HS80M HS50M Schematics

7/22/2019 HS80M HS50M Schematics

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HAMAMATSU, JAPAN

Copyright (c) Yamaha Corporation. All rights reserved. PDF Printed in Japan 05.12

POWERED MONITOR SPEAKER

HS80M SPECIFICATIONS..................................... 3HS50M SPECIFICATIONS..................................... 4DIMENSIONS........................................................... 5PANEL LAYOUT...................................... 6CIRCUIT BOARD LAYOUT.................. 7HS80M DISASSEMBLY PROCEDURE

................. 8

HS50M DISASSEMBLY PROCEDURE............... 11CIRCUIT BOARDS........................................ 14HS80M INSPECTIONS............................................... 15HS50M INSPECTIONS............................................... 16BLOCK DIAGRAMOVERALL CIRCUIT DIAGRAMPARTS LIST

CONTENTS

HS80M: 200510-47250HS50M: 200510-26250

HS80M/HS50M

011806PA

SERVICE MANUAL

ECF


2/27

HS80M/HS50M

2

IMPORTANT NOTICE

This manual has been provided for the use of authorized Yamaha Retailers and their ser vice personnel. It has been assumedthat basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under-stood by the users, and have therefore not been restated.

WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per-sonal injury, destruction of expensive components and failure of the product to perform as specified. Forthese reasons, we advise all Yamaha product owners that all service required should be performed by an

authorized Yamaha Retailer or the appointed service representative.

IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization, certifi-cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship ofany form.

The data provided is believed to be accurate and applicable to the unit (s) indicated on the cover. The research engineering, andservice departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitableand changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear toexist, please contact the distributors Ser vice Division.

WARNING : Static discharges can destr oy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect tothis bus).

IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply powerto the unit.

WARNING: CHEMICAL CONTENT NOTICE!The solder used in the pr oduction of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSO EVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handlingfood.

WARNINGComponents having special characteristics are marked and must be

replaced with parts having specification equal to those originally installed.

WARNING: THIS APPARATUS MUST BE EARTHED

IMPORTANTTHE WIRES IN THIS MAINS LEAD ARE COLOURED IN

ACCORDANCE WITH THE FOLLOWING CODE:GREEN-AND-YELLOW : EARTH

BLUE : NEUTRAL

BROWN : LIVE

As the colours of the wires in the mains lead of this apparatus may

not correspond with the coloured markings identifying the terminals in

your plug, proceed as follows:

The wire which is coloured GREEN and YELLOW must be

connected to the terminal in the plug which is marked by the letter E

or by the safety earth symbol or coloured GREEN and YELLOW.

The wire which is coloured BLUE must be connected to the

terminal which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal

which is marked with the letter L or coloured RED.

* This applies only to products distributed by YAMAHA KEMBLE

MUSIC (U.K.) LTD.


3/27

HS80M/HS50

HS80M SPECIFICATIONSGeneral specifications

Type ................................................ Biamp 2-way Powered speakerCrossover Frequency ..................... 2 kHzOverall Frequency Response......... 42 Hz-20 kHz (-10 dB)Dimensiones (W x H x D) ............... 250 x 390 x 332 mm (9-13/16 x 15-3/8 x 13-1/6)Weight ............................................ 11.3 kg

Speaker Components

Speaker Components .................... LF: 8" Cone (Magnetic shielding Type)HF: 1" Dome (Magnetic shielding Type)Enclosure ....................................... Type: Bass-reflex Type

Material: MDF

Amp. unitOutput Power.................................. Total: 120 W (dynamic power)

(LF: 75 W, 4 ohms, 1 kHz)(HF: 45 W, 8 ohms, 10 kHz)

Input Sensitivity/Impedance........... -10 dBu/ 10 k-ohmsInput Connectors (parallel) ............ 1: XLR-3-31 type (balanced)

2: PHONE (balanced)Controls .......................................... LEVEL control (+4 dB/ center click)

LOW CUT switch (FLAT/ 80/ 100 Hz, 12 dB/ octave)MID EQ switch (+/- 2 dB at 2 kHz)HIGH TRIM switch (+/- 2 dB at HF)ROOM CONTROL switch (0/ -2/ -4 dB under 500 Hz)

Power Indicator .............................. Power ON: White LEDPower Consumption ....................... 60 W

................................................ 2 ................... 2 kHz .............................. 42 Hz20 kHz-10 dBWHD.............. 250390332 mm ................................................ 11.3 kg

....................... LF20 cm

HF2.5 cm...........................

