK73GB2A152J CHIP R 1.5K J 1/10WR42 RK73GB2A470J CHIP R 47 J 1/10W

Page 22: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

22

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3140-10) : K, K2, K3

TKR-740

R43 RK73GB2A102J CHIP R 1.0K J 1/10WR44 RK73GB2A393J CHIP R 39K J 1/10W

R45 RK73GB2A000J CHIP R 0.0 J 1/10WR46 RK73PB2H100J CHIP R 10 J 1/2WR47 RK73GB2A000J CHIP R 0.0 J 1/10WR48 RK73GB2A103J CHIP R 10K J 1/10WR49 RK73GB2A123J CHIP R 12K J 1/10W

R50 RK73GB2A471J CHIP R 470 J 1/10WR51 ,52 RK73GB2A331J CHIP R 330 J 1/10WR54 RK73GB2A000J CHIP R 0.0 J 1/10WR55 ,56 RK73GB2A102J CHIP R 1.0K J 1/10WR57 RK73GB2A471J CHIP R 470 J 1/10W

R61 RK73GB2A471J CHIP R 470 J 1/10WR62 RK73GB2A104J CHIP R 100K J 1/10WR63 RK73GB2A101J CHIP R 100 J 1/10WR64 RK73GB2A471J CHIP R 470 J 1/10WR65 RK73GB2A474J CHIP R 470K J 1/10W

R67 RK73GB2A124J CHIP R 120K J 1/10WR68 RK73GB2A224J CHIP R 220K J 1/10WR69 ,70 RK73GB2A563J CHIP R 56K J 1/10WR71 RK73GB2A474J CHIP R 470K J 1/10WR72 RK73GB2A101J CHIP R 100 J 1/10W

R73 RK73GB2A104J CHIP R 100K J 1/10WR74 RK73GB2A221J CHIP R 220 J 1/10WR77 RK73GB2A471J CHIP R 470 J 1/10WR78 ,79 RK73GB2A331J CHIP R 330 J 1/10WR85 -87 RK73GB2A101J CHIP R 100 J 1/10W

R88 RK73GB2A183J CHIP R 18K J 1/10WR89 RK73GB2A222J CHIP R 2.2K J 1/10WR100 RK73GB2A103J CHIP R 10K J 1/10WR101 RK73GB2A105J CHIP R 1.0M J 1/10WR102 RK73GB2A473J CHIP R 47K J 1/10W

R105 RK73GB2A331J CHIP R 330 J 1/10WR106 RK73GB2A101J CHIP R 100 J 1/10WR107 RK73GB2A471J CHIP R 470 J 1/10WR108 RK73GB2A183J CHIP R 18K J 1/10WR109 RK73FB2B000J CHIP R 0.0 J 1/8W

R112 RK73GB2A183J CHIP R 18K J 1/10WR113 RK73GB2A121J CHIP R 120 J 1/10WR114 RK73GB2A000J CHIP R 0.0 J 1/10WR115 RK73GB2A101J CHIP R 100 J 1/10WR117 RK73GB2A101J CHIP R 100 J 1/10W

R118,119 RK73GB2A103J CHIP R 10K J 1/10WR120 RK73GB2A102J CHIP R 1.0K J 1/10WR121 RK73GB2A000J CHIP R 0.0 J 1/10WR122 RK73GB2A101J CHIP R 100 J 1/10WR123 RK73GB2A103J CHIP R 10K J 1/10W

R124 RK73GB2A000J CHIP R 0.0 J 1/10WR129 RK73GB2A102J CHIP R 1.0K J 1/10WR130 RK73GB2A331J CHIP R 330 J 1/10WR131 RK73GB2A102J CHIP R 1.0K J 1/10WR132 RK73GB2A124J CHIP R 120K J 1/10W

R133 RK73GB2A104J CHIP R 100K J 1/10WR134 RK73GB2A102J CHIP R 1.0K J 1/10WR137 RK73GB2A103J CHIP R 10K J 1/10WR138 RK73GB2A123J CHIP R 12K J 1/10WR139 RK73GB2A103J CHIP R 10K J 1/10W

R140 RK73GB2A393J CHIP R 39K J 1/10WR141 RK73GB2A102J CHIP R 1.0K J 1/10W

R142 RK73GB2A104J CHIP R 100K J 1/10WR143 RK73GB2A473J CHIP R 47K J 1/10WR144 RK73GB2A334J CHIP R 330K J 1/10W

R145,146 RK73GB2A101J CHIP R 100 J 1/10WR147 RK73GB2A102J CHIP R 1.0K J 1/10WR149 RK73GB2A103J CHIP R 10K J 1/10WR150 RK73GB2A472J CHIP R 4.7K J 1/10WR151 RK73GB2A682J CHIP R 6.8K J 1/10W

R180,181 RK73GB2A000J CHIP R 0.0 J 1/10WR182 RK73GB2A472J CHIP R 4.7K J 1/10WR183 RK73GB2A473J CHIP R 47K J 1/10WR184 RK73GB2A153J CHIP R 15K J 1/10WR185 RK73GB2A101J CHIP R 100 J 1/10W

R186 RK73GB2A472J CHIP R 4.7K J 1/10WR190-192 RK73GB2A000J CHIP R 0.0 J 1/10WR202 RK73GB2A000J CHIP R 0.0 J 1/10WR203,204 RK73GB2A273J CHIP R 27K J 1/10WR205 RK73GB2A473J CHIP R 47K J 1/10W

R206 RK73GB2A474J CHIP R 470K J 1/10WR208 RK73GB2A104J CHIP R 100K J 1/10WR209 RK73GB2A103J CHIP R 10K J 1/10WR210 RK73GB2A000J CHIP R 0.0 J 1/10WR211 RK73GB2A474J CHIP R 470K J 1/10W

R212 RK73GB2A471J CHIP R 470 J 1/10WR213 RK73GB2A101J CHIP R 100 J 1/10WR214 RK73GB2A821J CHIP R 820 J 1/10WR215 RK73GB2A124J CHIP R 120K J 1/10WR216 RK73GB2A104J CHIP R 100K J 1/10W

R217 RK73GB2A221J CHIP R 220 J 1/10WR218 RK73GB2A471J CHIP R 470 J 1/10WR219 RK73GB2A103J CHIP R 10K J 1/10WR220 RK73GB2A473J CHIP R 47K J 1/10WR221 RK73GB2A560J CHIP R 56 J 1/10W

R222 RK73GB2A103J CHIP R 10K J 1/10WR223 RK73GB2A153J CHIP R 15K J 1/10WR224 RK73GB2A223J CHIP R 22K J 1/10WR225 RK73GB2A103J CHIP R 10K J 1/10WR226 RK73GB2A124J CHIP R 120K J 1/10W

R227 RK73GB2A473J CHIP R 47K J 1/10WR228 RK73GB2A104J CHIP R 100K J 1/10WR240 RK73GB2A101J CHIP R 100 J 1/10WR241,242 RK73GB2A473J CHIP R 47K J 1/10WR243 RK73GB2A103J CHIP R 10K J 1/10W

R244 RK73GB2A392J CHIP R 3.9K J 1/10WR245 RK73GB2A101J CHIP R 100 J 1/10WR247 RK73GB2A101J CHIP R 100 J 1/10WR249 RK73GB2A473J CHIP R 47K J 1/10WR250 RK73GB2A221J CHIP R 220 J 1/10W

R251,252 RK73GB2A101J CHIP R 100 J 1/10WR253 RK73GB2A102J CHIP R 1.0K J 1/10WR254 RK73GB2A000J CHIP R 0.0 J 1/10WR257,258 ∗ RK73PB2H151J CHIP R 150 J 1/2WR259 RK73PB2H390J CHIP R 39 J 1/2W

R260 RK73GB2A183J CHIP R 18K J 1/10WR262 RK73GB2A101J CHIP R 100 J 1/10WR263 RK73GB2A473J CHIP R 47K J 1/10WR264-266 RK73GB2A273J CHIP R 27K J 1/10WR267 RK73GB2A103J CHIP R 10K J 1/10W

R268 RK73GB2A153J CHIP R 15K J 1/10W

Page 23: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3140-10) : K, K2, K3

23

TKR-740

R269 RK73GB2A102J CHIP R 1.0K J 1/10WR270,271 RK73PB2H221J CHIP R 220 J 1/2WR272 RK73GB2A103J CHIP R 10K J 1/10WR273 RK73GB2A473J CHIP R 47K J 1/10W

R274 RK73GB2A101J CHIP R 100 J 1/10WR275 RK73GB2A560J CHIP R 56 J 1/10WR300 RK73GB2A101J CHIP R 100 J 1/10WR301 RK73GB2A473J CHIP R 47K J 1/10WR303 RK73FB2B331J CHIP R 330 J 1/8W

R304 RK73FB2B820J CHIP R 82 J 1/8WR305 RK73FB2B331J CHIP R 330 J 1/8WR306 RK73GB2A103J CHIP R 10K J 1/10WR308 RK73GB2A102J CHIP R 1.0K J 1/10WR310 RK73PB2H221J CHIP R 220 J 1/2W

R311 RK73GB2A473J CHIP R 47K J 1/10WR312 RK73PB2H221J CHIP R 220 J 1/2WR313 RK73GB2A102J CHIP R 1.0K J 1/10WR314 RK73GB2A104J CHIP R 100K J 1/10WR315 RK73GB2A102J CHIP R 1.0K J 1/10W

R316,317 RK73GB2A473J CHIP R 47K J 1/10WR318 RK73GB2A472J CHIP R 4.7K J 1/10WR319 RK73GB2A683J CHIP R 68K J 1/10WR320 RK73GB2A474J CHIP R 470K J 1/10WR321 RK73GB2A472J CHIP R 4.7K J 1/10W

R322 RK73GB2A103J CHIP R 10K J 1/10WR323,324 RK73GB2A472J CHIP R 4.7K J 1/10WR325 RK73GB2A562J CHIP R 5.6K J 1/10WR326 RK73GB2A103J CHIP R 10K J 1/10WR327 RK73FB2B331J CHIP R 330 J 1/8W

R328 RK73FB2B271J CHIP R 270 J 1/8WR329 RK73GB2A103J CHIP R 10K J 1/10WR330 RK73GB2A123J CHIP R 12K J 1/10WR331 RK73GB2A223J CHIP R 22K J 1/10WR332 RK73GB2A823J CHIP R 82K J 1/10W

R333 RK73GB2A473J CHIP R 47K J 1/10WR334 RK73GB2A273J CHIP R 27K J 1/10WR335 RK73GB2A102J CHIP R 1.0K J 1/10WR337 RK73FB2B272J CHIP R 2.7K J 1/8WR338,339 RK73GB2A000J CHIP R 0.0 J 1/10W

R340 RK73GB2A102J CHIP R 1.0K J 1/10WR341 RK73GB2A103J CHIP R 10K J 1/10WR342 RK73GB2A472J CHIP R 4.7K J 1/10WR343 RK73FB2B102J CHIP R 1.0K J 1/8WR344 RK73GB2A472J CHIP R 4.7K J 1/10W

R345 RK73GB2A473J CHIP R 47K J 1/10WR346 RK73FB2B102J CHIP R 1.0K J 1/8WR347 RK73GB2A103J CHIP R 10K J 1/10WR348 RK73FB2B392J CHIP R 3.9K J 1/8WR349 RK73GB2A223J CHIP R 22K J 1/10W

R350 RK73GB2A473J CHIP R 47K J 1/10WR354,355 RK73GB2A473J CHIP R 47K J 1/10WR356 RK73GB2A104J CHIP R 100K J 1/10WR357 RK73GB2A102J CHIP R 1.0K J 1/10WR358 RK73FB2B331J CHIP R 330 J 1/8W

R359 RK73FB2B820J CHIP R 82 J 1/8WR360 RK73FB2B331J CHIP R 330 J 1/8WR400 RK73GB2A103J CHIP R 10K J 1/10WR403 RK73GB2A104J CHIP R 100K J 1/10WR410 RK73GB2A103J CHIP R 10K J 1/10W

R501-507 RK73GB2A101J CHIP R 100 J 1/10WR509 RK73GB2A102J CHIP R 1.0K J 1/10WR510-513 RK73GB2A000J CHIP R 0.0 J 1/10WR515-517 RK73GB2A000J CHIP R 0.0 J 1/10WR518 RK73GB2A101J CHIP R 100 J 1/10W

R580 RK73GB2A102J CHIP R 1.0K J 1/10WR581-585 RK73GB2A000J CHIP R 0.0 J 1/10WR587-589 RK73GB2A000J CHIP R 0.0 J 1/10WR590,591 RK73GB2A103J CHIP R 10K J 1/10WR592 RK73GB2A153J CHIP R 15K J 1/10W

R593 RK73GB2A103J CHIP R 10K J 1/10WR600 RK73GB2A000J CHIP R 0.0 J 1/10WR605 RK73GB2A000J CHIP R 0.0 J 1/10W

TS301 ∗ S79-0470-05 THERMAL SWITCH

D1 -6 1SV283F VARIABLE CAPACITANCE DIODED7 ∗ 1SV128-F DIODED11 ,12 1SS355 DIODED101 ∗ 1SV128-F DIODED103 ∗ 1SV128-F DIODE

D201-203 1SV283F VARIABLE CAPACITANCE DIODED204 1SS355 DIODED205 HSM88AS-E DIODED206 MINISMDC07502F VARISTORD303 ERZV14D220 SURGE ABSORBER

D304 1SS355 DIODED305 DSM3MA1-RPB DIODED306-308 HSM88AS-E DIODED310 MINISMDC07502F VARISTORD312 ∗ 02CZ12(X,Y)F ZENER DIODE

D317,318 1SS355 DIODED500 MINISMDE190F VARISTORD503 1SS355 DIODE

IC1 TA7808SQ BI-POLAR ICIC2 NJM78L08UA-ZB BI-POLAR ICIC3 M62364FP-F MOS-ICIC4 BU4094BCFV MOS-ICIC100 TA75S01F-F MOS-IC

IC102 TA75S01F-F MOS-ICIC103 NJM78L05UA-ZB BI-POLAR ICIC105 NJM4558E-ZB ANALOGUE ICIC106 AT24C08A10SU18 ROM ICIC107 NJM4558E-ZB ANALOGUE IC

IC108 NJM78L08UA-ZB BI-POLAR ICIC109 NJM2904E-ZB ANALOGUE ICIC110 NJM78L05UA-ZB BI-POLAR ICIC200 TC4S81F-F MOS-ICIC202 AD9835BRUZ MOS-IC

IC203 NJM2904E-ZB ANALOGUE ICIC204 ∗ NJM2903M-ZB MOS-ICIC205 NJM78L05UA-ZB BI-POLAR ICIC206 ∗ TC74HC14AF-F MOS-ICIC302,303 ∗ OP291GSZ BI-POLAR IC

IC304 ∗ TC4W66F-F MOS-ICIC305 LMC7101BIM5 MOS-ICIC501,502 LMX2352TMX/NP ANALOGUE ICIC601 RA07M1317M101 MOS-IC(POWER MODULE)

Q1 ,2 2SK508NV(K52) FETQ3 ,4 2SC3722K(S) TRANSISTOR

If a part reference number is listed in a shaded box, that part does not come with the PCB.

Page 24: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

24

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3102-70) : E

TKR-740

Q5 2SK1824-A FETQ6 2SC3120-F TRANSISTORQ7 2SC3722K(S) TRANSISTOR

Q8 ∗ IMH5A TRANSISTORQ9 2SC3120-F TRANSISTORQ11 2SB1386(R) TRANSISTORQ12 DTC114EUA DIGITAL TRANSISTORQ13 2SC3356-A TRANSISTOR

Q14 2SK2596-E FETQ15 ∗ 2SK302-F(Y) FETQ17 ,18 2SK1824-A FETQ21 UMC5 TRANSISTORQ102 2SC4215-F(Y) TRANSISTOR

Q106 2SC4215-F(Y) TRANSISTORQ107 2SC3120-F TRANSISTORQ108,109 2SC4215-F(Y) TRANSISTORQ110 UMC5 TRANSISTORQ112,113 2SK1824-A FET

Q114 DTA114EUA DIGITAL TRANSISTORQ115 2SC4215-F(Y) TRANSISTORQ201,202 2SC4215-F(Y) TRANSISTORQ203 2SK1824-A FETQ205 2SC4215-F(Y) TRANSISTOR

Q206 2SK1824-A FETQ207 DTC114EUA DIGITAL TRANSISTORQ208 2SK1824-A FETQ240-242 2SC4215-F(Y) TRANSISTORQ301 2SC4081(R) TRANSISTOR

Q302 ∗ IMH5A TRANSISTORQ304 ∗ IMH5A TRANSISTORQ305 DTC114EUA DIGITAL TRANSISTORQ306 2SB951A(Q) TRANSISTORQ307 FMW1 TRANSISTOR

Q308 UMC5 TRANSISTORQ309 2SB951A(Q) TRANSISTORQ310 FMW1 TRANSISTORQ312,313 DTC114EUA DIGITAL TRANSISTOR

TH301,302 157-503-53006 THERMISTOR

D50 ,51 B30-2130-05 LED(YG)D52 B30-2048-05 LED

C1 ,2 CK73GB1H102K CHIP C 1000PF KC3 ,4 CC73GCH1H471J CHIP C 470PF JC5 CC73FCH1H080B CHIP C 8.0PF BC6 CK73GB1H102K CHIP C 1000PF KC7 CC73FCH1H120G CHIP C 12PF G

C8 CC73FCH1H470J CHIP C 47PF JC9 CC73FCH1H120G CHIP C 12PF GC10 CC73FCH1H560J CHIP C 56PF JC11 CK73GB1H103K CHIP C 0.010UF KC12 CC73GCH1H010B CHIP C 1.0PF B

C13 CK73GB1H102K CHIP C 1000PF KC14 CC73GCH1H010B CHIP C 1.0PF BC15 ,16 CK73GB1H102K CHIP C 1000PF KC17 CC73FCH1H100B CHIP C 10PF BC19 -22 CK73GB1H102K CHIP C 1000PF K

C23 CC73FCH1H080B CHIP C 8.0PF B

C24 CK73GB1H103K CHIP C 0.010UF KC25 CC73FCH1H080B CHIP C 8.0PF BC26 CK73GB1H102K CHIP C 1000PF KC27 ,28 CC73GCH1H010B CHIP C 1.0PF B

C29 ∗ C92-0897-05 ELECTRO 470UF 16WVC30 CK73GB1H102K CHIP C 1000PF KC31 CK73GB1H103K CHIP C 0.010UF KC32 CS77AB21C220M CHIP TNTL 22UF 16WVC33 CK73GB1H102K CHIP C 1000PF K

C34 CK73GB1H103K CHIP C 0.010UF KC35 ,36 CC73GCH1H100D CHIP C 10PF DC37 CK73GB1H102K CHIP C 1000PF KC38 CC73GCH1H470J CHIP C 47PF JC39 CK73GB1H471K CHIP C 470PF K

C40 CS77AB21C220M CHIP TNTL 22UF 16WVC41 CK73FB1E104K CHIP C 0.10UF KC42 CK73GB1H103K CHIP C 0.010UF KC43 CK73GB1H471K CHIP C 470PF KC45 CS77AB21C220M CHIP TNTL 22UF 16WV

C46 CK73FB1E104K CHIP C 0.10UF KC47 CK73GB1H103K CHIP C 0.010UF KC50 CK73GB1H471K CHIP C 470PF KC51 CC73GCH1H101J CHIP C 100PF JC52 CK73GB1H102K CHIP C 1000PF K

C53 -55 CK73GB1H471K CHIP C 470PF KC56 CC73GCH1H471J CHIP C 470PF JC57 CS77AA0J100M CHIP TNTL 10UF 6.3WVC58 ,59 CK73GB1H102K CHIP C 1000PF KC60 CK73GB1H471K CHIP C 470PF K

C61 CK73GB1H102K CHIP C 1000PF KC62 ,63 CK73GB1H471K CHIP C 470PF KC64 ,65 CC73GCH1H101J CHIP C 100PF JC66 CK73GB1H102K CHIP C 1000PF KC68 CK73GB1H103K CHIP C 0.010UF K

C70 ∗ CS77AA1C4R7M CHIP TNTL 4.7UF 16WVC71 -73 CK73GB1H103K CHIP C 0.010UF KC74 -76 CC73GCH1H470J CHIP C 47PF JC77 CK73GB1H103K CHIP C 0.010UF KC78 CK73GB1H222K CHIP C 2200PF K

C79 CK73GB1H102K CHIP C 1000PF KC80 CS77AA1A100M CHIP TNTL 10UF 10WVC82 CC73GCH1H100D CHIP C 10PF DC100 CC73GCH1H070D CHIP C 7.0PF DC101 CK73GB1H103K CHIP C 0.010UF K

C102 CS77CA1VR22M CHIP TNTL 0.22UF 35WVC103,104 CK73GB1H103K CHIP C 0.010UF KC105 CK73GB1H102K CHIP C 1000PF KC106 CK73GB1H471K CHIP C 470PF KC107 CS77AB21A220M CHIP TNTL 22UF 10WV

C108,109 CK73GB1H102K CHIP C 1000PF KC110 CK73GB1H103K CHIP C 0.010UF KC111 CS77CA1C010M CHIP TNTL 1.0UF 16WVC112 CK73GB1H102K CHIP C 1000PF KC113 CC73GCH1H100D CHIP C 10PF D

C114-116 CK73GB1H103K CHIP C 0.010UF KC118,119 CC73GCH1H221J CHIP C 220PF JC123 CK73FB1E104K CHIP C 0.10UF KC124 ∗ CS77AB21A470M CHIP TNTL 47UF 10WVC125,126 CK73GB1H103K CHIP C 0.010UF K

TX UNIT (X56-3102-70) : E

TX UNIT (X56-3140-10) : K, K2, K3

Page 25: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3102-70) : E

25

TKR-740

C127 ∗ CS77AB21A470M CHIP TNTL 47UF 10WVC128 CK73FB1E104K CHIP C 0.10UF KC130 CK73GB1H103K CHIP C 0.010UF KC131 CS77AA1A100M CHIP TNTL 10UF 10WVC132 CK73GB1H102K CHIP C 1000PF K

C133 CS77AA1A100M CHIP TNTL 10UF 10WVC134 CK73GB1H102K CHIP C 1000PF KC135 CS77AA1A100M CHIP TNTL 10UF 10WVC136 CS77BA0J470M CHIP TNTL 47UF 6.3WVC138 CS77BA0J470M CHIP TNTL 47UF 6.3WV

C139 CS77CA1C010M CHIP TNTL 1.0UF 16WVC140 CK73GB1H103K CHIP C 0.010UF KC141 CK73GB1H102K CHIP C 1000PF KC143 CC73GCH1H040C CHIP C 4.0PF CC144 CK73GB1H102K CHIP C 1000PF K

C145 CK73GB1H103K CHIP C 0.010UF KC147 CK73FB1E104K CHIP C 0.10UF KC165,166 CC73GCH1H101J CHIP C 100PF JC167 CK73GB1H102K CHIP C 1000PF KC168 CS77AB21C220M CHIP TNTL 22UF 16WV

C169 CK73GB1H103K CHIP C 0.010UF KC170 CK73FB1E104K CHIP C 0.10UF KC171,172 CK73GB1H102K CHIP C 1000PF KC173 CK73GB1H103K CHIP C 0.010UF KC174 ∗ CS77AB21A470M CHIP TNTL 47UF 10WV

C175 CK73FB1E104K CHIP C 0.10UF KC186 CK73GB1C104K CHIP C 0.10UF KC187,188 CK73GB1H102K CHIP C 1000PF KC201 ∗ CS77AA0J150M CHIP TNTL 15UF 6.3WVC203 CK73GB1H103K CHIP C 0.010UF K

C206,207 CC73GCH1H271J CHIP C 270PF JC208 CS77AA1A100M CHIP TNTL 10UF 10WVC209 CS77AA1E010M CHIP TNTL 1.0UF 25WVC210 CC73GCH1H820J CHIP C 82PF JC211 CK73GB1H102K CHIP C 1000PF K

C212 CC73GCH1H151J CHIP C 150PF JC213 CK73GB1H103K CHIP C 0.010UF KC214 CC73GCH1H100D CHIP C 10PF DC215,216 CK73GB1H103K CHIP C 0.010UF KC218,219 CC73GCH1H101J CHIP C 100PF J

C220 CK73GB1H103K CHIP C 0.010UF KC221-224 CC73GCH1H271J CHIP C 270PF JC225 CK73GB1H102K CHIP C 1000PF KC228 ∗ C90-4136-05 ELECTRO 100UF 20WVC232 CS77AA1C2R2M CHIP TNTL 2.2UF 16WV

C233 CC73GCH1H180J CHIP C 18PF JC235 CC73GCH1H270J CHIP C 27PF JC236 ∗ C92-0868-05 CHIP TNTL 1UF 16WVC237-239 CK73GB1H102K CHIP C 1000PF KC240 CS77AA1A100M CHIP TNTL 10UF 10WV

C241 CK73GB1H102K CHIP C 1000PF KC242 CC73GCH1H100D CHIP C 10PF DC243 CK73GB1H102K CHIP C 1000PF KC244 CS77AA1A100M CHIP TNTL 10UF 10WVC245 CK73GB1H103K CHIP C 0.010UF K

C246 CC73GCH1H271J CHIP C 270PF JC247 CS77CA1C010M CHIP TNTL 1.0UF 16WVC248 CK73GB1H102K CHIP C 1000PF KC249 CC73GCH1H330J CHIP C 33PF JC250 CK73GB1H103K CHIP C 0.010UF K

C251-253 CK73GB1H102K CHIP C 1000PF KC254 CC73GCH1H101J CHIP C 100PF JC255,256 CK73GB1H102K CHIP C 1000PF KC257 CC73GCH1H221J CHIP C 220PF JC258,259 CK73GB1H103K CHIP C 0.010UF K

C260,261 CC73GCH1H100D CHIP C 10PF DC262 CK73GB1H103K CHIP C 0.010UF KC263 CC73GCH1H220J CHIP C 22PF JC264 CC73GCH1H560J CHIP C 56PF JC265 CK73GB1C104K CHIP C 0.10UF K

C266,267 CK73GB1E223K CHIP C 0.022UF KC268 CS77AA1A100M CHIP TNTL 10UF 10WVC269,270 CK73GB1H103K CHIP C 0.010UF KC271 CK73GB1H471K CHIP C 470PF KC272 CC73GCH1H470J CHIP C 47PF J

C274 CK73FB1E104K CHIP C 0.10UF KC275 CK73GB1H102K CHIP C 1000PF KC277 CC73GCH1H560J CHIP C 56PF JC278-281 CK73GB1H102K CHIP C 1000PF KC282 CK73GB1H103K CHIP C 0.010UF K

C283 CC73GCH1H271J CHIP C 270PF JC284 CK73GB1H103K CHIP C 0.010UF KC285 CC73GCH1H330J CHIP C 33PF JC286 CC73GCH1H151J CHIP C 150PF JC287 CC73GCH1H101J CHIP C 100PF J

C288 CK73GB1H102K CHIP C 1000PF KC289 CC73GCH1H220J CHIP C 22PF JC290 CC73GCH1H100D CHIP C 10PF DC291 CK73GB1H102K CHIP C 1000PF KC292 CK73GB1H103K CHIP C 0.010UF K

C293 CK73GB1H102K CHIP C 1000PF KC294 CK73GB1H103K CHIP C 0.010UF KC295 CC73GCH1H221J CHIP C 220PF JC296,297 CC73GCH1H100D CHIP C 10PF DC298 CK73GB1H102K CHIP C 1000PF K

C301 ∗ C92-0899-05 ELECTRO 330UF 25WVC302,303 CK73GB1H102K CHIP C 1000PF KC304 CK73GB1H471K CHIP C 470PF KC305 CK73GB1H103K CHIP C 0.010UF KC306 CC73GCH1H330J CHIP C 33PF J

C307 C93-0561-05 CHIP C 12PF JC310 CK73FB1E104K CHIP C 0.10UF KC311 ∗ CE32BD1E470M CHIP EL 47UF 25WVC312 C93-0567-05 CHIP C 39PF JC313 CK73GB1H102K CHIP C 1000PF K

C315 C93-0566-05 CHIP C 33PF JC316 C93-0561-05 CHIP C 12PF JC317 ∗ C92-0899-05 ELECTRO 330UF 25WVC319-322 CK73GB1H471K CHIP C 470PF KC324-328 CK73GB1H102K CHIP C 1000PF K

C329 CK73GB1H103K CHIP C 0.010UF KC330,331 CK73GB1H102K CHIP C 1000PF KC332,333 CK73FB1E104K CHIP C 0.10UF KC334 CS77CA1ER47M CHIP TNTL 0.47UF 25WVC335 CK73GB1H102K CHIP C 1000PF K

C336-338 C93-0550-05 CHIP C 1.0PF CC339 CK73GB1H102K CHIP C 1000PF KC340 CK73FB1E104K CHIP C 0.10UF KC341 CK73GB1H102K CHIP C 1000PF KC348,349 CK73GB1H102K CHIP C 1000PF K

Page 26: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

26

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3102-70) : E

TKR-740

C353 C93-0603-05 CHIP C 1000PF KC354 CK73GB1H102K CHIP C 1000PF KC410 C93-0552-05 CHIP C 2.0PF CC411 C93-0554-05 CHIP C 4.0PF CC412 C93-0556-05 CHIP C 6.0PF D

C413 C93-0553-05 CHIP C 3.0PF CC414 C93-0561-05 CHIP C 12PF JC420 C92-0873-05 ELECTRO 47UF 16WVC425 ∗ C90-4136-05 ELECTRO 100UF 20WVC430 CS77AA1A2R2M CHIP TNTL 2.2UF 10WV

C431,432 ∗ C92-0899-05 ELECTRO 330UF 25WVC501,502 CK73GB1H471K CHIP C 470PF KC504 CK73GB1H471K CHIP C 470PF KC505 CK73GB1C104K CHIP C 0.10UF KC506 CK73GB1H471K CHIP C 470PF K

C507 CC73GCH1H221J CHIP C 220PF JC508 CK73GB1H471K CHIP C 470PF KC510 CK73GB1C104K CHIP C 0.10UF KC511,512 CK73GB1H471K CHIP C 470PF KC529 CK73GB1H471K CHIP C 470PF K

C533 CK73GB1H471K CHIP C 470PF KC584 CK73GB1H471K CHIP C 470PF KC586,587 CK73GB1H471K CHIP C 470PF KC588 CK73GB1C104K CHIP C 0.10UF KC589 CK73GB1H471K CHIP C 470PF K

C591,592 CK73GB1H471K CHIP C 470PF KC593 CK73GB1C104K CHIP C 0.10UF KC594,595 CK73GB1H103K CHIP C 0.010UF K

TC1 ,2 C05-0393-05 CERAMIC TRIMMER CAPACITOR(8PF)

CN1 E04-0409-15 RF COAXIAL RECEPTACLE(SMB)CN2 ∗ E40-6727-05 FLAT CABLE CONNECTORCN3 ∗ E40-6724-05 FLAT CABLE CONNECTORCN101,102 E04-0409-15 RF COAXIAL RECEPTACLE(SMB)CN103,104 E41-2735-05 PIN ASSY

CN301 E04-0408-15 RF COAXIAL RECEPTACLE(SMB)CN302 ∗ E40-6727-05 FLAT CABLE CONNECTORCN304,305 E41-2735-05 PIN ASSYCN306,307 E23-0902-05 TERMINALCN308 E04-0408-15 RF COAXIAL RECEPTACLE(SMB)

CN502 ∗ E41-2714-05 PIN ASSY

J402 J13-0071-05 FUSE HOLDER

CF1 ∗ L72-1029-05 CERAMIC FILTER

L1 ,2 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L4 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L5 L34-4601-05 AIR-CORE COILL6 L34-4600-05 AIR-CORE COILL7 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L11 L40-1085-92 SMALL FIXED INDUCTOR(100NH)L13 L40-1075-92 SMALL FIXED INDUCTOR(10NH)L14 L40-4775-92 SMALL FIXED INDUCTOR(47NH)L15 L41-1085-43 SMALL FIXED INDUCTOR(100NH)L101 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)

L102 L41-2285-33 SMALL FIXED INDUCTOR(0.22UH)L103-105 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L106 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L201 L41-4785-33 SMALL FIXED INDUCTOR(0.47UH)L202 L92-0179-05 CHIP FERRITE

L203 L41-1595-33 SMALL FIXED INDUCTOR(1.5UH)L204 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L205,206 L41-4785-33 SMALL FIXED INDUCTOR(0.47UH)L207 L41-1095-33 SMALL FIXED INDUCTOR(1.0UH)L208 L92-0179-05 CHIP FERRITE

L209,210 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L240,241 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L242,243 L41-1005-33 SMALL FIXED INDUCTOR(10UH)L244 L40-6875-92 SMALL FIXED INDUCTOR(68NH)L246 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

L247 L41-1015-33 SMALL FIXED INDUCTOR(100UH)L248 L41-4785-33 SMALL FIXED INDUCTOR(0.47UH)L301-303 L34-4520-05 AIR-CORE COILL304 L79-0558-05 FILTERL305 L34-4523-05 AIR-CORE COIL

L306-308 L92-0179-05 CHIP FERRITEL501,502 L40-1075-92 SMALL FIXED INDUCTOR(10NH)L503 L41-1005-33 SMALL FIXED INDUCTOR(10UH)

X101 ∗ L77-1735-25 TCXO(20MHZ)X201 L77-1748-05 CRYSTAL RESONATOR

XF210,211 L71-0529-05 MCF(20MHZ)

R1 ,2 RK73GB2A221J CHIP R 220 J 1/10WR3 ,4 RK73GB2A473J CHIP R 47K J 1/10WR5 ,6 RK73GB2A104J CHIP R 100K J 1/10WR7 RK73GB2A333J CHIP R 33K J 1/10WR8 RK73GB2A273J CHIP R 27K J 1/10W

R9 RK73GB2A101J CHIP R 100 J 1/10WR10 ,11 RK73GB2A000J CHIP R 0.0 J 1/10WR12 RK73GB2A101J CHIP R 100 J 1/10WR13 RK73GB2A471J CHIP R 470 J 1/10WR14 RK73GB2A103J CHIP R 10K J 1/10W

R15 RK73GB2A471J CHIP R 470 J 1/10WR16 RK73GB2A103J CHIP R 10K J 1/10WR17 RK73GB2A473J CHIP R 47K J 1/10WR18 RK73GB2A103J CHIP R 10K J 1/10WR19 RK73GB2A470J CHIP R 47 J 1/10W

R20 RK73GB2A103J CHIP R 10K J 1/10WR21 RK73GB2A471J CHIP R 470 J 1/10WR22 RK73GB2A103J CHIP R 10K J 1/10WR23 RK73GB2A183J CHIP R 18K J 1/10WR24 RK73GB2A101J CHIP R 100 J 1/10W

R25 RK73GB2A472J CHIP R 4.7K J 1/10WR26 RK73GB2A220J CHIP R 22 J 1/10WR27 RK73GB2A101J CHIP R 100 J 1/10WR28 RK73GB2A103J CHIP R 10K J 1/10WR29 RK73GB2A183J CHIP R 18K J 1/10W

R30 RK73GB2A103J CHIP R 10K J 1/10WR31 RK73GB2A101J CHIP R 100 J 1/10WR32 RK73GB2A221J CHIP R 220 J 1/10WR33 RK73GB2A103J CHIP R 10K J 1/10WR34 RK73GB2A222J CHIP R 2.2K J 1/10W

R35 RK73GB2A182J CHIP R 1.8K J 1/10WR36 RK73GB2A472J CHIP R 4.7K J 1/10WR37 RK73GB2A153J CHIP R 15K J 1/10WR38 RK73GB2A183J CHIP R 18K J 1/10WR39 RK73GB2A331J CHIP R 330 J 1/10W

R40 RK73GB2A101J CHIP R 100 J 1/10WR41 RK73GB2A152J CHIP R 1.5K J 1/10W

Page 27: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3102-70) : E

27

TKR-740

R42 RK73GB2A470J CHIP R 47 J 1/10WR43 RK73GB2A102J CHIP R 1.0K J 1/10WR44 RK73GB2A393J CHIP R 39K J 1/10W

R45 RK73GB2A000J CHIP R 0.0 J 1/10WR46 RK73PB2H100J CHIP R 10 J 1/2WR47 RK73GB2A000J CHIP R 0.0 J 1/10WR48 RK73GB2A103J CHIP R 10K J 1/10WR49 RK73GB2A123J CHIP R 12K J 1/10W

R50 RK73GB2A471J CHIP R 470 J 1/10WR51 ,52 RK73GB2A331J CHIP R 330 J 1/10WR54 RK73GB2A000J CHIP R 0.0 J 1/10WR55 ,56 RK73GB2A102J CHIP R 1.0K J 1/10WR57 RK73GB2A471J CHIP R 470 J 1/10W

R61 RK73GB2A471J CHIP R 470 J 1/10WR62 RK73GB2A104J CHIP R 100K J 1/10WR63 RK73GB2A101J CHIP R 100 J 1/10WR64 RK73GB2A471J CHIP R 470 J 1/10WR65 RK73GB2A474J CHIP R 470K J 1/10W

R67 RK73GB2A124J CHIP R 120K J 1/10WR68 RK73GB2A224J CHIP R 220K J 1/10WR69 ,70 RK73GB2A563J CHIP R 56K J 1/10WR71 RK73GB2A474J CHIP R 470K J 1/10WR72 RK73GB2A101J CHIP R 100 J 1/10W

R73 RK73GB2A104J CHIP R 100K J 1/10WR74 RK73GB2A221J CHIP R 220 J 1/10WR77 RK73GB2A471J CHIP R 470 J 1/10WR78 ,79 RK73GB2A331J CHIP R 330 J 1/10WR85 -87 RK73GB2A101J CHIP R 100 J 1/10W

R88 RK73GB2A183J CHIP R 18K J 1/10WR89 RK73GB2A222J CHIP R 2.2K J 1/10WR100 RK73GB2A103J CHIP R 10K J 1/10WR101 RK73GB2A105J CHIP R 1.0M J 1/10WR102 RK73GB2A473J CHIP R 47K J 1/10W

R105 RK73GB2A331J CHIP R 330 J 1/10WR106 RK73GB2A101J CHIP R 100 J 1/10WR107 RK73GB2A471J CHIP R 470 J 1/10WR108 RK73GB2A183J CHIP R 18K J 1/10WR109 RK73FB2B000J CHIP R 0.0 J 1/8W

R112 RK73GB2A183J CHIP R 18K J 1/10WR113 RK73GB2A121J CHIP R 120 J 1/10WR114 RK73GB2A000J CHIP R 0.0 J 1/10WR115 RK73GB2A101J CHIP R 100 J 1/10WR117 RK73GB2A101J CHIP R 100 J 1/10W

R118,119 RK73GB2A103J CHIP R 10K J 1/10WR120 RK73GB2A102J CHIP R 1.0K J 1/10WR121 RK73GB2A000J CHIP R 0.0 J 1/10WR122 RK73GB2A101J CHIP R 100 J 1/10WR123 RK73GB2A103J CHIP R 10K J 1/10W

R124 RK73GB2A000J CHIP R 0.0 J 1/10WR129 RK73GB2A102J CHIP R 1.0K J 1/10WR130 RK73GB2A331J CHIP R 330 J 1/10WR131 RK73GB2A102J CHIP R 1.0K J 1/10WR132 RK73GB2A124J CHIP R 120K J 1/10W

R133 RK73GB2A104J CHIP R 100K J 1/10WR134 RK73GB2A102J CHIP R 1.0K J 1/10WR137 RK73GB2A103J CHIP R 10K J 1/10WR138 RK73GB2A123J CHIP R 12K J 1/10WR139 RK73GB2A103J CHIP R 10K J 1/10W

R140 RK73GB2A393J CHIP R 39K J 1/10W

R141 RK73GB2A102J CHIP R 1.0K J 1/10WR142 RK73GB2A104J CHIP R 100K J 1/10WR143 RK73GB2A473J CHIP R 47K J 1/10WR144 RK73GB2A334J CHIP R 330K J 1/10W

R145,146 RK73GB2A101J CHIP R 100 J 1/10WR147 RK73GB2A102J CHIP R 1.0K J 1/10WR149 RK73GB2A103J CHIP R 10K J 1/10WR150 RK73GB2A472J CHIP R 4.7K J 1/10WR151 RK73GB2A682J CHIP R 6.8K J 1/10W

R180,181 RK73GB2A000J CHIP R 0.0 J 1/10WR182 RK73GB2A472J CHIP R 4.7K J 1/10WR183 RK73GB2A473J CHIP R 47K J 1/10WR184 RK73GB2A153J CHIP R 15K J 1/10WR185 RK73GB2A101J CHIP R 100 J 1/10W

R186 RK73GB2A472J CHIP R 4.7K J 1/10WR190-192 RK73GB2A000J CHIP R 0.0 J 1/10WR202 RK73GB2A000J CHIP R 0.0 J 1/10WR203,204 RK73GB2A273J CHIP R 27K J 1/10WR205 RK73GB2A473J CHIP R 47K J 1/10W

R206 RK73GB2A474J CHIP R 470K J 1/10WR208 RK73GB2A104J CHIP R 100K J 1/10WR209 RK73GB2A103J CHIP R 10K J 1/10WR210 RK73GB2A000J CHIP R 0.0 J 1/10WR211 RK73GB2A474J CHIP R 470K J 1/10W

R212 RK73GB2A471J CHIP R 470 J 1/10WR213 RK73GB2A101J CHIP R 100 J 1/10WR214 RK73GB2A821J CHIP R 820 J 1/10WR215 RK73GB2A124J CHIP R 120K J 1/10WR216 RK73GB2A104J CHIP R 100K J 1/10W

R217,218 RK73GB2A471J CHIP R 470 J 1/10WR219 RK73GB2A103J CHIP R 10K J 1/10WR220 RK73GB2A473J CHIP R 47K J 1/10WR221 RK73GB2A560J CHIP R 56 J 1/10WR222 RK73GB2A103J CHIP R 10K J 1/10W

R223 RK73GB2A153J CHIP R 15K J 1/10WR224 RK73GB2A223J CHIP R 22K J 1/10WR225 RK73GB2A103J CHIP R 10K J 1/10WR226 RK73GB2A124J CHIP R 120K J 1/10WR227 RK73GB2A473J CHIP R 47K J 1/10W