MDF

......................................... 120 W

LF75 W4 ohms1 kHzHF45 W8 ohms10 kHz

/............... -10 dBu/ 10 k-ohms....................... 1XLR-3-31

2 .................................. LEVEL+4 dB/ center click

LOW CUT FLAT/ 80/ 100 Hz12 dB/ octaveMID EQ +/- 2 dB at 2 kHzHIGH TRIM +/- 2 dB at HFROOM CONTROL 0/-2/-4 dB under 500Hz

.............................. ONLED ......................................... 60 W

Performance graph

10k1k10020

0

+10

RESPONSE(dB)

-10

-20

-30

-40

FREQUENCY (Hz)

HS80M


4/27

HS80M/HS50M

4

10k1k10020

0

+10

RESPONSE(dB)

-10

-20

-30

-40

FREQUENCY (Hz)

HS50M SPECIFICATIONSGeneral specifications

Type ................................................ Biamp 2-way Powered speakerCrossover Frequency ..................... 3 kHzOverall Frequency Response......... 55 Hz-20 kHz (-10 dB)Dimensiones (W x H x D) ............... 165 x 268 x 222 mm (6-1/2x 10-9/16x 8-3/4)Weight ............................................ 5.8 kg

Speaker Components

Speaker Components .................... LF: 5" Cone (Magnetic shielding Type)HF: 0.75" Dome (Magnetic shielding Type)Enclosure ....................................... Type: Bass-reflex Type

Material: MDF

Amp. unitOutput Power.................................. Total: 70 W (dynamic power)

(LF: 45 W, 4 ohms, 1 kHz)(HF: 25 W, 8 ohms, 10 kHz)

Input Sensitivity/Impedance........... -10 dBu/ 10 k-ohmsInput Connectors (parallel) ............ 1: XLR-3-31 type (balanced)

2: PHONE (balanced)Controls .......................................... LEVEL control (+4 dB/ center click)

LOW CUT switch (FLAT/ 80/ 100 Hz, 12 dB/ octave)MID EQ switch (+/- 2 dB at 2 kHz)HIGH TRIM switch (+/- 2 dB at HF)ROOM CONTROL switch (0/ -2/ -4 dB under 500 Hz)

Power Indicator .............................. Power ON: White LEDPower Consumption ....................... 45 W

................................................ 2 ................... 3 kHz .............................. 55 Hz20 kHz-10 dBWHD.............. 165268222 mm ................................................ 5.8 kg

....................... LF13 cm

HF2.0 cm...........................

MDF

......................................... 70 W

LF45 W4 ohms1 kHzHF25 W8 ohms10 kHz

....................... 1XLR-3-312

.................................. LEVEL+4 dB/ center clickLOW CUT FLAT/ 80/ 100 Hz12 dB/ octaveMID EQ +/- 2 dB at 2 kHzHIGH TRIM +/- 2 dB at HFROOM CONTROL 0/-2/-4 dB under 500Hz

.............................. ONLED ......................................... 45 W

Performance graph

HS50M


5/27

HS80M/HS50

DIMENSIONS

250 (9-13/16") 332 (13-1/16")

390(15-3/8")

165 (6-1/2") 222 (8-3/4")

268(10-9/16")

HS80M

HS50M

Unit: mm (inch)mm

Unit: mm (inch)mm


6/27

HS80M/HS50M

6

PANEL LAYOUT

OFF

INPUT

LEVEL

POWERON

AC IN

HS50MHS80M

1

2

3

4

5

6

7

8

ROOM CONTROL

HIGH TRIM

+2dB

+2dB

0dB

0dB

-2dB

-2dB

0dB

-2dB

-4dB

MID EQ

LOW CUT

2kHz

3kHz

500Hz

100Hz

80Hz

+2dB

+2dB

0dB

0dB

-2dB

-2dB

0dB

-2dB

-4dB

2kHz

2kHz

500Hz

100Hz

FLAT

80Hz

ROOM CONTROL

HIGH TRIM

MID EQ

LOW CUTFLAT

MID EQ

ROOMCONTROL

HIGHTRIM

LOW CUT

+2dB

0

-2dB

0

-2dB

-4dB

+2dB

0

-2dB

FLAT

80Hz100Hz

-10dB

+4dB

1

2

MIN

9

1 POWER switch

2 LEVEL control

3 INPUT 1, 2 connector

4 MID EQ switch

5 ROOM CONTROL switch

6 HIGH TRIM switch

7 LOW CUT switch

8 AC IN Connector

9 Power indicator

1 POWER

2 LEVEL

3 INPUT 12

4 MID EQ

5 ROOM CONTROL

6 HIGH TRIM

7 LOW CUT

8 AC IN

9 Power


7/27

HS80M/HS50

CIRCUIT BOARD LAYOUT

HS80M

HS50M

INPUT

AC INLETTRANS

AMP(LF 2/4)