R228 RK73GB2A104J CHIP R 100K J 1/10WR240 RK73GB2A101J CHIP R 100 J 1/10WR241,242 RK73GB2A473J CHIP R 47K J 1/10WR243 RK73GB2A103J CHIP R 10K J 1/10WR244 RK73GB2A392J CHIP R 3.9K J 1/10W

R245 RK73GB2A101J CHIP R 100 J 1/10WR247 RK73GB2A101J CHIP R 100 J 1/10WR249 RK73GB2A473J CHIP R 47K J 1/10WR250 RK73GB2A221J CHIP R 220 J 1/10WR251,252 RK73GB2A101J CHIP R 100 J 1/10W

R253 RK73GB2A102J CHIP R 1.0K J 1/10WR254 RK73GB2A000J CHIP R 0.0 J 1/10WR257,258 ∗ RK73PB2H151J CHIP R 150 J 1/2WR259 RK73PB2H390J CHIP R 39 J 1/2WR260 RK73GB2A183J CHIP R 18K J 1/10W

R262 RK73GB2A101J CHIP R 100 J 1/10WR263 RK73GB2A473J CHIP R 47K J 1/10WR264-266 RK73GB2A273J CHIP R 27K J 1/10WR267 RK73GB2A103J CHIP R 10K J 1/10WR268 RK73GB2A153J CHIP R 15K J 1/10W

Page 28: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

28

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3102-70) : E

TKR-740

R269 RK73GB2A102J CHIP R 1.0K J 1/10WR270,271 RK73PB2H220J CHIP R 22 J 1/2WR272 RK73GB2A103J CHIP R 10K J 1/10WR273 RK73GB2A473J CHIP R 47K J 1/10WR274 RK73GB2A101J CHIP R 100 J 1/10W

R275 RK73GB2A560J CHIP R 56 J 1/10WR300 RK73GB2A182J CHIP R 1.8K J 1/10WR301 RK73GB2A393J CHIP R 39K J 1/10WR303 RK73FB2B182J CHIP R 1.8K J 1/8WR304 RK73FB2B120J CHIP R 12 J 1/8W

R305 RK73FB2B182J CHIP R 1.8K J 1/8WR306 RK73GB2A103J CHIP R 10K J 1/10WR308 RK73GB2A102J CHIP R 1.0K J 1/10WR310 RK73PB2H220J CHIP R 22 J 1/2WR311 RK73GB2A473J CHIP R 47K J 1/10W

R312 RK73PB2H220J CHIP R 22 J 1/2WR313 RK73GB2A102J CHIP R 1.0K J 1/10WR314 RK73GB2A104J CHIP R 100K J 1/10WR315 RK73GB2A102J CHIP R 1.0K J 1/10WR316 RK73GB2A473J CHIP R 47K J 1/10W

R317 RK73GB2A393J CHIP R 39K J 1/10WR319,320 RK73GB2A124J CHIP R 120K J 1/10WR321,322 RK73GB2A103J CHIP R 10K J 1/10WR323 RK73GB2A102J CHIP R 1.0K J 1/10WR324 RK73GB2A152J CHIP R 1.5K J 1/10W

R325 RK73GB2A562J CHIP R 5.6K J 1/10WR326 RK73GB2A103J CHIP R 10K J 1/10WR327 RK73FB2B681J CHIP R 680 J 1/8WR328 RK73FB2B271J CHIP R 270 J 1/8WR329 RK73GB2A103J CHIP R 10K J 1/10W

R330 RK73GB2A123J CHIP R 12K J 1/10WR338,339 RK73GB2A000J CHIP R 0.0 J 1/10WR354 RK73GB2A103J CHIP R 10K J 1/10WR355 RK73GB2A473J CHIP R 47K J 1/10WR357 RK73GB2A102J CHIP R 1.0K J 1/10W

R358 RK73FB2B182J CHIP R 1.8K J 1/8WR359 RK73FB2B120J CHIP R 12 J 1/8WR360 RK73FB2B182J CHIP R 1.8K J 1/8WR367 RK73GB2A102J CHIP R 1.0K J 1/10WR403 RK73GB2A104J CHIP R 100K J 1/10W

R501-507 RK73GB2A101J CHIP R 100 J 1/10WR509 RK73GB2A102J CHIP R 1.0K J 1/10WR510-513 RK73GB2A000J CHIP R 0.0 J 1/10WR515-517 RK73GB2A000J CHIP R 0.0 J 1/10WR518 RK73GB2A101J CHIP R 100 J 1/10W

R580 RK73GB2A102J CHIP R 1.0K J 1/10WR581-585 RK73GB2A000J CHIP R 0.0 J 1/10WR587-589 RK73GB2A000J CHIP R 0.0 J 1/10WR590,591 RK73GB2A103J CHIP R 10K J 1/10WR592 RK73GB2A153J CHIP R 15K J 1/10W

R593 RK73GB2A103J CHIP R 10K J 1/10W

TS301 ∗ S79-0470-05 THERMAL SWITCH

D1 -6 1SV283F VARIABLE CAPACITANCE DIODED7 ∗ 1SV128-F DIODED11 ,12 1SS355 DIODED101 ∗ 1SV128-F DIODED103 ∗ 1SV128-F DIODE

D201-203 1SV283F VARIABLE CAPACITANCE DIODE

D204 1SS355 DIODED205 HSM88AS-E DIODED206 MINISMDC07502F VARISTORD303 ERZV14D220 SURGE ABSORBER

D304 1SS355 DIODED305 DSM3MA1-RPB DIODED306 HSM88AS-E DIODED308 HSM88AS-E DIODED310 MINISMDC07502F VARISTOR

D318 1SS355 DIODED320 02DZ5.6F-X,Y ZENER DIODED500 MINISMDE190F VARISTORD503 1SS355 DIODE

IC1 TA7808SQ BI-POLAR ICIC2 NJM78L08UA-ZB BI-POLAR ICIC3 M62364FP-F MOS-ICIC4 BU4094BCFV MOS-ICIC100 TA75S01F-F MOS-IC

IC102 TA75S01F-F MOS-ICIC103 NJM78L05UA-ZB BI-POLAR ICIC105 NJM4558E-ZB ANALOGUE ICIC106 AT24C08A10SU18 ROM ICIC107 NJM4558E-ZB ANALOGUE IC

IC108 NJM78L08UA-ZB BI-POLAR ICIC109 NJM2904E-ZB ANALOGUE ICIC110 NJM78L05UA-ZB BI-POLAR ICIC200 TC4S81F-F MOS-ICIC202 AD9835BRUZ MOS-IC

IC203 NJM2904E-ZB ANALOGUE ICIC204 ∗ NJM2903M-ZB MOS-ICIC205 NJM78L05UA-ZB BI-POLAR ICIC206 ∗ TC74HC14AF-F MOS-ICIC301 LMX2352TMX/NP ANALOGUE IC

IC302,303 ∗ OP291GSZ BI-POLAR ICIC304 LMX2352TMX/NP ANALOGUE ICIC305 LMC7101BIM5 MOS-ICIC601 RA30H1317M131 MOS-IC(POWER MODULE)

Q1 ,2 2SK508NV(K52) FETQ3 ,4 2SC3722K(S) TRANSISTORQ5 2SK1824-A FETQ6 2SC3120-F TRANSISTORQ7 2SC3722K(S) TRANSISTOR

Q8 ∗ IMH5A TRANSISTORQ9 2SC3120-F TRANSISTORQ11 2SB1386(R) TRANSISTORQ12 DTC114EUA DIGITAL TRANSISTORQ13 2SC3356-A TRANSISTOR

Q14 ∗ 2SK2596-E FETQ15 ∗ 2SK302-F(Y) FETQ17 ,18 2SK1824-A FETQ21 UMC5 TRANSISTORQ102 2SC4215-F(Y) TRANSISTOR

Q106 2SC4215-F(Y) TRANSISTORQ107 2SC3120-F TRANSISTORQ108,109 2SC4215-F(Y) TRANSISTORQ110 UMC5 TRANSISTORQ112,113 2SK1824-A FET

Q114 DTA114EUA DIGITAL TRANSISTORQ115 2SC4215-F(Y) TRANSISTOR

If a part reference number is listed in a shaded box, that part does not come with the PCB.

Page 29: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

PARTS LIST

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

TX UNIT (X56-3102-70) : E

29

TKR-740

Q201,202 2SC4215-F(Y) TRANSISTORQ203 2SK1824-A FETQ205 2SC4215-F(Y) TRANSISTOR

Q206 2SK1824-A FETQ207 DTC114EUA DIGITAL TRANSISTORQ208 2SK1824-A FETQ240-242 2SC4215-F(Y) TRANSISTORQ301 2SC4081(R) TRANSISTOR

Q302 ∗ IMH5A TRANSISTORQ304 ∗ IMH5A TRANSISTORQ308 UMC5 TRANSISTORQ309 DTC114EUA DIGITAL TRANSISTOR

TH301 ∗ 157-303-55006 THERMISTOR

Page 30: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

30

TKR-740

A B

1

2

3

EXPLODED VIEW (K, K2, K3 TYPE)

1

2

A49

50

3

40

5

X53 (D/4)

34

12

51

33

X53 (B/4)

18

X53 (C/4)

9

713

14

X55

H

711

4Dx2

Dx2

Dx2

Jx2

Jx2

Jx3

Gx2

Jx7

Nx10Jx12

Ex2

Fx2

J

47

714

17

10

X56 (A/3)

29

15X56 (B/3)

9

9

Jx7

38

35

32

37

18

18

36

39

H

X53 (A/4)

31

IC45

IC601

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.

Page 31: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

31

TKR-740EXPLODED VIEW (K, K2, K3 TYPE)C D

EXCITERFINAL

TX

CONTROL

RX

711

703

712

26

29

27

30

Nx10

Jx11

Cx3

Cx14

Cx10

Cx10

Cx11

Kx2

Cx3

J

13

715

708

710

708

704

705

706707

2219

161113

7

Bx2

X56 (C/3)

A :N08-0560-04B :N09-2292-05C :N32-3005-43D :N32-4008-43E :N35-3006-48

F :N67-2606-48G :N67-3006-48H :N67-3008-43J :N87-2606-48K :N87-2608-48

N :N87-2616-48

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.

Page 32: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

32

TKR-740

E F

1

2

3

EXPLODED VIEW (E TYPE)

1

2

A49

50

3

X53 (D/4)

34

12

51

33

X53 (B/4)

18

X53 (C/4)

9

713

14

X55

711

4Dx2

Dx2

Dx2

Jx2

Jx2

Jx3

Gx2

Jx6

Nx10Jx12

Ex2J

J

Ix2

47

714

17

10

X56 (A/3)

2915X56 (B/3)

9

9

Jx7

71735

37

18

18

36

Mx2

X53 (A/4)

28

IC601

25

46

L

L

24

23

24

532

38

39

4031

IC45

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.

Page 33: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

33

TKR-740EXPLODED VIEW (E TYPE)

G H

EXCITERFINAL

TX

CONTROL

RX

711

703

712

26

29

27

30

Nx10

Jx11

Cx3

Cx14

Cx10

Cx10

Cx11

Cx3

J

13

715

708

710

708

704

705

706707

22

191611

13

7

Bx2716

X56 (C/3)

Kx2

A :N08-0560-04B :N09-2292-05C :N32-3005-43D :N32-4008-43E :N35-3006-48

G :N67-3006-48I :N67-3008-48J :N87-2606-48K :N87-2608-48L :N87-2610-48

M :N87-2612-48N :N87-2616-48

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.

Page 34: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

34

TKR-740

I J

1

2

3

PACKING

2. FRONT GLASS(B10-2590-04)

48.HANDLE(K01-0421-05)

A. DRESSED SCREW(N08-0560-04)

22.FUSE (BLADE TYPE)(F06-4027-05):K, K2, K3 (4A)(F06-1032-05):E (10A)

43.PROTECTION BAG(H25-0029-04)

6. INSTRUCTION MANUAL(B62-1136-00):K, K2, K3(B62-1700-00):E

21.RECTANGULAR PLUG(E59-0404-05)

20.LEAD WIRE WITH CONNECTOR(E37-1381-05)

44.PROTECTION BAG(H25-0720-04)

8. DC CORD(E30-3344-25)

702

41.POLYSTYRENE FOAMED FIXTURE(H10-6612-02)

41.POLYSTYRENE FOAMED FIXTURE(H10-6612-02)

42.PROTECTION COVER(H20-1437-03)

45.ITEM CARTON CASE(H52-1966-02)

Parts with the exploded numbers larger than 700 are not supplied.

Page 35: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

35

TKR-740

Pin No. Port name I/O Function

1 HSDO O High speed data output

2 LSDO O Low speed data output

3 P92 I PLL select (H:New PLL, L:Old PLL)

4 IACK I DSP IDMA Acknowlege input

5 EPR O RX PLL data strobe output

6 BYTE I +5V

7 CNVss I GND

8 PAG O Digital pager signal output

9 LDR I RX PLL lock detect input

10 RESET I Microcomputer reset input

11 Xout - 14.745MHz (system clock)

12 Vss - GND

13 Xin - 14.745MHz (system clock)

14 Vcc - +5V

15 NMI - Not used

16 MDAT I Not used

17 TEST I Test switch input

18 MAIN I Main/Sub CPU select input (H:Sub,L:Main)

19 CK O Common data output

20 DT O Common clock output

21 MON I Monitor switch input

22 SC I Squelch control input

23 RPTT I Remote PTT input

24 AUXI2 I Auxiliary input 2

25 CHECK - Check port

26 PTT I PTT switch input

27,28 PC0,1 - Not used

29 TXD1 O Serial interface output 1 (ex. PC)

30 RXD1 I Serial interface input 1 (ex. PC)

31 SCL O Serial EEPROM clock output

32 SDA I/O Serial EEPROM data input/output

33 TXD O Serial interface output 0 (ex. PC)

34 RXD I Serial interface input 0 (ex. PC)

35 CP O PLL clock output

36 DP O PLL data output

37 RDY I CPU ready input

38 ALE - Not used

39 HOLD - Not used

SEMICONDUCTOR DATA

MAIN CPU : 30622M4-103GPU (CONTROL UNIT IC17)

Pin function

Pin No. Port name I/O Function

40 HLDA - Not used

41 BCLK O Sub CPU clock output

42 RD O Flash memory/Sub CPU RD bus

43 BHE - Not used

44 WR O Flash memory/Sub CPU WR bus

45 LDT I TX PLL lock detect input

46 SRST O Sub CPU reset output

47 CS1 O Sub CPU chip select

48 CS0 O Flash memory chip select

49 A19 O Not used

50~59 A18~9 O Flash memory address bus

60 Vcc - +5V

61 A8 O Flash memory address bus

62 Vss - GND

63~70 A7~0 O Flash memory/Sub CPU address bus

71 IWR O DSP IDMA write output

72 IRD O DSP IDMA read output

73 IAL O DSP IDMA address latch output

74 IS O DSP IDMA select output

75 PF3 O DSP RX mute control output

76 PF2 - Not used

77 PF1 O DSP modulation control output

78 PF0 - Not used

79~86 D7~0 I/O Flash memory/Sub CPU data bus

87 AN7 I Forward power voltage input

88 AN6 I Reverse power voltage input

89 AN5 I TX VCO voltage input

90 AN4 I RX VCO voltage input

91 AN3 I RSSI level input

92 AN2 I Power supply voltage input

93 AUXI1 I Auxiliary input 1

94 Avss - GND

95 AUXI3 I Auxiliary input 3

96 Vref I +5V

97 Avcc I GND

98 IRQ2 O DSP interrupt request output

99 PF6 O DSP Mic mute control output

100 PF5 O DSP TX/RX control output

Page 36: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

36

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

D GS

C20

R210R211

R212R217

IC32

R227

IC36

IC40

C

C207

C60

C210+

C68 +

+

+

+

+

+

+

+

+

+

C

C88

C91

R

R100

R104

R302

R303

RSSI

R304

R305

R306

R114RPTTI RPTTO

CHECKR121

R122

R123R124

L6

R128 W1

R321

R322

R323

R324

R325

R132

R326

R133

R327

R328

R329

1RRARTA

RPTTEXMON

GNDI/O1I/O2I/O3I/O4I/O5I/O6I/O7 12

R136R137

C101

C102

R141

R335

R142

12 AUXO6AUXO5AUXO4AUXO3AUXO2AUXO1TXGNC

NCNCNCNC

SCPTTMON

SPMRXG

RARDTATDDG

AUXI3

RXDNCNCNC

AUXI2AUXI1

TXD

30 29

R336

R143

R337

R144

R338

R339

C300

C301

C302

C303

1BFWDEXRCVTCVR

RDRSSISPOSPOSPI

GNDGNDSPGSPG 14

R340

C304

C305

R342

C306

C307

C308

C309

R153

R154

R155

R

C310

C311

C312

C313

R

R

R353

C317

R354

C318

R355

C125

R356

R357

C325

C132

C326

C327 C328

C329

R367

C137

R28 R29

C330C332

R757

C333

R370

C334

R371

C335

C336

C143

C337

C147 W1

J79-0034-19 A/4

R190

R191

R47

R194 R196

R197

R199

C160

C163

C185

C188

R78

C192

CN1

CN2

CP1 CP2

R200

R202R203

1100

2526 50

51

7576

R204

C19

R205R206

IC13

R207R208

R209

R21

3

R21

9

C32

C33

C34

R22

0

C35

C36

C37

C38 C39

R22

8

R22

9

C40

C41

C42

C43

C44

R23

0

C45

R23

1

C46

R23

2

R23

3R

234

C49

R23

5R

236

R23

8

C50

C51

C52

C53

C54

C55

R24

1

C57

R24

3

C58

R24

4R

246

R24

7

R24

8

R24

9

R25

1

C66

R25

2

R25

4R

256

R25

7

R26

3R

267

C87

R27

4

C89

1 458

1 458

1 458

5 814

R28

1

R28

4

R28

6

R28

7

R29

0R

293

R29

7R

298

R29

9

R10

3

R30

0R

301

L1

L7

R13

1

L11

L13

C10

0C

108

IC4

O

G

I O

G

I

IC6

R35

8R

359

C13

1

R36

2R

361

R36

0R

363

R36

4R

365

Q1

R36

6R

368

R36

9

C13

9

C33

1

R30

26PA

B B B BPA

GG

ND

FWD

REV

CV

TEX

RD

PN

C CP

PRT

LDT

SC

LS

DA

NC

NC

CK

DT

EST

EVT

MIG TO

MO

D1

R31R37

2

R32

C14

4

C14

9

R38

0

C15

0C

155

R45

26N

CN

CN

C

NC

NC

CV

RG

ND

EPR

LDR CP

DP

SD

AS

CL

EVR

ESR

DT

CK

RS

SI

SCB B B

R19

3

R48

R19

5

R49

R76

C18

9

C19

0

R80

CN

4C

N5

X1

CP3

CP4

CP5

CP6

CP7

C15

IC17

CN

6

TKR-740 PC BOARD

Ref. No. Address

IC3 10K

IC4 10E

IC5 10L

IC6 10F

IC12 10N

IC13 5D

IC17 7H

Ref. No. Address

IC24 8M

IC25 7M

IC27 6M

IC29 10P

IC30 7L

IC32 9D

IC36 8D

Ref. No. Address

IC37 8P

IC40 6D

IC45 3R

Q1 7F

Q5 9M

CONTROL UNIT (X53-4210-10) (A/4)

Component side view (J79-0034-19 A/4)

Page 37: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

37

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DGS

IC24

IC251

34

5

IC27

IC29

IC30

IC37

C202

C204C205

C210++

+

C211+

++

+

+ +

+ +C77

C227C228

C229

C83

R291

R295

R115

R116

R117

R118

1 SPISPGVLOVLIGNDBLTNCHOKPTTEXRSW1SW2BBSW3SW4TESTSW5SW6EN7MDATDTCKGNDMIMIG

RAO RAI

R134 R135

L12

CN707

RA

DETO

DETI

R344

R349

R350

R10

R351

C123

R171

Q5

R176

R181

R7

IC45

1 10

R46

C166

CHECK

R66R69

C180

TP5

TP4

TP1

+

+ + +

++

TP2

TP3

R70

C182

R86

CN1

R90 CODE4

CODE3

CODE2

CODE1

OPT

GND B

TXI

PTTI

TXO

ANI

PTTO

TESTO TESTI26

R91

R92

R93

X2

1100

2526

505175

76

IC12

C32

C33

C34

C35

C36

C37

C41

C42

C43

C44

C46

C49

C50

C20

0

C51

C20

1

C52

C59

C22

3

C22

4

C22

5

C76

C22

6

C78

C79

C23

1

C23

2

C1

R28

8

C4

C5

C7

C9

R10

1

L9L13

R14

9

R34

3

IC3

IO G IO GR

150

R15

1

R34

5

IC5

R15

2

R34

6

R34

7R

348 R

352

R16

0

C12

6

C12

8

C12

9

SD

AN

CN

CC

KD

TES

TEV

TM

IG TOM

OD

1

R1

C14

6

1 458 C

148

R8

C15

1

C15

2

CP

DP

SD

AS

CL

EVR

ESR

DT

CK

RS

SI

SC

DEG DET

RX

G RA

1

C15

6

C16

4

C16

5

C16

7

C16

8

1

189 16

1415 28

R71

C18

3

CN

3

C10

C11

C12

1

18

8

9

916

16

C13

R12

0

CONTROL UNIT (X53-4210-10) (A/4)

Component side view (J79-0034-19 A/4)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 38: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

38

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C21

C24

C27

C28

R214

C29

R215

IC22

R216

R218

C30

C31

R221R222

R223

IC31

R225

R226

IC34

IC38

1

1

3

3

4

4

5

5 C206

C208C209

C61

C213

1011

20

111

20

R250

C214

R262

R266

C2

C3

C6

R106

R110

C106

C107

IC1

R157

R159

R161

1

2526 50

51

7576100

R164

R165

R166

R168

C134

C135

R173

+

+

+

+

+

+

+

+

+

+

+

+

R27

R174

R177

R178

R182

R2

R3

R184

R38

R4

R185

R5

R186

R6

C154

C158

C161

C162

C169C170

C173

C174

C176 C178

C179

C184

C193

C14 +

C18

+ +

Q11

C8

C31

5

Q2

R9

IC18

R22

4

R23

9

IC15

IC16

R24

0

C56

R24

2R

245

R25

3R

255

R25

8

R25

9

C22

1

R26

0

R26

1R

264

R26

5R

268

R26

9

R27

0

R27

1

R27

2

R27

3

R27

5

R27

6

R27

7

R27

8

R27

9

R28

0R

282

R28

3R

285

R28

9R

292

R29

4

R29

6

R10

5

1 458

11

4

4

5

5

88

R10

7R

108

R10

9

CP1

0C

P11

CP1

4C

P15

L10

R15

6

R16

7

R16

9

R17

2R

175

R17

9

R18

0

R18

3

R39

R18

7

R18

8

R18

9

C15

7

C15

9

C17

1C

172

C17

5R

119

C10

5R94

R95

R96

IC35

R16

R36

R37

R40

L2L3

L4L5

R33

R34

1 345

TKR-740 PC BOARD

CONTROL UNIT (X53-4210-10) (A/4)

Foil side view (J79-0034-19 A/4)

Ref. No. Address

IC1 6C

IC7 7K

IC10 7M

IC14 5P

IC15 6J

IC16 7J

IC18 7H

Ref. No. Address

IC22 5E

IC31 7E

IC33 8P

IC34 9E

IC35 9J

IC38 5D

IC39 9R

Ref. No. Address

IC42 10P

IC46 7L

IC47 7L

IC48 7M

IC49 10Q

Q2 6C

Q8 10R

Ref. No. Address

Q9 10R

Q10 3R

Q11 5C

Q12 5S

Q13 4P

Q14 3P

Q15 3P

Ref. No. Address

Q16 4P

D1 5M

D3 9P

D4 10P

D5 7P

D6 8S

D7 7P

Ref. No. Address

D8 8S

D9 8S

D10 9S

D11 10S

D12 9S

D13 7Q

D14 6Q

Ref. No. Address

D15 10S

D16 9S

D17 10R

D18 6Q

D19 6Q

D20 10S

D21 6Q

Ref. No.

D22

D24

D25

D26

D27

D28

D30

Page 39: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

39

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 A/4

R237

+

IC46

IC47 IC48

+ +

IC49

C203C208C209

C212C213

1

1011

20

1

1011

20

Q10

Q12

D3

D6

D8

D9

D10

D11

D12

D13

D14

D15

D16

D18

D19

R307

D20

D21 D24

D25

1

89

16

D26

D27

D28

R125

D30

D31

R129

D34

D35

D37

D38

R130

D39

R138

R140

1

1

8 9

16

12 13

24

R145

R146

R147

R148

R158

C138+

+

+

+

+

+

C140

C153

C177

R72 R73 R74

+

+

+

C187

C194 +

IC10

I

G

O

IC14

1

3 4

5

1

3 4

5 1

3 4

5

1

3 4

5

IC15

IC16

C22

1

CP1

0C

P11

CP1

4C

P15

C22C23 C25C26

IC35

C22

2

C25

6

IC7

1 161732

R16

R35

R36

R37

R40

R41 R42

R43

R44

R19

2

C18

1

C18

6

C19

1D

1

L2L3

L4L5

R16

2

R33

R34

Q13

Q14

Q15

Q16

C80

189 16

C84

C86

C90

C96

R31

0R

311

R31

4R

315

R31

6R

317

R31

8R

331

C12

7

C13

0

IC39

D4

D5

D7

D17

D22

R12

6

R12

7

R13

9

R33

4

R34

1

C31

6

C31

9

C32

0

C32

1C

322

C32

3

C32

4C

133

C13

6

C14

1

C14

2C

145

IC33

Q8

Q9

IC42

1 345

CONTROL UNIT (X53-4210-10) (A/4)

Foil side view (J79-0034-19 A/4)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

dress

0S

9S

0R

Q

Q

0S

Q

Ref. No. Address

D22 10R

D24 6Q

D25 10P

D26 4S

D27 3S

D28 7Q

D30 9P

Ref. No. Address

D31 4S

D34 9P

D35 4S

D37 7Q

D38 8Q

D39 4S

Page 40: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

40

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 B/4

J79-0034-19 B/4

CN702CN703

C725

+

C738

D703

POWGRN

D704

TXRED

D705

BUSYGRN

IC703

Q707

Q708

R711

R70

7

R70

8

R71

5

26M

IGM

IG

ND

CK

DT

MD

ATEN

7S

W6

SW

5TE

ST

SW

4S

W3

B B SW

2S

W1

EXR

PTT

HO

K8C B

LTG

ND

VLI

VLO

SPG

SPI

1

C71

0

R75

6

1 2

C74

2

O G I19

10

D702

EX REFRED

INT REFGRN

IC70

6

Q70

6

Q70

9

Q71

0

R70

6

R70

9

R71

0

C71

7

C71

9

C72

1

C72

3

TKR-740 PC BOARD

CONTROL UNIT (X53-4210-10) (B/4)

Component side view (J79-0034-19 B/4)

CONTROL UNIT (X53-4210-10) (B/4)

Foil side view (J79-0034-19 B/4)

Ref. No. Address

IC704 10N

IC705 11N

Q700 11P

Q701 11P

Ref. No. Address

Q706 9C

Q707 9D

Q708 9C

Q709 9D

Ref. No. Address

Q710 9C

D706 11R

D707 11O

D708 11R

Ref. No. Address

D709 11O

D711 11R

D712 10R

Ref. No. Address

IC23 3O

IC703 4J

IC706 3J

D702 5C

Ref. No. Address

D703 5H

D704 5F

D705 5D

D710 4M

Page 41: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

41

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C724

12 SW6SW5SW4SW3SW2SW1B5A25B2EN7CKDSGNDNCNC

NCNC

5C2MDAT

HOKMICMIGPTT

GNDB

BLTGND

VLIVLONC30 29

C725

+

C738

D710

1

45

8

+

IC703

R712+

+

+

+

R713

R721

D706

D708

D711

D712

IC23

R71

4

CN

706

R72

5R

726

R72

7

R72

8R72

9R

730

C71

0

C71

3

S70

6

C73

1

C73

2

C73

4

C73

5

C74

2

O G I1

18

IC70

6

Q70

0Q

701

R71

7R

723

R72

4

R73

4

C70

8

C70

9

C71

1C

712

C72

7C

728

C72

9C

730

C73

3

C74

0

C74

1

D70

7D

709

IC70

4OGI

OGI

IC70

5

CONTROL UNIT (X53-4210-10) (B/4)

Component side view (J79-0034-19 B/4)

CONTROL UNIT (X53-4210-10) (B/4)

Foil side view (J79-0034-19 B/4)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 42: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

42

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 C/4

J79-0034-19 C/4

J700

17

28

R716

R718

C714

C716 +

VR700

14 NCNC5C2

HOKMICMIGPTT

GND

GND

VLIVLO

BBLT

MDAT

1

C750R71

9

CN

705 R73

3

C71

5

C71

8

VR

701

R72

0

R72

2R73

1

R73

2

C72

0

C72

2

C73

6

C73

7

TKR-740 PC BOARD

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

CONTROL UNIT (X53-4210-10) (C/4)

Component side view (J79-0034-19 C/4)

CONTROL UNIT (X53-4210-10) (C/4)

Foil side view (J79-0034-19 C/4)

Page 43: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

43

A B C D E F G H I J

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 D/4

J79-0034-19 D/4

C70615A2

5B2

EN7

CK

DS

GND 6

C707

D700 D701

CN

700

CN

701

S700

S701

S702

S703

S704

S705

7 SW6

SW5

SW4

SW3

SW2

SW1

B1R

700

R701

R702

R703

R704

R705

C700

C701

C702

C703

C704

C705

C739

1091

18 1091

18

IC700

IC701 IC702

CP700 CP701 CP702 CP70318

109

1

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

CONTROL UNIT (X53-4210-10) (D/4)

Component side view (J79-0034-19 D/4)

CONTROL UNIT (X53-4210-10) (D/4)

Foil side view (J79-0034-19 D/4)

Ref. No. Address

D700 5C

D701 5D

Ref. No. Address

IC700 11E

IC701 11C

IC702 11D

Page 44: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

44

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

S

BCE

BCE

GI

O

G IO

CE BCE B

C37

C201

C203

C56+

+

C207

C59

C65

Q18

Q19

C71

C75

C226

C79

A1

Q26

Q28

Q29

Q34

C7

D9

XF1

XF2

XF3

XF4

NARROW

WIDE

R103

R107

D11

R109

R111R114

R115

R118

R121

L363L364

L5

R126

R135

L12

R140

C106

C107

R144

C108

IC3

IC5

+

+

+

+

+

R154

IC9

R156

CF2

L33

C313

CF4

R10

CF5

C316

C123C124 +

+

+

+

+

+

R162

R163

C127

C129

R20

R170

L49

C329

R25

R172

C138

L53

C142

C143

R35

R182

R36

R2

C149

R186

12

R6

R7

R9

C150

R42

R192

C156

R193

C163

R55

C167

89

116

C172

C174

1213

124

C176C178

C179

R69

R73

R74

R78

C189

R81

R84

R85

CN2CN3

CN5

CN6

CN7REF IN

X1

CP1

C10 +

++

C12

C13

8 9

1 16

C16

IC15

IC16

Q22

R106

R108

R119

C122

189 16

121324

1

1 458

1

12

458

C140

C145

R43

C184

C204

Q20

R132

L20

R149

R152

R158

R22

R23

C135

C137

C155

C180 C1

85

R76

C187

C191

C193

C196

IC7

C171

Q16

IC6

R155

L30

L44

L41

L40

L43L5

2

C144

C152

C161

C183C1

92

C198

CN4

X2

C39

L19

L21

L23

L27

12

L28

L31

L32

L38

L39

R37

R71

C20

IC20 C2

9

C35

C48

C67

C229

L11

R11

R16

C321

C327

Q1

Q5

R30

L55

R32

C346

R388

R195

R389

R199

C11

C208C2

09

C210

R116 C1

01R12

R381

R382

R383

R384

R385

R386

C385

C387

C388

C389

C14

IC13

1RA RX

GDE

TDE

GSC RS

SICK DT ES

REV

RSC

LSD

ADP CP EP

RLD

RG

ND

CVR

NC

NC

B B B NC

NC

NC

26C2

3C1

C8R1

8

R19

Q3

Q6

TKR-740 PC BOARDRX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Component side view (J79-0036-09)

Ref. No. Address

IC2 3K

IC3 4C

IC4 3P

IC5 6B

Ref. No. Address

IC6 7B

IC7 8D

IC9 5C

IC13 4G

Ref. No. Address

IC14 3M

IC15 9B

IC16 4E

IC20 7G

Ref. No. Address

Q1 8I

Q3 7J

Q5 8I

Q6 6J

Ref. No. Address

Q8 7L

Q9 7K

Q10 7M

Q12 7L

Ref. No. Address

Q13 7N

Q14 8K

Q16 6E

Q17 4P

Ref. No. Address

Q18 5E

Q19 5E

Q20 6D

Q22 5D

Ref. No.

Q26

Q28

Q29

Q34

Page 45: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

45

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

GO I

DG

S

DG

S

I G O

J79-0036-09

C21

C25

C26

C32

C33

+

+

C43

C44

C221 C222

C46

C50

C57C58

C217

Q14

Q17

C74

C96

C4

TC1

C6

TC2

C7

D2

D4

D9

TH1

R120

L1

L5

L14

L16

IC4

R10

R27

R28

Q8Q9

R31

R34

+

R35

R36

R2

R5

R6

R9 R41R44

R45

R53

R54

R55

R58

R80

R82

CN1RX IN

CN2

R97 CV1

4 5

1 8

C10 +

+

C12

C15

L9

R37

R30

C346

R388

C11

C101R12

NC

NC

B B B NC

NC

NC

26C2

3

C41

C45

C47

C66

Q12

C78

C1C8

D6TH

2L4

L7

L10

L17

C105

L22

C110 IC

2

C115

R18

R19

Q3

Q6

R33

R39

R8

R48 R4

9

R56

R57

R61

R64

C27

C34

C40

C49

Q10

Q13

C218

D3

L2

L6

L8

L15

R24

R26

L56

C17

C73

C77

C82

C88

C90

R46

R62

IC14

C5

L3

RX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Component side view (J79-0036-09)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2

dress

5E

5E

D

D

Ref. No. Address

Q26 2B

Q28 4B

Q29 3C

Q34 7C

Ref. No. Address

D2 5L

D3 5M

D4 5K

D6 5K

Ref. No. Address

D9 3J

D11 3C

Page 46: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

46

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

DG

J79-0036-09

IC19

C24

C36

C38

C404

C

C84 +

Q30

C86

C87

C3

D12

L13

L26

C126

R21

C133

C134+

Q7BCE

R179

R180

L5

L64

L65

R70

IC3021 5

3 4

C18C19

IC17OGIC3

1

R38

L66

C30

C403

C70 C8

0

C97

C2

R302

R 303

L25

C333

R1

78

114

R380

R387

1213

R390

R391

R392

R393

R65

TKR-740 PC BOARDRX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Foil side view (J79-0036-09)

Component side

Foil side

Layer 1Layer 2

Ref. No. Address

IC8 11Q

IC10 2K

IC11 7P

IC12 9R

Ref. No. Address

IC17 11D

IC18 8Q

IC19 3I

IC21 10R

Ref. No. Address

IC301 6K

IC302 5J

Q7 10E

Q24 11N

Ref. No. Address

Q25 9M

Q30 3J

Q31 11P

Q32 10P

Ref. No. Address

Q33 6M

Q35 9Q

Q36 6R

Q37 6R

Ref. No. Address

Q38 6R

Q39 7L

D10 11L

D12 5J

Page 47: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

47

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

DG

DG

S

IC21

C200

C53

C54

C404

C211

C62

C212

C213 +

+

C220

C72

C76

C228

Q24

Q30

Q31C86

C87

Q33

Q35

C92

C93

C94

C95

C98

R105

D10

D12

R122R124

R125

R129

R130

R131

R133

R136

C100

C104

R141

R143

R146

R147

R148

C111

L26

C112

C306

R150

R151

C117

IC8

R157

R159

CF3

C121

R13

R14

R161

C125

C128

R165

R166

R167

R168

R169

C130

L45

C131

L46

C132

C136

R175 R176

R177

C141

L58

C147

R3

C148

R188

R189

C151

R191

C157

C158

C159

R196

C160

R50

R51

C162

R52

R394

C169+

+

+

+

+

C170

C173

R63

C175

R66

R67

R68

R70

C181

R75

R77

R79

IC301

IC3021 5

3 4

C391

R92

R95

R96

R98

R99

IC10

IC11

IC12

C30

C55

C402

C403

C219

Q25

B C E

B

CE

C80

C83

C85

C89

Q39

C91

R302

R303

R304

L18

C109

L25

C113

L35

L36

C333

R181

R380

R190

R387

1213

124

R197 R1

98

R390

R391

R392

R393

R60

R72

C384

R90

IC181 3

5 4

4

5

3

1

Q32

B C E

B

CE

C9

R100

R101

R102

R104

R123

R127

R128

R134

R137

R138

R139

R142

R145

L24

C114

C116

C118

C119

L34

C120

L37

R15

R164

45

18

45

18

L42

L47

L48

R171

C139

L51

L54

R184

R185

R187

C153

C154

C164

C165

1312

241

C166 C1

68

C188

C195

C199

R93

C202

45

18

CF1

R4

C60 C6

1

Q36

Q37

Q38

R153

R160

R173

R174

C146

R47

C177

C182

C186

C190

R83

C194

C197

R178

RX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Foil side view (J79-0036-09)

PC BOARD TKR-740

Page 48: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

48

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

S

S

GD

DG

S

S

GD

C23

R210

C26

R600

C33

C34

C35

R222

C41

C47

C52

C233

R270

R271

C236

C3

C4

C5

TC1TC2 C258

D1D2 D3D4

D6

D206

L102

L501

L502

R113

R505R506R507

L1L2 R123

L4L7

R517

R518

R134

C102

C104

C107

R149

C111

IC3IC4

C506C507

R18

R20

C132

R22R23

R24

R25

Q1Q2

Q3

Q4

Q5

Q7

C143

C144

R1

R182

R2

R183

R5

R6 R7R8

R48R49

Q208

IC100

IC501

L244

+

CN1DRV OUT

DVcc

FB

GND 1

2

FB

GND 1

2

4 5

1 8

8T

+

+

MAINVCO

MOD

+

34

15

89

116

1213

124

TO

MAINPLL

+

+

+

+

CV

MAIN PLL

45

18

CN

12A

UX 8T

GN

DR

PT PCR

EV

1213

124

MIC

MO

DTO M

IGEV

TES

TD

TC

KN

CN

CS

DA

1

J79-0169-09 A/3

C29

C31

C32

R22

3

C45

C27

1C

272

IC20

3

CN

103

CN

104

C10

9R

150

R26

R18

4R

186

C16

7

L202

L208

C18

6

C20

C25

C27 C28

C30

C70

Q21

C1C2

C7

C8

C9

D5

L5L6

L11

R13

R14

R15

R16

R17

R19 R

21

R27Q

6

R3

R4

R47

R54

C16

5

C16

6IC10

6

C10

C12

C14

C17

C21

C61

C23

5

C23

9

Q10

7R

101

R10

5R

114

R11

7

R11

8R

119

R12

2

R12

4 R51

5

R51

6

C11

2

C11

3

C11

8

C11

9C

501

C50

2

C51

0

C51

1

R58

8

IC10

9

1 235

IC1 G

IO

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Component side view (J79-0169-09 A/3)

Ref. No. Address

IC1 3F

IC3 9H

IC4 9G

IC100 10H

IC103 5Q

IC106 9E

IC109 5J

Ref. No. Address

IC200 4L

IC202 6L

IC203 4J

IC305 4K

IC501 7J

IC502 7M

Q1 6H

Ref. No. Address

Q2 6F

Q3 7H

Q4 8F

Q5 8G

Q6 7G

Q7 4I

Q17 4L

Ref. No. Address

Q18 4L

Q21 6D

Q107 7I

Q201 6N

Q208 4I

Q241 7L

D1 5H

Ref. No. Address

D2 5F

D3 5H

D4 5F

D5 7H

D6 7F

D50 4L

D51 4L

Ref. No. Address

D52 4L

D201 5N

D202 5N

D203 6N

D206 5B

D503 4L

Page 49: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

49

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

SGD SGD

XF211

R222

R228

C201R240

C208

R245

C209

R247

R249

C212

R250R254

C220

C221

C222

C74

C75

C76

C233

C240

C245

C246

C248

C250

C251

C252

C253

C256

D201

D202

D203

C282

IC202

C283

L501

L502

C288

C293

R517

R130

R131

R134

C115

506507

C127

C128

C143

R180

R181

R191

R590R591

R592

R64

D503

L204 L209

IC305

IC501

IC502

Q241

C591C592

C594

L240

L241

L244

L247

R204

R205

45

18

CN2

12A

UX 8T

GN

DR

PT PCR

EVFW

DH

/L B B BPA

B1

34

15

34

15

D50

MA

IN

D51

SU

B

D52

TX

+

+

89

116

DDS

124

CVMIC

CN3

MO

DTO M

IGEV

TES

TD

TC

KN

CN

CS

DA

SC

LLD

TR

PTC

PN

CD

PEX

RC

VT

REV

FWD

GN

DPA

GB B B PA

B261

CP

DP

EN

1213

124

LE

CK

DA

+

+

+

SUB PLL

CV

SUB PLL

EXT REF

CN102REF OUT

+

O G I

CN101EXT REF IN

R22

3IC20

3

R18

6

R21

4

R24

4

C21

4

R25

2

C73

C23

5

R27

2

C23

9

C24

4

C28

6

C29

2

R50

2

R50

3

R50

4

R51

5

R51

6

C50

1C

502

C51

0

C51

1

R19

0R

192

R58

8

IC10

9

C58

4

L242

L248

R20

2R

203

R20

9

Q17

Q18

IC20

0

C28

4

R55

R56

R57

R59

3

C59

5

R21

3

XF2

10

R22

4R

225

R22

7

C20

3

C21

0

C21

1

X20

1

C21

5C

218

C21

9

L105

L106

C28

5

X10

1

C11

4

C12

6

Q20

1

L203

L205

IC10

3

CF1

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Component side view (J79-0169-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 50: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

50

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

SGD

S

GD

S

GD

R211

R215

R217 R218

R221

R241

C213

R251

C216

R253Q15

C71

R260R265

R269

C82

C232

R275

C242

C247

C249

C254

C259

Q10

2

C260

Q109

C264

C265

D205

Q110

Q113

Q114

L104

C277

C278

C280

C287

C290

C291

C296

C297

C298

R102

R106

R108 R112

R501

R121R510

R129

R511

C101

C106

R145

C504

C124

C125

C529

C147

R185

R580

R51

D101

R587

Q205

Q206

Q207

R62

L201

L206

L207

R73

IC107

R79

IC110

R88

Q242

L243

R208

+

O G I

23

15

4 5

1 8

+

+

+

G OI

+

+

45

18

78

114

G

O

IG OI

+

R21

2

R21

6

R22

0

C40

C42

C46

R24

2

C20

6

R24

3

C20

7

C66

C72

C22

3

C22

4

C22

5

R26

2

C77

R26

3

R26

4R

266

R26

7

R26

8

R27

3

C23

7

R27

4

C24

1 C24

3

C25

5

C25

7

Q10

8

C26

1

C26

2

C26

3

D20

4

C26

6

C26

7

C26

8

C26

9

Q11

2

Q11

5

L101

C27

0

C27

4

C27

5

C27

9

C28

1

IC20

4

IC20

5

IC20

6

L503

C28

9

C29

4

C29

5

R10

0

R10

7

R11

5

R12

0

R13

7

C10

0

C10

3

R14

2

R14

3R

146

C11

0

IC2

C11

6

C12

3

C13

0

C14

0C

141

C14

5

C53

3

R58

1R

582

R58

3R

584

R50

R58

5

R52

D10

3

R58

9

Q20

2

C16

8

C16

9

C17

0

R61

R63

C17

5

R72

R74

C18

7

R77

C18

8

R78

L210

IC10

8

R86

R87

R89

C58

6

C58

7C

588

C58

9 Q24

0

C59

3

L246

R20

6

Q10

6

L103

C51

2

C13

4C

173 C17

4

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Foil side view (J79-0169-09 A/3)

Ref. No. Address

IC2 3H

IC102 9N

IC105 9L

IC107 7H

IC108 3E

IC110 9J

IC204 8D

Ref. No. Address

IC205 4G

IC206 9H

Q8 9Q

Q9 8P

Q11 7P

Q12 7P

Q13 7Q

Ref. No. Address

Q14 6Q

Q15 7C

Q102 9B

Q106 9B

Q108 9C

Q109 8B

Q110 6C

Ref. No. Address

Q112 6C

Q113 6B

Q114 6B

Q115 9E

Q202 7F

Q203 8Q

Q205 8B

Ref. No. Address

Q206 7D

Q207 6H

Q240 5I

Q242 7I

D7 8P

D11 8Q

D12 8Q

Ref. No. Address

D101 7B

D103 7C

D204 6G

D205 8C

Page 51: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

51

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

GD

C22

C24

R219

C36

C37C38

C39 C43

C58

C62

Q11

Q12

C68

Q14

R257

R258

C79

C80

C6

D11

R109

R509

R510

R511 R512

R138R139

L13

L14

R141

C108

R147

C504 C505

R10R11

R12

C131

C133

C136

C138

R28 R29

Q9

R30

R31

R32

R34

R35

R36

R37

R38

R9

R41

R43R44

R46

Q203

C171

C172

R69

IC110

C13

C16C19

G

O

I

45

18

+

+

+

+

+

+ +

+

+

34

15

B

C

E

D

S

G

34

16

J79-0169-09 A/3

R22

6

C50

C51

C53

C54

C56

C59

C60

C63

C64

C65

R25

9

C78

C23

8D7

D12

R51

3

R13

2 R13

3

L15

R14

0

C10

5

R14

4

R15

1

C50

8

C51

2

C13

4

C13

5

C13

9

R33

R39

R40

R42

R45

C17

3 C17

4

R65R

67R

68

R70

R71

IC10

2

IC10

5

R85

C11

C15

C55

Q13

Q8

C57

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Foil side view (J79-0169-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 52: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

52

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R605

C421

Q307

3 4

1 5

Q30823

15

L304

L305

R301

R306

R308

R310

R312

R313R314R316

CN302

R320R323R332

R333

R335

R338

C301 +

+

+

TH301R343

R344

R347E

C

B

R350

C317

C322

C323C32

C325

C329

AUX

C342 C350

D303

D304

+

D305

D312

IC302

IC303

CN308RF OUT

REV DET

1 GND

FB2

1 GND

FB2

PAB

B B B H/L

FWD

REV

PC RPT

GN

D8T A

UX

J79-0169-09 B/3

R40

3

Q30

2

Q30

4

Q30

6

Q31

2

Q31

3

R31

1R

315

R31

7

R31

9

CN

304

CN

305

R32

1

R32

6

R32

7

R32

9

R33

1

R33

4

TH30

2

R34

2

C30

8

R34

8

C31

0

C31

3

R35

4

R35

5

C32

1

C32

7

1 12

C32

8

C33

1

TS30

1

C34

8

C34

9

C35

2

C35

4

C35

7

C35

8

D30

8

D31

0

D31

8

IC30

4

R30

0R31

8

R35

7

C33

3

C33

4

CN

306

+B

CN

307

GN

D

34

16

16

34

45

18 4

5

18

45

18

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Component side view (J79-0169-09 B/3)

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 53: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

53

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R400 R410Q301

12B

Q305

Q30823

15

Q310

34

15

L302

L306

J402

R303

R304

R306

R308

CN301DRV IN

R324

8B

R325

R337

R339

FWD DET

R340R341

C311

C319

R356

R358

1

2

3

4

R359

C320

C324

C325

AUX

IN

OUT

C343

C344

C345

C355

D304

+ +

+

+

D307

D317

GN

D8T A

UX

J79-0169-09 C/3

R32

9

R35

512

TS30

1

Q30

9

E C B L301

L303

R30

0

R30

5

IC60

1

R32

2

R32

8

C30

3

C30

6

R34

9

C31

4

C31

8

R35

7

R36

0

C33

0

C33

3

C33

4

C34

1

C34

6

C35

1

C35

3

D30

6

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Component side view (J79-0169-09 B/3)

TX UNIT (X56-3140-10) (C/3) : K,K2,K3

Component side view

(J79-0169-09 C/3)

PC BOARD TKR-740

Ref. No. Address

IC302

4O

IC303

5I

IC304

IC601

5G

5H

Q301 5K

Q302 8I

Q304 6H

Q305 4K

Q306 6C

Q307 6D

Q308 5J

Q309 7K

Q310 5L

Q312 4I

Q313 4H

D303 7F

D304 5J

D305 6G

D306 9M

D307 6M

D308 9D

D310 7G

D312 6C

D317 4K

D318 4H

Page 54: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

54

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R330

C302

C304

C305

C315

C316

C326

C332

C339

C340

C30

7

C30

9

R34

5

R34

6

C33

5

C33

6

C33

7

C31

2C

338

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Foil side view (J79-0169-09 B/3)

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 55: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

55

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0169-09 B/3

J79-0169-09 C/3

C414

D500 1

3

CN

502

OU

TIN

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Foil side view (J79-0169-09 B/3)

TX UNIT (X56-3140-10) (C/3) : K,K2,K3

Foil side view

(J79-0169-09 C/3)

PC BOARD TKR-740

Ref. No. Address

D500 13P

Page 56: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

56

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

S DG

S

S

GD

S

GD

C23

R210

C26

C33

C34

C35

R2224

4 5

1 8

5

18

C41

C47

C52

C233

R270

R271

+

+

DVcc

8T

J79-0037-09 A/3

C236

MOD

+

C3

FB

GND 1

2

FB

GND 1

2

C4

TC1

C5

TC2 C258

D1D2 D3D4

+

+

+

D6

D206

L102

L501

L502

R113

R505R506R507

L1L2 R123

L4L7

R517

R518

R134

C102

C104

+

+

+

C107

R149

C111

IC3

TOMIC

34

15

IC4

C506C507

R18

R20

R22

C132

R23R24

Q1

MAINPLL

R25

Q2

Q3

Q4

Q5

Q7

CV

MAIN PLL

C143

C144

4 5

1 8

R1R2

R182

R183

R5

R6 R7R8 MAIN

VCO

R48R49

Q208

IC100

IC304

CN1DRV OUT

CN

L244

C20

C21

C25

C27 C28

C29

C30

C31

C45

C22

8

C1C2

C7

C8

C9

D5

C27

1C

272

CN

103

CN

104

L5L6

L11

IC1 G

IO

R13

R14

R15

R16

R17

R19 R

21

R27Q

6

R47

R54

L202

L208

C10

C12

C14

C17

C70

Q21 1 2

35

C61

89

116

R3

R4

C16

5

C16

6IC10

6

C23

5

C23

9

Q10

7R

101

R10

5R

114

1213

1213

124 M

OD

TO MIG

EVT

EST

DT

CK

NC

NC

SD

A

1

124

R11

7

R11

8R

119

R12

2

R12

4 R51

5

R51

6

C11

2

C11

3

C11

8

C50

1C

119

C50

2

C51

0

C51

1

R58

8

IC10

9

C32

12A

UX 8T

GN

DR

PT PCR

EVR

223IC20

3

C10

9R

150

R26

R18

4R

186

C16

7

C18

6

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (A/3) : E

Component side view (J79-0037-09 A/3)

Ref. No. Address

IC1 3F

IC3 9H

IC4 9G

IC100 10H

IC103 5Q

IC106 9E

IC109 5J

Ref. No. Address

IC200 4L

IC202 6L

IC203 4J

IC301 7M

IC304 7J

IC305 4K

Q1 6H

Ref. No. Address

Q2 6F

Q3 7H

Q4 8F

Q5 8G

Q6 7G

Q7 4I

Q17 4L

Ref. No. Address

Q18 4L

Q21 6D

Q107 7I

Q201 6N

Q208 4I

Q241 7L

D1 5H

Ref. No. Address

D2 5F

D3 5H

D4 5F

D5 7H

D6 7F

D50 4L

D51 4L

Ref. No. Address

D52 4L

D201 5N

D202 5N

D203 6N

D206 5B

D503 4L

Page 57: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

57

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

SGD SGD

XF211

R2224

4 5

1 8

5

18

R228

C201R240

C208

C209

R245

R247 LE

CK

DA

R249

C212

R250R254

C220

C221

C222

SUB PLL

EXT REF

C74

C75

C76

C233

C240 +

++

+

+

C245

C246

C248

C250

C251

C252

C253

C256

D201

D202

D203

IC202

C282 C283

L501

L502

C288

C293

CN101EXT REF IN

CN102REF OUT

R517

R130

R131

R134

CVMIC

C115

506507

C127+

C128

C143

R180

R181 DDS

R191

R590R591

R592

R64

D503

SUB PLL

CV

L204 L209

IC301

IC304

IC305

34

15

34

15

CN2

CN3

Q241

C591C592

C594

L240

L241

L244

L247

R204

R205

R24

4

R25

2

C73

C23

5

R27

2

C23

9

C24

4

C28

4C

292

MO

DTO M

IGEV

TES

TD

TC

KN

CN

CS

DA

SC

LLD

TR

PTC

PN

CD

PEX

RC

VT

REV

FWD

GN

DPA

GB B B PA

B261

1

89

116

24

1213

124

R51

5

R51

6

C50

1C

502

CF1

C51

0

C51

1

R19

0R

192

R58

8

IC10

9

L242

L248

12A

UX 8T

GN

DR

PT PCR

EVFW

DH

/L B B BPA

B1

R22

3

Q17

Q18

IC20

0

IC20

3 D50

MA

IN

D51

SU

B

D52

TX

R18

6

R55

R56

R57

R59

3

C59

5

R21

3

R21

4

R22

4R

225

R22

7

C20

3

C21

0

X20

1

C21

1

C21

4C

215

C21

8

C21

9

L105

C28

5

C28

6

R50

2C

P

DP

EN

R50

3

R50

4

X10

1

C12

6

Q20

1

L203

L205

C58

4R

202

R20

3R

209

XF2

10L1

06

C11

4

IC10

3O G I

TX UNIT (X56-3102-70) (A/3) : E

Component side view (J79-0037-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 58: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

58

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

SGD

S

GD

S

GD

R211

R215

R217 R218

R221

R241

C213

R251

C216

R253Q15

C71

R260R265

4 5

1 8

R269

++

+

C232

C82

R275

C242

C247 +

+

C249

C254

C259

Q10

2

C260

Q109

C264

D205

+

C265

Q110

23

15

Q113

Q114

L104

C277

C278

C280

C287

C290

C291

C296

C297

C298

R102

R106

R108 R112

R501

R121R510

R511

R129

C101

C106

R145

78

114

C504

C124

C125

C529

C147

R185

R580

D101

R51

R587

Q205

Q206

Q207

R62

L201

L206

L207

R73

IC107

R79

IC110

G

O

+I

R88

Q242

L243

R208

R21

6

R22

0

C40

C42

C46

R24

2

R24

3

C72

C22

5

C77

C23

7

R27

3

R27

4

C25

7

C26

2

C27

4

C27

5

IC20

5

G OI

G OI

C28

9

C29

4

C29

5

IC2

C12

3

C51

2

C13

4

C53

3

45

18

R58

1R

582

R58

3R

584

R58

5R

589

Q20

2

C16

8

C16

9

C17

0

IC10

8

O G I

C58

6

C58

7C

588

C58

9

Q24

0

C59

3

L246

R21

2C

206

C20

7

C66

C22

3

C22

4

R26

2

R26

3

R26

4R

266

R26

7

R26

8

C24

1 C24

3

C25

5

Q10

6

Q10

8

C26

1C

263

C26

6

C26

7

C26

8

C26

9

Q11

2

L101

Q11

5

L103

C27

0

C27

9

C28

1

IC20

4

R10

0

R10

7

R11

5

R12

0

R13

7

C10

0

C10

3

R14

2

R14

3R

146

C11

0

C11

6

C13

0

C14

0C

141

C14

5

R50

R52

D10

3R63

R72

R74

R77

C18

7

L210

R78

C18

8

R86

R87

R89

R61

D20

4

IC20

6

L503

C17

3 C17

4C17

5

R20

6

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (A/3) : E

Foil side view (J79-0037-09 A/3)

Ref. No. Address

IC2 3H

IC102 9N

IC105 9L

IC107 7H

IC108 3E

IC110 9J

IC204 8D

Ref. No. Address

IC205 4G

IC206 9H

Q8 9Q

Q9 8P

Q11 7P

Q12 7P

Q13 7Q

Ref. No. Address

Q14 6Q

Q15 7C

Q102 9B

Q106 9B

Q108 9C

Q109 8B

Q110 6C

Ref. No. Address

Q112 6C

Q113 6B

Q114 6B

Q115 9E

Q202 7F

Q203 8Q

Q205 8B

Ref. No. Address

Q206 7D

Q207 6H

Q240 5I

Q242 7I

D7 8P

D11 8Q

D12 8Q

Ref. No. Address

D101 7B

D103 7C

D204 6G

D205 8C

Page 59: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

59

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

GD

J79-0037-09 A/3

C22

C24

R219

C36

C37C38

C39 C43

C58

C62

Q11

B

C

E

Q12

Q14

D

S

GC68

R257

R258

C79

C80

C6

R109

D11

R509

R510

R511 R512

R138R139

45

18

L13

L14

R141

C108

R147

C504 C505

R10R11

R12

C131

C133

C136

R28

C138

R29

Q9

R30

R31

R32

R34

R35

R36

R37

R38

R9

R41

R43R44

R46

Q203

C171

C172

R69

IC110

G

O

+

+

+

+

+

+ +

+

+

I

C13

C16C19

R51

3

C50

8

C51

2

C13

4

R22

6

C57

C64

C65

R13

2 R13

3

R14

0

R14

4C

135

C13

9

C17

3 C17

4

R65R

67R

68

IC10

5

C11

C50

C51

C53

C54

C55

C56

C59

C60

C63

Q13

R25

9

C78

C23

8D7

D12

L15

C10

5

R15

1

Q8

R33

R39

R40

R42

R45

R70

R71

IC10

23

34

16

4

15

R85

C15

TX UNIT (X56-3102-70) (A/3) : E

Foil side view (J79-0037-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 60: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

60

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C420

C425+

Q308

15

23

L304

L305

L308

R301

R306

R308

R3101 GND

FB2

1 GND

FB2

R312

R313R314R316

CN302

R320

CN308RF OUT

R338

REV DET

J79-0037-09 B/3

C301

TH301

C317 +

+

+

+

+

+

C322

C32

AUX

C325

C329

D303

D304

D305

IC302

IC303

R40

3

C43

1

C43

2

Q30

2

Q30

41

6

3

34

16

4

45

18 4

5

18

Q30

9

R30

0

R31

1R

315

R31

7

R31

9

CN

304

CN

305

R32

1

CN

306

+B

CN

307

GN

D

R32

3

R32

6

R32

7

R32

9

C31

0

C31

3

R35

4

R35

5

R35

7

C32

1

C32

7

C32

8

PAB

B B B H/L

FWD

REV

PC RPT

GN

D8T A

UX

121

R36

7

C33

1

C33

3

C33

4

TS30

1

C34

8

C34

9

C35

4

D30

8

D31

0

D31

8

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (B/3) : E

Component side view (J79-0037-09 B/3)

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 61: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

61

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C411

C412

C413

C420

C430

1

2

3

4

Q301

Q308

15

23

L302

J402

OUT

IN

R303

R304

R306

R308

CN301DRV IN

R324R325

J79-0037-09 C/3

R339

C311 B

+

+

+

+

C319

R358

R359

C320

C324

AUX

C325

C353

D304

D320

R30

0

R32

9

C30

3

R35

5

R35

7

GN

D8T A

UX

12

C33

3

C33

4

TS30

1

C41

0L3

01

L303

L306

L307

R30

5

R32

2

R32

8

C30

6R

360

C33

0

FWD

DET

C34

1

IC60

1

D30

6

TX UNIT (X56-3102-70) (B/3) : E

Component side view (J79-0037-09 B/3)

TX UNIT (X56-3102-70) (C/3) : E

Component side view

(J79-0037-09 C/3)

PC BOARD TKR-740

Ref. No. Address

IC302

5P

IC303

5I

IC601

5G

Q301 5K

Q302 8I

Q304 6H

Q308 5J

Q309 4H

D303 7F

D304 5J

D305 6G

D306 9L

D308 9D

D310 7G

D318 4H

D320 4M

Page 62: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

62

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R330

C302

C304

C305

C315

C316

C326

C332

C30

7

C31

2

C33

5

C33

6

C33

7

C33

8C

339

C34

0

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (B/3) : E

Foil side view (J79-0037-09 B/3)

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Page 63: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

63

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0037-09 B/3

J79-0037-09 C/3

C414

D5001

3

CN

502

INO

UT

TX UNIT (X56-3102-70) (B/3) : E

Foil side view (J79-0037-09 B/3)

TX UNIT (X56-3102-70) (C/3) : E

Foil side view

(J79-0037-09 C/3)

PC BOARD TKR-740

Ref. No. Address

D500 13P

Page 64: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

64

IO1

IO2

IO4

IO5

IO6

IO7

IO3

A16

A18

A15

A12A

7

A6

A5

A17

A14

A13 A

8

A9

A11

EV

R

ES

R

MU

T

EV

C

ES

C

OE

C

SD1

SD2

SD0RDY

MIS

SC

RSSI

CK

DT

ESR

EVR

SCL

SDA

DP

CP

EPR

LDR

CVR

EVT

EST

DT

CK

SDA

SCL

LDT

PRT

CP

DP

EXR

CVT

VCE

FWD

REV

CS0

BLT

EN7

SW6

SW5

SRST

BCLK

SW4

EST

EVT

BEAT

SW3

SW2

SW1

MD

S

INC

HM

T

HS

DS

TOS

FW

D

SP

SR

EV

CV

TTO

VC

VR

VC

EV

S2

RS

SI

OP

T

RA

S

PRT

IAD0

IAD1

IAD2

IAD3

IAD4

IAD5

IAD6

IAD7

VS

1

PF

0

PF

1

PF

2

PF

3 IS IAL

IRD

IWR

IAD

15

IAD

14

IAD

12

IAD

11

IAD

9

IAD

8

PF

6

PF

5

IAC

K

D0

D1

D2

D3

D4

D5

D6

D7

D5

D6

D3

D7

D1

D4

A10

D2

SD

0

SD

7

SD

6

SD

5

SD

4

SD

3

SD

2

SD

1

D0

A0

A1

A2

A3

A4

SA

7

SA

6

SA

5

SA

4

SA

3

SA

2

SA

1

SA

0

CS1

VS

4

VS

3A

UX

I1

A0

A1

A2

A3

A4

A5

A6

A7

A11

A10

A18

A17

A14

A13

A9

A12

A15

A16

A8

IRQ

2

AU

XI3

EPR

PAG

LDR

MDAT

CK

DT

MON

SC

RPTT

AUXI2

RST

SD4

SD5

SD6

SD7

SA1

SA2

SA3

SA4

SA5

SA6

SA7

WR

CS1

RD

TEST

CS

1

CS

0

TX

D1

RX

D1

SC

L

SD

A

PT

T

CP

DP

RD

Y

BC

LK

RD

WR

LDT

SR

ST

BEAT

HO

K

PAG

SA0

SD3

IAD

10

IAD

13

R40 1k

R43 1k

R42 1k

R41 1k

R37 1k

R36 1k

L1

C32

100p

C33

100p

C34

100p

C35

100p

C36

100p

C37

100p

R30 1k

R44

3.3k

R35

3.3k

C53

100p

C54

0.01

u

C55

100p

R45

33k

R31 1k

R32 100k

R26

31k

R22

90

R23

11k

R23

31k

R29

310

0

R29

010

0

R28

610

0

R25

747

k

R26

71k

R27

41k

R28

710

0

R28

410

0

R28

110

0

R24

61k

R24

41k

R24

14.

7k

R23

81k

R23

61k

R23

51k

R23

41k

R24

91k

R29

710

0

R30

110

0

R30

010

0

R29

910

0

R29

810

0

R210 1k

R200 470

R199 100

R204 0

R209 0

R208 0

R211 1k

R203 1k

R197 0

R191

4.7k

C192

0.01u

C38

100p

C39

100p

C40

100p

C41

100p

C42

100p

C43

100p

C44

100p

R202 1k

L7

C46

100p

C45

100p

C28

0.1u C29

0.01

u

C31

1000

p

C30

10u1

6

C27

1000

p

R21

31k

CP4 1k

CP5 1kCP6 1k

CP7 1k

R158 47k

R17

51k

R17

21k

R17

9

R18

3

R18

7

R224 1k

R23

9

R218 1k

R226 1k

R225 1k

R157 1k

R156 1k

R221 1k

R222 1k

R223 1k

R250 1k

R159 47k

R214 1k

R215 1k

R216 47k

R27

8

R27

5

R27

1

R26

8

R26

4

R26

0

R24

51k

R24

21k

R25

310

0

R25

510

0

R25

810

0

R26

110

0

R26

510

0

R26

910

0

R27

210

0

R27

610

0

CP

1447

0

CP

1547

0

CP

11k

CP

21k

R162

47k

C22

1

0.01

u

C22

2

0.01

u

R23

210

0

R23

010

0

R22

810

0

R227 1k

R212 1k

C187 0.01u

R219 47k

R220 47k

R217 1k

L12 10u

L9 10u

L13 10u

C26

10u1

0

C23

0.01

u

C20 1u

L6 10u

C25

10u1

0

C22

0.01

u

C19 1u

C18

0.1u C21

0.01

u

C24

10u1

0

D1DA204U

1234567891011121314151617

A3

18A

219

A1

20A

021

I/o0

22I/o

123

I/o2

24G

ND

25I/o

326

I/o4

27I/o

528

I/o6

29I/o

730

CE

31A

1032

oE

IC15

TC

74V

HC

245F

T

1D

IR

2A

1

3A

2

4A

3

5A

4

6A

5

7A

6

8A

7

9A

8

10G

ND

11B

812

B7

13B

614

B5

15B

416

B3

17B

218

B1

19G

20V

CCC

208

0.01

u

R188

47k

C20

9

0.01

u

C210

220u6.3 R24

0

R25

21k

R28

21k

R28

51k

R28

31k

C52

100p

C51

100p

C50

100p

C49

100p

C57

100p

C58

100p

R46

68k

C59

5600p

R19

51k

C194

10u10C203

0.01u

R207 47k

R205 1k

R206 1k

R161 47k

R262 47k

R266 47k

R28

01k

R27

047

k

R27

347

k

R29

2

R28

9

R27

9

R27

7

R29

4

R25

91k

CP11 470

CP10 470IC16

TC

74V

HC

245F

T

1D

IR

2A

1

3A

2

4A

3

5A

4

6A

5

7A

6

8A

7

9A

8

10G

ND

11B

812

B7

13B

614

B5

15B

416

B3

17B

218

B1

19G

20V

CC R

237

47k

C186

0.01u

C181

10u10

C207

220u6.3

C212

1u

C213

1u

R10

0

C256

0.01u

R16

47k

R19

2

10k

C191

1u

C19

0

12p

C18

9

12p

R33

7

47k

R193

0

C18

5

0.01

u

R19

0

47k

R196 47k

R29

647

k

R189

4.7k

R194 18k

C147

1u25

C68

1u25

C60

100p

R47

100k

R49

18k

R48

47k

C88 1u

R76

47k

C87

1500p

C89

750p

R78

47k

C91

1uR

8047

0k

C66

0.01

u

R180 47k

R24

71k

R24

31k

R25

61k

R25

41k

R25

11k

R24

81k

L11

C18

8

3p

X1L77-1956-05

14.745M

L4

L5

R34 1k

R33 1k

L2

L3

IC46

TC

7S32

FU

-F

1IN

B2

INA

3G

ND

4oU

TY

5V

CC IC

47T

C7S

32F

U-F

1IN

B2

INA

3G

ND

4oU

TY

5V

CC

1IN

B

2IN

A

3G

ND

4oU

TY

5V

CC

IC5NJM78L08UA-ZB

GND

IN oUT

IC4TA7805FQ

GND

IN oUT

IC6TA7805FQ

GND

IN oUT

IC35TC7S32FU-F

1 INB2 INA3 GND 4

oUTY

5VCC

R28

22(1/2W)

R29

22(1/2W)

R27

22(1/2W)

1

HSD0

LSD0P92

IACK

EPR

BYTE

CNVss

PAG

LDR

RESET

Xout

Vss

Xin

Vcc

NMI

MDAT

TEST

MAIN

CK

DT

MON

SC

RPTT

AUXI2

25

CHECK

26

PT

TP

C0

PC

1

TX

D1

RX

D1

SC

L

SD

A

TX

D

RX

D(H

OO

K)

CP

DP

RD

Y

* HO

LD

* BC

LK

RD * WR

LDT

SR

ST

CS

1

CS

0

A19

50

A18 51

A17

A16

A15

A14

A13

A12

A11

A10

A9

Vcc

A8

Vss

A7

A6

A5

A4

A3

A2

A1

A0

IWR

IRD

IAL

IS

75PF3

76

PF

2

PF

1

PF

0D

7

D6

D5

D4

D3

D2

D1

D0

FW

D

RE

V

CV

T

CV

R

RS

SI

VC

E

AU

XI1

AV

ss

AU

XI3

VR

EF

AV

cc

IRQ

2

PF

6

100

PF

5

IC10R3111H421C-F

GNDVDD oUT

R75

7

47k

CN11

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

CN21

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

IC3NJM78L05UA-ZB

GND

IN oUT

1

4V-

5

8V+

CP3 1k

1CHECKBLT

EN7

SW6

SW5

BYTE

CNVss

P87

P86RST

Vout

Vss

Xin

Vcc

NMI

WR

RD

SUB

RDY

PBO

SW4

SW3

SW2

SW1

25

EST

26

EV

T

PR

T

BE

RT

P67

P66

VS

4

VS

3

VS

2

VS

1

OP

T

TOV

SP

S

RA

S

TOS

HS

DS

HM

T

INC

MD

S

MIS

IAD

15

IAD

14

IAD

13

IAD

12

IAD

11

50

IAD

10

51IAD9

IAD8IAD7

IAD6

IAD5

IAD4

IAD3

IAD2

IAD1

Vcc

IAD0

Vss

A7

A6

A5

A4

A3

A2

A1

A0

D7

D6

D5

D4

75D3

76

D2

D1

D0

MU

TE

I/O7

I/O6

I/O5

I/O4

I/O3

I/O2

I/O1

AN

7

AN

6

AN

5

AN

4

EV

R

ES

R

AN

1

AV

ss

AN

O

VR

EF

AV

cc

EV

C

ES

C

100

OE

C

5VAVR

8VAVR

DET

8VB

CONTROL UNIT (X53-4210-10)(A/4)

RESET

AVR5V

AVR

RA

CHECK

CHECK

SP RRA

5V

BUS BUFFER

BUS BUFFER

SURGEPROTECTOR

MULTIPLEXER

VOLTAGEDETECTOR

RX

UN

IT (

X55

-)-C

N6

TX

UN

IT (

X56

-)(A

/3)-

CN

3

IC7AT29C02090TU

FLASH ROM

A11A

9

A8

A13

A14

A17WE

VC

C

NC

A16

A15

A12A

7

A6

A5

A4

IC1730622M4-103GPU

CPU

IC13NJM4558E-ZB

AF AMP

IC1830622M4-103GPU

CPU

B

PAB

RA

RXG

DET

DEG

SC

RSSI

CKDT

ESR

EVR

SCL

SDA

DP

CP

EPR

LDR

GND

CVR

NC

NC

B

B

B

NC

NC

NC

MOD

TO

MIG

EVT

EST

DT

CK

NC

NC

SDA

SCL

LDT

PRT

CP

NC

DP

EXR

CVT

REV

FWD

GND

PAG

B

B

B

PAB

2SK1824-AQ1

BEATSHIFT

47k

1k 1k 1k1k1k1k1k1k1k 1k47k

47k

47k

47k

47k

IC48TC7S32FU-F

OR GATEIC46-48

4.8V

0V

4.5V

4.8V

0V

4.8V4.7V

5.0V

5.0V 4.9V

5.0V 4.7V

4.9V

4.9V

8.0V

10.2V

12.3V

12.1V

0.5V

4.8V

4.4V

4.4V

4.8V

A B C D E

1

2

3

4

5

6

7

X53-421 1/4

Page 65: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

BR

IAL

FL2

FL1

FL0

PF

3

IAD

1

PF

2

IAD

0

PF

0

IAD

2

PF

1

IAD13

IAD14

IAD15

IACK

IAD4

IAD5

IAD6

IAD7

IAD8

IAD9

IAD10

IAD11

IAD12

IWR

IRD

IS

PF

5

FL1

FL2

FL0

IRQ

2

PF

6

SP

SH

MT

IAD3

EV

CC

KD

T

RA

SH

SD

STO

SM

ISM

DS

INC

TOV

RS

T

VS

4

VS

2

VS

1

OP

T

VS

3

BE

AT

C16

80.

1u

C16

710

u10

C172

10u10

C20

147

0p

C23

10.

01u

C20

0

470p

C23

2

0.01

u

C152 470p

C183 0.01u

R349 47k

R350 47k

R351 47k

R352 100

IC24TC74HC4040AF-F

1Q12

2Q6

3Q5

4Q7

5Q4

6Q3

7Q2

8GND

9Q1

10CLoCK

11CLEAR

12Q9

13Q8

14Q10

15Q11

16VCC

C205

0.01u

C204

470p

C227

0.01u

C228

470p

C224

27p

C225

15p

R344

0

X2

16.5

15M

Hz C223

27p

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

767778798081828384858687888990919293949596979899100

R15

147

k

R15

047

k

R14

947

k

C15

6

0.01

u

R346 100

R347 100

R348 100

R291 4.7k

C226

0.01u

R345

47k

R343

4.7k

R160

100

C202 470p

C229 0.01u R29

5

47k

C16

64.

7u10

C16

510

00p

C16

410

00p

1

VIN

L

VC

C1

AG

ND

1

VR

EF

L

VR

EF

R

VIN

R

CIN

PR

CIN

NR

CIN

NL

CIN

PL

VC

OM

VO

UT

R

AG

ND

2

14

VC

C2

15

VO

UT

L

LRC

IN

BC

KIN

DIN

DO

UT

XT

I

XTO

CLK

IO

VD

D

DG

ND

MC

MD

ML

28

RS

T

C17

010

u10

C16

9

10u1

0

C19

3

0.1u

C175

0.01u

C107

10u10

C106

10u10

C16

24.

7u10

C16

14.

7u10

IC29BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

C151 0.01u

R71

470k

C77

100p

C76

1u

R69

100k

R66

100k

R70

56k

C83 0.01u

C13

11u

25

C13

210

0p

R12

133

k

R12

256

k

C13

7

47u6

.3R

129

100k

R13

012

0k

C13

810

u10

R12

822

0k

C126 0.01u

C79

10u1

0

C78

10u1

0

R10

7

22k

R105

22k

C13

4

100p

R10

6

220k

R174

47kC

174

1800

p

C17

3

180p

R17

7

47k

R17

8

47k

R17

3

22k

R18

5

47k

C171

0.01u

R18

4

22k

C17

8

270p

R18

6

47k

C17

6

10u1

0

C17

9

2700

p

R182

47k

R10

8

22k

R11

0

330k

C13

5

100p

R10

9

47k

R152

47k

R94 0

R95

100k

R11

90

C10

510

u10

R96

120k

R18

1

10k

R17

6

100k

C18

0

10u1

0R

171

150k

C15

8

1000

p

C15

9

10u1

0

R16

7

22kR16

6

22k

C157

0.01u

R16

4

100k

C15

4

10u1

0R

165

120k

C18

410

0p

R16

8

22k

R39

4.7k

C56 1u

R38

18k

R16

9

10k

C61

0.02

2u

C80

10u10

C86

4700

p

C84

4700

p

R74

2.2k

C90

0.01

u

R72

2.2k

R73

2.2k

2SK1824-AQ5

R288

47k

C206

10u10

C214 1u

C211 220u6.3

C96

0.01

u

IC14BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

R11

7

0

R13

6

10k

R13

7

10k

C14

5

0.01

u

C14

3

1uR

124

27k

C10

210

0p

R10

433

k

C108 0.01u

C10

010

u10

C12

5

1u

R10

0

27k

R12

3

10k

R103

56k

R140

0

R13

3

27k

R13

2

10k

C12

7

10u1

0

C144 1u

C14

1

1000

p

C13

6

68u6

.3

R12

7

12k

R12

6

10k

C177 1u

R12

0

0

R11

8

0

IC37BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

R101

47k

R13

5

27k

C14

8

1u25 C146

1u25

C12

310

0p

R13

410

0k

C133 0.01u

C12

8

1u25

C12

9

1u25

C13

0

1u25

R13

147

k

C18

2

1u

C13

933

p

IC25TC7S04F-F

1NC

2INY

3VSS4oUTY

5 VDD

W1

W1

1

4V-

5

8V+

IC40NJM4558E-ZB

1

4V-

5

8V+

IC12NJM4558E-ZB

1

4V-

5

8V+

IC32NJM4558E-ZB

1

4V-

5

8V+

IC33M62364FP-F

1VIN1

2VoUT1

3VoUT2

4VIN2

5VDD

6LD

7CLK

8DI

9VIN3

10VoUT3

11VoUT4

12VIN4

13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

1

4 V- 5

8V+

IC34NJM4558E-ZB

1

4V-

5

8V+

1

4V-

5

8V+

L10

R92 0

R91 0

R93 0

R86 0

R90 0

TA TD

RA RD

4V

MI

DETAGND

VOL

COUNTER

DETI

DETO

LSDO

HSDO

ANI

RTA RD

RATD

TA

RA

RXI

RXO

HSD

RTA RRA

MOD

BEAT SHIFT

INVERTER

AF AMP

AF AMP

AF AMP

D/A CONVERTER

AF AMP

CODE4 CODE2CODE3 OPTIONCODE1

TO SELECT

MULTIPLEXERMULTIPLEXER MULTIPLEXER

IC36NJM4558E-ZB

AF AMP

IC22NJM4558E-ZB

AF AMP

AD/DA

IC27PCM3000E

CODEC

IC30AD2185BSTZ133

DSP

IC31NJM4558E-ZB

AF AMP

B

PAB

B

PAB

IAD3

IAD4GND

IAD5

IAD6

IAD7

IAD8

IAD9

IAD10

IAD11

IAD12

GND

CLKIN

XTAL

VDD

CLKOUT

GND

VDD

WR

RD

BMS

DMS

PMS

IOMSCMS

PF

4P

F5

GN

D

PF

6

IRQ

2

DT

0

TF

S0

RF

S0

DR

0

SC

LK0

VD

D

DT

1

TF

S1

RF

S1

DR

1

GN

D

SC

LK1

ER

ES

ET

RE

SE

T

EM

S

EE

EC

LK

ELO

UT

ELI

NE

INTEBR

BR

EBG

BG

IAD13

IAD14

IAD15

IACK

VDD

GND

IS

IAL

IRD

IWR

D8

GND

VDD

D9

D10

D11

GND

D12

D13

D14D15

D16

D17

D18

D19

GN

D

D20

D21

D22

D23

FL2

FL1

FL0

PF

3

PF

2

VD

D

PW

D

GN

D

PF

1

PF

0

BG

H

PW

DA

CKA0

IAD

0

IAD

1IA

D2

MIC SELECT

2.8V

2.8V

4.5V

0V 4.9V

2.8V 2.8V

2.8V

4.9V

4.5V

4.5V

4.5V

4.5V

4.5V

4.5V

2.8V

4.5V

F G H I J

X53-421 2/4

CONTROL UNIT (X53-4210-10)(A/4)

Page 66: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

PTT

SW3

SW4

SW5

SW6

EN7

MDAT

SW2

SW1

HOK

BLT

RSSI

DT

CK

IO7

IO6

IO5

IO4

IO3

IO2

IO1

MON

SC

TX

D1

RX

D1

MO

N

AU

XI1

AU

XI2

AU

XI3

OE

CE

SC

DT

CK

TEST

EXR

CVT

CVR

FWD

MUT

RPTT

C33

010

0p

R36

31k

R36

21k

C32

910

0pR

361

1k

R36

01k

R35

91k

R35

81k

R37

21k

C32

510

00p

C32

710

00p

C32

610

00p

C32

810

0p

C33

110

00p

C7

47u2

5

C11

470u16C8

1000

p

C9

47u2

5

R7

470

C10

47u25

R6

1MC5

330u

25

C4

1000

p

C13

0.1u

R8

2.2

C12

470u16

R36

71k

R36

61k

R36

51k

R36

41k

R36

91k

R36

81k

C33

410

00p

C33

510

00p

C33

210

00p

C33

310

00p

C33

610

00p

C33

710

00p

R34

247

k

R35

347

k

R35

447

k

R35

547

k

R35

647

k

R35

747

k

R34

147

k

R34

047

k

R33

847

k

R33

647

k

R33

547

k

R33

947

k

D38DA204U

D20DA204U

D15DA204U

D25DA204U

D30DA204U

D11DA204U

D34DA204U

1STRB

2DATA

3CLK

4Q1

5Q2

6Q3

7Q4

8VSS

9QS

10Q’S

11Q8

12Q7

13Q6

14Q5

15OE

16VDD

D8DA204U

D9DA204U

D6DA204U

D10DA204U

D16DA204U

D12DA204U

C31

6

0.01

u

C30

610

00p

C30

710

00p

C30

510

00p

C30

410

00p

CN6

1 RRA

2 RTA

3 RPTT

4 ExMON

5 GND

6 I/01

7 I/02

8 I/03

9 I/04

10 I/05

11 I/06

12 I/07

C6

1000

p

C3

1u

R4

10k

R5

10k

R327 1k

R326 1k

C30

810

00p

C30

910

00p

C31

010

00p

C31

210

00p

C31

110

00p

D14DA204U

D19DA204U

D24DA204U

D37DA204U

R31

847

k

R31

747

k

R31

647

k

R33

147

k

R115

0

R116

0

C1 0.01u

R1 100

C2 1u

Q11DTC363EU

R3

47k

R14

71.

2k

R14

61.

2k

R14

51.

2k

R14

81.

2k

C31

9

1u25

C32

0

1u25

D17DA204U

D22DA204U

C322

1u25

C321

1u25

R370 1k

R371 1k

C31

8

100p

C31

7

100p

C32

4

0.1u

C32

3

1000

p

R143 1k

R144 1k

R141 100

R142 100

C150 1u25

C155 1u

D5DA204U

D7DA204U

C14

2

1000

p

C14

0

1000

p

D4DA204U

D3DA204U

R13

9

120k

C15

3

1u

R13

8

100k

Q9DTC114EUA

R33

4

3.9k

Q8DTC144EUA

Q10DTC144EUA

Q16DTC114EKA

Q14DTC114EKA

R15

41.

2k

R15

31.