(LF 3/4)

(LF 1/4)(LF 4/4)

INPUT

AC INLET

TRANS

AMP(LF 2/4)

(LF 3/4)

(LF 1/4)

(LF 4/4)


8/27

HS80M/HS50M

8

HS80M DISASSEMBLY PROCEDURE

1. Woofer (Time required: about 1 minute)

1-1 Remove the six (6) screws marked [55]. The woofer

ring can then be removed. (Fig. 1)

1-2 Remove the six (6) screws marked [40]. The woofer

can then be removed. (Fig. 1)

2. Tweeter (Time required: about 1 minute)

Remove the four (4) screws marked [20]. The tweeter


[20]: Hexagonal Socket Tapping Screw 4x20 (WG341100) 6

TP1

[40]: Bind Head Tapping Screw 4x16 (WG540200) TP1

[55]: Hexagonal Socket Tapping Screw 4x20 (WG341100) 6 TP1

Fig. 1 1

3. Rear Panel Assembly (Time required: about

1 minute)

Remove the ten (10) screws marked [155]. The rear

panel assembly can then be removed. (Fig. 2)

4. AMP Circuit Board(Time required: about 2 minutes)

4-1 Remove the rear panel assembly.(See procedure 3.)

4-2 Remove the five (5) screws marked [90]. The AMP

unit can then be removed. (Fig. 2)

* At this time, be careful not to lose the spacer whichalso comes off.

Fig. 2 2

[90]: Bind Head Tapping Screw-S 3x16 (WG341600)

S


1. 11-1 556

1

1-2 406 1

2. 1204

1

4. AMP24-1 Assy34-2 905AMP

2

3. Assy115510Assy

2

HS80M

[20] [20]

[40] Woofer Ring

[55]

[55][40]

Woofer

Tweeter

[90]

[155][155]

Rear Panel AssemblyAss'y


9/27

HS80M/HS50

HS80M

5. INPUT Circuit Board

(Time required: about 3 minutes)

5-1 Remove the rear panel assembly. (See procedure 3.)

5-2 Remove the four (4) screws marked [110] and the

screw marked [115]. (Fig. 3)

5-3 Remove the LEVEL knob, the hexagonal nut [E] and

washer [D]. (Fig. 3, Photo. 5)

5-4 Remove the hexagonal nut [F] on the phone type in-

put connector. The INPUT assembly can then be re-

moved. (Photo. 5)

5-5 Remove the three (3) screws marked [G] and remove

the case PWB. (Photo. 3)

The Input circuit board can then be removed.

* The case PWB is not a component of the INPUT cir-

cuit board. When replacing the INPUT circuit board,

remove the case PWB and reuse it.

5. INPUT35-1 Assy3

5-2 11041151

3

5-3 LEVELED 3 5

5-4 F

INPUT Assy 5

5-5 G3PWBINPUT

3

PWBINPUT

4-3 IC801IC80222

1

4-4 A2IC801IC802

1

B2IC801IC802

1

4-5 C4AMPAMP

1

[A]

[C ][C]

[C ][C][ ][B]

IC8 1IC801IC8 2IC802

AMP mounting BRACKETAM PAMP mounting BRACKETAMP


AMP circuit boardAM P AMP circuit boardAMP

SPACER SPACER

HEAT SINKHEAT SINK

INPUT Circuit BoardINPUT


C SE PWB PWB

CASE PWB PWB

Photo. 1 1

AMP

Photo. 2 2

Input Assy

4-3 Unsolder soldered parts (22 locations) on the pat-

tern side of IC801 and IC802. (Photo. 1)

4-4 Remove the two (2) screws marked [A] and remove

the heat sink with IC801 and IC802. (Photo. 1)

Remove the two (2) screws marked [B] and remove

IC801 and IC802. (Photo. 1)

4-5 Remove the four (4) screws marked [C], remove the

AMP mounting bracket. The AMP circuit board canthen be removed. (Photo. 1)

Photo. 3 3

][G]


10/27

HS80M/HS50M

10

6. TRANS Circuit Board and Power Trans-

former (Time required: about 2 minutes)


6-2 Remove the four (4) screws marked [130]. The TRANS

circuit board with the power transformer can then be

removed. (Fig. 3)

6-3 Unsolder the power transformer mounting solder (6

locations) and separate the power transformer from

the TRANS circuit board.