2k

R329 100

R328 1kC101 10u10

C160 1u

D18DA204U

D21DA204U

Q15DTD123TK

Q13DTD123TK

Q12DTC114EUA

R125

1k

R114 0

R302 1k

R303 1k

R304 1k

R305 1k

R155 1k

R325 1k

R324 1k

R323 1k

R322 1k

R321 1k

Q2DTC114EUA

C31

5

0.01

u

R2

10k

C14

1u25

R9

47k

D31DA204U

D27DA204U

D26DA204U

D35DA204U

C31

310

0p

C30

110

0p

C30

210

0p

C30

310

0pD39DA204U

D13DA204U

D28DA204U

C15

100p

C149 100u6.3

R380

1k

R306

10k

R30

7

47k

R31

4

47k

R31

5

47k

C163 100u6.3

CN5

1 B

2 FWD

3 EXR

4 CVT

5 CVR

6 RD

7 RSSI

8 SPO

9 SPO

10 SPI

11 GND

12 GND

13 SPG

14 SPG

IC49TC7S32FU-F1 INB

2 INA

3 GND 4oUTY

5VCC

C30

010

0p

1IN

/oU

T

2oU

T/IN

3G

ND

4C

oNT

5V

CC

1C1+

V+

C1-

C2+

C2-

V-T2oUT

8R2IN

9 R2oUT

T2IN

T1IN

R1oUT

R1INT1oUTGND

16VCC

IC38TC7S00FU-F

1IN

B

2IN

A

3G

ND

4oU

TX

5V

CC

R310

560

R311

560

CN3

1SPI

2SPG

3VLO

4VLI

5GND

6BLT

78C

8HOK

9PTT

10EXR

11SW1

12SW2

13B

14B

15SW3

16SW4

17TEST

18SW5

19SW6

20EN7

21MDAT

22DT

23CK

24GND

25MI

26MIG

1V

CC

2IN

3N

C1

4D

C5

NFA

6N

FB

7B

S8

GN

D9

NC

210

oUT

CN4

1 SPM2 AUXO63 RXG4 AUXO55 RA6 AUXO047 RD8 AUXO39 TA

10 AUXO0211 TD12 AUXO113 DG14 TXG15 AUXI316 NC17 AUXI218 SC19 AUXI120 ExPTT21 TDX22 ExMON23 RXD24 NC25 NC26 NC27 NC28 NC29 NC30 NC

RXD

TXD

5C

TXD

RXD

SPG

PAB

B

SPO

5C

MIG

PTTIPTTO

TESTO TESTI

ANI

RPTTIRPTTO

AF MUTE

NAND GATE

INVERTER

INVERTERRSSI MUTE

INVERTERINVERTER

OR GATE

SURGEPROTECTOR

SURGEPROTECTOR

D3-5,7

SURGEPROTECTOR

SURGEPROTECTOR

D17,22

TE

ST

/SP

KR

RE

MT

I/O

D-S

UB

CO

NN

EC

TOR

DC SW

DC SW

DC SW

DC SW

232CTTL

D6,8-10,12,16

SURGEPROTECTOR

SURGEPROTECTOR

D13,26-28,31,35,39

D11,14,15,19,20,24,25,30,34,37,38

SURGEPROTECTOR

B

PAB

B

PAB

IC39BU4094BCFV

SHIFT REGISTER

IC42ADM202EARWZ

RS232C TRANCEIVER

IC45LA4422-E

AF POWER AMP

IC1TC7S66FUF

MULTIPLEXER

13.0V

6.5V11.5V

1.2V0V7.1V

5.0V

5.0V

0V

5.0V

0V

0V 1.2V

5.0V

5.0V

0V

X53-421 3/4

K L M N O

CONTROL UNIT (X53-4210-10)(A/4)

Page 67: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

67

DS

W2

DS

W4

DS

W3

DS

W1

SS

W3

DSW6

DSW5

DSW4

DSW3

DSW2

DS

W5

DSW1

DS

W6

SS

W6

SS

W5

SS

W4

SS

W3

SS

W2

SS

W1

SS

W4

SS

W1

SS

W2

SS

W5

SS

W6

CN701

15A

22

5B2

3E

N7

4C

K5

DS

6G

ND

CN700

1B

2S

W1

3S

W2

4S

W3

5S

W4

6S

W5

7S

W6

C73

9

1000

p

CP700470

CP701470

CP703470

C70

6

0.01

u

C70

7

0.01

u

CP702470

VR701R05-3442-05

CN705

1V

LO2

VLI

3G

ND

4B

LT5

B6

GN

D7

PT

T8

MIG

9M

IC10

HO

K11

MD

AT12

NC

13N

C14

NC

R72

21k

R72

01k

R73

21k

R73

11k

VR70010k

R716

68k

R71

8

1k

C715 1000p

C714 1000p

R733 6.8k

R719 680

C718 100pC71

6

10u1

0

R71

1

4.7k

Q709DTC144EUA

Q706DTA114EUA

Q707DTC144EUA

Q710DTC144EUAQ708

DTA114EUA

R706

220

R710330

R709220

R707

330

R708

220

D705

B30-2198-05

D704

B30-2197-05

D703

B30-2198-05

R72

1

0

D708DA204U

D711DA204U

D706DA204U

D712DA204U

C73

4

0.01

u

R72

7

10k

C732

0.1u

R72

5

10k

R734

10k

R723

1k

C72

7

1.5u

10

2SC4116(Y)FQ701

C73

1

47p

R72

6

220k

C729

0.1u

C730

0.1u

R724

6.8k

C72

8

1.5u

10

2SA1586(Y,GR)FQ700

C73

5

10u1

0

R72

8

150k

R73

0

10k

R72

9

100k

R717 1k

CN703

1

2

C717 100p

C719 470p

C721 100p

C723 470p

C73

3

0.1u

C74

1

10u1

0

C74

0

10u1

0

C74

2

10u1

0

IC705TA78L05FF

CoMINoUT

C70

8

0.1u

C70

9

0.1u

C71

0

0.1u

C71

3

0.33

u

C71

2

0.33

u

C71

1

0.33

u

C73

8

1000

p

C724

100p

C70

510

0p

C70

310

0p

C70

110

0p

C70

010

0p

R70

4

4.7k

R70

0

4.7k

R70

1

4.7k

R70

2

4.7k

R70

3

4.7k

R70

5

4.7k

C72

5

0.1u

C750 0.1u

C70

210

0p

C70

410

0p

R712

100(1/2W)

R714

100(1/2W)

R713

33(1/2W)

R71

568

(1/2

W)

R75

668

(1/2

W)

S706S40-2441-15

S700 S701 S702 S705S704S703

CN702

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

IC23NJM4558E-ZB

1

4V-

5

8V+

IC704NJM78L05UA-ZB

GNDINoUT

IC706NJM78L05UA-ZB

GNDINoUT

CN706

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

IC703BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

D71

0

MIN

ISM

DC

0750

2F

IC702BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

J700

87654321

9

10

C736 100p

C737 100p

C722 100p

C720 100p

IC701BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

IC700BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

BUSY

TX

POWER

CONTROL UNIT (X53-4210-10)(B/4)

CONTROL UNIT(X53-4210-10)(C/4)

(1)(2)(3)(4)(5)(6)(7)(8)

AGC

AVR

AVR

AVR

SHIFTREGISTER

CURRENTPROTECTOR

LEVELCONTROLLER

LEVELCONTROLLER

AF AMPSPG

SP

MIG

MI

GND

CK

DT

MDAT

EN7

SW6

SW5

TEST

SW4

SW3

B

B

SW2

SW1

EXR

PTT

HOK

8C

BLT

GND

VLI

VLO

SPG

SPI

NC

SW

6

SW

5

SW

4

SW

3

SW

2

HO

K

MIC

MD

ATNC

NC

SW

1

PT

T

EN

7

MIG

GN

D

BLT CKB

5B2

GN

DB

5A2

DS

VLI

GN

D

NC

VLO N

C

NC

CONTROL UNIT(X53-4210-10)(D/4)

SHIFTREGISTER

SHIFTREGISTER

SHIFTREGISTER

D701LA301DB(N)

D700LA301DB(N)

7SEGMENT

7SEGMENT

D707HSM88AS-E

D709HSM88AS-E

AF DETECT

AF DETECTOR

INT SP

D702B30-0864-05

INT REF

EX REF

REFERENCE

DC SW

Q706-710

D706,708,711,712

SURGEPROTECTOR

5.0V 12.7V

12.0V5.0V

10.2V5.0V

4.6V0V

4.9V

0V

0V

4.8V

4.7V

2.2V

0V

4.9V0V0V

4.9V0V

13.0

V0V0V0V0V

5.0V

5.0V

0.4V

0V

TSRQP

1

2

3

4

5

6

7

X53-421 4/4

Note : The components marked with a dot ( ) are parts of layer 1.

Page 68: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

68

-t

-t

CN3

21

L15

10u

C58

1000

p

2SC2873(Y)FQ7

L12

100n

C90

0.01

u

C24

0.01

u

C1

5p

L13

82n

R49

*

L65

33n

C70*

R37

27

L16*

R82 22

R38 0

C41

0.01

u

2SC3357-AQ1

C45

1000

p

L8*

C84

47u6

.3

C34

1000

p

L1

C47

15p

R7

47

R41

*

L2

10u

L5 47n

C17

47p

D4

1SV

283F

L14

10u

L9 10u

IC17AM1-G

GND

RFIN RFoUT

L17

10u

C97

*

C74

1000

p

A1W02-1982-15

124

53 6

C26

1000

p

R11 1k

R65 1k

R73

470

C87

*

C50

15p

R20 10

R54

10k

CN2CN10

R64

100

*L3

R39

100

1AoUT

2A-IN

3A+IN

4GND

5B+IN

6B-IN

7BoUT

8V-

R16

2.2kC

44

15p

C19

1000

p

C57

0.5p

C49

0.5p

C78*

R80

1.2k

R24 0

R8

0

L23

47n

C20

7

1000

p

2SC3357-AQ5

C73

1000

p

L25*

C21

12p

C27

0.01

u

2SC3120-FQ3

C85

0.01

u

CN1

RX IN

R35

180

C40

15p

L19

47n

R68

820

L66

180n

C3

1000p

L4

10u

R46

4.7k

L58

47n

C21

9

100p

R56

22k

C15

15p

R61

4.7k

C5

0.01

uC

31

1000

p

C21

7

1000

pR

74

470

C33

22p

R53

10k

C22

2*

C43

15p

R6

22k

C16

15p

C88

22u1

6

R2

18k

2SC3722K(S)Q17

C22

0*

C38 1u

L22

68n

C12

47pT

C2

8p

C39

39p

C25

47p

R26

100

C46

1000

p

R9

56

R57

100

C66

1000

p

C6

0.01

u

L7 10u

L6 10u

C75

27p

R18

1

1k

D2

1SV

283F

R67

820

R62

0

TC

1

8p

R45

10k

C21

8

22p

C2

1000

p

C18

1000

p

C83

0.01u

C96

12p

R179

0 R21

560

R44

47

D6

1SV283F

C7

1000

pC36

1000p

L64

10u

C30

1000

p

C77

0.1u

C11

1000

p

D31SV283F

R48 47

L26

47n

C82

470u

16

R71

12

R77 1k

R18

0

330

R1

1M

C86

*

R70

47

L21

47n

C4

0.01

u

C80

*

L10*

R72

10

R36

180

C71

27p

R58

4.7k

C32

*R

33 0

R5

0

R25 10

C22

1

4p

C79

15p

TH

1

15k

TH

2

15k

270

270

C97

330

330

270 4p

L16

22p

NO

15p

NO

15p

L79-1873-05

27p

22pL79-1899-05 22p

R49

L79-1900-05

C80

18p

C32

12p

C222

10p

9pL34-4598-05

L8

5p 2p

L34-4586-05

39n

1000p

L3

L34-4599-05

1000p

L34-4599-05

4pNOL34-4586-05

18pNOL34-4598-05

NO

27pL79-1901-05

NO

L79-1902-05 NO

L10

18p

CV1

L79-1872-05 NO

C70

15p

VCO-B

15p

C87L25 R41 C78

8C1

C86

330

C220

RF AMP

AVR

DOUBLEBALANCEDMIXER

RIPPLEFILTER

0-12 K3

2-70

0-11

K2,E

K

X55-308X-XX

8C1

8C18C18C 1

RX UNIT (X55-308X-XX)

2SK508NV(K53)Q8

VCO OSC

2SC4215-F(Y)Q14

BUFFER AMP

FREQ.CONTROL

D4,6

2SK508NV(K53)Q9

VCO OSC

VCO-A

CVR

RF LOCAL AMPQ1,3,5

FREQ.CONTROL

D2,3

2SC3722K(S)Q10

DC SW

IC14NJM2904E-ZB

DC AMP

2SC3722K(S)Q12

DC SW

Q13DTC114EUA

DC SW

4.2V

4.9V

0.9V

7.2V 7.0V

1V

A:6.7VB:6.0V

A:0VB:2.1V

0.8V

6.0V

7.3V

7.6V6.7V

A:0VB:5.0V

A:2.1VB:0V

A:6.0VB:6.7V

0-11:146-153.995MHz0-12:136-142.995MHz2-70:158-165.995MHz

B0-11:154-162MHz0-12:143-150MHz2-70:166-174MHz

A

A B C D E

1

2

3

4

5

6

7

X55-308 1/4

Page 69: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

R39

1

10k

R12 1k

R42

0

C55

0.01

u

L364

*

C32

947

0p

C92 4p C95 4p

R1880

R185

0

C35

1000

p

R19

1

0

R90

680

C67

*

R10

5

68

R394

0

C38

447

0pL40

R98 68

R38

30

R30

310

0

R1890

R30

410

0

R55

0

R38

70

R93 68

C40

247

0p

C20

8

0.1u

R104

22

R95

1.5k

C23

4p

R52

100

L11

*

C72

0.01

u

C10

4

68p

C89

0.01

u

1O

UT

PU

T

2V

+

3IN

PU

T+

4IN

PU

T-

5V

-

C10

0

4p

C32

7*

R39

2

22k

R66

100k

L31

XF4

R39010k

GND

INoUT

R386

0

R39

310

k

C8

0.22

u35

R38

10

C1130.01u

C316*

XF1

C13

0

4p

D10DAN235K

C13

6

3p

L27

R30

210

0

C39

147

0p

R43

0

L28

R99

1.5k

C30

60.

01u

C10

*

R101

22

C21

0

22u1

6

D12

1SS

355

C65

*

L32

R38

9*

C11

6

0.01

u

C148

0.01u

R63

470

C13

9

68p

C120

0.01u

L3844.85MHz

XF3

R34 1k

C119

0.01u

C20

9

0.01

u

C13

1

68p

C38

847

0p

C93

68p

C11

7

1000

p

L363

*

R10

0

47

C1090.01u

R10

1k

C40

4

0.1u

C98

18p

C12

5

3p

C91

0.01

u

L35

120n

R187

0C

5410

00p

C10

7*

R18

10k

R38

40

R38

8*

C38

7

0.1u

1O

UT

0

2V

CC

RF

3V

PR

F

4C

PoR

F

5G

ND

6fin

RF

7fin

RF

8G

ND

9O

SC

x

10D

SC

in

11F

o/R

D

12R

E_E

N13

IF_E

N

14C

LOC

K

15D

ATA

16LE

17G

ND

18fin

IF

19fin

IF

20G

ND

21C

PoI

F

22V

PIF

23V

CC

IF

24O

UT

1

C12

8

2.5p

L43

C33

347

0p

L42

10u

C12

1

3p

R92

680

C11

8

0.01

u

R190

0

L49*

R96 47

L41

C14

1

3p

C40

30.

1u

C94 4p

L37

10u

C151

0.01u

C38

9

0.1u

R116

0

L44

C321*

R32

100

R382

0

C53

10u1

0

R30

100

L3944.85MHz

R38

50

R19

10k

C11

4

1000

p

XF2

C14

0.1u

35

L34

120n

L18

10u

C34

6

120p

11A

21Y

32A

42Y

53A

63Y

7G

ND

84Y

94A

105Y

115A

126Y

136A

14V

CC

C313*

R38

01k

R10

2

68

C10

1

0.02

2u

C62

0.01

u

C38

5

470p

L36

10u

2p

C67

5p

NO

C327

NO

120p 1p

C321

22n

4p

C107 C313

12n 8p

4p12n

NARROW

L49 C316

15n

2p

22n

R389

15n

R388

12n

220n

L363

12n

82n

8p

120p

2p

C65

2p6p

6p

6p

L11

6p

150

8p82

82

100

8p

L364

RF SW

UNLOCK SW

NO

NO

NO NO NO

0-12 K3

2-70

0-11

K2,E

K

X55-308X-XX

8C1 8C18C 18C18C1 8C 1

8C N

8C W

5C1

XF4

XF3

2SC4226-A(R24)Q6

BUFFER AMP

IC19TC74HC14AF-F

INVERTER

WIDE

D9B30-2130-05

INDICATOR

IC302LMC7101BIM5

UNLOCKDETECTOR

IC301LMX2352TMX/NP

PLL

8C2

CPDP

CVRCVREPR

LDRREF IN

2.2u10V

2.2u6.3V

C10

2.2u10V

IC13NJM78L08UA-ZB

AVR

2SC4081(R)Q33

REF AMP

2SC3357-AQ25

IF AMP

2SC3357-AQ24

IF AMP

2SK1824-AQ30

DC SW

W:0VN:1V

W:0VN:7.1V

8.0V

W:0VN:8.0V

8.0V

W:7.1VN:0V

4.3V

4.0V

0.9V

W:1.0VN:0V

0V

F G H I J

X55-308 2/4

RX UNIT (X55-308X-XX)

Page 70: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

C10

6

47u1

0

R60

100

L20

1u

1 FSADJUST

2 REFIN

3 REFoUT

4 DVDD

5 DGND

6 MCLK

7 SCLK

8 SDAT 9FSYNC

10FSELECT

11PSEL1

12PSEL0

13AGND

14IoUT

15AVDD

16CoMP

R14

5

68

C179

220p

R11

1

2.2k

C13

4

22u1

6

C15

8

0.01

u

R10

8

47k

C29

0.01u

R13

1.8k

C15

3

1000

p

R12

0

0

R12

8

68

R118

100k

C16

4

1000

p

R14

9

150k

R13

8

68

CF3L72-1027-05IN oUT

R84

10k

R103

100

R10

9

22k

R18

6

1k

C10

5

47u1

0C

108

0.01

u

C19

1

0.1u

R152

10k

C18

9

27p

C19

6

10u1

0

C12

20.

1u

C163

9p

L48

10u

R12

4

100

Q22DTC114EUA

C13

5

0.01

u

C11

1

0.1u

C168

0.01u

C9

1uR

184

1k

R197

15k

R134

1.5k

R158

4.7k

C17

1

0.47

u25

C17

2

0.1u

C12

4

22u1

6

C37 0.01u

C20

1000p

R14

2

22

R198

1k

R126

18k

R97 22

R15

1.8k

R13

6

47

C16

0

0.1u

R19

93.

9k

R121

100k

C16

1

1000

p

R10

7

560k

C11

5

0.1u

C56 10u10

IC3BU4094BCFV

1S

TR

B2

DAT

A3

CLK

4Q

15

Q2

6Q

37

Q4

8V

SS

9Q

S

10Q

’S

11Q

8

12Q

7

13Q

6

14Q

5

15O

E

16V

DD

IC16NJM78L05UA-ZB

GND

INoUT

R12

7

680

R13

7

22

C17

6

0.1u

R13

1

47

R78

10k

C180

0.1u

R15

6

3.3k

R85

1.8k

R141

680

R76

1.8k

CN5

1 2

C123

5600p

R139

100

R19

6

220

C11

2

0.1u

C129

0.039u

R146

680R12

3

680

C127

5600p

2SB1386(R)Q16

C48

10u10

C76

10p

R14

3

68

R13

2

10k

C15

7

1000

p

R11

4

390k

Q29DTC114EUA

Q19DTC114EUA

R193

22

L47

120n

R130

100

R129

1.5k

C17

4

1000

p

C11

0

0.01

u

1oS

CIN

2oS

CO

UT

3V

CC

1

4M

IXoU

T

5V

CC

2

6IF

1IN

7D

EC

1

8IF

1oU

T

9N

DP

S

10IF

2IN

11D

EC

2

12G

ND

213

IF2o

UT

14Q

UA

D

15A

FoU

T

16N

-RE

C

17F

ILIN

18F

ILoU

T

19N

-DE

T

20C

-DE

T

21R

SS

I

22V

RE

F

23G

ND

1

24M

IXIN

CN4

1 2

R19

5

330

C19

5

1000

p

C13 1000p

C16

9

10u1

0

CF5L72-1029-05

X1

44.4

MH

z

R69 0

D11

DAN202U

C21

3

2.2u

10

2SB1386(R)Q20

R81

10k

C12

6

0.1u

L51

1u

C15

9

0.01

u

R119

39k

R14

0

100k

C13

3

0.01

u

C178

220p

C14

5

0.02

2u

C15

6

1000

p

C166

8p

C16

2

0.01

u

R122

68

CF1L72-1027-05IN oUT

R13

3

68

C14

3

0.01

u

L53

CP11k

C18

5

0.1u

C138

0.033u

Q18DTC114EUA

L33 100u

C15

4

0.01

u

R15

4

22k

L46

10u

C228

0.1u

C226

0.01u

C193

68p

R11

5

2.2k

R135

10kGND

IN oUT

IC2NJM78L05UA-ZB

GND

INoUT

C14

2

0.1u

C15

5

22p

R10

6

2.2k

C22

9

0.1u

1AoUT

2A-IN

3A+IN

4GND

5B+IN

6B-IN

7BoUT

8V-

C14

0

0.1u

35

R159

2.7k

2SC4081(R)Q26

L45

120n

L55

100u

L56

10n

L24

100u

8CW

SHIFT REGISTER

SQ SW

AVR

8C1

8C2 8C28C1

AVR

8CN

8CN

8CW

SQ SW

8C1

5C 1 5C1

5C1

8C 2

2SC3357-AQ32

IF AMP

Q16,18-20,22

DC SW

IC20AD9835BRUZ

DDS

2SC3357-AQ31

IF AMP

2SC4081(R)Q28

SQ AMP

IC5NJM2904E-ZB

DC AMP

IC7TA31137FNG

FM IF IC

8C2

CVREPRCPDPLDRREF IN

IC4TA7808SQ

AVR

5C1

RSSI

CP

CK

DP

CVREPR

ESRDT

LDRREF IN

2SC4081(R)Q39

BUFFER AMP

Q342SJ106-F(GR)

SQ SW

ACTIVEFILTER

W:0VN:1.0V

W:1VN:0V

W:0VN:7.1V

W:7.1VN:0V

W:8VN:0V

W:0VN:4V

W:0VN:8V

W:5.0VN:0V

5.0V 7.4V

5.8V

4.0V

1.2V

1.2V

7.5V5.0V

8.0V

SQ CLOSE:7.9VSQ OPEN:5.5V

SQ CLOSE:0VSQ OPEN:2.4V

7.8V

3.4V

W:0VN:1V

W:0VN:5V

W:8.0VN:0V

X55-308 3/4

K L M N O

RX UNIT (X55-308X-XX)

Page 71: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

71

C21

1

8p

R16

31k R169

10k

R28*

1oS

CIN

2oS

CO

UT

3V

CC

1

4M

IXoU

T

5V

CC

2

6IF

1IN

7D

EC

1

8IF

1oU

T

9N

DP

S

10IF

2IN

11D

EC

2

12G

ND

213

IF2o

UT

14Q

UA

D

15A

FoU

T

16N

-RE

C

17F

ILIN

18F

ILoU

T

19N

-DE

T

20C

-DE

T

21R

SS

I

22V

RE

F

23G

ND

1

24M

IXIN

R75

100k

R16

8

1.2k

C14

6

0.01

u

R27*

R22 1k

R14

8

5.6k

R12

5

100

CF4L72-1028-05IN oUT

X2

44.4

MH

z

R18

2

100k

C17

3

0.1u

R161

2.7k

C1529p

1 AoUT2 A-IN3 A+IN4 V- 5

B+IN

6B-IN

7BoUT

8V+

Q37DTC114EUA

R153

10k

R14

4

100k

R47

100k

R31*

C18

6

0.1u

C17

5

1000

p

C19

7

1000

p

R17

6

100k

R160

4.7k

R147

2.2k

R172

100k

C21

2

0.01

u

1AoUT

2A-IN

3A+IN

4V-

5B+IN

6B-IN

7BoUT

8V+

L52

R15

7

3.3k

C61

0.1u

R164

47kL3

0

1u

C16

7

0.1u

C181

220p

C60

0.1u

1IN

/oU

T

2oU

T/IN

3G

ND

4C

oNT

5V

CC

Q352SJ106-F(GR)

R165

47k

Q38DTC114EUA

R167

220k

CF2L72-1028-05IN oUT

1IN/oUT 2oUT/IN

3GND4CoNT

5 VCC

1AoUT

2A-IN

3A+IN

4V-

5B+IN

6B-IN

7BoUT

8V+

C19

2

0.1u

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

R14 56

R16

6

470k

R177

100k

R50

2.2k

R15

1

2.2k

C13

7

0.01

u

C188

1000p

C20

4

10u1

0

R174

10k

C201

0.1u

C187

1000p

R15

5

22k

C59

10u1

0

CN61 RA

2 RXG

3 DET

4 DEG

5 SC

6 RSSI

7 CK

8 DT

9 ESR

10 EVR

11 SCL

12 SDA

13 DP

14 CP

15 EPR

16 LDR

17 GND

18 CVR

19 NC

20 NC

21 B

22 B

23 B

24 NC

25 NC

26 NC

IC6BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD R170

100k

C19

8

10u1

0

R51

2.2k

C183

0.1u

R4

47k

CN7REF IN

R175

220k

C184

0.1u

C14

7

0.01

u

R19

2

100k

C17

0

10u1

0

C16

5

0.47

u25

C190

27p

R79

680k

1 VIN1

2 VoUT1

3 VoUT2

4 VIN2

5 VDD

6 LD

7 CLK

8 DI

9 VIN3

10 VoUT3

11 VoUT4

12 VIN4 13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

R16

21.

5k

C182

220p

R15

0

150k

C200

47u6.3

R171

1k

R17

8

100k

C17

7

0.1u

L54

1u

C13

2

0.1u

R3

47k

R83

680k

C14

4

22p

C15

0

47u6

.3

C202

0.1u

C194

22p

C19

9

47u6

.3

Q36DTC114EUA

R173

10k

C14

9

1000

p

C20

347

u4

R28

0

0

0

R27

DESTINATION MARK

R31

SQ SW

CO

NT

RO

L U

NIT

(X

53-4

210-

10)(

A/4

)-C

N1

2-70

0-12

0-11 NO

NO NO

NO

NO

NO

K3

K2,E

K

X55-308X-XX

TX

UN

IT

(X56

-)(A

/3)-

CN

102

IC21TC7S66FUF

ANALOG SW

MULTIPLEXER

IC9M62364FP-F

D/A CONVERTER

5C1

CVREPRCPDPLDRREF IN

ESRDTCKRSSI

CVREPR

CPDP

LDRREF IN

ESRDTCK

RSSI

SQ SW

Q36-38

IC18TC7S66FUF

ANALOG SW

IC15NJM4558E-ZB

AF AMP

IC12NJM4558E-ZB

AF AMP

IC8TA31137FNG

FM IF IC

R23

1.2k

IC10AT24C08A10SU18

EEPROM

IC11NJM4558E-ZB

AF AMP

W:1VN:0V

W:5VN:0V

4.4V

1.8V

4.4V

4.4V

SQ CLOSE:4VSQ OPEN:0V

TSRQP

1

2

3

4

5

6

7

X55-308 4/4

Note : The components marked with a dot ( ) are parts of layer 1.RX UNIT (X55-308X-XX)

Page 72: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

72

C51

2

470p

D6

1SV

283F

C502 470p

R11

3

120

C591 470p

C589 470p

L101

1u

R12

1

0

R11

5

100

R105

330

D4

1SV283F

C31

0.01

u

R512 0

C23

2

2.2u

16

C23

6

1.0u

16

0.1u

C5

8p

TC

2

8p

R16

10k

C10

3

0.01

u

L6 4.5T

R26

22

R227

47k

C510 0.1u

L7 10u

470p

R17

47k

C25 8p

C28

1

1000

p

R22

5

10k

C593 0.1u

R10 0

R501 100

R12

9

1k

TC

1

8p

R10

2

47k

C27

5

1000

p

R13

470

R511 0C

215

0.01

u

R6

100k

C34

0.01

u

R101

1M

C22

2

270p

CN101EXT REF IN

C225

1000p

C35

10p

D20

3

1SV

283F

C277

56p

R61 470

R581

0

C27

2

47p

R5890

R5

100k

0

D1

1SV

283F

R507 100

R228

100k

2SC3722K(S)Q3

L1

10u

R10

7

470

C592 470p

R506 100

R7

33k

C10

56p

R515 0

L2

10u

C206 270p

C24

0.01

u

C8

47p

R15

470

R86

100

R52

330

L104

100u

C27

4

0.1u

C32

22u1

6

R517 0

R206

470k

R11

2

18k

C26

0

10p

X201

19.2MHz

C21

1

1000

p

C68

0.01

u

C20

1000

p

C16

1000p

L106 1u

C533 470p

R8

27k

R14

10k

R21

3

100

R10

6

100

C6

1000

p

R47 0

C14 1p

C19

1000

p

R89

2.2k

C506 470p

R210

0

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V-

C26

1000

p

D204

1SS355

C17

10p

C26

1

10p

C21

1000

p

100

C10

2

0.22

u35

L201

470n

R63

100

C52

947

0p

R21

6

100k

R10

8

18k

R505 100

C106

470p

L4 10u

R27

100

C27

1p

R23

18k

C28

6

150p

C7

12p

L5 5.5T

R54 0

C505 0.1u

R51

330

C29

470u

16

R1

220

C18

7

1000

p

C504 470p

L11

100n

C11

1

1u16

C214

10p

R11 0

C1

1000

pC

104

0.01

u

C280

1000p

C203 0.01u

C285

33p

R21

7

220

R24

100

C10

7

22u1

0

C110

0.01u

R62

100k

D5

1SV

283F

R9

100

C21

6

0.01

u

100

R20

10k

R124

0

R516 0

C26

4

56p

C2

1000

p

R114

0

R212 470

C27

8

1000

p

C508470p

C15

1000

p

R22

10k

C30

1000

p

C21

9

100p

R218

470C

271

470p

C12 1p

R2

220

R21

470

C101

0.01u

C22

1000

p

470p

D3

1SV283F

C507 220p

C115

0.01u

C28

1p

C213

0.01u

C21

2

150p

L207 1u

100

D2

1SV

283F

470p

C207 270p

L205

470n

R224

22k

R587

0

R513 0

XF210L71-0529-05

C501 470p

2SC4215-F(Y)Q202

R5840

R510 0

2SK508NV(K52)Q2

C239 1000p

C33

1000

p

R509 1k

R585 0

R21

4

820

R12

100

2SC4215-F(Y)Q201

C23 8p

R64

470

R19

47

C511 470p

R25

4.7k

C22

1

270p

R12

3

10k

1k

C9

12p

R18

10k

L203

1.5u

IC501LMX2352TMX/NP

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

0

5B

Q5

DP

CP

150MHz-174MHz

MAIN PLL

CV

19.2MHz OSC

MOD

CVT

MOD

8C

SUB MOD

TX UNIT (X56-3140-10)(A/3):K,K2,K3

VCO-B

VCO-ADC SW

VCO OSC

DC SW

FREQ. CONTROL

D2,4

MODULATION

MODULATION

8B

BUFFER AMP

VCOOSC

REF

Q4

CP5C

DP

19.2MHz

Q1

CP

19.2MHz

DP

5C

Q4DP

19.2MHz

CP5C

Q4

Q5

5B

8C

MOD

CVT

CURRENTSTEERING

MODULATION

136MHz-150MHz

D1,3

FREQ. CONTROL

2SC4215-F(Y)Q102

BUFFER AMP

2SC3722K(S)Q4

DC SW

2SC3722K(S)Q7

RIPPLEFILTER

2SK1824-AQ5

MAIN PLL

IC502LMX2352TMX/NP

SUB PLL

2SC4215-F(Y)Q106

DOUBLERD101

1SV128-F

RF SW

D1031SV128-F

RF SW

2SC3120-FQ6

BUFFER AMP

VCO OSC

2SK508NV(K52)Q1

IC109NJM2904E-ZB

BUFFER AMP

C588

C586

R583

R504

R502

C587

R503

C584

R580

R582

2SC4215-F(Y)Q109

RF SW

A:6.7VB:6.5V

A:1.7VB:0V

A:0VB:1.7V

A:6.5VB:6.7V

2.0V

5.9V

7.6V

0.8V

5.9V

6.7V

0.3V

3.3V

4.2V

4.5V

2.2V0.8V

A:136-149.995MHzB:150-174MHz

A B C D E

1

2

3

4

5

6

7

X56-314 1/4

Page 73: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V+

R117

100

GINOUT

C27

0

0.01

u

C210

82p

C13

1000

p

C29

6

10p

C25

8

0.01

u

C74

47p

R12

2

100

2SK1824-AQ206

C29

3

1000

p

C135 10u10

R13

1

1kC

233

18p

C17

3

0.01

u

C29

7

10p

R59

2

15k

C42

0.01

u GINOUT

C20

1

15u1

0

C59

5

0.01

u

C25

4

100p

C23

8

1000

p

C256

1000p

R11

9

10k

C72

0.01u

C62

470pR591

10k

C26

8

10u1

0

C119

220p

IC202AD9835BRUZ

1 FSADJUST

2 REFIN

3 REFoUT

4 DVDD

5 DGND

6 MCLK

7 SCLK

8 SDAT 9FSYNC

10FSELECT

11PSEL1

12PSEL0

13AGND

14IoUT

15AVDD

16CoMP

1O

UT

PU

T

2V

+

3IN

PU

T+

4IN

PU

T-

5V

-

C17

0

0.1u

R251100

R33

10k

R13

4

1k

C284

0.01u

R26

4

27k

R240 100

D205HSM88AS-E

R26527k

C11

4

0.01

u

R35

1.8k

C23

5

27p

C11

2

1000

p

C28922p

R25

31k

C14

5

0.01

u

C20

8

10u1

0

L244

68n

R140 39k

L24610u

R28

10k

C18

8

1000

p

1 AoUT2 A-IN3 A+IN4 V- 5

B+IN

6B-IN

7BoUT

8V+

C73

0.01u

R19

0

0

C76

47p

C26

2

0.01

u

R18

5

100

R50 47

0

R31

100

R590

10k

R267

10k

C282

0.01u

2SC4215-F(Y)Q242

C12

7

47u1

0

C26

7

0.02

2u

L503

10u

C10

5

1000

p

R588

0C

209

1u25

R25

0

220

D202

1SV283F

C279

1000p

R55 1k

C2981000p

R27

2

10kC240 10u10

C63

470p

C17

4

47u1

0

C10

0

7p

R32

220

C24

6

270p

2SC4215-F(Y)Q240

C25

1

1000

p

R18

0

0

L24310u

X101

L77-1735-25

C288

1000p

C41

0.1u

C13

8

47u6

.3

R27

5

56

R59

3

10k

R132

120k

C12

5

0.01

u

C250 0.01u

D20

1

1SV

283F

R109

0

C16

8

22u1

6

C70

4.7u

16

L501

10n

R65

470k

L102

220n

R226 120k

Q12DTC114EUA

C29

2

0.01

u

D12

1SS355

D51B30-2130-05

Q8IMH5A

C24410u10

R144 330k

R22

1

56

D50

3

1SS

355

1 INB2 INA3 VSS 4

oUTX

5VDD

R26

2

100

C22

0

0.01

u

GIN OUT

C136 47u6.3

R11

8

10k

C37

1000

p

C38

47p

C14

7

0.1u

C40

22u1

6

C12

3

0.1u

R202

0

R24

2

47k

C265

0.1u

R133 100k

R13

033

0

R120 1k

C248 1000p

R87

100

GINOUT

R18

1

0

C139 1u16

C13

1

10u1

0

R14

1

1k

C47

0.01

u

C11

0.01

u

C253

1000p

C13

0

0.01

u

L247

100u

L240

100u

C2911000p

L209

100u

R14

7

1k

C294

0.01u

C116 0.01u

R20

4

27k

R27

4

100

C295220p

C65 100p

R24

9

47k

C66

1000p

C26

3

22p

C26

6

0.02

2u

D50B30-2130-05

CF1L72-1029-05

R29

18k

R13

8

12k

R263

47k

L248

470n

C218

100p

R25

4

0

R209

10k

R10

0

10k

R88

18k

R19

1

0

C28

3

270p

R56 1k

GINOUT

C46

0.1u

C29010p

C28

7

100p

R244

3.9k

R26

8

15k

R20

5

47k

2SK1824-AQ18

GINOUT

R21

9

10k

C11

3

10p

C245

0.01u

C17

5

0.1u

R34

2.2k

R27

3

47k

C75

47p

C11

8

220p

L204

100u

R245 100

R19

2

0

L241

100u

L502

10n

C16

9

0.01

u

C39

470p

R247

100

C12

8

0.1u

R39

330

R68

220k

D11

1SS

355

C25

7

220p

2SK1824-AQ17

L105

100u

R51

8

100

C36

10p

R67

120k

L242

10u

C60

470p

C71

0.01

u

R25

2

100

C143

4p

R30

10k

C59

4

0.01

u

C23

7

1000

p

C13

3

10u1

0

R26

627

k

C12

6

0.01

u

C45

22u1

6

C64

100p

R203

27k

C252

1000p

L103 100u

R13

9

10k

8A8A

CLK

8A

LEN

DAT

MOD MOD

Q1

CVT

5B8C

5A

Q4

5C

DP

UL

CP

MAIN PLL

SUB PLL CV

20MHz

ULSUB PLL

19.2MHz

STD MOD

5C 8C

5B

CVT

8B

Q1

SUB MOD

8B

8A

BUFFER AMPBUFFERAMP

DDS

8T

INT-REF VCCRF DETECTOR

REF

DTE

DPQ4

CP

5C

REF

SUB MOD

Q5

8C5B

UNLOCK SW

DC SW

CP

Q4DP

5C

Q5

Q1

CVT5A

B5B

LDT

8C

Q2

SUB MOD

INT-REF VCC INT-REF VCC

CURRENTSTEERING

D11,12Q8,11,12

DC SW

IC105NJM4558E-ZB

AF AMP

IC204NJM2903M-ZB

COMPARATOR

2SC4215-F(Y)Q205

RF AMP

FREQ. CONTROL

D201,202

2SC3120-FQ9

RF AMP

DC SW

Q17,18

IC200TC4S81F-F

AND GATE

2SK1824-AQ203

DC SW

D7

1SV128-F

RF SW

2SB1386(R)Q11

2SC3120-FQ107

RF AMP

IC305LMC7101BIM5

UNLOCKDETECTOR

LOCKINDICATOR

D50,51

2SC4215-F(Y)Q241

RF AMP

R26

0

18k

L210

100u

2SK302-F(Y)Q15

BUFFER AMP

IC110NJM78L05UA-ZB

IC103NJM78L05UA-ZB

AVR

AVR

IC2NJM78L08UA-ZB

IC205NJM78L05UA-ZB

IC108NJM78L08UA-ZB

IC1TA7808SQ

AVR

AVR

AVR

AVR

2.9V

0.8V

4.3V

4.3V

3.9V

8.0V

5.0V 8.0V

8.0V 5.0V

0V

2.0V 2.0V

2.1V

7.0V

4.0V

1.2V

1.2V

4.3V

0.6V

4.4V

7.2V

0.8VRef INT:0VRef EXT:3.4VRef INT:2.2V

Ref EXT:1.9V

Ref INT:7.8VRef EXT:0V

Ref INT:0VRef EXT:7.8V

6.0V

5.0V

F G H I J

X56-314 2/4

TX UNIT (X56-3140-10)(A/3):K,K2,K3

Page 74: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

R42 47

R182

4.7k

C241

1000pR137

10k

C54

470p

2SK2596-EQ14

R57

470

Q21UMC5

D20

6

MIN

ISM

DC

0750

2F

C8010u10

R27

122

0

(1/2

W)

C77

0.01

u

C24

7

1u16

C56

470p

C249

33p

R49

12k

C55

470p

C82

10p

C16

7

1000

p

R48

10k

R183

47k

C17

1

1000

p

IC4BU4094BCFV

1STRB

2DATA

3CLK

4Q1

5Q2

6Q3

7Q4

8VSS

9QS

10Q’S

11Q8

12Q7

13Q6

14Q5

15OE

16VDD

R222

10k

C22

3

270p

C186

0.1u

L13

10n

L14

47n

R37

15k

C141

1000p

C51

100p

R18

6

4.7k

IC3 M62364FP-F

1 VIN1

2 VoUT1

3 VoUT2

4 VIN2

5 VDD

6 LD

7 CLK

8 DI

9 VIN3

10 VoUT3

11 VoUT4

12 VIN4 13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

R41

1.5k

R77

470

C17

2

1000

p

R14

6

100

R74

220

L208

C78

2200

p

R78

330

1234567G

ND

8 9

10 11 12 13 14V

CC

R45

0

CN2

PAB1

B2

B3

B4

H/L5

FWD6

REV7

PC8

PRT9

GND10

8T11

AUX12

C14

0

0.01

u

CN1 DRV OUT

R21

5

120k

R15

1

6.8k

C26

9

0.01

u

C16

6

100p

R79

330

C43

470p

C13

2

1000

p

R211

470k

D52B30-2048-05

R150

4.7k

R40

100

Q114DTA114EUA

CN102 REF OUT

L202

C24

2

10p

R27

022

0

(1/2

W)

C4

470pR

145

100

C259

0.01u

C53

470p

R3 47k

C50

470p

XF211L71-0529-05

IC100TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

R25

715

0

(1/2

W)

C10

9

1000

p

C10

8

1000

p

R208

100k

Q207DTC114EUA

C24

3

1000

p

C79

1000

p

R44

39k

C25

5

1000

p

R69

56k

CN3MOD1

TO2

MIG3

EVT4

EST5

DT6

CK7

NC8

NC9

SDA10

SCL11

LDT12

PRT13

CP14

NC15

DP16

EXR17

CVT18

REV19

FWD20

GND21

PAG22

B23

B24

B25

PAB26

R243

10k

1A

oUT

2A

-IN

3A

+IN

4G

ND

5B

+IN

6B

-IN

7B

oUT

8V

-

R38

18k

R241

47k

R149

10k

R85

100

C3

470p

R46 10

(1/2

W)

R269

1k

R70

56k

C52

1000p

R14

3

47k

R73

100k

C12

4

47u1

0

R4 47k

R72

100

CN104

GND1

FB2

L15

100n

C59

1000

pR

142

100k

C61

1000

p

C16

5

100p

R184

15k

C58

1000

p

1A

oUT

2A

-IN

3A

+IN

4V

-5

B+

IN

6B

-IN

7B

oUT

8V

+

R25939

(1/2W)

R220

47k

2SC4215-F(Y)Q115

L206

470n

2SC3356-AQ13

IC102TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

C22

4

270p

CN103

GND1

FB2

C57

10u6

.3

R71

470k

R223

15k R25

815

0

(1/2

W)

R36

4.7k

IC106AT24C08A10SU18

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

C13

4

1000

p

R43 1k

2SK1824-AQ208

C14

4

1000

p

8T

DTE

Q5

B

LDT

MIG

Q1

MIG

DTEVT

MOD

CK

TO8T

SCL

SDA

Q2

EXR

TO

DP

5B

CP

5C

CVT

INT-REF VCC

EST

CK

DT

EVT

MOD

Q5

CP

AUX

136MHz -174MHz

DP

H/L

CP

TO

VO

6

MIC

VO

5

EXT REF

VO6VO5

Q4

PAG

INVERTER

RF AMP

CO

NT

RO

L U

NIT

(X

53-4

210-

10)(

A/4

)-C

N2

CURRENTPROTECTOR

DC SW

DC SW

D/A CONVERTER

ACTIVEFILTER

AVR

SHIFTREGISTER

TX INDICATOR

8C

5C5C

Q4

DTE

REFREF

DC SW

RF AMP

RF AMP

8T

5B5BQ2

CVTCVTB5B8CQ1

5ALDT LDT

Q5

RX

UN

IT (

X55

-308

X-X

X)-

CN

7

Q6

IC107NJM4558E-ZB

AF AMP

IC206TC74HC14AF-F

INVERTER

EEPROM

RF AMP

2SK1824-AQ112

DC SW

Q110UMC5

DC SW

2SK1824-AQ113

DC SW

2SC4215-F(Y)Q108

IC203NJM2904E-ZB

DC AMP

TX:4.0VRX:0V

4.3V

2.7V

Lo TX:0VHi TX:5V

RX:0.2VTX:7.9V

TX:7.0VRX:0V

4.3V4.7V

0.6V

X56-314 3/4

K L M N O

TX UNIT (X56-3140-10)(A/3):K,K2,K3

Page 75: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

75

-t

-t

R600

0

R605

0

D30

5

DS

M3M

A1-

RP

B

R349

22k

R30

5

330

R36

0

330

TS301

S79-0470-05

R33427k

R32

7

330

Q305DTC114EUA

C34

00.