* The power transformer is not a component of the

TRANS circuit board.

7. AC INLET Circuit Board



Unsold soldered parts (2 locations) of the power

switch.

7-2 Remove the two (2) screws marked [150]. (Fig. 3)

7-3 Unsold the soldered part of the AC inlet groundingwire and remove the AC INLET circuit board.

(Photo. 4)

[110]: Bind Head Tapping Screw-S 3x10 (WG341400) S

[115]: Bonding Tapping Screw-B 3x10 (WH042000) B


[150]: Bind Head Screw-S 3x15 (WG341500)

6. TRANS/2

6-1 Assy3

6-2 1304TRANS

3

6-3 6TRANS

TRANS

7. AC INLET27-1 Assy3

7-2 1502 3

7-3 AC INLETAC INLET

4

[110]

[115]

[130] [150]

LEVEL KnobLEVEL

Fig. 3 3

HS80M

Solder

Solder

C InletAC INLET

AC InletAC INLETC INLET Circuit Board

AC INLETAC INLET Circuit Board

AC INLET

Power Switch

Power Switch

[D ][D][E ][E]

[F ][F]

Photo. 4 4

Photo. 5 5


11/27

HS80M/HS50

1. Woofer (Time required: about 1 minute)

1-1 Remove the four (4) screws marked [55]. The woofer

ring can then be removed. (Fig. 1)

1-2 Remove the four (4) screws marked [40]. The woofer


2. Tweeter (Time required: about 1 minute)

Remove the four (4) screws marked [20]. The tweeter



TP1



TP1

Fig. 1 1

3. Rear Panel Assembly(Time required: about

1 minute)

Remove the ten (10) screws marked [155]. The rear

panel assembly can then be removed. (Fig. 2)

4. AMP Circuit Board(Time required: about 2 minutes)


4-2 Remove the three (3) screws marked [90]. The AMP

unit can then be removed. (Fig. 2)

* At this t ime, be careful not to lose the plate whichalso comes off.

Fig. 2 2


S


1. 11-1 554

Fig. 1

1-2 404 1

2. 1204

1

4. AMP24-1 Assy34-2 903AMP

2

3. Assy115510Assy

2

[20] [20]

[40]Woofer Ring

[55]

[55][40]

Woofer

Tweeter

[90]

[155][155]


HS50M DISASSEMBLY PROCEDURE

HS50M


12/27

HS80M/HS50M

12

5. INPUT Circuit Board



5-2 Remove the four (4) screws marked [110] and the

screw marked [115]. (Fig. 3)5-3 Remove the LEVEL knob, the hexagonal nut [E] and

washer [D]. (Fig. 3, Photo. 5)

5-4 Remove the hexagonal nut [F] on the phone type in-

put connector. The INPUT assembly can then be re-

moved. (Photo. 5)

5-5 Remove the three (3) screws marked [G] and remove

the case PWB. (Photo. 3)

The Input circuit board can then be removed.

* The case PWB is not a component of the INPUT cir-

cuit board. When replacing the INPUT circuit board,

remove the case PWB and reuse it.

5. INPUT35-1 Assy3

5-2 11041151

3

5-3 LEVELED 3 5

5-4 F

INPUT Assy 5

5-5 G3PWBINPUT

3

PWBINPUT

HS50M

4-3 IC801IC80222

1

4-4 A2IC801IC802

1

B2IC801IC802

1

4-5 C4AMPAMP

1

[ ][A]

[C ][C]

[C ][C][ ][B]

IC8 1IC801IC8 2IC802 AMP mounting BRACKETAM PAMP mounting BRACKETAMP


HEAT SINKHEAT SINK

AMP Circuit BoardAM P AMP Circuit BoardAMP

PLATE PLATE


INPUT Circuit Board

INPUT

C SE PWB PWB

CASE PWB PWB

Photo. 1 1

AMP

Photo. 2 2

Input Assy

4-3 Unsolder soldered parts (22 locations) on the pat-

tern side of IC801 and IC802. (Photo. 1)