1u

C30

3

1000

p

CN301

R33

9

0

R34

0

1k

C336

4p

D30

8H

SM

88A

S-E

D304

1SS355

2SC

4081

(R)

Q30

1

C3421000p

R34

1

10k

C41

410

p

C32

8

1000

p

1

IN/O

UT

1

OU

T/IN

1

CO

NT

2

4

VS

S

5

IN/O

UT

2

OU

T/IN

2

CO

NT

1

8

VD

DTH301

50k

C35

0

1000

p

R343

1k

R410

10k

R33

0

12k

C32

3

1000

p

C30

7

10p

R316

47kC

330

1000

p

R34

547

k

C35

210

00p

R323

4.7k

R3372.7k

R318

4.7k

Q310FMW1

C32

9

0.01

u

2SB951A(Q)Q309

R357

1k

C345

0.68u20

C31

7

330u

25

R332

82k

R30

3

330

C31

6

15p

Q302IMH5A

R310220

(1/2W)

R322

10k

R32

55.

6k

CN3051

2

R35

610

0k

L305

110n

CN3021

PAB

B

B

B

H/L

FWD

REV

PC

PRT

GND

8T

12AUX

C34

310

00p

R321

4.7k

L30347n

R40

3

100k

Q308UMC5

C35

810

00p

C421

0.1u

D31

7

1SS

355

R344 4.7k

R33

8

0

C33

20.

1u

R30

81k

TH302

50k

CN308C3531000p

C34

9

1000

p

C314

1000p

D30

6H

SM

88A

S-E

R324

4.7k

C337

3p

R313

1k

C31

0

0.1u

R304

82

R35

047

k

R34

24.

7kC34

1

1000

p

C30

9

0.01

u

C31

3

1000

p

IC601RA07M1317M101

1R

FIN

2G

ATE

V3

DR

AIN

V4

RF

oUT

R40

0

10k

C35

14.

7u10

R315

1k

R32

8

270

R319

68k

Q307FMW1

CN307

R359

82

C34

410

00p

C32

7

1000

p

C32

0

470p

C33

910

00p

IC30

3O

P29

1GS

Z

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B8

+V

L30147n

R32

910

k

R333

47k

R306

10k

C321

470p

C30

8

330u

25

CN306

R311

47k

C30

50.

01u

C3460.1u

C322

470p

L30247n

R3483.9k

C33

5

1000

p

L306

D30

3

ER

ZV

14D

220

R30

010

0

R320

470k

Q313DTC114EUA

C334

0.47u25

D318

1SS355

C338

7p

C30

6

0.5p

CN3041

2

D50

0

MIN

ISM

DE

190F

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B

8

+V

J402

D30

7H

SM

88A

S-E

C333

0.1u

R314

100k

C30

447

0p

C35

4

1000

p

D31202CZ12(X,Y)F

Q312DTC114EUA R301

47k

C32

6

1000

p

R35

547

k

C32

5

1000

p

R35

4

47k

R34

7

10k

C33

110

00p

C318

1000pR

358

330

R32

6

10k

C31

147

u16

C31

5

33p

C30

1

330u

25

R33

5

1k

C35

7

0.1u

C35

5

0.1u

C32

4

1000

p

C31

2

33p

C31

9

470p

R34

61k

C34

8

1000

p

R317

47k

C302

1000p

R312220

(1/2W)

R331

22k

CN502

2

1

3

DESTINATION MARK

8B

OUT

POWERSUPPLY

DRV IN

12B

AUX

12B

+B

B

RF OUT

IN

GND

TX UNIT (X56-3140-10)(B/3):K,K2,K3

TX UNIT(X56-3140-10)(C/3):K,K2,K3

DC SW

DC SW

DC SW

CURRENTSTEERING

CURRENTSTEERING

CURRENTPROTECTOR

VOLTAGEREFERENCE

RF DETECTOR

RF DETECTOR

D306,308

DC AMP

DC SW

DC SW

SURGEPROTECTOR

REVERSEVOLTAGEPROTECTOR

CURRENTSTEERING

POWERMODULE

AN

ALO

G S

W

DC

AM

P/C

OM

PAR

ATO

R

DIFFERENTIAL AMP

Q307

D310

MINISMDC07502F

SURGEPROTECTOR

DIFFERENTIAL AMP

Q310

FBB

B

NC

GND

FB

GND

IC30

4T

C4W

66F

-FQ304

IMH5A

DC SW

IC302OP291GSZ

DC AMP

2SB951A(Q)Q306

DC AMP

L304L79-0558-05

DC AMP

Q301

RX:0VTX:6V

Hi:0VLo:5V

RX:0.2VTX:7.9V

11.0V

RX:0VTX:2.9V(H)

RX:0VTX:7.3V

RX:12.9VTX:12V

RX:0VTX:8V

RX:0VTX:0.3V

RX:0.3VTX:1.7V

RX:0.1VTX:0.2V

RX:0VTX:7.9V

RX:0VTX:0.7V

RX:13.6VTX:13V

TSRQP

1

2

3

4

5

6

7

X56-314 4/4

Note : The components marked with a dot ( ) are parts of layer 1.

Page 76: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

76

R61 470

R516 0

C12 1p

C10

2

0.22

u35

R47 0

R54 0

C27

5

1000

p

R12

9

1kC

33

1000

p

R21

6

100k

C21

5

0.01

u

R510 0

C27

8

1000

p

C214

10p

C14 1p

R582 0

R10

2

47k

R580 1k

C31

0.01

u

R14

10k

C7

12p

R26

22

L104

100u

R21

3

100

C586 470p

C115

0.01u

C10

7

22u1

0

R86

100

R5840

R587

0

C8

47p C35

10p

C27

4

0.1u

C593 0.1u C22

2

270p

L5 5.5T

R10

6

100

R12

3

10k

2SC4215-F(Y)Q201

C106

470p

C285

33p

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V-

L205

470n

D2

1SV

283F

C25 8p

C21

6

0.01

u

C510 0.1u

C10

56p

C589 470p

C15

1000

p

C23 8p

R502 100

C207 270p

R506 100

R63

100

R9

100

R19

47

R11

5

100

R12

1

0

R21

4

820

R114

0

D3

1SV283F

C23

6

1.0u

16

R51

330

R10

7

470

L1

10u

R5890

R503 100

D5

1SV

283F

XF210L71-0529-05L1

01 1u

C277

56p

C68

0.01

u

L6

4.5T

C533 470p

C26

4

56p

TC

1

8p

R23

18k

C507 220p

L11

100n

C592 470p

R101

1M

C18

7

1000

p

C511 470p

C239 1000p

R18

10k

R20

10k

C587 470p

C26

1000

p

C280

1000p

R105

330

C584 470p

R507 100

C27

1p

R5

100k

R13

470

R509 1k

R24

100C

19

1000

p

R10

8

18k

C24

0.01

u

R89

2.2k

R212 470

C9

12p

R511 0

TC

2

8p

C213

0.01u

C21

2

150p

C2

1000

p

C23

2

2.2u

16

C22

1000

p

R513 0

R218

470

R62

100k

R227

47kR206

470k

R7

33k

R21

470

D1

1SV

283F

L203

1.5u

R11

2

18k

C1

1000

p

C26

0

10p

C501 470p

R210

0

R6

100k

L207 1u

C504 470p

C29

470u

16

C591 470p

2SC3722K(S)Q3

L106 1u

R585 0

C28

1

1000

p

R12

100

L7 10u

R224

22k

C30

1000

p

IC304LMX2352TMX/NP

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

2SK508NV(K52)Q2

CN101EXT REF IN

L4 10u

R15

470

C10

4

0.01

u

R515 0

C27

2

47p

R8

27k

C101

0.01u

X201

19.2MHz

C26

1

10p

C203 0.01u

R10 0

2SC4215-F(Y)Q202

C506 470p

C508470p

2SC4215-F(Y)Q102 R52

330

C5

8p

R581

0

R17

47k

R228

100k

C206 270p

C28

1p

R2

220

C28

6

150p

R25

4.7k

C21

1

1000

p

L201

470n

D204

1SS355

R22

5

10k

D6

1SV

283F

L2

10u

D4

1SV283F

R501 100

C34

0.01

u

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

C21

9

100p

R16

10k

2SC3722K(S)Q4

C11

1

1u16

C10

3

0.01

u

D20

3

1SV

283F

C6

1000

p

R504 100

R22

10k

C21

1000

p

R11 0

C52

947

0p

R517 0

C22

1

270p

R505 100

C505 0.1u

R1

220

C20

1000

p

C502 470p

C225

1000p

C16

1000p

R512 0

R11

3

120

R21

7

220

C27

1

470p

R583 0

C32

22u1

6

R27

100

C51

2

470p

R64

470

R124

0

C110

0.01u

C17

10p

C588 0.1u

MOD

MODULATION

SUB MOD

DP

Q5

CP

19.2MHz

CP

BUFFER AMP

Q4Q4

136MHz-150MHz

DC SW

DC SW

150MHz-174MHz

TX UNIT (X56-3102-70)(A/3):E

5C

DP

5C

8C

DP DP

19.2MHz

Q5

MOD

REF

8C

MOD

5B

5B

19.2MHz OSC

CP

BUFFER AMP

CV

CP

VCOOSC

19.2MHzQ4

CVT

Q1

CVT

8B

5C

MAIN PLL

CURRENTSTEERING

MODULATION

2SC4215-F(Y)Q109

RF SW

2SC3722K(S)Q7

RIPPLEFILTER

VCO-B

VCO-A

2SK508NV(K52)Q1

VCO OSC

D1031SV128-F

RF SW

D1011SV128-F

RF SW

MAIN PLL

2SC4215-F(Y)Q106

DOUBLER

IC301LMX2352TMX/NP

SUB PLL

D2,4

FREQ. CONTROL

VCO OSC

MODULATION

2SC3120-FQ6

BUFFER AMP

2SK1824-AQ5

DC SWFREQ. CONTROL

D1,3

IC109NJM2904E-ZB

BUFFER AMP

A:0VB:1.7V

2.2V0.8V

4.5V

A:1.7VB:0V

3.3V

0.3V

6.7V

5.9V

0.8V

4.2V

7.6V

5.9V

2.0V

A:6.7VB:6.5V

A:6.5VB:6.7V

A:136-149.995MHzB:150-174MHz

A B C D E

1

2

3

4

5

6

7

X56-310 1/4

Page 77: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

C17

3

0.01

u

C24

6

270p

R25

2

100

R25

31k

R203

27k

R20

4

27k

C73

0.01u

R21

9

10k

R209

10k

R59

3

10k

C63

470p

C64

100p

R27

2

10k

GIN OUT

C29

7

10p

R59

2

15k

R27

5

56

R24

2

47k

L240

100u

C26

2

0.01

u

R14

7

1k

R28

10k

C60

470p

R32

220

R26

4

27k

C59

5

0.01

u

Q12DTC114EUA

2SK1824-AQ18

R12

2

100

C26

8

10u1

0

C10

5

1000

p

R26527k

R144 330k

C41

0.1u

C26

7

0.02

2u

C42

0.01

u

C284

0.01u

C135 10u10

C47

0.01

u

C12

3

0.1u

R26

0

18k

C11

2

1000

p

L247

100u

C250 0.01u

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V+

R87

100

L501

10n

C38

47p

C39

470p

R29

18k

R11

9

10k

1O

UT

PU

T

2V

+

3IN

PU

T+

4IN

PU

T-

5V

-

C23

7

1000

p

C75

47p

C29

3

1000

p

R133 100k

L24610u

L204

100u

R30

10k

C62

470p

C76

47p

C18

8

1000

p

C25

7

220p

R26

8

15k

C218

100p

R65

470k

1 AoUT2 A-IN3 A+IN4 V- 5

B+IN

6B-IN

7BoUT

8V+

D51B30-2130-05

C13

0

0.01

u

R26

2

100

C28

7

100p

C25

8

0.01

u

C291

1000p

R117

100

R18

1

0

C13

1000

p

R10

0

10k

C46

0.1u

2SC4215-F(Y)Q242

C45

22u1

6

X101

L77-1735-25

C70

4.7u

16

R14

1

1k

R132

120k

C240 10u10

R140 39k

C24410u10

R13

8

12k

C59

4

0.01

u

D205HSM88AS-E

R13

1

1k

CF1L72-1029-05

C20

8

10u1

0

C11

4

0.01

u

C27

0

0.01

u

C14

5

0.01

u

C253

1000p

GINOUT

C40

22u1

6R

249

47k

C74

47p

R51

8

100

C265

0.1u

C294

0.01u

R22

1

56

R26

627

k

C12

5

0.01

u

IC200TC4S81F-F

1 INB2 INA3 VSS 4

oUTX

5VDD

R109

0

R245 100

C139 1u16

C71

0.01

u

C119

220p

D11

1SS

355

C143

4p

R34

2.2k

C22

0

0.01

u

L24310u

C65 100p

C248 1000p

L210

100u

C23

5

27p

R27

4

100

GINOUT

C116 0.01u

R13

9

10k

C12

6

0.01

u

C10

0

7p

2SK1824-AQ206

C25

4

100p

R591

10k

R588

0

R247

100

C13

1

10u1

0

R226 120k

C17

4

47u1

0

R27

3

47k

R20

5

47k

L502

10n

C252

1000p

R35

1.8k

C13

8

47u6

.3

C282

0.01u

C16

8

22u1

6

C12

8

0.1u

C17

5

0.1u

Q8IMH5A

R19

2

0

R120 1k

C29010p

C26

6

0.02

2u

C295220p

R19

1

0

L241

100u

R251100

C245

0.01u

R13

4

1k

C17

0

0.1u

R19

0

0

R240 100

C23

8

1000

pR

67

120k

L102

220n

L244

68nL1

05

100u

R68

220k

D12

1SS355

2SC4215-F(Y)Q240

C16

9

0.01

u

C11

0.01

u

R50

470

R263

47k

C279

1000p

L103 100u

C28922p

C11

3

10p

GINOUT

C256

1000p

L248

470n

R31

100

GINOUT

D50B30-2130-05

L242

10u

C14

7

0.1u

R33

10k

D50

3

1SS

355

C20

9

1u25

R202

0

R590

10k

R244

3.9k

C288

1000p

R25

0

220

C20

1

15u1

0

C36

10p

2SK1824-AQ17

D202

1SV283F

C12

7

47u1

0

C23

3

18p

2SB1386(R)Q11

C210

82p

C25

1

1000

p

R13

033

0

R18

5

100

L209

100u

GINOUT

C11

8

220p

R18

0

0

C136 47u6.3

R267

10k

C26

3

22p

D20

1

1SV

283F

C28

3

270p

C72

0.01u IC202AD9835BRUZ

1 FSADJUST

2 REFIN

3 REFoUT

4 DVDD

5 DGND

6 MCLK

7 SCLK

8 SDAT 9FSYNC

10FSELECT

11PSEL1

12PSEL0

13AGND

14IoUT

15AVDD

16CoMP

R11

8

10k

R88

18k

C13

3

10u1

0

R39

330

C37

1000

p

C29

6

10p

C66

1000p

L503

10u

R25

4

0

R55 1k

C2981000p

C29

2

0.01

u

R56 1k

MOD

Q4

5A

INT-REF VCC

SUB MOD

8A

5B

UNLOCK SW

5C

Q4

MAIN PLL

REF

DP

BUFFERAMP

SUB PLL

5B

CLK

8A

5C

INT-REF VCC

MOD

STD MOD

B

8C

CVT

DDS

8B

8A

CP

INT-REF VCC

Q4

REF

5B

8C

5C

5B

DTE

Q17,18

UL

AND GATE

CVT

UL

SUB MOD

CP

CVT

CP

BUFFER AMP

20MHz

8A

SUB PLL CV

Q1

SUB MOD

Q2

Q5

DC SW

Q1

8C

DAT

DP

5A

19.2MHz

Q1

DP

8C

D50,51

RF DETECTOR

LOCKINDICATOR

8T

LEN

5C

Q5

8B

LDT

DC SW

2SK302-F(Y)Q15

BUFFER AMP

FREQ. CONTROL

D201,202

2SK1824-AQ203

DC SW

DC SW

Q8,11,12

IC105NJM4558E-ZB

AF AMP

IC204NJM2903M-ZB

COMPARATOR

D11,12

CURRENTSTEERING

2SC3120-FQ9

RF AMP

2SC3120-FQ107

RF AMP

IC305LMC7101BIM5

UNLOCKDETECTOR

IC110NJM78L05UA-ZB

AVR

IC205NJM78L05UA-ZB

IC108NJM78L08UA-ZB

AVR

AVR

IC103NJM78L08UA-ZB

AVR

D7

1SV128-F

RF SW

IC2NJM78L08UA-ZB

AVR

2SC4215-F(Y)Q241

RF AMP

2SC4215-F(Y)Q205

RF AMP

IC1TA7808SQ

AVR

Ref INT:0VRef EXT:3.4V

Ref INT:0VRef EXT:7.8V

0V

0.6V

0.8V

8.0V

5.0V

7.2V

2.0V

Ref INT:2.2VRef EXT:1.9V

4.0V

4.3V

3.9V

4.3V

4.3V

8.0V

1.2V

0.8V

5.0V

7.0V

Ref INT:7.8VRef EXT:0V

1.2V

4.4V

2.9V

8.0V

2.1V

2.0V

5.0V

6.0V

F G H I J

X56-310 2/4

TX UNIT (X56-3102-70)(A/3):E

Page 78: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAM

C57

10u6

.3

R77

470

C58

1000

p

C8010u10

C16

6

100p

C54

470p

L14

47n

IC102TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

IC3 M62364FP-F

1 VIN1

2 VoUT1

3 VoUT2

4 VIN2

5 VDD

6 LD

7 CLK

8 DI

9 VIN3

10 VoUT3

11 VoUT4

12 VIN4 13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

C14

0

0.01

u

R42 47

R184

15k

R4 47k

C43

470p

2SK2596-EQ14

CN1 DRV OUT

CN102 REF OUT

R182

4.7k

R48

10k

R79

330

R37

15k

2SC4215-F(Y)Q115

C50

470p

C52

1000p

CN104

GND1

FB2

L202

R14

3

47k

CN2

PAB1

B2

B3

B4

H/L5

FWD6

REV7

PC8

PRT9

GND10

8T11

AUX12

R25939

(1/2W)

R18

6

4.7k

C14

4

1000

p

R70

56k

C24

7

1u16

R27

122

0

(1/2

W)

Q21UMC5

R211

470k

R44

39k

IC100TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

R38

18k

R41

1.5k

R149

10k

R40

100

C13

2

1000

p

C79

1000

p

D52B30-2048-05

C61

1000

p

C4

470p

R269

1k

Q110UMC5

R14

2

100k

C259

0.01u

1A

oUT

2A

-IN

3A

+IN

4G

ND

5B

+IN

6B

-IN

7B

oUT

8V

-

R73

100k

CN31

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

XF211L71-0529-05

R150

4.7kR43 1k

C22

3

270p

R223

15k

C10

8

1000

p

R137

10k

C17

1

1000

p

2SC3356-AQ13

C24

2

10p

R78

330

R241

47k

R27

022

0

(1/2

W)

C17

2

1000

p

IC4BU4094BCFV

1STRB

2DATA

3CLK

4Q1

5Q2

6Q3

7Q4

8VSS

9QS

10Q’S

11Q8

12Q7

13Q6

14Q5

15OE

16VDD

R25

715

0

(1/2

W)

C56

470p

R25

815

0

(1/2

W)

CN103

GND1

FB2

R220

47k

R45

0

C249

33p

R14

5

100

R21

5

120k

1234567G

ND

8 9

10 11 12 13 14V

CC

C24

3

1000

p

C12

4

47u1

0

R243

10k

R49

12k

D20

6

MIN

ISM

DC

0750

2F

R183

47k

C51

100p

R46 10

(1/2

W)

L15

100n

R36

4.7k

R71

470k

L208

C241

1000p

R222

10k

R69

56k

C77

0.01

u

R3 47k

C53

470p

R72

100

C59

1000

pC

269

0.01

u

C3

470p

R15

1

6.8k

R85

100

C10

9

1000

p

R208

100k

Q108

C16

5

100p

C25

5

1000

p

C186

0.1u

R74

220

R57

470

1A

oUT

2A

-IN

3A

+IN

4V

-5

B+

IN

6B

-IN

7B

oUT

8V

+

C82

10p

C78

2200

p

C141

1000p

C22

4

270p

R14

6

100

C16

7

1000

p

Q114DTA114EUA

C13

4

1000

p

L13

10n

C55

470p

IC106AT24C08A10SU18

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

L206

470n

C22

8

100u

20

146MHz -174MHz

LDT

Q4

EST

Q2

VO5

EVT

5C

INT-REF VCC

TO

Q5

MOD

REF

LDT

DC SW

CVT

SDA

DT

CP

VO6MIG

CP

Q6

Q1

DTE

Q1

AUX

Q2

RF AMP

Q4

5C

MIG

CVT

EXT REF

LDT

DP

B

8C

SCL

CP

8T

DTE

EVT

VO

5

DC SW

5B

REF

TX INDICATOR8T

RF AMP

ACTIVEFILTER

CVT

8T

Q5

5B

5C

TO

DP

8C

MIC

Q5

B

RF AMP

DC SW

CURRENTPROTECTOR

SHIFTREGISTER

PAG

TO

DT

5A

CK

5B

AVR

5B

EXR

CKMOD

VO

6

RX

UN

IT (

X55

-308

X-X

X)-

CN

7

H/L

IC203NJM2904E-ZB

DC AMP

IC206TC74HC14AF-F

INVERTER

CO

NT

RO

L U

NIT

(X

53-4

210-

10)(

A/4

)-C

N2

2SK1824-AQ208

DC SW

2SC4215-F(Y)

RF AMP

2SK1824-AQ113

DC SW

2SK1824-AQ112

DC SW

IC107NJM4558E-ZB

AF AMP

D/A CONVERTER

EEPROM

MOD

TO

MIG

EVT

EST

DT

CK

NC

NC

SDA

SCL

LDT

PRT

CP

NC

DP

EXR

CVT

REV

FWD

GND

PAG

B

B

B

PABQ207DTC114EUA

INVERTER

4.7V

RX:7.0VTX:0V

4.3V

2.7V

4.3V

RX:0.2VTX:7.9V

Lo TX:0VHi TX:5V

TX:4.0VRX:0V

0.6V

X56-310 3/4

K L M N O

TX UNIT (X56-3102-70)(A/3):E

Page 79: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

SCHEMATIC DIAGRAM TKR-740

79

-t

L306

R315

1k

C33

4

0.47

u25

C33

20.

1u

R322

10k

D30

6H

SM

88A

S-E

C31

3

1000

p

R40

3

100k

CN307

IC30

3O

P29

1GS

Z

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B8

+V

R30

8

1k

CN306

R32

55.

6k

C32

8

1000

p

CN3041

2

C34

8

1000

p

C35

4

1000

p

R33

0

12k

C30

50.

01u

CN502

2

1

3

D30

8H

SM

88A

S-E

D30

3

ER

ZV

14D

220

C303

1000p

C33

010

00p

C32

7

1000

p TH301

30k

D30

5

DS

M3M

A1-

RP

B

CN3021

PAB

B

B

B

H/L

FWD

REV

PC

PRT

GND

8T

12AUX

R313

1k

R32

910

k

R316

47k

C32

0

470p

CN301 C353

1000p

C31

0

0.1u

R311

47k

C34

9

1000

p

C322

470p

C32

4

1000

p

D304

1SS355

C30

1

330u

25

C34

1

1000

p

C33

5

1000

p

C33

910

00p

R32

6

10k

D318

1SS355

CN305

1

2

CN308

C333

0.1u

R33

8

0

C32

9

0.01

u

IC601RA30H1317M131

1R

FIN

2G

ATE

V3

DR

AIN

V4

RF

oUT

2SC4081(R)Q301

C302

1000p

C32

6

1000

p

C33

110

00p

L305

110n

L303

C321

470p

D50

0

MIN

ISM

DE

190F

Q304IMH5A

C32

5

1000

p

R35

5

47k

TS301

S79-0470-05

L301

Q308UMC5

L304L79-0558-05

C34

00.

1u

R314

100k

R35

7

1k

L302

J402

R33

9

0

C30

447

0p

C31

7

330u

25

R32

8

270

R306

10k

R36

0

1.8k

R30

3

1.8k

R304

12

R359

12

R30

5

1.8k

R35

8

1.8k

R324

1.5k

R30

0

1.8k

R35

4

10k

C42

0

47u1

6

C43

2

330u

25

L308

C43

1

330u

25

R31222

(1/2W)

R31022

(1/2W)

C42

5

100u

20

C43

0

2.2u

10

D32

0

02D

Z5.

6F-X

,Y

L307

C30

6

33p

C31

147

u25

C41

1

4p

C41

0

2p

C41

2

6p

C41

3

3p

C336

1p

C338

1p

C337

1p

C31

6

12p

C30

7

12p

C31

5

33p

C31

2

39p

R32

7

680

C41

412

p

R323

1k

R320

120k

R317

39k

IC302OP291GSZ

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B

8

+V

R367

1k

Q309DTC114EUA

C31

9

470p

R321

4.7k

R319

120k

R301

39k

AUX

DC SW

POWERSUPPLY

TX UNIT(X56-3102-70)(C/3):E

DRV IN

IN

CURRENTSTEERING

OUT

RF OUT

DC

AM

P

+B

CURRENTPROTECTOR

DC AMP

TX UNIT (X56-3102-70)(B/3):E

COMPARATOR

SURGEPROTECTOR

DC SW

REVERSEVOLTAGEPROTECTOR

POWERMODULE

GND

CURRENTSTEERING

FB

GND

GND

FB

DC SW

HIGHVOLTAGEPROTECTOR

RF DETECTOR

D306,308

B

B

NC

D310

MINISMDC07502F

SURGEPROTECTOR

Q302IMH5A

DC SW

RX:0VTX:5.5V

RX:0VTX:4.2V

Hi:0VLo:5V

RX:0VTX:5.3V

RX:0VTX:3.4V

RX:0.2VTX:7.9V

RX:13.1VTX:12.5V

RX:0VTX:2.7V

RX:13.1VTX:12.5V

TSRQP

1

2

3

4

5

6

7

X56-310 4/4

Note : The components marked with a dot ( ) are parts of layer 1.

Page 80: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740

80

MEMO

Page 81: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740

81

GENERAL

Frequency range .............................................................. RX : 146~162 MHz:K, 158~174 MHz:K2, 136~150 MHz:K3TX : 136~174 MHz

Input volta ........................................................................ 13.8V DC negative groundTemperature range........................................................... -22˚F to +140˚F (-30˚C to +60˚C)Frequency stability ........................................................... ±0.00015% (-22˚F to +140˚F)Antenna impedance ......................................................... 50ΩChannel Spacing............................................................... Wide : 30 kHz, Narrow : 15 kHz

(PLL channel stepping 2.5kHz, 5 kHz, 6.25 kHz)Channels quantity ............................................................. 32Duty cycle ........................................................................ 100%Dimensions (including protrusions) .................................. 19 in (483mm) W 1-3/4 in (44mm) H 12 in (305mm) DWeight .............................................................................. 8.8 lbs. (4kg)

RECEIVER

Sensitivity (EIA 12dB SINAD) ........................................... 0.30µVSelectivity ......................................................................... Wide : 95dB at ±30kHz

Narrow : 89dB at ±15kHzNarrow : 87dB at ±12.5kHz

Channel Frequency Spread .............................................. 3 MHzSpurious and image rejection ........................................... 100 dBIntermodulation ................................................................ Wide : 90dB at ±30kHz/±60kHz

Narrow : 85dB at ±15kHz/±30kHzFM Hum and Noise .......................................................... Wide : 60dB, Narrow : 55dB

TRANSMITTER

RF power output .............................................................. 5WChannel Frequency Spread .............................................. 38MHzType of Emiss .................................................................. 11K0F3E, 16K0F3EAudio distortion ................................................................ Less than 0.5% at 1000HzSpurious and emission ..................................................... 70dBFM Noise.......................................................................... Wide : 55dB, Narrow : 50dB

KENWOOD follows a policy of continuous advancement in development. For this reason specifications may be changed without notice.

SPECIFICATIONS (K, K2, K3 TYPE)

Page 82: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740

2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan

P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

Rembrücker Str. 15, 63150 Heusenstamm, Germany

Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

KENWOOD House, Dwight Road, Watford, Herts.,

Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

Via G. Sirtori, 7/9 20129 Milano, Italy

Bolivia, 239-08020 Barcelona, Spain

(A.C.N. 001 499 074)16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia

Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,

1 Ang Mo Kio Street 63, Singapore 569110

CA 90801-5745, U.S.A.

Kwai Fong, N.T., Hong Kong

WD18 9EB United Kingdom

L’Etoile Paris Nord 2, 50 Allée des Impressionnistes, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex

SPECIFICATIONS (E TYPE)

GENERALFrequency Range ............................................................. RX : 158~174MHz, TX : 146~174MHzNumber of Channels ........................................................ 32Channel Spacing............................................................... Wide : 20kHz, Narrow : 12.5kHzPLL Channel Stepping ...................................................... 2.5kHz, 5kHz, 6.25kHzAntenna Impedance ......................................................... 50ΩOperating Voltage ............................................................ 13.2V DC (10.8 ~ 15.6V)Current Drain .................................................................... Standby : Less than 1.2A

Receive : Less than 1.7ATransmit/Receive : Less than 8.0A

Duty Cycle ........................................................................ Receive : 100%, Transmit : 100%Frequency Stability ........................................................... ±0.00015% (–22˚F to +140˚F)Operating Temperature Range......................................... –30˚C to +60˚C (–22˚F to +140˚F)Dimensions (Including protrusions) .................................. 483 (19) W 44 (1-3/4) H 305 (12) D mm (inches)Weight .............................................................................. 4kg (8.8 lbs.)

RECEIVER (Measurements made per TIA/EIA-603, EN-086)Sensitivity (EN 20dB SINAD) ............................................ 0.50µVSelectivity ......................................................................... Wide : 88dB (±20kHz), Narrow : 85dB (±12.5kHz)Spurious Response Rejection .......................................... 95dBIntermodulation ................................................................ 80dBFM Hum and Noise (EIA) ................................................. Wide : 58dB, Narrow : 55dBAudio Output (Ext. Speaker) ............................................. 4W at 4Ω less than 5% distortionAudio Distortion (Ext. Speaker) ........................................ Less than 2% at 1000HzBand Spread ..................................................................... 3MHz

TRANSMITTER (Measurements made per TIA/EIA-603, EN-086)RF Power Output ............................................................. 25W adjustable to 5WSpurious Emission............................................................ –36dBm 1GHz, –30dBm > 1GHzType of Emission.............................................................. Wide : 14K0F3E, 12K0F2D, 12K0F1D

Narrow : 8K50F3E, 7K50F2DFM Hum and Noise (EIA) ................................................. Wide : 55dB, Narrow : 50dBAudio Distortion (EIA) ....................................................... Less than 0.5% at 1000HzMicrophone Impedance ................................................... 600ΩBand Spread ..................................................................... 28MHzEXT Reference Sensitivity (10MHz, 50Ω) ........................ –10dBm

KENWOOD follows a policy of continuous advancement in development. For this reason specifications may be changed without notice.

Page 83: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

D GS

DGS

C20

R210R211

R212R217

IC24

IC251

34

5

IC27

IC29

IC30

IC32

R227

IC36

IC37

IC40

C202

C204C205

C207

C60

C210++

+

C211+

++

+

+ +

+ +

C68 +

+

+

+

+

+

+

+

+

+

C77

C227C228

C229

C83

C88

C91

R291

R295

R100

R104

R302

R303

RSSI

R304

R305

R306

R114RPTTI RPTTO

CHECK

R115

R116

R117

R118

1 SPISPGVLOVLIGNDBLTNCHOKPTTEXRSW1SW2BBSW3SW4TESTSW5SW6EN7MDATDTCKGNDMIMIG

RAO RAI

R121R122

R123R124

L6

R128 W1

R321

R322

R323

R324

R325

R132

R326

R133

R327

R134

R328

R135

R329

1RRARTA

RPTTEXMON

GNDI/O1I/O2I/O3I/O4I/O5I/O6I/O7 12

R136R137

L12

C101

C102

R141

R335

R142

12 AUXO6AUXO5AUXO4AUXO3AUXO2AUXO1TXGNC

NCNCNCNC

SCPTTMON

SPMRXG

RARDTATDDG

AUXI3

RXDNCNCNC

AUXI2AUXI1

TXD

30 29

R336

R143

R337

R144

R338

R339

CN707

RA

DETO

DETI

C300

C301

C302

C303

1BFWDEXRCVTCVR

RDRSSISPOSPOSPI

GNDGNDSPGSPG 14

R340

C304

C305

R342

C306

C307

R344

C308

C309

R153

R154

R155

R349

C310

C311

C312

C313

R350

R10

R351

R353

C123

C317

R354

C318

R355

C125

R356

R357

C325

C132

C326

C327 C328

R171

C329

R367

C137

R28 R29

Q5

R176

C330C332

R757

C333

R370

C334

R371

C335

C336

C143

C337

R181

C147 W1

J79-0034-19 A/4

R7

IC45

1 10

R190

R191

R46

R47

R194 R196

R197

R199

C160

C163

C166

CHECK

R66R69

C180

TP5

TP4

TP1

+

+ + +

++

TP2

TP3

R70

C182

C185

C188

R78

C192

R86

CN1

CN2

R90 CODE4

CODE3

CODE2

CODE1

OPT

GND B

TXI

PTTI

TXO

ANI

PTTO

TESTO TESTI26

R91

R92

R93

X2

CP1 CP2

R200

R202R203

1

1

100

100252526

2650

50

51

5175

757676

R204

C19

R205

IC12

R206

IC13

R207R208

R209

R21

3

R21

9

C32

C33

C34

R22

0

C35

C36

C37

C38 C39

R22

8

R22

9

C40

C41

C42

C43

C44

R23

0

C45

R23

1

C46

R23

2

R23

3R

234

C49

R23

5R

236

R23

8

C50

C20

0

C51

C20

1

C52

C53

C54

C55

R24

1

C57

R24

3

C58

R24

4

C59

R24

6

R24

7

R24

8

R24

9

R25

1

C66

R25

2

R25

4R

256

R25

7

C22

3

C22

4

C22

5

C76

C22

6

R26

3

C78

C79

R26

7

C23

1

C23

2

C87

R27

4

C89

1 458

1 458

1 458

5 814

R28

1

R28

4

C1

R28

6

R28

7

R28

8

C4

C5

C7

C9

R29

0R

293

R29

7R

298

R29

9

R10

1

R10

3

R30

0R

301

L1

L7 L9

R13

1

L11

L13

C10

0C

108

R14

9

R34

3

IC3

IO G IO GR

150

IC4

O

G

I O

G

I

R15

1

R34

5

IC5

R15

2

R34

6

IC6

R34

7R

348 R

352

R16

0

C12

6

R35

8

C12

8

R35

9

C12

9

C13

1

R36

2R

361

R36

0R

363

R36

4R

365

Q1

R36

6R

368

R36

9

C13

9

C33

1

R30

26PA

B B B BPA

GG

ND

FWD

REV

CV

TEX

RD

PN

C CP

PRT

LDT

SC

LS

DA

NC

NC

CK

DT

EST

EVT

MIG TO

MO

D1

R31R37

2

R32

C14

4

R1

C14

6

1 458 C

148

C14

9

R8

R38

0

C15

0 C15

1

C15

2

C15

5

R45

26N

CN

CN

C

NC

NC

CV

RG

ND

EPR

LDR CP

DP

SD

AS

CL

EVR

ESR

DT

CK

RS

SI

SC

DEG DET

RX

G RAB B B

1

C15

6

R19

3

R48

R19

5

R49

C16

4

C16

5

C16

7

C16

8

1

189 16

1415 28

R71

C18

3

R76

C18

9

C19

0

R80

CN

3

CN

4C

N5

X1

CP3

C10

CP4 C

11

CP5

C12

1

18

8

9

916

16

CP6

C13

CP7

C15

IC17

R12

0

CN

6

TKR-740 PC BOARD

CONTROL UNIT (X53-4210-10) (A/4)

Component side view (J79-0034-19 A/4)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC3 10K

IC4 10E

IC5 10L

IC6 10F

IC12 10N

IC13 5D

IC17 7H

Ref. No. Address

IC24 8M

IC25 7M

IC27 6M

IC29 10P

IC30 7L

IC32 9D

IC36 8D

Ref. No. Address

IC37 8P

IC40 6D

IC45 3R

Q1 7F

Q5 9M

CONTROL UNIT (X53-4210-10) (A/4)

Component side view (J79-0034-19 A/4)

36 37

Page 84: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 A/4

C21

C24

C27

C28

R214

C29

R215

IC22

R216

R218

C30

C31

R221R222

R223

IC31

R225

R226

IC34

IC38

1

1

3

3

4

4

5

5

R237

+

IC46

IC47 IC48

+ +

IC49

C203

C206

C208C209

C61

C212C213

1

1011

20

1

1011

20

R250

C214

Q10

Q12

R262

R266

C2

C3

C6

D3

D6

D8

D9

R106

D10

D11

D12

D13

D14

D15

D16

D18

R110

D19

R307

D20

D21 D24

D25

1

89

16

D26

D27

D28

R125

D30

D31

R129

D34

D35

D37

D38

R130

D39

R138

R140

1

1

8 9

16

12 13

24

C106

C107

R145

R146

R147

R148

IC1

R157R158

R159

R161

1

2526 50

51

7576100

R164

R165

R166

R168

C134

C135

R173

+

+

+

+

+

+

+

+

+

+

+

+

R27

R174

C138+

+

+

+

+

+

R177

R178

C140

R182

R2

R3

R184

R38

R4

R185

R5

R186

R6

C153

C154

C158

C161

C162

C169C170

C173

C174

C176

C177

C178

C179

R72 R73

C184

R74

+

+

+

C187

C193

C194 +

C14 +

C18

+ +

IC10

I

G

O

IC14

1

3 4

5

1

3 4

5 1

3 4

5

1

3 4

5

Q11

C8

C31

5

Q2

R9

IC18

R22

4

R23

9

IC15

IC16

R24

0

C56

R24

2R

245

R25

3R

255

R25

8

R25

9

C22

1

R26

0

R26

1R

264

R26

5R

268

R26

9

R27

0

R27

1

R27

2

R27

3

R27

5

R27

6

R27

7

R27

8

R27

9

R28

0R

282

R28

3R

285

R28

9R

292

R29

4

R29

6

R10

5

1 458

11

4

4

5

5

88

R10

7R

108

R10

9

CP1

0C

P11

CP1

4C

P15

L10

R15

6

R16

7

R16

9

R17

2R

175

R17

9

R18

0

R18

3

R39

R18

7

R18

8

R18

9

C15

7

C15

9

C17

1C

172

C17

5R

119

C10

5R94

R95

R96 C22C23 C25C26

IC35

C22

2

C25

6

IC7

1 161732

R16

R35

R36

R37

R40

R41 R42

R43

R44

R19

2

C18

1

C18

6

C19

1D

1

L2L3

L4L5

R16

2

R33

R34

Q13

Q14

Q15

Q16

C80

189 16

C84

C86

C90

C96

R31

0R

311

R31

4R

315

R31

6R

317

R31

8R

331

C12

7

C13

0

IC39

D4

D5

D7

D17

D22

R12

6

R12

7

R13

9

R33

4

R34

1

C31

6

C31

9

C32

0

C32

1C

322

C32

3

C32

4C

133

C13

6

C14

1

C14

2C

145

IC33

Q8

Q9

IC42

1 345

TKR-740 PC BOARD

CONTROL UNIT (X53-4210-10) (A/4)

Foil side view (J79-0034-19 A/4)

CONTROL UNIT (X53-4210-10) (A/4)

Foil side view (J79-0034-19 A/4)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC1 6C

IC7 7K

IC10 7M

IC14 5P

IC15 6J

IC16 7J

IC18 7H

Ref. No. Address

IC22 5E

IC31 7E

IC33 8P

IC34 9E

IC35 9J

IC38 5D

IC39 9R

Ref. No. Address

IC42 10P

IC46 7L

IC47 7L

IC48 7M

IC49 10Q

Q2 6C

Q8 10R

Ref. No. Address

Q9 10R

Q10 3R

Q11 5C

Q12 5S

Q13 4P

Q14 3P

Q15 3P

Ref. No. Address

Q16 4P

D1 5M

D3 9P

D4 10P

D5 7P

D6 8S

D7 7P

Ref. No. Address

D8 8S

D9 8S

D10 9S

D11 10S

D12 9S

D13 7Q

D14 6Q

Ref. No. Address

D15 10S

D16 9S

D17 10R

D18 6Q

D19 6Q

D20 10S

D21 6Q

Ref. No. Address

D22 10R

D24 6Q

D25 10P

D26 4S

D27 3S

D28 7Q

D30 9P

Ref. No. Address

D31 4S

D34 9P

D35 4S

D37 7Q

D38 8Q

D39 4S

38 39

Page 85: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 B/4

J79-0034-19 B/4

CN702CN703

C724

12 SW6SW5SW4SW3SW2SW1B5A25B2EN7CKDSGNDNCNC

NCNC

5C2MDAT

HOKMICMIGPTT

GNDB

BLTGND

VLIVLONC30 29

C725

+

C738

D703

POWGRN

D704

TXRED

D705

BUSYGRN

D710

1

45

8

+

IC703

Q707

Q708

R711

R712+

+

+

+

R713

R721

D706

D708

D711

D712

IC23

R70

7

R70

8

R71

4

R71

5

26M

IGM

IG

ND

CK

DT

MD

ATEN

7S

W6

SW

5TE

ST

SW

4S

W3

B B SW

2S

W1

EXR

PTT

HO

K8C B

LTG

ND

VLI

VLO

SPG

SPI

1 CN

706

R72

5R

726

R72

7

R72

8R72

9R

730

C71

0

C71

3

R75

6

1 2

S70

6

C73

1

C73

2

C73

4

C73

5

C74

2

O G I19

10 18

D702

EX REFRED

INT REFGRN

IC70

6

Q70

0Q

701

Q70

6

Q70

9

Q71

0

R70

6

R70

9

R71

0

R71

7R

723

R72

4

R73

4

C70

8

C70

9

C71

1C

712

C71

7

C71

9

C72

1

C72

3

C72

7C

728

C72

9C

730

C73

3

C74

0

C74

1

D70

7D

709

IC70

4OGI

OGI

IC70

5

TKR-740 PC BOARD

CONTROL UNIT (X53-4210-10) (B/4)

Component side view (J79-0034-19 B/4)

CONTROL UNIT (X53-4210-10) (B/4)

Component side view (J79-0034-19 B/4)

CONTROL UNIT (X53-4210-10) (B/4)

Foil side view (J79-0034-19 B/4)

CONTROL UNIT (X53-4210-10) (B/4)

Foil side view (J79-0034-19 B/4)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC704 10N

IC705 11N

Q700 11P

Q701 11P

Ref. No. Address

Q706 9C

Q707 9D

Q708 9C

Q709 9D

Ref. No. Address

Q710 9C

D706 11R

D707 11O

D708 11R

Ref. No. Address

D709 11O

D711 11R

D712 10R

Ref. No. Address

IC23 3O

IC703 4J

IC706 3J

D702 5C

Ref. No. Address

D703 5H

D704 5F

D705 5D

D710 4M

40 41

Page 86: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

IHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 C/4

J79-0034-19 C/4

J700

17

28

R716

R718

C714

C716 +

VR700

14 NCNC5C2

HOKMICMIGPTT

GND

GND

VLIVLO

BBLT

MDAT

1

C750R71

9

CN

705 R73

3

C71

5

C71

8

VR

701

R72

0

R72

2R73

1

R73

2

C72

0

C72

2

C73

6

C73

7

TKR-740 PC BOARD

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

CONTROL UNIT (X53-4210-10) (C/4)

Component side view (J79-0034-19 C/4)

CONTROL UNIT (X53-4210-10) (C/4)

Foil side view (J79-0034-19 C/4)

42 43

A B C D E F G H I J

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0034-19 D/4

J79-0034-19 D/4

C70615A2

5B2

EN7

CK

DS

GND 6

C707

D700 D701

CN

700

CN

701

S700

S701

S702

S703

S704

S705

7 SW6

SW5

SW4

SW3

SW2

SW1

B1R

700

R701

R702

R703

R704

R705

C700

C701

C702

C703

C704

C705

C739

1091

18 1091

18

IC700

IC701 IC702

CP700 CP701 CP702 CP70318

109

1

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

CONTROL UNIT (X53-4210-10) (D/4)

Component side view (J79-0034-19 D/4)

CONTROL UNIT (X53-4210-10) (D/4)

Foil side view (J79-0034-19 D/4)

Ref. No. Address

D700 5C

D701 5D

Ref. No. Address

IC700 11E

IC701 11C

IC702 11D

Page 87: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

S

BCE

BCE

GI

O

G IO

CE BCE B

GO I

DG

S

DG

S

I G O

J79-0036-09

C21

C25

C26

C32

C33

+

+

C37

C43

C44

C221 C222

C46

C50

C201

C203

C56+

+

C57

C207

C58

C59

C65

C217

Q14

Q17

Q18

Q19

C71

C74

C75

C226

C79

A1

Q26

Q28

Q29

Q34

C96

C4

TC1

C6

TC2

C7

D2

D4

D9

XF1

XF2

XF3

XF4

NARROW

WIDE

TH1

R103

R107

D11

R109

R111R114

R115

R118

R120

L1

R121

L363L364

L5

R126

R135

L12

L14

L16

R140

C106

C107

R144

C108

IC3

IC4

IC5

+

+

+

+

+

R154

IC9

R156

CF2

L33

C313

CF4

R10

CF5

C316

C123C124 +

+

+

+

+

+

R162

R163

C127

C129

R20

R170

L49

C329

R25

R172

R27

R28

C138

Q8Q9

L53

R31

C142

C143

R34

+

R35

R182

R36

R2

C149

R5

R186

12

R6

R7

R9

C150

R41

R42

R44

R45

R192

C156

R193

C163

R53

R54

R55

C167

89

116

R58

C172

C174

1213

124

C176C178

C179

R69

R73

R74

R78

C189

R80

R81

R82

R84

R85

CN1RX IN

CN2CN3

CN5

CN6

CN7REF IN

X1

R97 CV1

4 5

1 8

CP1

C10 +

++

C12

C13

8 9

1 16

C15

C16

IC15

IC16

L9

Q22

R106

R108

R119

C122

189 16

121324

1

1 458

1

12

458

C140

C145

R43

C184

C204

Q20

R132

L20

R149

R152

R158

R22

R23

C135

C137

C155

C180 C1

85

R76

C187

C191

C193

C196

IC7

C171

Q16

IC6

R155

L30

L44

L41

L40

L43L5

2

C144

C152

C161

C183C1

92

C198

CN4

X2

C39

L19

L21

L23

L27

12

L28

L31

L32

L38

L39

R37

R71

C20

IC20 C2

9

C35

C48

C67

C229

L11

R11

R16

C321

C327

Q1

Q5

R30

L55

R32

C346

R388

R195

R389

R199

C11

C208C2

09

C210

R116 C1

01R12

R381

R382

R383

R384

R385

R386

C385

C387

C388

C389

C14

IC13

1RA RX

GDE

TDE

GSC RS

SICK DT ES

REV

RSC

LSD

ADP CP EP

RLD

RG

ND

CVR

NC

NC

B B B NC

NC

NC

26C2

3

C41

C45

C47

C66

Q12

C78

C1C8

D6TH

2L4

L7

L10

L17

C105

L22

C110 IC

2

C115

R18

R19

Q3

Q6

R33

R39

R8

R48 R4

9

R56

R57

R61

R64

C27

C34

C40

C49

Q10

Q13

C218

D3

L2

L6

L8

L15

R24

R26

L56

C17

C73

C77

C82

C88

C90

R46

R62

IC14

C5

L3

TKR-740 PC BOARDRX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Component side view (J79-0036-09)

RX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Component side view (J79-0036-09)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2

Ref. No. Address

IC2 3K

IC3 4C

IC4 3P

IC5 6B

Ref. No. Address

IC6 7B

IC7 8D

IC9 5C

IC13 4G

Ref. No. Address

IC14 3M

IC15 9B

IC16 4E

IC20 7G

Ref. No. Address

Q1 8I

Q3 7J

Q5 8I

Q6 6J

Ref. No. Address

Q8 7L

Q9 7K

Q10 7M

Q12 7L

Ref. No. Address

Q13 7N

Q14 8K

Q16 6E

Q17 4P

Ref. No. Address

Q18 5E

Q19 5E

Q20 6D

Q22 5D

Ref. No. Address

Q26 2B

Q28 4B

Q29 3C

Q34 7C

Ref. No. Address

D2 5L

D3 5M

D4 5K

D6 5K

Ref. No. Address

D9 3J

D11 3C

44 45

Page 88: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S

DG

DG

S

J79-0036-09

IC19

C24 IC21

C36

C38

C200

C53

C54

C404

C211

C62

C212

C213 +

+

C220

C72

C76

C228

Q24

C84 +

Q30

Q31C86

C87

Q33

Q35

C92

C93

C94

C95

C98

C3

R105

D10

D12

R122R124

R125

R129

R130

R131

R133

R136

L13

C100

C104

R141

R143

R146

R147

R148

C111

L26

C112

C306

R150

R151

C117

IC8

R157

R159

CF3

C121

R13

R14

R161

C125

C126

C128

R165

R166

R167

R168

R169

C130

L45

C131

R21 L46

C132

C133

C134+

C136

R175 R176

R177

Q7BCE

R179

C141

R180

L58

C147

R3

C148

R188

R189

L64

L65

C151

R191

C157

C158

C159

R196

C160

R50

R51

C162

R52

R394

C169+

+

+

+

+

C170

C173

R63

C175

R66

R67

R68

R70

C181

R75

R77

R79

IC301

IC3021 5

3 4

C391

R92

R95

R96

R98

R99

C18

IC10

C19

IC11

IC12

IC17OGIC3

1

R38

L66

C30

C55

C402

C403

C219

C70

Q25

B C E

B

CE

C80

C83

C85

C89

Q39

C91

C97

C2

R302

R303

R304

L18

C109

L25

C113

L35

L36

C333

R181

R1

78

114

R380

R190

R387

1213

124

R197 R1

98

R390

R391

R392

R393

R60

R65

R72

C384

R90

IC181 3

5 4

4

5

3

1

Q32

B C E

B

CE

C9

R100

R101

R102

R104

R123

R127

R128

R134

R137

R138

R139

R142

R145

L24

C114

C116

C118

C119

L34

C120

L37

R15

R164

45

18

45

18

L42

L47

L48

R171

C139

L51

L54

R184

R185

R187

C153

C154

C164

C165

1312

241

C166 C1

68

C188

C195

C199

R93

C202

45

18

CF1

R4

C60 C6

1

Q36

Q37

Q38

R153

R160

R173

R174

C146

R47

C177

C182

C186

C190

R83

C194

C197

R178

TKR-740 PC BOARDRX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Foil side view (J79-0036-09)

RX UNIT (X55-308X-XX) 0-11 : K 0-12 : K3 2-71 : K2,E

Foil side view (J79-0036-09)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2

Ref. No. Address

IC8 11Q

IC10 2K

IC11 7P

IC12 9R

Ref. No. Address

IC17 11D

IC18 8Q

IC19 3I

IC21 10R

Ref. No. Address

IC301 6K

IC302 5J

Q7 10E

Q24 11N

Ref. No. Address

Q25 9M

Q30 3J

Q31 11P

Q32 10P

Ref. No. Address

Q33 6M

Q35 9Q

Q36 6R

Q37 6R

Ref. No. Address

Q38 6R

Q39 7L

D10 11L

D12 5J46 47

Page 89: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

S

S

GD

DG

S

S

GD SG

D SGD

C23

R210

C26

R600

C33

C34

C35

XF211

R222

R228

C41

C47

C201

C52

R240

C208

R245

C209

R247

R249

C212

R250R254

C220

C221

C222

C74

C75

C76

C233

R270

R271

C236

C240

C245

C246

C248

C3

C4

C5

TC1TC2

C250

C251

C252

C253

C256

C258

D1D2 D3D4

D6

D201

D202

D203

D206

L102

C282

IC202

C283

L501

L502

C288

C293

R113

R505R506R507

L1L2 R123

L4L7

R517

R518

R130

R131

R134

C102

C104

C107

R149

C111

IC3IC4

C115

C506C507

C127

C128

R18

R20

C132

R22R23

R24

R25

Q1Q2

Q3

Q4

Q5

Q7

C143

R180

C144

R181

R1

R182

R2

R183

R5

R6 R7R8

R191

R48R49

R590

Q208

R591

R592

R64

D503

L204

IC100

L209

IC305

IC501

IC502

Q241

C591C592

C594

L240

L241

L244

L247

R204

R205

+

CN1DRV OUT

DVcc

FB

GND 1

2

FB

GND 1

2

4 5

1 8

8T

+

+

MAINVCO

MOD

+

34

15

89

116

1213

124

TO

MAINPLL

+

+

+

+

CV

MAIN PLL

45

18

CN2

12A

UX 8T

GN

DR

PT PCR

EVFW

DH

/L B B BPA

B1

34

15

34

15

D50

MA

IN

D51

SU

B

D52

TX

+

+

89

116

DDS

1213

124

CVMIC

CN3

MO

DTO M

IGEV

TES

TD

TC

KN

CN

CS

DA

SC

LLD

TR

PTC

PN

CD

PEX

RC

VT

REV

FWD

GN

DPA

GB B B PA

B261

CP

DP

EN

1213

124

LE

CK

DA

+

+

+

SUB PLL

CV

SUB PLL

EXT REF

CN102REF OUT

+

O G I

CN101EXT REF IN

J79-0169-09 A/3

C29

C31

C32

R22

3

C45

C27

1C

272

IC20

3

CN

103

CN

104

C10

9R

150

R26

R18

4R

186

C16

7

L202

L208

C18

6

C20

C25

C27 C28

C30

C70

Q21

C1C2

C7

C8

C9

D5

L5L6

L11

R13

R14

R15

R16

R17

R19 R

21

R27Q

6

R3

R4

R47

R54

C16

5

C16

6IC10

6

C10

C12

C14

C17

C21

R21

4

R24

4

C61

C21

4

R25

2

C73

C23

5

R27

2

C23

9

C24

4

Q10

7

C28

6

C29

2

R10

1R

105

R11

4

R11

7

R11

8R

119

R50

2

R50

3

R50

4

R12

2

R12

4 R51

5

R51

6

C11

2

C11

3

C11

8

C11

9C

501

C50

2

C51

0

C51

1

R19

0R

192

R58

8

IC10

9

C58

4

L242

L248

R20

2R

203

R20

9

Q17

Q18

IC20

0

C28

4

R55

R56

R57

R59

3

C59

5

R21

3

XF2

10

R22

4R

225

R22

7

C20

3

C21

0

C21

1

X20

1

C21

5C

218

C21

9

L105

L106

C28

5

X10

1

C11

4

C12

6

Q20

1

L203

L205

IC10

3

CF1

1 235

IC1 G

IO

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Component side view (J79-0169-09 A/3)

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Component side view (J79-0169-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC1 3F

IC3 9H

IC4 9G

IC100 10H

IC103 5Q

IC106 9E

IC109 5J

Ref. No. Address

IC200 4L

IC202 6L

IC203 4J

IC305 4K

IC501 7J

IC502 7M

Q1 6H

Ref. No. Address

Q2 6F

Q3 7H

Q4 8F

Q5 8G

Q6 7G

Q7 4I

Q17 4L

Ref. No. Address

Q18 4L

Q21 6D

Q107 7I

Q201 6N

Q208 4I

Q241 7L

D1 5H

Ref. No. Address

D2 5F

D3 5H

D4 5F

D5 7H

D6 7F

D50 4L

D51 4L

Ref. No. Address

D52 4L

D201 5N

D202 5N

D203 6N

D206 5B

D503 4L

48 49

Page 90: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

SGD

S

GD

S

GD

S

GD

C22

C24R211

R215

R217 R218

R219

R221

C36

C37C38

C39 C43

R241

C58

C62

C213

R251

Q11

C216

Q12

R253

C68

Q14

Q15

R257

R258

C71

R260

C79

R265

R269

C80

C82

C232

R275

C242

C247

C249

C6

C254

C259

Q10

2

C260

Q109

C264

C265

D205

Q110

Q113

Q114

L104

C277

C278

C280

C287

C290

C291

C296

C297

C298

R102

R106

R108

D11

R109

R112

R501

R121

R509

R510

R129

R511 R512

R138R139

L13

L14

C101R141

C106

C108

R145

R147

C504 C505

R10R11

R12

C124

C125

C131

C133

C136

C138

R28 R29

Q9

R30

R31

C529

R32

R34

R35

R36

C147

R37

R38

R185

R9

R41

R43R44

R46

R580

R51

D101

R587

Q203

Q205

Q206

Q207

C171

C172

R62

R69

L201

L206

L207

R73

IC107

R79

IC110

R88

Q242

L243

C13

C16C19

R208

+

O G I

23

15

4 5

1 8

+

+

+

G OI

+

+

45

18

78

114

G

O

IG OI

45

18

+

+

+

+

+

+ +

+

+

34

15

B

C

E

D

S

G

34

16

J79-0169-09 A/3

R21

2

R21

6

R22

0

C40

C42

C46

R24

2

C20

6

R24

3

C20

7

C66

C72

C22

3

C22

4

C22

5

R26

2

C77

R26

3

R26

4R

266

R26

7

R26

8

R27

3

C23

7

R27

4

C24

1 C24

3

C25

5

C25

7

Q10

8

C26

1

C26

2

C26

3

D20

4

C26

6

C26

7

C26

8

C26

9

Q11

2

Q11

5

L101

C27

0

C27

4

C27

5

C27

9

C28

1

IC20

4

IC20

5

IC20

6

L503

C28

9

C29

4

C29

5

R10

0

R10

7

R11

5

R12

0

R13

7

C10

0

C10

3

R14

2

R14

3R

146

C11

0

IC2

C11

6

C12

3

C13

0

C14

0C

141

C14

5

C53

3

R58

1R

582

R58

3R

584

R50

R58

5

R52

D10

3

R58

9

Q20

2

C16

8

C16

9

C17

0

R61

R63

C17

5

R72

R74

C18

7

R77

C18

8

R78

L210

IC10

8

R86

R87

R89

C58

6

C58

7C

588

C58

9 Q24

0

C59

3

L246

R20

6

Q10

6

L103

R22

6

C50

C51

C53

C54

C56

C59

C60

C63

C64

C65

R25

9

C78

C23

8D7

D12

R51

3

R13

2 R13

3

L15

R14

0

C10

5

R14

4

R15

1

C50

8

C51

2

C13

4

C13

5

C13

9

R33

R39

R40

R42

R45

C17

3 C17

4

R65R

67R

68

R70

R71

IC10

2

IC10

5

R85

C11

C15

C55

Q13

Q8

C57

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Foil side view (J79-0169-09 A/3)

TX UNIT (X56-3140-10) (A/3) : K,K2,K3

Foil side view (J79-0169-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC2 3H

IC102 9N

IC105 9L

IC107 7H

IC108 3E

IC110 9J

IC204 8D

Ref. No. Address

IC205 4G

IC206 9H

Q8 9Q

Q9 8P

Q11 7P

Q12 7P

Q13 7Q

Ref. No. Address

Q14 6Q

Q15 7C

Q102 9B

Q106 9B

Q108 9C

Q109 8B

Q110 6C

Ref. No. Address

Q112 6C

Q113 6B

Q114 6B

Q115 9E

Q202 7F

Q203 8Q

Q205 8B

Ref. No. Address

Q206 7D

Q207 6H

Q240 5I

Q242 7I

D7 8P

D11 8Q

D12 8Q

Ref. No. Address

D101 7B

D103 7C

D204 6G

D205 8C

50 51

Page 91: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R400 R410

R605

C421

Q301

12B

Q305

Q307

3 4

1 5

Q30823

15

Q310

34

15

L302

L304

L305

L306

J402

R301

R303

R304

R306

R308

R310

R312

R313R314R316

CN301DRV IN

CN302

R320R323 R324

8B

R325

R332

R333

R335

R337

R338

R339

FWD DET

C301 +

+

+

R340

TH301

R341

R343

R344

R347E

C

B

C311

R350

C317

C319

R356

R358

1

2

3

4

R359

C320

C322

C323C324

C325

C329

AUX

IN

OUT

C342

C343

C344

C345

C350C355

D303

D304

+ +

+

+

D305D307

D312

D317

IC302

IC303

CN308RF OUT

REV DET

1 GND

FB2

1 GND

FB2

PAB

B B B H/L

FWD

REV

PC RPT

GN

D8T A

UX

J79-0169-09 B/3

J79-0169-09 C/3

R40

3

Q30

2

Q30

4

Q30

6

Q31

2

Q31

3

R31

1R

315

R31

7

R31

9

CN

304

CN

305

R32

1

R32

6

R32

7

R32

9

R33

1

R33

4

TH30

2

R34

2

C30

8

R34

8

C31

0

C31

3

R35

4

R35

5

C32

1

C32

7

1 12

C32

8

C33

1

TS30

1

C34

8

C34

9

C35

2

C35

4

C35

7

C35

8

D30

8

D31

0

D31

8

IC30

4

Q30

9

E C B L301

L303

R30

0

R30

5

IC60

1

R31

8

R32

2

R32

8

C30

3

C30

6

R34

9

C31

4

C31

8

R35

7

R36

0

C33

0

C33

3

C33

4

C34

1

C34

6

C35

1

C35

3

D30

6

CN

306

+B

CN

307

GN

D

34

16

16

34

45

18 4

5

18

45

18

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Component side view (J79-0169-09 B/3)

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Component side view (J79-0169-09 B/3)

TX UNIT (X56-3140-10) (C/3) : K,K2,K3

Component side view

(J79-0169-09 C/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC302

4O

IC303

5I

IC304

IC601

5G

5H

Q301 5K

Q302 8I

Q304 6H

Q305 4K

Q306 6C

Q307 6D

Q308 5J

Q309 7K

Q310 5L

Q312 4I

Q313 4H

D303 7F

D304 5J

D305 6G

D306 9M

D307 6M

D308 9D

D310 7G

D312 6C

D317 4K

D318 4H

52 53

Page 92: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0169-09 B/3

J79-0169-09 C/3

C414

R330

C302

C304

C305

C315

C316

C326

C332

C339

C340

D500 1

3

C30

7

C30

9

R34

5

R34

6

C33

5

C33

6

C33

7

CN

502

OU

TIN

C31

2C

338

TKR-740 PC BOARD

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Foil side view (J79-0169-09 B/3)

TX UNIT (X56-3140-10) (B/3) : K,K2,K3

Foil side view (J79-0169-09 B/3)

TX UNIT (X56-3140-10) (C/3) : K,K2,K3

Foil side view

(J79-0169-09 C/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

D500 13P

54 55

Page 93: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DG

S DG

S

S

GD

S

GD SG

D SGD

C23

R210

C26

C33

C34

XF211

C35

R2224

4 5

1 8

5

18

R228

C41

C47

C201

C52

R240

C208

C209

R245

R247 LE

CK

DA

R249

C212

R250R254

C220

C221

C222

SUB PLL

EXT REF

C74

C75

C76

C233

R270

R271

+

+

DVcc

8T

J79-0037-09 A/3

C236

MOD

+

C240 +

++

+

+

C245

C246

C248

C3

FB

GND 1

2

FB

GND 1

2

C4

TC1

C5

TC2

C250

C251

C252

C253

C256

C258

D1D2 D3D4

+

+

+

D6

D201

D202

D203

D206

L102

IC202

C282 C283

L501

L502

C288

C293

R113

CN101EXT REF IN

R505

CN102REF OUT

R506R507

L1L2 R123

L4L7

R517

R130

R518

R131

R134

C102

C104

+

+

+

C107

R149

C111

IC3

TO CVMIC

34

15

IC4

C115

C506C507

C127+

R18

C128

R20

R22

C132

R23R24

Q1

MAINPLL

R25

Q2

Q3

Q4

Q5

Q7

CV

MAIN PLL

C143

C144

4 5

1 8

R180

R1

R181 DDS

R2

R182

R183

R5

R6 R7R8 MAIN

VCO

R191

R48R49

Q208

R590R591

R592

R64

D503

SUB PLL

CV

L204

IC100

L209

IC301

IC304

IC305

34

15

34

15

CN1DRV OUT

CN2

CN3

Q241

C591C592

C594

L240

L241

L244

L247

R204

R205

C20

C21

C25

C27 C28

C29

C30

C31

C45

C22

8

C1C2

C7

C8

C9

D5

C27

1C

272

CN

103

CN

104

L5L6

L11

IC1 G

IO

R13

R14

R15

R16

R17

R19 R

21

R27Q

6

R47

R54

L202

L208

C10

C12

C14

C17

C70

Q21 1 2

35

C61

89

116

R3

R4

C16

5

C16

6IC10

6

R24

4

R25

2

C73

C23

5

R27

2

C23

9

C24

4

Q10

7

C28

4C

292

R10

1R

105

R11

4

1213

1213

124 M

OD

TO MIG

EVT

EST

DT

CK

NC

NC

SD

AS

CL

LDT

RPT

CP

NC

DP

EXR

CV

TR

EVFW

DG

ND

PAG

B B B PAB

261

1

89

116

24

1213

124

R11

7

R11

8R

119

R12

2

R12

4 R51

5

R51

6

C11

2

C11

3

C11

8

C50

1C

119

C50

2

CF1

C51

0

C51

1

R19

0R

192

R58

8

IC10

9

L242

L248

C32

12A

UX 8T

GN

DR

PT PCR

EVFW

DH

/L B B BPA

B1

R22

3

Q17

Q18

IC20

0

IC20

3

C10

9

D50

MA

IN

D51

SU

B

D52

TX

R15

0

R26

R18

4R

186

R55

R56

R57

C16

7

R59

3

C18

6

C59

5

R21

3

R21

4

R22

4R

225

R22

7

C20

3

C21

0

X20

1

C21

1

C21

4C

215

C21

8

C21

9

L105

C28

5

C28

6

R50

2C

P

DP

EN

R50

3

R50

4

X10

1

C12

6

Q20

1

L203

L205

C58

4R

202

R20

3R

209

XF2

10L1

06

C11

4

IC10

3O G I

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (A/3) : E

Component side view (J79-0037-09 A/3)

TX UNIT (X56-3102-70) (A/3) : E

Component side view (J79-0037-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC1 3F

IC3 9H

IC4 9G

IC100 10H

IC103 5Q

IC106 9E

IC109 5J

Ref. No. Address

IC200 4L

IC202 6L

IC203 4J

IC301 7M

IC304 7J

IC305 4K

Q1 6H

Ref. No. Address

Q2 6F

Q3 7H

Q4 8F

Q5 8G

Q6 7G

Q7 4I

Q17 4L

Ref. No. Address

Q18 4L

Q21 6D

Q107 7I

Q201 6N

Q208 4I

Q241 7L

D1 5H

Ref. No. Address

D2 5F

D3 5H

D4 5F

D5 7H

D6 7F

D50 4L

D51 4L

Ref. No. Address

D52 4L

D201 5N

D202 5N

D203 6N

D206 5B

D503 4L

56 57

Page 94: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

SGD

S

GD

S

GD

S

GD

J79-0037-09 A/3

C22

C24R211

R215

R217 R218

R219

R221

C36

C37C38

C39 C43

R241

C58

C62

C213

Q11

B

C

E

R251

Q12

C216

R253

Q14

D

S

GC68

Q15

R257

R258

C71

R260R265

4 5

1 8

C79

R269

++

+

C80

C232

C82

R275

C242

C247 +

+

C249

C6

C254

C259

Q10

2

C260

Q109

C264

D205

+

C265

Q110

23

15

Q113

Q114

L104

C277

C278

C280

C287

C290

C291

C296

C297

C298

R102

R106

R108

R109

D11

R112

R501

R509

R121R510

R511

R129

R512

R138R139

45

18

L13

L14

C101R141

C106

C108

R145

78

114

R147

C504 C505

R10R11

R12

C124

C125

C131

C133

C136

R28

C138

R29

Q9

R30

C529

R31

R32

R34

R35

R36

R37

C147

R38

R185

R9

R41

R43R44

R46

R580

D101

R51

R587

Q203

Q205

Q206

Q207

C171

R62

C172

L201

R69

L206

L207

R73

IC107

R79

IC110

G

O

+

+

+

+

+

+ +

+

+

I

R88

Q242

L243

C13

C16C19

R208

R21

6

R22

0

C40

C42

C46

R24

2

R24

3

C72

C22

5

C77

C23

7

R27

3

R27

4

C25

7

C26

2

C27

4

C27

5

IC20

5

G OI

G OI

C28

9

C29

4

C29

5

R51

3

IC2

C50

8

C12

3

C51

2

C13

4

C53

3

45

18

R58

1R

582

R58

3R

584

R58

5R

589

Q20

2

C16

8

C16

9

C17

0

IC10

8

O G I

C58

6

C58

7C

588

C58

9

Q24

0

C59

3

L246

R21

2C

206

C20

7

C66

C22

3

C22

4

R26

2

R26

3

R26

4R

266

R26

7

R26

8

C24

1 C24

3

C25

5

Q10

6

Q10

8

C26

1C

263

C26

6

C26

7

C26

8

C26

9

Q11

2

L101

Q11

5

L103

C27

0

C27

9

C28

1

IC20

4

R10

0

R10

7

R11

5

R12

0

R13

7

C10

0

C10

3

R14

2

R14

3R

146

C11

0

C11

6

C13

0

C14

0C

141

C14

5

R50

R52

D10

3R63

R72

R74

R77

C18

7

L210

R78

C18

8

R86

R87

R89

R61

R22

6

C57

C64

C65

D20

4

IC20

6

L503

R13

2 R13

3

R14

0

R14

4C

135

C13

9

C17

3 C17

4

R65

C17

5

R67

R68

IC10

5

C11

R20

6

C50

C51

C53

C54

C55

C56

C59

C60

C63

Q13

R25

9

C78

C23

8D7

D12

L15

C10

5

R15

1

Q8

R33

R39

R40

R42

R45

R70

R71

IC10

23

34

16

4

15

R85

C15

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (A/3) : E

Foil side view (J79-0037-09 A/3)

TX UNIT (X56-3102-70) (A/3) : E

Foil side view (J79-0037-09 A/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC2 3H

IC102 9N

IC105 9L

IC107 7H

IC108 3E

IC110 9J

IC204 8D

Ref. No. Address

IC205 4G

IC206 9H

Q8 9Q

Q9 8P

Q11 7P

Q12 7P

Q13 7Q

Ref. No. Address

Q14 6Q

Q15 7C

Q102 9B

Q106 9B

Q108 9C

Q109 8B

Q110 6C

Ref. No. Address

Q112 6C

Q113 6B

Q114 6B

Q115 9E

Q202 7F

Q203 8Q

Q205 8B

Ref. No. Address

Q206 7D

Q207 6H

Q240 5I

Q242 7I

D7 8P

D11 8Q

D12 8Q

Ref. No. Address

D101 7B

D103 7C

D204 6G

D205 8C

58 59

Page 95: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C411

C412

C413

C420

C425+

C430

1

2

3

4

Q301

Q308

15

23

L302

L304

L305

L308

J402

OUT

IN

R301

R303

R304

R306

R308

R3101 GND

FB2

1 GND

FB2

R312

R313R314R316

CN301DRV IN

CN302

R320

CN308RF OUT

R324R325

R338

REV DET

J79-0037-09 B/3

J79-0037-09 C/3

R339

C301

TH301

C311 B

C317 +

+

+

+

+

+

+

+

C319

R358

R359

C320

C322

C324

AUX

C325

C329

C353

D303

D304

D305

D320

IC302

IC303

R40

3

C43

1

C43

2

Q30

2

Q30

41

6

3

34

16

4

45

18 4

5

18

Q30

9

R30

0

R31

1R

315

R31

7

R31

9

CN

304

CN

305

R32

1

CN

306

+B

CN

307

GN

D

R32

3

R32

6

R32

7

R32

9

C30

3

C31

0

C31

3

R35

4

R35

5

R35

7

C32

1

C32

7

C32

8

PAB

B B B H/L

FWD

REV

PC RPT

GN

D8T A

UX

121

R36

7

C33

1

C33

3

C33

4

TS30

1

C34

8

C34

9

C35

4

D30

8

D31

0

D31

8

C41

0L3

01

L303

L306

L307

R30

5

R32

2

R32

8

C30

6R

360

C33

0

FWD

DET

C34

1

IC60

1

D30

6

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (B/3) : E

Component side view (J79-0037-09 B/3)

TX UNIT (X56-3102-70) (B/3) : E

Component side view (J79-0037-09 B/3)

TX UNIT (X56-3102-70) (C/3) : E

Component side view

(J79-0037-09 C/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

IC302

5P

IC303

5I

IC601

5G

Q301 5K

Q302 8I

Q304 6H

Q308 5J

Q309 4H

D303 7F

D304 5J

D305 6G

D306 9L

D308 9D

D310 7G

D318 4H

D320 4M

60 61

Page 96: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J79-0037-09 B/3

J79-0037-09 C/3

C414

R330

C302

C304

C305

C315

C316

C326

C332

D5001

3

CN

502

INO

UT

C30

7

C31

2

C33

5

C33

6

C33

7

C33

8C

339

C34

0

TKR-740 PC BOARD

TX UNIT (X56-3102-70) (B/3) : E

Foil side view (J79-0037-09 B/3)

TX UNIT (X56-3102-70) (B/3) : E

Foil side view (J79-0037-09 B/3)

TX UNIT (X56-3102-70) (C/3) : E

Foil side view

(J79-0037-09 C/3)

PC BOARD TKR-740

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4

Ref. No. Address

D500 13P

62 63

Page 97: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAMNote : The components marked with a dot ( ) are parts of layer 1.

IO1

IO2

IO4

IO5

IO6

IO7

IO3

BR

DS

W2

DS

W4

DS

W3

DS

W1

SS

W3

IAL

A16

A18

A15

A12A

7

A6

A5

A17

A14

A13 A

8

A9

A11

EV

R

ES

R

MU

T

EV

C

ES

C

OE

C

SD1

SD2

SD0RDY

MIS

SC

RSSI

CK

DT

ESR

EVR

SCL

SDA

DP

CP

EPR

LDR

CVR

EVT

EST

DT

CK

SDA

SCL

LDT

PRT

CP

DP

EXR

CVT

VCE

FWD

REV

CS0

BLT

EN7

SW6

SW5

SRST

BCLK

SW4

EST

EVT

BEAT

SW3

SW2

SW1

MD

S

INC

HM

T

HS

DS

TOS

FW

D

SP

SR

EV

CV

TTO

VC

VR

VC

EV

S2

RS

SI

OP

T

RA

S

PRT

FL2

FL1

FL0

PF

3

IAD0

IAD1

IAD2

IAD3

IAD4

IAD5

IAD6

IAD7

VS

1

PF

0

PF

1

PF

2

PF

3 IS IAL

IRD

IWR

IAD

15

IAD

14

IAD

12

IAD

11

IAD

9

IAD

8

PF

6

PF

5

IAC

K

D0

D1

D2

D3

D4

D5

D6

D7

IAD

1

PF

2

IAD

0

PF

0

IAD

2

PF

1

IAD13

IAD14

IAD15

IACK

D5

D6

D3

D7

D1

D4

A10

D2

SD

0

SD

7

SD

6

SD

5

SD

4

SD

3

SD

2

SD

1

D0

A0

A1

A2

A3

A4

SA

7

SA

6

SA

5

SA

4

SA

3

SA

2

SA

1

SA

0

CS1

IAD4

IAD5

IAD6

IAD7

IAD8

IAD9

IAD10

IAD11

IAD12

IWR

IRD

IS

PF

5

FL1

FL2

FL0

IRQ

2

PF

6

VS

4

VS

3A

UX

I1

A0

A1

A2

A3

A4

A5

A6

A7

A11

A10

A18

A17

A14

A13

A9

A12

A15

A16

A8

IRQ

2

AU

XI3

EPR

PAG

LDR

MDAT

CK

DT

MON

SC

RPTT

AUXI2

RST

SD4

SD5

SD6

SD7

SA1

SA2

SA3

SA4

SA5

SA6

SA7

WR

CS1

RD

TEST

CS

1

CS

0

TX

D1

RX

D1

SC

L

SD

A

PT

T

CP

DP

RD

Y

BC

LK

RD

WR

LDT

SR

ST

BEAT

SP

SH

MT

IAD3

EV

CC

KD

T

RA

SH

SD

STO

SM

ISM

DS

INC

HO

K

TOV

PTT

SW3

SW4

SW5

SW6

EN7

MDAT

SW2

SW1

HOK

BLT

RS

T

PAG

RSSI

DT

CK

IO7

IO6

IO5

IO4

IO3

IO2

IO1

MON

VS

4

VS

2

VS

1

OP

T

VS

3

SC

TX

D1

RX

D1

MO

N

AU

XI1

AU

XI2

AU

XI3

OE

CE

SC

DT

CK

TEST

EXR

CVT

CVR

FWD

MUT

RPTT

DSW6

DSW5

DSW4

DSW3

DSW2

DS

W5

DSW1

DS

W6

SS

W6

SS

W5

SS

W4

SS

W3

SS

W2

SS

W1

BE

AT

SA0

SD3

IAD

10

IAD

13

SS

W4

SS

W1

SS

W2

SS

W5

SS

W6

R40 1k

R43 1k

R42 1k

R41 1k

R37 1k

R36 1k

L1

C32

100p

C33

100p

C34

100p

C35

100p

C36

100p

C37

100p

R30 1k

R44

3.3k

R35

3.3k

C53

100p

C54

0.01

u

C55

100p

R45

33k

R31 1k

R32 100k

R26

31k

R22

90

R23

11k

R23

31k

R29

310

0

R29

010

0

R28

610

0

R25

747

k

R26

71k

R27

41k

R28

710

0

R28

410

0

R28

110

0

R24

61k

R24

41k

R24

14.

7k

R23

81k

R23

61k

R23

51k

R23

41k

R24

91k

R29

710

0

R30

110

0

R30

010

0

R29

910

0

R29

810

0

R210 1k

R200 470

R199 100

R204 0

R209 0

R208 0

R211 1k

R203 1k

R197 0

R191

4.7k

C33

010

0p

R36

31k

R36

21k

C32

910

0pR

361

1k

R36

01k

R35

91k

R35

81k

R37

21k

C32

510

00p

C32

710

00p

C32

610

00p

C192

0.01u

C38

100p

C39

100p

C40

100p

C41

100p

C42

100p

C43

100p

C44

100p

R202 1k

L7

C46

100p

C45

100p

C32

810

0p

C33

110

00p

C28

0.1u C29

0.01

u

C31

1000

p

C30

10u1

6

C27

1000

p

C7

47u2

5

C11

470u16C8

1000

p

C9

47u2

5

R7

470

C10

47u25

R6

1MC5

330u

25

C4

1000

p

R21

31k

C16

80.

1u

C16

710

u10

C172

10u10

C20

147

0p

C23

10.

01u

C20

0

470p

C23

2

0.01

u

C152 470p

C183 0.01u

R349 47k

R350 47k

R351 47k

R352 100

IC24TC74HC4040AF-F

1Q12

2Q6

3Q5

4Q7

5Q4

6Q3

7Q2

8GND

9Q1

10CLoCK

11CLEAR

12Q9

13Q8

14Q10

15Q11

16VCC

C205

0.01u

C204

470p

C227

0.01u

C228

470p

C224

27p

C225

15p

R344

0

X2

16.5

15M

Hz C223

27p

CP4 1k

CP5 1kCP6 1k

CP7 1k

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

767778798081828384858687888990919293949596979899100

R15

147

k

R15

047

k

R14

947

k

C15

6

0.01

u

R346 100

R347 100

R158 47k

R17

51k

R17

21k

R17

9

R18

3

R18

7

R224 1k

R23

9

R218 1k

R226 1k

R225 1k

R157 1k

R156 1k

R221 1k

R222 1k

R223 1k

R250 1k

R159 47k

R214 1k

R215 1k

R216 47k

R27

8

R27

5

R27

1

R26

8

R26

4

R26

0

R24

51k

R24

21k

R25

310

0

R25

510

0

R25

810

0

R26

110

0

R26

510

0

R26

910

0

R27

210

0

R27

610

0

CP

1447

0

CP

1547

0

CP

11k

CP

21k

R162

47k

C22

1

0.01

u

R348 100

R291 4.7k

C22

2

0.01

u

C226

0.01u

R345

47k

R343

4.7k

R160

100

C202 470p

C229 0.01u R29

5

47k

C13

0.1u

R8

2.2

C12

470u16

C16

64.

7u10

C16

510

00p

C16

410

00p

1

VIN

L

VC

C1

AG

ND

1

VR

EF

L

VR

EF

R

VIN

R

CIN

PR

CIN

NR

CIN

NL

CIN

PL

VC

OM

VO

UT

R

AG

ND

2

14

VC

C2

15

VO

UT

L

LRC

IN

BC

KIN

DIN

DO

UT

XT

I

XTO

CLK

IO

VD

D

DG

ND

MC

MD

ML

28

RS

T

C17

010

u10

C16

9

10u1

0

C19

3

0.1u

R23

210

0

R23

010

0

R22

810

0

CN701

15A

22

5B2

3E

N7

4C

K5

DS

6G

ND

CN700

1B

2S

W1

3S

W2

4S

W3

5S

W4

6S

W5

7S

W6

C73

9

1000

p

C175

0.01u

C107

10u10

C106

10u10

C16

24.

7u10

C16

14.

7u10

R227 1k

R212 1k

C187 0.01u

R219 47k

R220 47k

R36

71k

R36

61k

R36

51k

R36

41k

R36

91k

R36

81k

C33

410

00p

C33

510

00p

C33

210

00p

C33

310

00p

C33

610

00p

C33

710

00p

R34

247

k

R35

347

k

R35

447

k

R35

547

k

R35

647

k

R35

747

k

R34

147

k

R34

047

k

R33

847

k

R33

647

k

R33

547

k

R33

947

k

D38DA204U

D20DA204U

D15DA204U

D25DA204U

D30DA204U

D11DA204U

D34DA204U

1STRB

2DATA

3CLK

4Q1

5Q2

6Q3

7Q4

8VSS

9QS

10Q’S

11Q8

12Q7

13Q6

14Q5

15OE

16VDD

D8DA204U

D9DA204U

D6DA204U

D10DA204U

D16DA204U

D12DA204U

C31

6

0.01

u

IC29BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

R217 1k

CP700470

CP701470

CP703470

C70

6

0.01

u

C70

7

0.01

u

CP702470

L12 10u

L9 10u

L13 10u

C26

10u1

0

C23

0.01

u

C20 1u

L6 10u

C25

10u1

0

C22

0.01

u

C19 1u

C18

0.1u C21

0.01

u

C24

10u1

0

D1DA204U

1234567891011121314151617

A3

18A

219

A1

20A

021

I/o0

22I/o

123

I/o2

24G

ND

25I/o

326

I/o4

27I/o

528

I/o6

29I/o

730

CE

31A

1032

oE

IC15

TC

74V

HC

245F

T

1D

IR

2A

1

3A

2

4A

3

5A

4

6A

5

7A

6

8A

7

9A

8

10G

ND

11B

812

B7

13B

614

B5

15B

416

B3

17B

218

B1

19G

20V

CCC

208

0.01

u

R188

47k

C20

9

0.01

u

C210

220u6.3

C151 0.01u

R71

470k

C77

100p

C76

1u

R69

100k

R66

100k

R70

56k

C83 0.01u

C13

11u

25

C13

210

0p

R12

133

k

R12

256

k

C13

7

47u6

.3R

129

100k

R13

012

0k

C13

810

u10

R12

822

0k

C126 0.01u

R24

0

R25

21k

R28

21k

R28

51k

R28

31k

C30

610

00p

C30

710

00p

C30

510

00p

C30

410

00p

CN6

1 RRA

2 RTA

3 RPTT

4 ExMON

5 GND

6 I/01

7 I/02

8 I/03

9 I/04

10 I/05

11 I/06

12 I/07

C52

100p

C51

100p

C50

100p

C49

100p

C57

100p

C58

100p

R46

68k

C59

5600p

C6

1000

p

C3

1u

R4

10k

R5

10k

C79

10u1

0

C78

10u1

0

R19

51k

C194

10u10C203

0.01u

R207 47k

R205 1k

R206 1k

R161 47k

R262 47k

R266 47k

R28

01k

R27

047

k

R27

347

k

R29

2

R28

9

R27

9

R27

7

R29

4

R25

91k

R327 1k

R326 1k

C30

810

00p

C30

910

00p

C31

010

00p

C31

210

00p

C31

110

00p

CP11 470

CP10 470IC16

TC

74V

HC

245F

T

1D

IR

2A

1

3A

2

4A

3

5A

4

6A

5

7A

6

8A

7

9A

8

10G

ND

11B

812

B7

13B

614

B5

15B

416

B3

17B

218

B1

19G

20V

CC

R10

7

22k

R105

22k

C13

4

100p

R10

6

220k

R174

47k

C17

4

1800

p

C17

3

180p

R17

7

47k

R17

8

47k

R17

3

22k

R18

5

47k

C171

0.01u

R18

4

22k

C17

8

270p

R18

6

47k

C17

6

10u1

0

C17

9

2700

p

R182

47k

R10

8

22k

R11

0

330k

C13

5

100p

R10

9

47k

R23

7

47k

R152

47k

R94 0

R95

100k

R11

90

C10

510

u10

R96

120k

VR701R05-3442-05

CN705

1V

LO2

VLI

3G

ND

4B

LT5

B6

GN

D7

PT

T8

MIG

9M

IC10

HO

K11

MD

AT12

NC

13N

C14

NC

R18

1

10k

R17

6

100k

C18

0

10u1

0R

171

150k

C15

8

1000

p

C15

9

10u1

0

R16

7

22kR16

6

22k

C157

0.01u

R16

4

100k

C15

4

10u1

0R

165

120k

C18

410

0p

R16

8

22k

R39

4.7k

C56 1u

R38

18k

R16

9

10k

C61

0.02

2u

C80

10u10

C86

4700

p

C84

4700

p

R74

2.2k

C90

0.01

u

R72

2.2k

R73

2.2k

C186

0.01u

C181

10u10

C207

220u6.3

C212

1u

C213

1u

R10

0

C256

0.01u

R16

47k

D14DA204U

D19DA204U

D24DA204U

D37DA204U

R31

847

k

R31

747

k

R31

647

k

R33

147

k

R115

0

R116

0

C1 0.01u

R1 100

C2 1u

Q11DTC363EU

R3

47k

R19

2

10k

C191

1u

C19

0

12p

C18

9

12p

R33

7

47k

2SK1824-AQ5

R288

47k

R193

0

C18

5

0.01

u

R19

0

47k

C206

10u10

C214 1u

C211 220u6.3

R196 47k

R29

647

k

C96

0.01

u

IC14BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

R72

21k

R72

01k

R73

21k

R73

11k

VR70010k

R716

68k

R71

8

1k

C715 1000p

C714 1000p

R733 6.8k

R719 680

C718 100pC71

6

10u1

0

R71

1

4.7k

Q709DTC144EUA

Q706DTA114EUA

Q707DTC144EUA

Q710DTC144EUAQ708

DTA114EUA

R706

220

R710330

R709220

R707

330

R708

220

D705

B30-2198-05

D704

B30-2197-05

D703

B30-2198-05

R72

1

0

D708DA204U

D711DA204U

D706DA204U

D712DA204U

C73

4

0.01

u

R72

7

10k

C732

0.1u

R72

5

10k

R734

10k

R723

1k

C72

7

1.5u

10

2SC4116(Y)FQ701

C73

1

47p

R72

6

220k

C729

0.1u

C730

0.1u

R724

6.8k

C72

8

1.5u

10

2SA1586(Y,GR)FQ700

C73

5

10u1

0

R72

8

150k

R73

0

10k

R72

9

100k

R717 1k

CN703

1

2

C717 100p

C719 470p

C721 100p

C723 470p

R189

4.7k

C73

3

0.1u

R11

7

0

R14

71.

2k

R14

61.

2k

R14

51.

2k

R14

81.

2k

C31

9

1u25

C32

0

1u25

D17DA204U

D22DA204U

C322

1u25

C321

1u25

R370 1k

R371 1k

C31

8

100p

C31

7

100p

C32

4

0.1u

C32

3

1000

p

R143 1k

R144 1k

R141 100

R142 100

C150 1u25

C155 1u

D5DA204U

D7DA204U

C14

2

1000

p

C14

0

1000

p

D4DA204U

D3DA204U

R13

9

120k

C15

3

1u

R13

8

100k

R13

6

10k

R13

7

10k

C14

5

0.01

u

C14

3

1uR

124

27k

C10

210

0p

R10

433

k

C108 0.01u

C10

010

u10

C12

5

1u

R10

0

27k

R12

3

10k

R103

56k

R140

0

R13

3

27k

R13

2

10k

C12

7

10u1

0

C144 1u

C14

1

1000

p

C13

6

68u6

.3

R12

7

12k

R12

6

10k

C177 1u

R12

0

0

R11

8

0

R194 18k

IC37BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

R101

47k

R13

5

27k

C14

8

1u25 C146

1u25

C147

1u25

C68

1u25

C60

100p

R47

100k

R49

18k

R48

47k

C88 1u

R76

47k

C87

1500p

C89

750p

R78

47k

C91

1uR

8047

0k

C66

0.01

u

C12

310

0p

R13

410

0k

Q9DTC114EUA

R33

4

3.9k

Q8DTC144EUA

Q10DTC144EUA

Q16DTC114EKA

Q14DTC114EKA

R15

41.

2k

R15

31.

2k

R329 100

R328 1kC101 10u10

C160 1u

D18DA204U

D21DA204U

C133 0.01u

Q15DTD123TK

Q13DTD123TK

Q12DTC114EUA

R125

1k

C12

8

1u25

C12

9

1u25

R114 0

C13

0

1u25

R180 47k

R24

71k

R24

31k

R25

61k

R25

41k

R25

11k

R24

81k

L11

C18

8

3p

X1L77-1956-05

14.745M

L4

L5

R34 1k

R33 1k

L2

L3

C74

1

10u1

0

C74

0

10u1

0

C74

2

10u1

0

IC705TA78L05FF

CoMINoUT

C70

8

0.1u

C70

9

0.1u

C71

0

0.1u

C71

3

0.33

u

C71

2

0.33

u

C71

1

0.33

u

C73

8

1000

p

C724

100p

C70

510

0p

C70

310

0p

C70

110

0p

C70

010

0p

R70

4

4.7k

R70

0

4.7k

R70

1

4.7k

R70

2

4.7k

R70

3

4.7k

R70

5

4.7k

C72

5

0.1u

R302 1k

R303 1k

R304 1k

R305 1k

R155 1k

R325 1k

R324 1k

R323 1k

R322 1k

R321 1k

Q2DTC114EUA

C31

5

0.01

u

R2

10k

C14

1u25

R9

47k

D31DA204U

D27DA204U

D26DA204U

D35DA204U

C31

310

0p

C30

110

0p

C30

210

0p

C30

310

0pD39DA204U

D13DA204U

D28DA204U

C15

100p

C750 0.1u

C149 100u6.3

R13

147

k

C18

2

1u

R380

1k

R306

10k

R30

7

47k

R31

4

47k

R31

5

47k

C13

933

p

C163 100u6.3

CN5

1 B

2 FWD

3 EXR

4 CVT

5 CVR

6 RD

7 RSSI

8 SPO

9 SPO

10 SPI

11 GND

12 GND

13 SPG

14 SPG

C70

210

0p

C70

410

0p

IC46

TC

7S32

FU

-F

1IN

B2

INA

3G

ND

4oU

TY

5V

CC IC

47T

C7S

32F

U-F

1IN

B2

INA

3G

ND

4oU

TY

5V

CC

1IN

B

2IN

A

3G

ND

4oU

TY

5V

CC

IC5NJM78L08UA-ZB

GND

IN oUT

IC4TA7805FQ

GND

IN oUT

IC6TA7805FQ

GND

IN oUT

IC35TC7S32FU-F

1 INB2 INA3 GND 4

oUTY

5VCC

IC25TC7S04F-F

1NC

2INY

3VSS4oUTY

5 VDD

IC49TC7S32FU-F1 INB

2 INA

3 GND 4oUTY

5VCC

C30

010

0p

1IN

/oU

T

2oU

T/IN

3G

ND

4C

oNT

5V

CC

R28

22(1/2W)

R29

22(1/2W)

R27

22(1/2W)

R712

100(1/2W)

R714

100(1/2W)

R713

33(1/2W)

R71

568

(1/2

W)

R75

668

(1/2

W)

W1

W1

1

HSD0

LSD0P92

IACK

EPR

BYTE

CNVss

PAG

LDR

RESET

Xout

Vss

Xin

Vcc

NMI

MDAT

TEST

MAIN

CK

DT

MON

SC

RPTT

AUXI2

25

CHECK

26

PT

TP

C0

PC

1

TX

D1

RX

D1

SC

L

SD

A

TX

D

RX

D(H

OO

K)

CP

DP

RD

Y

* HO

LD

* BC

LK

RD * WR

LDT

SR

ST

CS

1

CS

0

A19

50

A18 51

A17

A16

A15

A14

A13

A12

A11

A10

A9

Vcc

A8

Vss

A7

A6

A5

A4

A3

A2

A1

A0

IWR

IRD

IAL

IS

75PF3

76

PF

2

PF

1

PF

0D

7

D6

D5

D4

D3

D2

D1

D0

FW

D

RE

V

CV

T

CV

R

RS

SI

VC

E

AU

XI1

AV

ss

AU

XI3

VR

EF

AV

cc

IRQ

2

PF

6

100

PF

5

1C1+

V+

C1-

C2+

C2-

V-T2oUT

8R2IN

9 R2oUT

T2IN

T1IN

R1oUT

R1INT1oUTGND

16VCC

S706S40-2441-15

IC38TC7S00FU-F

1IN

B

2IN

A

3G

ND

4oU

TX

5V

CC

S700 S701 S702 S705S704S703

IC10R3111H421C-F

GNDVDD oUT

R310

560

R311

560

R75

7

47k

CN11

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

CN21

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

CN3

1SPI

2SPG

3VLO

4VLI

5GND

6BLT

78C

8HOK

9PTT

10EXR

11SW1

12SW2

13B

14B

15SW3

16SW4

17TEST

18SW5

19SW6

20EN7

21MDAT

22DT

23CK

24GND

25MI

26MIG

CN702

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

IC3NJM78L05UA-ZB

GND

IN oUT

IC23NJM4558E-ZB

1

4V-

5

8V+

1

4V-

5

8V+

IC40NJM4558E-ZB

1

4V-

5

8V+

IC12NJM4558E-ZB

1

4V-

5

8V+

IC32NJM4558E-ZB

1

4V-

5

8V+

1

4V-

5

8V+

IC33M62364FP-F

1VIN1

2VoUT1

3VoUT2

4VIN2

5VDD

6LD

7CLK

8DI

9VIN3

10VoUT3

11VoUT4

12VIN4

13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

IC704NJM78L05UA-ZB

GNDINoUT

IC706NJM78L05UA-ZB

GNDINoUT

1V

CC

2IN

3N

C1

4D

C5

NFA

6N

FB

7B

S8

GN

D9

NC

210

oUT

1

4 V- 5

8V+

IC34NJM4558E-ZB

1

4V-

5

8V+

1

4V-

5

8V+

CP3 1k

L10

R92 0

R91 0

R93 0

R86 0

R90 0

CN706

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

IC703BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

D71

0

MIN

ISM

DC

0750

2F

CN4

1 SPM2 AUXO63 RXG4 AUXO55 RA6 AUXO047 RD8 AUXO39 TA

10 AUXO0211 TD12 AUXO113 DG14 TXG15 AUXI316 NC17 AUXI218 SC19 AUXI120 ExPTT21 TDX22 ExMON23 RXD24 NC25 NC26 NC27 NC28 NC29 NC30 NC

IC702BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

1CHECKBLT

EN7

SW6

SW5

BYTE

CNVss

P87

P86RST

Vout

Vss

Xin

Vcc

NMI

WR

RD

SUB

RDY

PBO

SW4

SW3

SW2

SW1

25

EST

26

EV

T

PR

T

BE

RT

P67

P66

VS

4

VS

3

VS

2

VS

1

OP

T

TOV

SP

S

RA

S

TOS

HS

DS

HM

T

INC

MD

S

MIS

IAD

15

IAD

14

IAD

13

IAD

12

IAD

11

50

IAD

10

51IAD9

IAD8IAD7

IAD6

IAD5

IAD4

IAD3

IAD2

IAD1

Vcc

IAD0

Vss

A7

A6

A5

A4

A3

A2

A1

A0

D7

D6

D5

D4

75D3

76

D2

D1

D0

MU

TE

I/O7

I/O6

I/O5

I/O4

I/O3

I/O2

I/O1

AN

7

AN

6

AN

5

AN

4

EV

R

ES

R

AN

1

AV

ss

AN

O

VR

EF

AV

cc

EV

C

ES

C

100

OE

C

J700

87654321

9

10

C736 100p

C737 100p

C722 100p

C720 100p

IC701BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

IC700BU2114F

1SIN

2CK

3LATCM

4SOUT

5EN

6RST

7GND1

8GND2

9GND3

1008

1107

1206

1305

1404

1503

1602

1701

18VDD

5VAVR

8VAVR

DET

BUSY

TX

POWER

TA TD

RA RD

RXD

TXD

8VB

5C

TXD

RXD

SPG

CONTROL UNIT (X53-4210-10)(A/4) CONTROL UNIT (X53-4210-10)(B/4)

CONTROL UNIT(X53-4210-10)(C/4)

RESET

4V

PAB

B

SPO

5C

(1)(2)(3)(4)(5)(6)(7)(8)

AVR5V

MI

DETAGND

AVR

MIG

VOL

COUNTER

PTTIPTTO

DETI

DETO

LSDO

RA

HSDO

TESTO TESTI

ANI

ANI

CHECK

CHECK

RTA RD

RATD

TA

RA

RXI

RXO

SP RRA

RPTTIRPTTO

HSD

AGC

5V

RTA RRA

MOD

BUS BUFFER

BUS BUFFER

BEAT SHIFT

INVERTER

SURGEPROTECTOR

MULTIPLEXER

VOLTAGEDETECTOR

AF AMP

AF AMP

AF AMP

D/A CONVERTER

AF AMP

CODE4 CODE2CODE3 OPTIONCODE1

TO SELECT

AF MUTE

MULTIPLEXERMULTIPLEXER

NAND GATE

INVERTER

INVERTERRSSI MUTE

INVERTERINVERTER

OR GATE

SURGEPROTECTOR

SURGEPROTECTOR

D3-5,7

SURGEPROTECTOR

SURGEPROTECTOR

D17,22

AVR

AVR

AVR

SHIFTREGISTER

CURRENTPROTECTOR

LEVELCONTROLLER

LEVELCONTROLLER

AF AMPSPG

SP

MIG

MI

GND

CK

DT

MDAT

EN7

SW6

SW5

TEST

SW4

SW3

B

B

SW2

SW1

EXR

PTT

HOK

8C

BLT

GND

VLI

VLO

SPG

SPI

NC

SW

6

SW

5

SW

4

SW

3

SW

2

HO

K

MIC

MD

ATNC

NC

SW

1

PT

T

EN

7

MIG

GN

D

BLT CKB

5B2

GN

DB

5A2

DS

VLI

GN

D

NC

VLO N

C

NC

TE

ST

/SP

KR

RE

MT

I/O

RX

UN

IT (

X55

-)-C

N6

TX

UN

IT (

X56

-)(A

/3)-

CN

3

D-S

UB

CO

NN

EC

TOR

CONTROL UNIT(X53-4210-10)(D/4)

SHIFTREGISTER

SHIFTREGISTER

SHIFTREGISTER

MULTIPLEXER

DC SW

DC SW

DC SW

DC SW

232CTTL

D701LA301DB(N)

D700LA301DB(N)

7SEGMENT

7SEGMENT

D707HSM88AS-E

D709HSM88AS-E

AF DETECT

AF DETECTOR

D6,8-10,12,16

SURGEPROTECTOR

IC7AT29C02090TU

FLASH ROM

A11A

9

A8

A13

A14

A17WE

VC

C

NC

A16

A15

A12A

7

A6

A5

A4

IC1730622M4-103GPU

CPU

IC36NJM4558E-ZB

AF AMP

IC22NJM4558E-ZB

AF AMP

IC13NJM4558E-ZB

AF AMP

IC1830622M4-103GPU

CPU

AD/DA

IC27PCM3000E

CODEC

IC30AD2185BSTZ133

DSP

IC31NJM4558E-ZB

AF AMPSURGEPROTECTOR

D13,26-28,31,35,39

D11,14,15,19,20,24,25,30,34,37,38

SURGEPROTECTOR

B

PAB

B

PAB

B

PAB

B

PAB

B

PAB

INT SP

IAD3

IAD4GND

IAD5

IAD6

IAD7

IAD8

IAD9

IAD10

IAD11

IAD12

GND

CLKIN

XTAL

VDD

CLKOUT

GND

VDD

WR

RD

BMS

DMS

PMS

IOMSCMS

PF

4P

F5

GN

D

PF

6

IRQ

2

DT

0

TF

S0

RF

S0

DR

0

SC

LK0

VD

D

DT

1

TF

S1

RF

S1

DR

1

GN

D

SC

LK1

ER

ES

ET

RE

SE

T

EM

S

EE

EC

LK

ELO

UT

ELI

NE

INTEBR

BR

EBG

BG

IAD13

IAD14

IAD15

IACK

VDD

GND

IS

IAL

IRD

IWR

D8

GND

VDD

D9

D10

D11

GND

D12

D13

D14D15

D16

D17

D18

D19

GN

D

D20

D21

D22

D23

FL2

FL1

FL0

PF

3

PF

2

VD

D

PW

D

GN

D

PF

1

PF

0

BG

H

PW

DA

CKA0

IAD

0

IAD

1IA

D2

RA

RXG

DET

DEG

SC

RSSI

CKDT

ESR

EVR

SCL

SDA

DP

CP

EPR

LDR

GND

CVR

NC

NC

B

B

B

NC

NC

NC

MOD

TO

MIG

EVT

EST

DT

CK

NC

NC

SDA

SCL

LDT

PRT

CP

NC

DP

EXR

CVT

REV

FWD

GND

PAG

B

B

B

PAB

2SK1824-AQ1

BEATSHIFT

47k

1k 1k 1k1k1k1k1k1k1k 1k47k

47k

47k

47k

47k

IC48TC7S32FU-F

OR GATEIC46-48

MIC SELECT

IC39BU4094BCFV

SHIFT REGISTER

IC42ADM202EARWZ

RS232C TRANCEIVER

IC45LA4422-E

AF POWER AMP

D702B30-0864-05

INT REF

EX REF

REFERENCE

DC SW

Q706-710

IC1TC7S66FUF

MULTIPLEXER

D706,708,711,712

SURGEPROTECTOR

4.8V

0V

4.5V

4.8V

0V

4.8V4.7V

5.0V

5.0V 4.9V

5.0V 4.7V

4.9V

4.9V

8.0V

10.2V

12.3V

12.1V

0.5V

4.8V

2.8V

2.8V

13.0V

6.5V11.5V

1.2V0V7.1V

5.0V

5.0V

0V

5.0V

0V

4.5V

4.4V

4.4V

0V 4.9V

0V 1.2V

2.8V 2.8V

2.8V

4.9V

4.5V

4.5V

4.5V

4.5V

4.5V

4.5V

5.0V

5.0V

0V

5.0V 12.7V

12.0V5.0V

10.2V5.0V

4.6V0V

4.9V

0V

0V

4.8V

4.7V

2.2V

2.8V

0V

4.9V0V0V

4.9V0V

13.0

V0V0V0V0V

5.0V

5.0V

0.4V

0V

4.8V

4.5V

Page 98: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAMNote : The components marked with a dot ( ) are parts of layer 1.

-t

-t

C21

1

8p

R16

31k

CN3

21

C10

6

47u1

0

R169

10k

L15

10u

R60

100

R28*

1oS

CIN

2oS

CO

UT

3V

CC

1

4M

IXoU

T

5V

CC

2

6IF

1IN

7D

EC

1

8IF

1oU

T

9N

DP

S

10IF

2IN

11D

EC

2

12G

ND

213

IF2o

UT

14Q

UA

D

15A

FoU

T

16N

-RE

C

17F

ILIN

18F

ILoU

T

19N

-DE

T

20C

-DE

T

21R

SS

I

22V

RE

F

23G

ND

1

24M

IXIN

R39

1

10k

R12 1k

R75

100k

R16

8

1.2k

R42

0

L20

1u

C55

0.01

u

L364

*

1 FSADJUST

2 REFIN

3 REFoUT

4 DVDD

5 DGND

6 MCLK

7 SCLK

8 SDAT 9FSYNC

10FSELECT

11PSEL1

12PSEL0

13AGND

14IoUT

15AVDD

16CoMP

C32

947

0p

C92 4p

R14

5

68

C14

6

0.01

u

C58

1000

p

R27*

2SC2873(Y)FQ7

C95 4p

C179

220pR188

0

L12

100n

R22 1k

R14

8

5.6k

C90

0.01

u

R11

1

2.2k

R185

0

C35

1000

p

C24

0.01

u

C1

5p

R19

1

0

L13

82n

C13

4

22u1

6

R12

5

100

R49

*

CF4L72-1028-05IN oUT

L65

33n

C15

8

0.01

u

R90

680

C67

*

R10

5

68

R10

8

47k

C29

0.01u

C70*

X2

44.4

MH

z

R13

1.8k

R37

27

R18

2

100k

C15

3

1000

p

R394

0

C38

447

0p

C17

3

0.1u

L16*

R82 22

L40

R38 0

R98 68

R38

30

R12

0

0

R161

2.7k

C41

0.01

u

R30

310

0

R12

8

68

C1529p

2SC3357-AQ1

C45

1000

p

R118

100k

C16

4

1000

p

R14

9

150k

1 AoUT2 A-IN3 A+IN4 V- 5

B+IN

6B-IN

7BoUT

8V+

R13

8

68

CF3L72-1027-05IN oUT

L8*

Q37DTC114EUA

R1890

R30

410

0

R84

10k

R153

10k

R55

0

C84

47u6

.3

R38

70

C34

1000

p

L1

R103

100

R10

9

22k

C47

15p

R18

6

1k

C10

5

47u1

0C

108

0.01

u

R7

47

R93 68

C40

247

0p

C19

1

0.1u

R14

4

100k

R41

*

L2

10u

L5 47n

C17

47p

C20

8

0.1u

D4

1SV

283F

R104

22R152

10k

R47

100k

R95

1.5k

C18

9

27p

R31*

C18

6

0.1u

L14

10u

C23

4p

L9 10u

R52

100

L11

*

C72

0.01

u

C10

4

68p

C89

0.01

u

C19

6

10u1

0

IC17AM1-G

GND

RFIN RFoUT

L17

10u

1O

UT

PU

T

2V

+

3IN

PU

T+

4IN

PU

T-

5V

-

C97

*

C74

1000

p

C17

5

1000

p

C10

0

4p

C12

20.

1u

A1W02-1982-15

124

53 6

C32

7*

C19

7

1000

p

R39

2

22k

C163

9p

L48

10u

R17

6

100k

R12

4

100

Q22DTC114EUA

C13

5

0.01

u

C11

1

0.1u

C26

1000

p

C168

0.01u

C9

1u

R160

4.7k

R66

100k

R18

4

1k

R197

15k

R147

2.2k

R172

100k

R134

1.5k

L31

R158

4.7k

C17

1

0.47

u25

R11 1k

R65 1k

R73

470

C87

*

C17

2

0.1u

C50

15p

R20 10

XF4

C21

2

0.01

u

R39010k

R54

10k

CN2

1AoUT

2A-IN

3A+IN

4V-

5B+IN

6B-IN

7BoUT

8V+

CN10

C12

4

22u1

6

GND

INoUT

R64

100

C37 0.01u

*L3

R39

100

L52

R15

7

3.3k

C61

0.1u

C20

1000p

R164

47k

R386

0

R14

2

22

R39

310

k

1AoUT

2A-IN

3A+IN

4GND

5B+IN

6B-IN

7BoUT

8V-

R198

1k

C8

0.22

u35

L30

1u

C16

7

0.1u

R16

2.2kC

44

15p

C181

220p

C60

0.1u

C19

1000

p

1IN

/oU

T

2oU

T/IN

3G

ND

4C

oNT

5V

CC

C57

0.5p

C49

0.5p

R126

18k

C78*

R38

10

R97 22

C1130.01u

R80

1.2k

C316*

R24 0

R15

1.8k

Q352SJ106-F(GR)

R13

6

47

R165

47k

XF1

R8

0

C16

0

0.1u

Q38DTC114EUA

L23

47n

C13

0

4p

D10DAN235K

C13

6

3p

L27

R30

210

0

R19

93.

9k

C20

7

1000

p

C39

147

0p

R167

220k

2SC3357-AQ5

C73

1000

p

CF2L72-1028-05IN oUT

R121

100k

C16

1

1000

p

L25*

C21

12p

C27

0.01

u

R43

0

R10

7

560k

L28

2SC3120-FQ3

R99

1.5k

1IN/oUT 2oUT/IN

3GND4CoNT

5 VCC

C11

5

0.1u

C85

0.01

u

1AoUT

2A-IN

3A+IN

4V-

5B+IN

6B-IN

7BoUT

8V+

C19

2

0.1u

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

R14 56

C30

60.

01u

CN1

RX IN

R35

180

C40

15p

C10

*

L19

47n

C56 10u10

R68

820

IC3BU4094BCFV

1S

TR

B2

DAT

A3

CLK

4Q

15

Q2

6Q

37

Q4

8V

SS

9Q

S

10Q

’S

11Q

8

12Q

7

13Q

6

14Q

5

15O

E

16V

DD

R101

22

L66

180n

C3

1000p

L4

10u

C21

0

22u1

6

IC16NJM78L05UA-ZB

GND

INoUT

R16

6

470k

R12

7

680

R46

4.7k

R13

7

22

C17

6

0.1u

R13

1

47

R78

10k

D12

1SS

355

C65

*

R177

100k

L32

L58

47n

R50

2.2k

C21

9

100p

C180

0.1u

R38

9*

C11

6

0.01

u

R15

1

2.2k

C13

7

0.01

u

R56

22k

C15

15p

C148

0.01u

R15

6

3.3k

R63

470

R85

1.8k

R61

4.7k

C188

1000p

R141

680

C5

0.01

u

C13

9

68p

C120

0.01u

R76

1.8k

L3844.85MHz

CN5

1 2

C31

1000

p

C21

7

1000

pR

74

470

C20

4

10u1

0

C33

22p

C123

5600p

R174

10k

C201

0.1u

C187

1000p

R53

10k

C22

2*

R15

5

22k

C59

10u1

0

R139

100

C43

15p

R19

6

220

R6

22k

C16

15p

CN61 RA

2 RXG

3 DET

4 DEG

5 SC

6 RSSI

7 CK

8 DT

9 ESR

10 EVR

11 SCL

12 SDA

13 DP

14 CP

15 EPR

16 LDR

17 GND

18 CVR

19 NC

20 NC

21 B

22 B

23 B

24 NC

25 NC

26 NC

XF3

C11

2

0.1u

C129

0.039u

R34 1k

C88

22u1

6

R2

18k

2SC3722K(S)Q17

R146

680

IC6BU4053BCF

1Y1

2Y0

3Z1

4Z

5Z0

6INH

7VEE

8VSS

9C

10B

11A

12X0

13X1

14X

15Y

16VDD

R12

3

680

C119

0.01u

C22

0*

R170100k

C127

5600p

C20

9

0.01

u

C38 1u

L22

68n

2SB1386(R)Q16

C19

8

10u1

0

C48

10u10

C12

47p

C13

1

68p

R51

2.2k

TC

2

8p

C76

10p

R14

3

68

R13

2

10k

C39

39p

C15

7

1000

p

C38

847

0p

C183

0.1u

R11

4

390k

C93

68p

C25

47p

C11

7

1000

p

L363

* Q29DTC114EUA

R26

100

Q19DTC114EUA

C46

1000

p

R193

22

R4

47k

L47

120n

R130

100

R129

1.5k

R10

0

47

C17

4

1000

p

C11

0

0.01

u

1oS

CIN

2oS

CO

UT

3V

CC

1

4M

IXoU

T

5V

CC

2

6IF

1IN

7D

EC

1

8IF

1oU

T

9N

DP

S

10IF

2IN

11D

EC

2

12G

ND

213

IF2o

UT

14Q

UA

D

15A

FoU

T

16N

-RE

C

17F

ILIN

18F

ILoU

T

19N

-DE

T

20C

-DE

T

21R

SS

I

22V

RE

F

23G

ND

1

24M

IXIN

CN7REF IN

CN4

1 2

R175

220k

R19

5

330

R9

56

R57

100

C66

1000

p

C6

0.01

u

C19

5

1000

p

C1090.01u

C184

0.1u

C13 1000p

L7 10u

C16

9

10u1

0

L6 10u

CF5L72-1029-05

R10

1k

X1

44.4

MH

zC75

27p

R18

1

1k

C40

4

0.1u

D2

1SV

283F

C14

7

0.01

u

R69 0

R67

820

C98

18p

D11

DAN202U

R62

0

C21

3

2.2u

10

2SB1386(R)Q20

C12

5

3p

R19

2

100k

TC

1

8p

C91

0.01

u

C17

0

10u1

0

L35

120n

R45

10k

C16

5

0.47

u25

C190

27p

R187

0

C21

8

22p

C2

1000

p

C54

1000

p

R79

680k

C10

7*

R18

10k

R38

40

1 VIN1

2 VoUT1

3 VoUT2

4 VIN2

5 VDD

6 LD

7 CLK

8 DI

9 VIN3

10 VoUT3

11 VoUT4

12 VIN4 13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

C18

1000

p

R81

10k

C83

0.01u

R16

21.

5kC12

6

0.1u

C96

12p

C182

220p

R179

0

L51

1u

R21

560

R38

8*

R15

0

150k

C200

47u6.3

C15

9

0.01

u

C38

7

0.1u

R119

39k

R44

47

D6

1SV283F

R14

0

100k

C13

3

0.01

u

C178

220p

R171

1k

C14

5

0.02

2u

C15

6

1000

p

1O

UT

0

2V

CC

RF

3V

PR

F

4C

PoR

F

5G

ND

6fin

RF

7fin

RF

8G

ND

9O

SC

x

10D

SC

in

11F

o/R

D

12R

E_E

N13

IF_E

N

14C

LOC

K

15D

ATA

16LE

17G

ND

18fin

IF

19fin

IF

20G

ND

21C

PoI

F

22V

PIF

23V

CC

IF

24O

UT

1

C166

8pC

7

1000

p

C16

2

0.01

u

C36

1000p

L64

10u

C30

1000

p

C77

0.1u

C11

1000

p C12

8

2.5p

D31SV283F

R122

68

L43

C33

347

0p

CF1L72-1027-05IN oUT

R48 47

L26

47n

C82

470u

16

L42

10u

R71

12

R77 1k

C12

1

3p

R92

680

R17

8

100k

R18

0

330

R1

1M

R13

3

68

C11

8

0.01

u

C14

3

0.01

u

R190

0

L49*

L53

CP11k

R96 47

L41

C18

5

0.1u

C14

1

3p

C17

7

0.1u

C40

30.

1u

C94 4p

L54

1u

L37

10u

C138

0.033u

C151

0.01u

C13

2

0.1u

C38

9

0.1u

R3

47k

R83

680k

C86

*

Q18DTC114EUA

R116

0

L44

C321*

R32

100

L33 100u

R382

0

C14

4

22p

C53

10u1

0

C15

0

47u6

.3

C202

0.1u

R30

100

R70

47

L3944.85MHz

R38

50

C15

4

0.01

u

L21

47n

C4

0.01

u

C194

22p

C80

*

R15

4

22k

R19

10k

L46

10u

C228

0.1u

C226

0.01u

C11

4

1000

p

L10*

XF2

C14

0.1u

35

R72

10

C19

9

47u6

.3

R36

180

C193

68p

C71

27p

R11

5

2.2k

R58

4.7k

R135

10k

C32

*L34

120n

Q36DTC114EUA

L18

10u

R33 0

C34

6

120p

GND

IN oUT

R5

0

IC2NJM78L05UA-ZB

GND

INoUT

11A

21Y

32A

42Y

53A

63Y

7G

ND

84Y

94A

105Y

115A

126Y

136A

14V

CC

C14

2

0.1u

C15

5

22p

C313*

R38

01k

R10

6

2.2k

C22

9

0.1u

R173

10k

R10

2

68

1AoUT

2A-IN

3A+IN

4GND

5B+IN

6B-IN

7BoUT

8V-

C14

0

0.1u

35

C14

9

1000

p

C10

1

0.02

2u

R25 10

C22

1

4p

C20

347

u4

C62

0.01

u

R159

2.7k

C38

5

470p

2SC4081(R)Q26

C79

15p

TH

1

15k

TH

2

15k

L36

10u

L45

120n

L55

100u

L56

10n

L24

100u

270

R28

270

C97

330 2p

8CW

330

C67

5p

NO

270

C327

4p

NO

120p

0

L16

22p

NO0

1p

15p

NO0

15p

C321

L79-1873-05 22n

27p

4p22p

C107

L79-1899-05

C313

12n 8p22p

4p

R49

L79-1900-05

C80

12n

NARROW

18p

L49 C316

15n

C32

2p

22n

12p

R389

15n

R388

12n

C222

10p

220n

L363

12n

9pL34-4598-05

L8

82n

5p 2p

8pL34-4586-05

120p

39n

1000p

L3R27

L34-4599-05

2p

1000p

C65

2pL34-4599-05

4pNO

6p

L34-4586-05

18pNO

6p

L34-4598-05

NO

27p 6p

DESTINATION MARK

L79-1901-05

NO

L11

6pL79-1902-05 NO

L10

18p

CV1

L79-1872-05 NO

C70

15p

R31

VCO-B

15p

C87L25

150

R41

8p

C78

82

8C1

C86

82

100

8p330

C220 L364

RF AMP

AVR

RF SW

DOUBLEBALANCEDMIXER

RIPPLEFILTER

UNLOCK SW

SHIFT REGISTER

SQ SW

SQ SW

CO

NT

RO

L U

NIT

(X

53-4

210-

10)(

A/4

)-C

N1

2-70

0-12

0-11 NO

NO NO

NO

NO

NO

NO

NO

NO NO NO

K3

K2,E

K

X55-308X-XX

0-12 K3

2-70

0-11

K2,E

K

X55-308X-XX

0-12 K3

2-70

0-11

K2,E

K

X55-308X-XX

AVR

8C18C1

8C1

8C2 8C2

8C18C 18C18C1 8C18C1 8C 18C18C 1

AVR

8CN

8CN8C N

8CW8C W

SQ SW

8C1

5C 1 5C1

5C15C1

RX UNIT (X55-308X-XX)

8C 2

TX

UN

IT

(X56

-)(A

/3)-

CN

102

XF4

XF3

2SK508NV(K53)Q8

VCO OSC

2SC4215-F(Y)Q14

BUFFER AMP

FREQ.CONTROL

D4,6

2SK508NV(K53)Q9

VCO OSC

2SC4226-A(R24)Q6

BUFFER AMP

IC19TC74HC14AF-F

INVERTER

WIDE

2SC3357-AQ32

IF AMP

Q16,18-20,22

DC SW

IC20AD9835BRUZ

DDSD9

B30-2130-05

INDICATOR

IC302LMC7101BIM5

UNLOCKDETECTOR

IC301LMX2352TMX/NP

PLL

2SC3357-AQ31

IF AMP

2SC4081(R)Q28

SQ AMP

IC5NJM2904E-ZB

DC AMP

IC7TA31137FNG

FM IF IC

IC21TC7S66FUF

ANALOG SW

MULTIPLEXER

IC9M62364FP-F

D/A CONVERTER

8C28C2

VCO-A

5C1

CVREPRCPDPLDRREF IN

ESRDTCKRSSI

CVREPR

CPDP

LDRREF IN

ESRDTCK

RSSI

CVREPRCPDPLDRREF IN

CPDP

CVRCVRCVREPR

LDRREF IN

2.2u10V

2.2u6.3V

C10

2.2u10V

RF LOCAL AMPQ1,3,5

FREQ.CONTROL

D2,3

2SC3722K(S)Q10

DC SW

IC14NJM2904E-ZB

DC AMP

2SC3722K(S)Q12

DC SW

Q13DTC114EUA

DC SW

IC13NJM78L08UA-ZB

AVR

2SC4081(R)Q33

REF AMP

2SC3357-AQ25

IF AMP

2SC3357-AQ24

IF AMP

2SK1824-AQ30

DC SW

IC4TA7808SQ

AVR

5C1

RSSI

CP

CK

DP

CVREPR

ESRDT

LDRREF IN

2SC4081(R)Q39

BUFFER AMP

Q342SJ106-F(GR)

SQ SW

SQ SW

Q36-38

IC18TC7S66FUF

ANALOG SW

IC15NJM4558E-ZB

AF AMP

IC12NJM4558E-ZB

AF AMP

ACTIVEFILTER

IC8TA31137FNG

FM IF IC

R23

1.2k

IC10AT24C08A10SU18

EEPROM

IC11NJM4558E-ZB

AF AMP

4.2V

4.9V

0.9V

7.2V 7.0V

1V

A:6.7VB:6.0V

A:0VB:2.1V

0.8V

6.0V

W:0VN:1V

W:0VN:7.1V

7.3V

8.0V

W:0VN:8.0V

8.0V

W:7.1VN:0V

W:0VN:1.0V

W:1VN:0V

W:0VN:7.1V

W:7.1VN:0V

7.6V6.7V

A:0VB:5.0V

A:2.1VB:0V

A:6.0VB:6.7V

W:8VN:0V

W:0VN:4V

W:0VN:8V

W:5.0VN:0V

5.0V 7.4V

5.8V

4.0V

1.2V

1.2V

4.3V

4.0V

0.9V 7.5V5.0V

8.0V

SQ CLOSE:7.9VSQ OPEN:5.5V

SQ CLOSE:0VSQ OPEN:2.4V

7.8V

3.4V

W:0VN:1V

W:0VN:5V

W:1VN:0V

W:5VN:0V

4.4V

1.8V

W:8.0VN:0V

4.4V

4.4V

W:1.0VN:0V

0V

SQ CLOSE:4VSQ OPEN:0V

0-11:146-153.995MHz0-12:136-142.995MHz2-70:158-165.995MHz

B0-11:154-162MHz0-12:143-150MHz2-70:166-174MHz

A

Page 99: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAMNote : The components marked with a dot ( ) are parts of layer 1.

-t

-t

R600

0

R605

0

R42 47

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V+

C51

2

470p

D6

1SV

283F

R117

100

GINOUT

C502 470p

R11

3

120

C27

0

0.01

u

C591 470p

C589 470p

C210

82p

L101

1u

R182

4.7k

R12

1

0

C13

1000

p

C29

6

10p

C25

8

0.01

u

C74

47p

R11

5

100

R105

330

D4

1SV283F

R12

2

100

2SK1824-AQ206

C31

0.01

u

R512 0

C23

2

2.2u

16

C241

1000p

C23

6

1.0u

16

R137

10k

C54

470p

C29

3

1000

p

C135 10u10

2SK2596-EQ14

0.1u

R57

470

C5

8p

R13

1

1k

TC

2

8p

R16

10k

Q21UMC5

C23

3

18p

C17

3

0.01

u

C10

3

0.01

u

L6 4.5T

C29

7

10p

R59

2

15k

D20

6

MIN

ISM

DC

0750

2F

C8010u10

R27

122

0

(1/2

W)

R26

22

R227

47k

C42

0.01

u

C510 0.1u

GINOUT

L7 10u

470p

C20

1

15u1

0

C59

5

0.01

u

C25

4

100p

C77

0.01

u

C23

8

1000

p

C24

7

1u16

C256

1000p

R17

47k

C25 8p

C28

1

1000

p

R22

5

10k

R11

9

10k

C593 0.1u

C56

470p

R10 0

C72

0.01u

R501 100

R12

9

1k

C249

33p

TC

1

8p

R10

2

47k

C62

470p

C27

5

1000

p

R591

10k

R13

470

R511 0C

215

0.01

u

C26

8

10u1

0

R49

12k

C119

220pR6

100k

IC202AD9835BRUZ

1 FSADJUST

2 REFIN

3 REFoUT

4 DVDD

5 DGND

6 MCLK

7 SCLK

8 SDAT 9FSYNC

10FSELECT

11PSEL1

12PSEL0

13AGND

14IoUT

15AVDD

16CoMP

C55

470p

1O

UT

PU

T

2V

+

3IN

PU

T+

4IN

PU

T-

5V

-

C17

0

0.1u

C82

10p

C16

7

1000

p

C34

0.01

u

R101

1M

R251100

R33

10k

C22

2

270p

R48

10k

CN101EXT REF IN

R183

47k

R13

4

1k

C225

1000p

C284

0.01u

R26

4

27k

C35

10p

R240 100

C17

1

1000

p

D20

3

1SV

283F

D205HSM88AS-E

IC4BU4094BCFV

1STRB

2DATA

3CLK

4Q1

5Q2

6Q3

7Q4

8VSS

9QS

10Q’S

11Q8

12Q7

13Q6

14Q5

15OE

16VDD

C277

56p

R61 470

R26527k

R581

0

C11

4

0.01

u

R35

1.8k

C23

5

27p

R222

10k

C11

2

1000

p

C28922p

C27

2

47p

C22

3

270p

R5890

C186

0.1u

L13

10n

R25

31k

L14

47n

R5

100k

R37

15k

0

C141

1000p

C51

100p

R18

6

4.7k

C14

5

0.01

u

IC3 M62364FP-F

1 VIN1

2 VoUT1

3 VoUT2

4 VIN2

5 VDD

6 LD

7 CLK

8 DI

9 VIN3

10 VoUT3

11 VoUT4

12 VIN4 13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

R41

1.5k

C20

8

10u1

0

R77

470

C17

2

1000

p

L244

68n

R14

6

100

R140 39k

D1

1SV

283F

L24610u

R507 100

R228

100k

R28

10k

2SC3722K(S)Q3

C18

8

1000

p

R74

220

1 AoUT2 A-IN3 A+IN4 V- 5

B+IN

6B-IN

7BoUT

8V+

C73

0.01u

R19

0

0

L1

10u

C76

47p

C26

2

0.01

u

R18

5

100

R10

7

470

C592 470p

R506 100

L208

R50 47

0

R7

33k

R31

100

C10

56p

C78

2200

p

R515 0

L2

10u

C206 270p

R78

330

1234567G

ND

8 9

10 11 12 13 14V

CC

C24

0.01

u

R590

10k

R267

10k

C8

47p

C282

0.01u

R45

0

2SC4215-F(Y)Q242

C12

7

47u1

0

C26

7

0.02

2u

R15

470

CN2

PAB1

B2

B3

B4

H/L5

FWD6

REV7

PC8

PRT9

GND10

8T11

AUX12

R86

100

L503

10u

C10

5

1000

p

C14

0

0.01

u

CN1 DRV OUT

R21

5

120k

R52

330

L104

100u

R15

1

6.8k

C27

4

0.1u

C32

22u1

6

R588

0

R517 0

R206

470k

R11

2

18k

C20

9

1u25

R25

0

220

D202

1SV283F

C26

9

0.01

u

C26

0

10p

X201

19.2MHz

C21

1

1000

p

C16

6

100p

C68

0.01

u

C279

1000p

R55 1k

R79

330

C2981000p

C43

470p

C20

1000

p

R27

2

10k

C13

2

1000

p

C240 10u10

C63

470p

R211

470k

C17

4

47u1

0

C16

1000p D52B30-2048-05

R150

4.7k

L106 1u

C10

0

7p

R40

100

R32

220

C533 470p

R8

27k

C24

6

270p

2SC4215-F(Y)Q240

C25

1

1000

p

Q114DTA114EUA

R14

10k

R18

0

0

CN102 REF OUT

L24310u

R21

3

100

L202

R10

6

100

C6

1000

p

X101

L77-1735-25

C288

1000p

C24

2

10p

C41

0.1u

R27

022

0

(1/2

W)

R47 0

C4

470p

C14 1p

C13

8

47u6

.3

R27

5

56

R14

5

100

C19

1000

p

R59

3

10k

R89

2.2k

R132

120k

C506 470p

C12

5

0.01

u

C250 0.01u

D20

1

1SV

283F

R210

0

C259

0.01u

R109

0

C53

470p

C16

8

22u1

6

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V-

C70

4.7u

16

L501

10n

R65

470k

C26

1000

p

L102

220n

R226 120k

Q12DTC114EUA

D204

1SS355

C29

2

0.01

u

D12

1SS355

C17

10p

D51B30-2130-05

R3 47k

Q8IMH5A

C26

1

10p

C50

470p

C24410u10

C21

1000

p

100

C10

2

0.22

u35

R144 330k

R22

1

56

L201

470n

R63

100

C52

947

0p

XF211L71-0529-05

D50

3

1SS

355

IC100TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

R25

715

0

(1/2

W)

1 INB2 INA3 VSS 4

oUTX

5VDD

R26

2

100

C22

0

0.01

u

R21

6

100k

GIN OUT

C136 47u6.3

R11

8

10k

R10

8

18k

R505 100

C37

1000

p

C38

47p

C10

9

1000

p

C106

470p

L4 10u

R27

100

C27

1p

C10

8

1000

p

R23

18k

C14

7

0.1u

R208

100k

C28

6

150p

C40

22u1

6

C7

12p

L5 5.5T

C12

3

0.1u

R202

0

R24

2

47k

R54 0

Q207DTC114EUA

C505 0.1u

R51

330

C265

0.1u

C24

3

1000

p

C29

470u

16

R133 100k

R1

220

C79

1000

p

R13

033

0

R120 1k

C248 1000p

C18

7

1000

p

C504 470p

L11

100n

C11

1

1u16

C214

10p

R87

100

R11 0

GINOUT

C1

1000

p

R44

39k

R18

1

0

C139 1u16

C13

1

10u1

0

R14

1

1k

C47

0.01

u

C11

0.01

u

C10

4

0.01

u

C253

1000p

C13

0

0.01

u

L247

100u

L240

100u

C25

5

1000

p

R69

56k

CN3MOD1

TO2

MIG3

EVT4

EST5

DT6

CK7

NC8

NC9

SDA10

SCL11

LDT12

PRT13

CP14

NC15

DP16

EXR17

CVT18

REV19

FWD20

GND21

PAG22

B23

B24

B25

PAB26

C2911000p

L209

100u

C280

1000p

R243

10k

C203 0.01u

C285

33p

R14

7

1k

C294

0.01u

C116 0.01uR

204

27k

R27

4

100

R21

7

220

R24

100

C295220p

1A

oUT

2A

-IN

3A

+IN

4G

ND

5B

+IN

6B

-IN

7B

oUT

8V

-

C10

7

22u1

0

C65 100p

R24

9

47k

C110

0.01uC66

1000p

C26

3

22p

R38

18k

R241

47k

R149

10k

R85

100

R62

100k

C26

6

0.02

2u

D5

1SV

283F

C3

470p

D50B30-2130-05

R9

100

C21

6

0.01

u

R46 10

(1/2

W)

CF1L72-1029-05

100

R29

18k

R13

8

12k

R263

47k

L248

470n

R20

10k

R124

0

R269

1k

C218

100p

R25

4

0

R516 0

R209

10k

R10

0

10k

R70

56k

C52

1000p

C26

4

56p

C2

1000

p

R114

0

R212 470

C27

8

1000

p

C508470p

C15

1000

p

R14

3

47k

R22

10k

R88

18k

R19

1

0

C30

1000

p

C21

9

100p

C28

3

270p

R56 1k

R73

100k

GINOUT

C46

0.1u

C29010p

R218

470

C28

7

100p

R244

3.9k

R26

8

15k

R20

5

47k

2SK1824-AQ18

GINOUT

C27

1

470p

C12 1p

R21

9

10k

C11

3

10p

R2

220

R21

470

C245

0.01u

C101

0.01u

C12

4

47u1

0

R4 47k

R72

100

C17

5

0.1u

C22

1000

p

470p

D3

1SV283F

R34

2.2k

C507 220p

CN104

GND1

FB2

C115

0.01u

R27

3

47k

C75

47p

L15

100n

C11

8

220p

C28

1p

C213

0.01u

L204

100u

C59

1000

p

C21

2

150p

L207 1u

100

R245 100

R14

2

100k

R19

2

0

L241

100u

C61

1000

p

D2

1SV

283F

470p

L502

10n

C16

9

0.01

u

C207 270p

C39

470p

L205

470n

R247

100

R224

22k

R587

0

R513 0

XF210L71-0529-05

C12

8

0.1u

C16

5

100p

C501 470p

R39

330

R68

220k

R184

15k

D11

1SS

355

C58

1000

p

C25

7

220p

1A

oUT

2A

-IN

3A

+IN

4V

-5

B+

IN

6B

-IN

7B

oUT

8V

+

2SC4215-F(Y)Q202

R25939

(1/2W)

R220

47k

2SK1824-AQ17

L105

100u

2SC4215-F(Y)Q115

R5840

L206

470n

R51

8

100

R510 0

2SK508NV(K52)Q2

C36

10p

R67

120k

C239 1000p

2SC3356-AQ13

IC102TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

L242

10u

C60

470p

C71

0.01

u

C33

1000

p

R509 1k

R585 0

R25

2

100

C143

4p

C22

4

270p

R30

10k

C59

4

0.01

u

R21

4

820

CN103

GND1

FB2

C23

7

1000

p

R12

100

2SC4215-F(Y)Q201

C57

10u6

.3

C23 8p

C13

3

10u1

0

R26

627

k

R71

470k

R223

15k

R64

470

R19

47

C12

6

0.01

u

R25

815

0

(1/2

W)

C45

22u1

6

C64

100p

R36

4.7k

IC106AT24C08A10SU18

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

C511 470p

C13

4

1000

p

R203

27k

C252

1000p

R43 1k

2SK1824-AQ208

R25

4.7k

C22

1

270p

R12

3

10k

1k

L103 100u

C9

12p

R18

10k

L203

1.5u C14

4

1000

p

R13

9

10k

IC501LMX2352TMX/NP

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

0

D30

5

DS

M3M

A1-

RP

B

R349

22k

R30

5

330

R36

0

330

TS301

S79-0470-05

R33427k

R32

7

330

Q305DTC114EUA

C34

00.

1u

C30

3

1000

p

CN301

R33

9

0

R34

0

1k

C336

4p

D30

8H

SM

88A

S-E

D304

1SS355

2SC

4081

(R)

Q30

1

C3421000p

R34

1

10k

C41

410

p

C32

8

1000

p

1

IN/O

UT

1

OU

T/IN

1

CO

NT

2

4

VS

S

5

IN/O

UT

2

OU

T/IN

2

CO

NT

1

8

VD

D

TH301

50k

C35

0

1000

p

R343

1k

R410

10k

R33

0

12k

C32

3

1000

p

C30

7

10p

R316

47k

C33

010

00p

R34

547

k

C35

210

00p

R323

4.7k

R3372.7k

R318

4.7k

Q310FMW1

C32

9

0.01

u

2SB951A(Q)Q309

R357

1k

C345

0.68u20

C31

7

330u

25

R332

82k

R30

3

330

C31

6

15p

Q302IMH5A

R310220

(1/2W)

R322

10k

R32

55.

6k

CN3051

2

R35

610

0k

L305

110n

CN3021

PAB

B

B

B

H/L

FWD

REV

PC

PRT

GND

8T

12AUX

C34

310

00p

R321

4.7k

L30347n

R40

3

100k

Q308UMC5

C35

810

00p

C421

0.1u

D31

7

1SS

355

R344 4.7k

R33

8

0

C33

20.

1u

R30

81k

TH302

50k

CN308C3531000p

C34

9

1000

p

C314

1000p

D30

6H

SM

88A

S-E

R324

4.7k

C337

3p

R313

1k

C31

0

0.1u

R304

82

R35

047

k

R34

24.

7kC34

1

1000

p

C30

9

0.01

u

C31

3

1000

p

IC601RA07M1317M101

1R

FIN

2G

ATE

V3

DR

AIN

V4

RF

oUT

R40

0

10k

C35

14.

7u10

R315

1k

R32

8

270

R319

68k

Q307FMW1

CN307

R359

82

C34

410

00p

C32

7

1000

p

C32

0

470p

C33

910

00p

IC30

3O

P29

1GS

Z

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B

8

+V

L30147n

R32

910

k

R333

47k

R306

10k

C321

470p

C30

8

330u

25

CN306

R311

47k

C30

50.

01u

C3460.1u

C322

470p

L30247n

R3483.9k

C33

5

1000

p

L306

D30

3

ER

ZV

14D

220

R30

010

0

R320

470k

Q313DTC114EUA

C334

0.47u25

D318

1SS355

C338

7p

C30

6

0.5p

CN3041

2

D50

0

MIN

ISM

DE

190F

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B

8

+V

J402

D30

7H

SM

88A

S-E

C333

0.1u

R314

100k

C30

447

0p

C35

4

1000

p

D31202CZ12(X,Y)F

Q312DTC114EUA R301

47k

C32

6

1000

p

R35

547

k

C32

5

1000

p

R35

4

47k

R34

7

10k

C33

110

00p

C318

1000p

R35

8

330

R32

6

10k

C31

147

u16

C31

5

33p

C30

1

330u

25

R33

5

1k

C35

7

0.1u

C35

5

0.1u

C32

4

1000

p

C31

2

33p

C31

9

470p

R34

61k

C34

8

1000

p

R317

47k

C302

1000p

R312220

(1/2W)

R331

22k

CN502

2

1

3

DESTINATION MARK

5B

Q5

8T

DP

8A

CP

8A

CLK

8A

LEN

DAT

DTE

MOD MOD

Q1

Q5

CVT

5B

150MHz-174MHz

8C

5A

B

LDT

MIG

Q1

MIG

DTEVT

MOD

CK

TO8T

SCL

SDA

Q2

EXR

TO

DP

5B

CP

5C

CVT

INT-REF VCC

EST

CK

DT

EVT

Q4

MOD

5C

MAIN PLL

DP

Q5

UL

CP

CP

MAIN PLL

SUB PLL CV

20MHz

UL

AUX

SUB PLL

136MHz -174MHz

19.2MHz

CV

19.2MHz OSC

MOD

DP

STD MOD

H/L

CP

TO

VO

6

MIC

VO

5

EXT REF

VO6VO5

Q4

5C

CVT

PAG

8C

MOD

8C

5B

CVT

SUB MOD

8B

Q1

SUB MOD

8B

TX UNIT (X56-3140-10)(A/3):K,K2,K3

VCO-B

VCO-ADC SW

VCO OSC

DC SW

FREQ. CONTROL

D2,4

MODULATION

MODULATION

8B

8A

BUFFER AMPBUFFERAMP

DDS

BUFFER AMP

VCOOSC

INVERTER

8T

RF AMP

CO

NT

RO

L U

NIT

(X

53-4

210-

10)(

A/4

)-C

N2

CURRENTPROTECTOR

DC SW

DC SW

D/A CONVERTER

ACTIVEFILTER

AVR

SHIFTREGISTER

TX INDICATOR

8C

5C5C

Q4

DTE

REF

INT-REF VCCRF DETECTOR

REFREF

DTE

DPQ4

CP

5C

REFREF

Q4

CP5C

DP

19.2MHz

SUB MOD

Q5

8C5B

Q1

UNLOCK SW

DC SW

DC SW

RF AMP

RF AMP

8T

5B5BQ2

CVTCVTB5B8CQ1

5ALDT LDT

CP

Q4DP

5C

Q5Q5

Q1

CVT5A

B5B

LDT

8C

Q2

SUB MOD

INT-REF VCC INT-REF VCC

CP

19.2MHz

DP

5C

Q4DP

19.2MHz

CP5C

Q4

Q5

5B

8C

MOD

CVT

8B

OUT

POWERSUPPLY

DRV IN

12B

AUX

12B

+B

B

RF OUT

IN

GND

TX UNIT (X56-3140-10)(B/3):K,K2,K3

TX UNIT(X56-3140-10)(C/3):K,K2,K3

DC SW

DC SW

DC SW

CURRENTSTEERING

CURRENTSTEERING

CURRENTPROTECTOR

VOLTAGEREFERENCE

RF DETECTOR

RF DETECTOR

D306,308

DC AMP

DC SW

DC SW

SURGEPROTECTOR

REVERSEVOLTAGEPROTECTOR

CURRENTSTEERING

POWERMODULE

AN

ALO

G S

W

DC

AM

P/C

OM

PAR

ATO

R

CURRENTSTEERING

MODULATION

RX

UN

IT (

X55

-308

X-X

X)-

CN

7

Q6

136MHz-150MHz

D1,3

FREQ. CONTROL

2SC4215-F(Y)Q102

BUFFER AMP

CURRENTSTEERING

D11,12Q8,11,12

DC SW

IC105NJM4558E-ZB

AF AMP

IC204NJM2903M-ZB

COMPARATOR

2SC4215-F(Y)Q205

RF AMP

FREQ. CONTROL

D201,202

2SC3120-FQ9

RF AMP

IC107NJM4558E-ZB

AF AMP

IC206TC74HC14AF-F

INVERTER

EEPROM

RF AMP

DIFFERENTIAL AMP

Q307

D310

MINISMDC07502F

SURGEPROTECTOR

DIFFERENTIAL AMP

Q310

FBB

B

NC

GND

FB

GND

IC30

4T

C4W

66F

-F

2SC3722K(S)Q4

DC SW

2SC3722K(S)Q7

RIPPLEFILTER

2SK1824-AQ5

MAIN PLL

IC502LMX2352TMX/NP

SUB PLL

2SC4215-F(Y)Q106

DOUBLERD101

1SV128-F

RF SW

D1031SV128-F

RF SW

2SC3120-FQ6

BUFFER AMP

VCO OSC

2SK508NV(K52)Q1

IC109NJM2904E-ZB

BUFFER AMP

C588

C586

R583

R504

R502

C587

R503

C584

R580

R582

2SC4215-F(Y)Q109

RF SW

DC SW

Q17,18

IC200TC4S81F-F

AND GATE

2SK1824-AQ203

DC SW

D7

1SV128-F

RF SW

2SB1386(R)Q11

2SC3120-FQ107

RF AMP

IC305LMC7101BIM5

UNLOCKDETECTOR

LOCKINDICATOR

D50,51

2SC4215-F(Y)Q241

RF AMP

R26

0

18k

L210

100u

2SK302-F(Y)Q15

BUFFER AMP

2SK1824-AQ112

DC SW

Q110UMC5

DC SW

2SK1824-AQ113

DC SW

2SC4215-F(Y)Q108

IC203NJM2904E-ZB

DC AMP

Q304IMH5A

DC SW

IC302OP291GSZ

DC AMP

IC110NJM78L05UA-ZB

IC103NJM78L05UA-ZB

AVR

AVR

IC2NJM78L08UA-ZB

IC205NJM78L05UA-ZB

IC108NJM78L08UA-ZB

IC1TA7808SQ

AVR

AVR

AVR

AVR

2SB951A(Q)Q306

DC AMP

L304L79-0558-05

DC AMP

Q301

A:6.7VB:6.5V

A:1.7VB:0V

A:0VB:1.7V

A:6.5VB:6.7V

2.0V

5.9V

7.6V

2.9V

0.8V

5.9V

6.7V

0.8V

4.3V

4.3V

3.9V

8.0V

5.0V 8.0V

8.0V 5.0V

0V

2.0V 2.0V

2.1V

7.0V

4.0V

1.2V

1.2V

4.3V

0.6V

4.4V

TX:4.0VRX:0V

4.3V

2.7V

Lo TX:0VHi TX:5V

RX:0.2VTX:7.9V

TX:7.0VRX:0V

0.3V

3.3V

4.2V

4.5V

2.2V0.8V

7.2V

0.8VRef INT:0VRef EXT:3.4VRef INT:2.2V

Ref EXT:1.9V

Ref INT:7.8VRef EXT:0V

Ref INT:0VRef EXT:7.8V

4.3V4.7V

RX:0VTX:6V

Hi:0VLo:5V

RX:0.2VTX:7.9V

11.0V

RX:0VTX:2.9V(H)

RX:0VTX:7.3V

RX:12.9VTX:12V

RX:0VTX:8V

RX:0VTX:0.3V

RX:0.3VTX:1.7V

RX:0.1VTX:0.2V

RX:0VTX:7.9V

RX:0VTX:0.7V

A:136-149.995MHzB:150-174MHz

6.0V

5.0V

RX:13.6VTX:13V

0.6V

Page 100: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

TKR-740 SCHEMATIC DIAGRAMNote : The components marked with a dot ( ) are parts of layer 1.

-t

R61 470

R516 0

C12 1p

C17

3

0.01

u

C24

6

270p

C10

2

0.22

u35

C57

10u6

.3

L306R

47 0

R54 0

R25

2

100

R315

1k

C27

5

1000

p

R12

9

1kC

33

1000

p

R21

6

100k

R77

470

R25

31k

C58

1000

p

C8010u10

R203

27k

C21

5

0.01

u

R20

4

27k

R510 0

C73

0.01u

R21

9

10k

C27

8

1000

p

C214

10p

R209

10k

C14 1p

C16

6

100p

R59

3

10k

R582 0

R10

2

47k

R580 1k

C63

470p

C31

0.01

u

R14

10k

C33

4

0.47

u25

C7

12p

C64

100p

R27

2

10k

C33

20.

1u

C54

470p

R26

22

GIN OUT

C29

7

10p

R59

2

15k

R322

10k

D30

6H

SM

88A

S-E

R27

5

56

L104

100u

R24

2

47k

R21

3

100

L240

100u

C26

2

0.01

u

C586 470p

C31

3

1000

p

L14

47n

C115

0.01u

IC102TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

C10

7

22u1

0

IC3 M62364FP-F

1 VIN1

2 VoUT1

3 VoUT2

4 VIN2

5 VDD

6 LD

7 CLK

8 DI

9 VIN3

10 VoUT3

11 VoUT4

12 VIN4 13VIN5

14VoUT5

15VoUT6

16VIN6

17D0

18VDAREF

19RESET

20GND

21VIN7

22VoUT7

23VoUT8

24VIN8

R14

7

1k

C14

0

0.01

u

R28

10k

C60

470p

R32

220

R86

100

R42 47

R5840

R26

4

27k

R184

15k

R40

3

100k

R4 47k

C43

470p

R587

0

CN307

2SK2596-EQ14

C59

5

0.01

u

Q12DTC114EUA

IC30

3O

P29

1GS

Z

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B

8

+V

C8

47p C35

10p

C27

4

0.1u

CN1 DRV OUT

2SK1824-AQ18

C593 0.1u C22

2

270p

R12

2

100

C26

8

10u1

0

C10

5

1000

p

L5 5.5T

R30

8

1k

R10

6

100

CN306

R26527k

R12

3

10k

R144 330k

R32

55.

6k

C32

8

1000

p

CN102 REF OUT

2SC4215-F(Y)Q201

C106

470p

C41

0.1u

C285

33p

C26

7

0.02

2u

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V-

R182

4.7k

L205

470n

D2

1SV

283F

C25 8p

CN3041

2

C42

0.01

u

C284

0.01u

C135 10u10

C47

0.01

u

C34

8

1000

p

C21

6

0.01

u

C510 0.1u

C12

3

0.1u

R26

0

18k

C10

56p

C589 470p

C11

2

1000

p

C15

1000

p

R48

10k

C23 8p

R79

330

R502 100

L247

100u

C250 0.01u

1 AoUT2 A-IN3 A+IN4 GND 5

B+IN

6B-IN

7BoUT

8V+

R87

100

R37

15k

L501

10n

C38

47p

C39

470p

R29

18k

C207 270p

R11

9

10k

1O

UT

PU

T

2V

+

3IN

PU

T+

4IN

PU

T-

5V

-

C23

7

1000

p

R506 100

C75

47p

C29

3

1000

p

2SC4215-F(Y)Q115

R63

100

R133 100k

L24610u

L204

100u

R9

100

C50

470p

C52

1000p

C35

4

1000

p

CN104

GND1

FB2

R30

10k

L202

R19

47

R11

5

100

R12

1

0

C62

470p

R33

0

12k

C30

50.

01u

R21

4

820

C76

47p

R114

0

D3

1SV283F

C18

8

1000

p

CN502

2

1

3

C25

7

220p

R26

8

15k

C218

100p

R14

3

47k

C23

6

1.0u

16

R65

470k

CN2

PAB1

B2

B3

B4

H/L5

FWD6

REV7

PC8

PRT9

GND10

8T11

AUX12

R25939

(1/2W)

R51

330

R10

7

470

D30

8H

SM

88A

S-E

1 AoUT2 A-IN3 A+IN4 V- 5

B+IN

6B-IN

7BoUT

8V+

D51B30-2130-05

L1

10u

R5890

D30

3

ER

ZV

14D

220

R503 100

C13

0

0.01

u

R18

6

4.7k

R26

2

100

C303

1000p

D5

1SV

283F

C28

7

100p

XF210L71-0529-05

C14

4

1000

p

R70

56k

C24

7

1u16

R27

122

0

(1/2

W)

Q21UMC5

C25

8

0.01

u

C33

010

00p

R211

470k

L101 1u

C277

56p

C68

0.01

u

R44

39k

IC100TA75S01F-F

1IN(+)

2VEE

3IN(-)

4 oUT

5 VCC

C291

1000p

R117

100

R18

1

0

L6

4.5T

C13

1000

p

R10

0

10k

R38

18k

C533 470p

C46

0.1u

C26

4

56p

2SC4215-F(Y)Q242

C45

22u1

6

TC

1

8p

X101

L77-1735-25

R23

18k

R41

1.5k

R149

10k

C70

4.7u

16

C507 220p

R14

1

1k

L11

100n

R40

100

R132

120k

C13

2

1000

p

C592 470p

C240 10u10

R101

1M

R140 39k

C18

7

1000

p

C511 470p

C239 1000p

R18

10k

R20

10k

C24410u10

R13

8

12k

C59

4

0.01

u

C79

1000

p

D205HSM88AS-E

R13

1

1k

C32

7

1000

p

CF1L72-1029-05

C587 470p

C20

8

10u1

0

TH301

30k

C11

4

0.01

u

C27

0

0.01

u

C26

1000

p

D52B30-2048-05

C14

5

0.01

u

C280

1000p

C61

1000

p

R105

330

C253

1000p

C584 470p

C4

470p

GINOUT

R507 100

D30

5

DS

M3M

A1-

RP

B

R269

1k

C40

22u1

6

Q110UMC5

R24

9

47k

C27

1p

C74

47p

R51

8

100

CN3021

PAB

B

B

B

H/L

FWD

REV

PC

PRT

GND

8T

12AUX

R313

1k

R32

910

k

R5

100k

R13

470

R14

2

100k

R509 1k

R24

100

C265

0.1u

C19

1000

p

R10

8

18k

C294

0.01u

R22

1

56

C259

0.01u

1A

oUT

2A

-IN

3A

+IN

4G

ND

5B

+IN

6B

-IN

7B

oUT

8V

-

C24

0.01

u

R89

2.2k

R212 470

R26

627

k

R316

47k

C12

5

0.01

u

C9

12p

R73

100k

C32

0

470p

IC200TC4S81F-F

1 INB2 INA3 VSS 4

oUTX

5VDD

R511 0

CN31

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

CN301

TC

2

8p

XF211L71-0529-05

C353

1000p

R109

0

R245 100

R150

4.7k

C213

0.01u

R43 1k

C21

2

150p

C22

3

270p

C139 1u16

R223

15k

C31

0

0.1u

R311

47k

C2

1000

p

C23

2

2.2u

16

C71

0.01

u

C22

1000

p

R513 0

C119

220p

D11

1SS

355

C143

4p

C10

8

1000

p

R137

10k

C34

9

1000

p

R34

2.2k

R218

470

R62

100k

C22

0

0.01

u

R227

47kR206

470k

C17

1

1000

p

2SC3356-AQ13

L24310u

R7

33k

C322

470pR21

470

D1

1SV

283F

L203

1.5u

C65 100p

C24

2

10p

R11

2

18k

C248 1000p

C1

1000

p

L210

100u

C26

0

10p

C32

4

1000

p

C501 470p

R78

330

R210

0

R6

100k

D304

1SS355

R241

47k

C23

5

27p

R27

022

0

(1/2

W)

R27

4

100

C30

1

330u

25

GINOUT

C17

2

1000

p

C116 0.01u

C34

1

1000

p

R13

9

10k

C12

6

0.01

u

L207 1u

IC4BU4094BCFV

1STRB

2DATA

3CLK

4Q1

5Q2

6Q3

7Q4

8VSS

9QS

10Q’S

11Q8

12Q7

13Q6

14Q5

15OE

16VDD

C10

0

7p

C504 470p

2SK1824-AQ206

C29

470u

16

C25

4

100p

R25

715

0

(1/2

W)

C33

5

1000

p

R591

10k

R588

0

C33

910

00p

C591 470p

C56

470p

2SC3722K(S)Q3

R247

100

L106 1u

R25

815

0

(1/2

W)

C13

1

10u1

0

R32

6

10k

CN103

GND1

FB2

R220

47k

R226 120k

C17

4

47u1

0

R27

3

47k

R585 0

R45

0

C249

33p

R14

5

100

R20

5

47k

L502

10n

R21

5

120k

C28

1

1000

p

D318

1SS355

C252

1000p

R12

100

L7 10u

CN305

1

2

R35

1.8k

1234567G

ND

8 9

10 11 12 13 14V

CC

R224

22k

C13

8

47u6

.3

CN308

C282

0.01u

C333

0.1u

C24

3

1000

p

C12

4

47u1

0

R243

10k

C30

1000

p

C16

8

22u1

6

IC304LMX2352TMX/NP

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

R49

12k

C12

8

0.1u

C17

5

0.1u

Q8IMH5A

2SK508NV(K52)Q2

R19

2

0

R120 1k

D20

6

MIN

ISM

DC

0750

2F

CN101EXT REF IN

R33

8

0

C29010p

R183

47k

C51

100p

L4 10u

C32

9

0.01

u

R46 10

(1/2

W)

C26

6

0.02

2u

R15

470

IC601RA30H1317M131

1R

FIN

2G

ATE

V3

DR

AIN

V4

RF

oUT

2SC4081(R)Q301

C10

4

0.01

u

C295220p

L15

100n

R19

1

0

R515 0

C302

1000p

C27

2

47p

L241

100u

R251100

C245

0.01u

R36

4.7k

R71

470k

R13

4

1k

C17

0

0.1u

R19

0

0

R8

27k

C101

0.01u

C32

6

1000

p

L208

R240 100

C241

1000p

R222

10k

X201

19.2MHz

C33

110

00p

R69

56k

C23

8

1000

p

L305

110n

C26

1

10p

R67

120k

L102

220n

L244

68n

C203 0.01u

L105

100u

R68

220k

R10 0

D12

1SS355

2SC4215-F(Y)Q202

2SC4215-F(Y)Q240

C16

9

0.01

u

C11

0.01

u

R50

470

L303

C321

470p

R263

47k

C77

0.01

u

C279

1000p

D50

0

MIN

ISM

DE

190F

C506 470p

R3 47k

L103 100u

C508470p

Q304IMH5A

C28922p

C32

5

1000

p

2SC4215-F(Y)Q102 R52

330

C5

8p

C11

3

10p

GINOUT

R581

0

R17

47k

R228

100k

C53

470p

R72

100

C206 270p

C28

1p

C256

1000p

C59

1000

p

L248

470n

R31

100

GINOUT

C26

9

0.01

u

C3

470p

R2

220

C28

6

150p

R15

1

6.8k

R25

4.7k

R35

5

47k

C21

1

1000

p

L201

470n

R85

100

D50B30-2130-05

C10

9

1000

p

TS301

S79-0470-05

D204

1SS355

L242

10u

R22

5

10k

D6

1SV

283F

C14

7

0.1u

R208

100k

Q108

R33

10k

D50

3

1SS

355

C16

5

100p

L2

10u

L301

C25

5

1000

p

C186

0.1u

D4

1SV283F

Q308UMC5

R501 100

C20

9

1u25

L304L79-0558-05

C34

0.01

u

1OUT0

2VCCRF

3VPRF

4CPoRF

5GND

6fin RF

7fin RF

8GND

9OSCx

10DSCin

11Fo/LD

12RF_EN

13 IF_EN

14 CLOCK

15 DATA

16 LE

17 GND

18 fin IF

19 fin IF

20 GND

21 CPoIF

22 VPIF

23 VCCIF

24 OUT1

R202

0

C21

9

100p

R590

10k

R74

220

R57

470

R244

3.9k

R16

10k

C288

1000p

R25

0

220

C20

1

15u1

0

C36

10p

2SK1824-AQ17

2SC3722K(S)Q4

1A

oUT

2A

-IN

3A

+IN

4V

-5

B+

IN

6B

-IN

7B

oUT

8V

+

D202

1SV283F

C11

1

1u16

C12

7

47u1

0

C82

10p

C78

2200

p

C23

3

18p

C141

1000p

C10

3

0.01

u

2SB1386(R)Q11

C210

82p

C34

00.

1u

C25

1

1000

p

R314

100k

D20

3

1SV

283F

C6

1000

p

R504 100

C22

4

270p

R13

033

0

R35

7

1k

R14

6

100

L302

R22

10k

J402

R18

5

100

C21

1000

p

R11 0

C52

947

0p

L209

100u

R517 0

GINOUT

C11

8

220p

R33

9

0

R18

0

0

C22

1

270p

C136 47u6.3

R267

10k

C26

3

22p

C16

7

1000

p

R505 100

C505 0.1u

R1

220

C20

1000

p

C502 470p

D20

1

1SV

283F

C225

1000p

C30

447

0p

C28

3

270p

C31

7

330u

25

C16

1000p

Q114DTA114EUA

C72

0.01u

R512 0

R11

3

120

IC202AD9835BRUZ

1 FSADJUST

2 REFIN

3 REFoUT

4 DVDD

5 DGND

6 MCLK

7 SCLK

8 SDAT 9FSYNC

10FSELECT

11PSEL1

12PSEL0

13AGND

14IoUT

15AVDD

16CoMP

R11

8

10k

R88

18k

C13

3

10u1

0

C13

4

1000

p

R21

7

220

R32

8

270

L13

10n

C27

1

470p

R39

330

R583 0

C32

22u1

6

R27

100

C37

1000

p

C29

6

10p

C51

2

470p

C66

1000p

R64

470

R124

0

C55

470p

C110

0.01u

L503

10u

R25

4

0

R55 1k

IC106AT24C08A10SU18

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

C2981000p

L206

470n

C17

10p

C29

2

0.01

u

R56 1k

C588 0.1u

R306

10k

C22

8

100u

20

R36

0

1.8k

R30

3

1.8k

R304

12

R359

12

R30

5

1.8k

R35

8

1.8k

R324

1.5k

R30

0

1.8k

R35

4

10k

C42

0

47u1

6

C43

2

330u

25

L308

C43

1

330u

25

R31222

(1/2W)

R31022

(1/2W)

C42

5

100u

20

C43

0

2.2u

10

D32

0

02D

Z5.

6F-X

,Y

L307

C30

6

33p

C31

147

u25

C41

1

4p

C41

0

2p

C41

2

6p

C41

3

3p

C336

1p

C338

1p

C337

1p

C31

6

12p

C30

7

12p

C31

5

33p

C31

2

39p

R32

7

680

C41

412

p

R323

1k

R320

120k

R317

39k

IC302OP291GSZ

1

oUTA

-IN

A

+IN

A

4

-V

5

+IN

B

-IN

B

oUT

B

8

+V

R367

1k

Q309DTC114EUA

C31

9

470p

R321

4.7k

R319

120k

R301

39k

146MHz -174MHz

MOD

Q4

5A

MOD

INT-REF VCC

SUB MOD

MODULATION

LDT

AUX

Q4

8A

5B

EST

Q2

VO5

EVT

5C

INT-REF VCC

UNLOCK SW

TO

5C

Q5

Q4

SUB MOD

MAIN PLL

DP

MOD

Q5

CP

REF

DP

REF

BUFFERAMP

SUB PLL

19.2MHz

5B

LDT

DC SW

CLK

DC SW

8A

CVT

SDA

POWERSUPPLY

DT

CP

CP

TX UNIT(X56-3102-70)(C/3):E

VO6

5C

DRV IN

BUFFER AMP

MIG

CP

INT-REF VCC

Q6

MOD

Q1

Q4Q4

136MHz-150MHz

DTE

STD MOD

DC SW

Q1

B

DC SW

AUX

8C

Q2

IN

CURRENTSTEERING

CVT

RF AMP150MHz-174MHz

TX UNIT (X56-3102-70)(A/3):E

5C

DDS

Q4

5C

8B

8A

CP

MIG

CVT

DP

EXT REF

OUT

LDT

INT-REF VCC

DP

5C

Q4

REF

B

8C

RF OUT

5B

8C

5C

5B

8C

DTE

SCL

CP

Q17,18

DC

AM

P

UL

AND GATE

+B

CVT

DP

8T

DP

DTE

UL

19.2MHz

CURRENTPROTECTOR

Q5

EVT

MOD

VO

5

SUB MOD

REF

DC SW

DC AMP

5B

REF

TX INDICATOR

TX UNIT (X56-3102-70)(B/3):E

8T

8C

CP

CVT

RF AMP

ACTIVEFILTER

CVT

8T

MOD

Q5

CP

5B

5C

TO

5B

BUFFER AMP

DP

8C

20MHz

5B

8A

19.2MHz OSC

SUB PLL CV

Q1

SUB MOD

MIC

Q5

Q2

CP

B

COMPARATOR

RF AMP

DC SW

Q5

DC SW

Q1

CURRENTPROTECTOR

8C

SURGEPROTECTOR

SHIFTREGISTER

PAG

DAT

TO

BUFFER AMP

DT

DC SW

REVERSEVOLTAGEPROTECTOR

CV

5A

CK

DP

5A

19.2MHz

5B

POWERMODULE

Q1

CPDP

8C

VCOOSC

19.2MHz

AVR

Q4

CVT

D50,51

RF DETECTOR

Q1

LOCKINDICATOR

5B

CVT

8T

8B

LEN

EXR

GND

5C

CK

5C

Q5

MOD

MAIN PLL

VO

6

8B

CURRENTSTEERING

LDT

FB

GND

GND

FB

DC SW

HIGHVOLTAGEPROTECTOR

CURRENTSTEERING

MODULATION

DC SW

RX

UN

IT (

X55

-308

X-X

X)-

CN

7

H/L

2SC4215-F(Y)Q109

RF SW

2SC3722K(S)Q7

RIPPLEFILTER

2SK302-F(Y)Q15

BUFFER AMP

FREQ. CONTROL

D201,202

2SK1824-AQ203

DC SW

DC SW

Q8,11,12

IC105NJM4558E-ZB

AF AMP

IC204NJM2903M-ZB

COMPARATOR

D11,12

CURRENTSTEERING

2SC3120-FQ9

RF AMP

IC203NJM2904E-ZB

DC AMP

IC206TC74HC14AF-F

INVERTER

RF DETECTOR

D306,308

VCO-B

VCO-A

CO

NT

RO

L U

NIT

(X

53-4

210-

10)(

A/4

)-C

N2

B

B

NC

2SK508NV(K52)Q1

VCO OSC

D1031SV128-F

RF SW

D1011SV128-F

RF SW

MAIN PLL

2SC4215-F(Y)Q106

DOUBLER

IC301LMX2352TMX/NP

SUB PLL

2SC3120-FQ107

RF AMP

IC305LMC7101BIM5

UNLOCKDETECTOR

IC110NJM78L05UA-ZB

AVR

IC205NJM78L05UA-ZB

IC108NJM78L08UA-ZB

AVR

AVR

IC103NJM78L08UA-ZB

AVR

D2,4

FREQ. CONTROL

VCO OSC

MODULATION

2SC3120-FQ6

BUFFER AMP

2SK1824-AQ5

DC SWFREQ. CONTROL

D1,3

IC109NJM2904E-ZB

BUFFER AMP

D7

1SV128-F

RF SW

IC2NJM78L08UA-ZB

AVR

2SC4215-F(Y)Q241

RF AMP

2SC4215-F(Y)Q205

RF AMP

IC1TA7808SQ

AVR

2SK1824-AQ208

DC SW

2SC4215-F(Y)

RF AMP

2SK1824-AQ113

DC SW

2SK1824-AQ112

DC SW

IC107NJM4558E-ZB

AF AMP

D/A CONVERTER

EEPROM

D310

MINISMDC07502F

SURGEPROTECTOR

Q302IMH5A

DC SW

MOD

TO

MIG

EVT

EST

DT

CK

NC

NC

SDA

SCL

LDT

PRT

CP

NC

DP

EXR

CVT

REV

FWD

GND

PAG

B

B

B

PABQ207DTC114EUA

INVERTER

Ref INT:0VRef EXT:3.4V

RX:0VTX:5.5V

A:0VB:1.7V

2.2V

Ref INT:0VRef EXT:7.8V

0V

0.8V

4.7V

RX:0VTX:4.2V

0.6V

RX:7.0VTX:0V

0.8V

4.5V

4.3V

8.0V

2.7V

4.3V

RX:0.2VTX:7.9V

5.0V

A:1.7VB:0V

7.2V

2.0V

Ref INT:2.2VRef EXT:1.9V

4.0V

Lo TX:0VHi TX:5V

4.3V

3.3V

3.9V

4.3V

Hi:0VLo:5V

4.3V

RX:0VTX:5.3V

8.0V

1.2V

0.8V

5.0V

7.0V

RX:0VTX:3.4V

0.3V

6.7V

TX:4.0VRX:0V

5.9V

0.8V

Ref INT:7.8VRef EXT:0V

RX:0.2VTX:7.9V

1.2V

4.4V

2.9V

8.0V

4.2V

7.6V

2.1V

5.9V

2.0V

2.0V

A:6.7VB:6.5V

A:6.5VB:6.7V

RX:13.1VTX:12.5V

RX:0VTX:2.7V

RX:13.1VTX:12.5V

5.0V

6.0V

0.6V

A:136-149.995MHzB:150-174MHz

Page 101: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

EXPLODED VIEW (K, K2, K3 TYPE)EXPLODED VIEW (K, K2, K3 TYPE)

31

TKR-740

30

TKR-740

A B

1

2

3

C D

EXCITERFINAL

TX

CONTROL

RX

1

2

A49

50

3

40

5

X53 (D/4)

34

12

51

33

X53 (B/4)

18

X53 (C/4)

711

703

712

26

29

27

9

713

14

30

X55

H

711

4Dx2

Dx2

Dx2

Jx2

Jx2

Jx3

Gx2

Jx7

Nx10Jx12

Ex2

Fx2

J

47

714

17

10

X56 (A/3)

29

15X56 (B/3)

9

9

Jx7

Nx10

Jx11

Cx3

Cx14

Cx10

Cx10

Cx11

Kx2

Cx3

J

13

715

708

710

708

704

705

706707

2219

161113

7

38

35

32

37

18

18

36

39

Bx2

H

X53 (A/4) X56 (C/3)

31

IC45

IC601

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.

Page 102: VHF FM REPEATER TKR-740manuals.repeater-builder.com/Kenwood/tkr/TKR-740...Refer to the TKR-740 (K, K2, K3) service manual (B51-8 505-00) or TKR-740(E) service manual (B51-8642-00)

EXPLODED VIEW (E TYPE)EXPLODED VIEW (E TYPE)

33

TKR-740

32

TKR-740

A B

1

2

3

C D

EXCITERFINAL

TX

CONTROL

RX

1

2

A49

50

3

X53 (D/4)

34

12

51

33

X53 (B/4)

18

X53 (C/4)

711

703

712

26

29

27

9

713

14

30

X55

711

4Dx2

Dx2

Dx2

Jx2

Jx2

Jx3

Gx2

Jx6

Nx10Jx12

Ex2J

J

Ix2

47

714

17

10

X56 (A/3)

2915X56 (B/3)

9

9

Jx7

Nx10

Jx11

Cx3

Cx14

Cx10

Cx10

Cx11

Cx3

J

13

715

708

710

708

704

705

706707

22

191611

13

7

71735

37

18

18

36

Mx2

Bx2716

X53 (A/4) X56 (C/3)

28

IC601

25

46

L

L

24

23

24

532

38

39

Kx2

4031

IC45

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.