4-4 Remove the two (2) screws marked [A] and remove

the heat sink with IC801 and IC802. (Photo. 1)

Remove the two (2) screws marked [B] and remove

IC801 and IC802. (Photo. 1)

4-5 Remove the four (4) screws marked [C], remove the

AMP mounting bracket. The AMP circuit board canthen be removed. (Photo. 1)

Photo. 3 3

][G]


13/27

HS80M/HS50

Fig. 3 3

HS50M

[110]

[130]

[150]

[115]

LEVEL KnobLEVEL

Solder

Solder

C InletAC INLET

AC Inlet

AC INLET

Power Switch

Power Switch

C INLET Circuit BoardAC INLET

AC INLET Circuit BoardAC INLET

[ ][D][ ][E]

[F][F]

Photo. 4 4

Photo. 5 5

6. TRANS/2

6-1 Assy3

6-2 1304TRANS

3

6-3 6TRANS

TRANS

7. AC INLET27-1 Assy3

7-2 1502 3

7-3 AC INLETAC INLET

4

6. TRANS Circuit Board and Power Trans-

former (Time required: about 2 minutes)


6-2 Remove the four (4) screws marked [130]. The TRANS

circuit board with the power transformer can then be

removed. (Fig. 3)

6-3 Unsolder the power transformer mounting solder (6

locations) and separate the power transformer from

the TRANS circuit board.

* The power transformer is not a component of the

TRANS circuit board.

7. AC INLET Circuit Board



Unsold soldered parts (2 locations) of the power

switch.

7-2 Remove the two (2) screws marked [150]. (Fig. 3)

7-3 Unsold the soldered part of the AC inlet groundingwire and remove the AC INLET circuit board.

(Photo. 4)


S

[115]: Bonding Tapping Screw-B 3x10 (WH042000) B


[150]: Bind Head Screw-S 3x15 (WG341500)


14/27

HS80M/HS50M

14

MIN

-10dB

1

2

MIDEQ

ROOM

CONTROL

HIGH

TRIM

LOWCUT

LEVEL

INPUT

+2dB

0

-2dB

+2dB

0

-2dB

0

-2dB

-4dB

Component side

Component side

Component side

Component side

TRANS

INPUT

AMP

AC INLET

CN803:to TRANS-CN801

CN804:to AMP-CN805

CN801: toAC INLET-CN803

CN603:to POWER

INDICATOR-CN604

POWERINDICATOR

CN805:to TRANS-CN804

CN602: to INPUT-CB101

CN601: to WOOFER and TWEETER

CN802: to AC IN

CB

101:toAMP-CN602

FLAT

80Hz

100Hz

TWEETER

WOOFER

AC IN

POWERSWITCH

*1 *1

*2 *3

CN604:to AMP-CN603

CIRCUIT BOARDS

HS80M / HS50M

*1: IC601 and 602 are not components of the AMP P.C.B..

IC601, 602AMP

*3: The power switch is not a component of the AC INLET P.C.B..

POWER SWITCHAC INLET

*2: T801 is not a component of the TRANS P.C.B.

T801TRANS

Note) The parts in each P.C.B. vary depending on models, destinations, etc. For the parts information, refer to Parts List.


15/27

HS80M/HS50

1. Test conditions

(1) Input Signal: PHONE 1 kHz (WF), 10 kHz (TW)

PHONE 1 kHzWF10 kHzTW

(2) Output load: 4 ohms (WF), 8 ohms (TW)

4 ohmsWF8 ohmsTW

(3) AC power supply: AC100 V, 50/60 Hz (J)AC AC120 V, 60 Hz (U, T)

AC230 V, 50 Hz (B, H, O)

AC230 V, 60 Hz (K)

AC240 V, 50 Hz (A)

(4) VR-Level: MAX

MID EQ SW: 0

ROOM CONTROL SW: 0

HIGH TRIM SW: 0

LOW CUT SW: FLAT

2. Specifications

(NOTE): 0 dBu = 0.775 V

HS80M

HS80M INSPECTION

LIMIT

> 30 W

> 34 W

26 2 dBu

22 2 dBu

< 0.5 %

-3 2 dB

-3 2 dB

4 2 dB

-2 1.5 dB

+2 1.5 dB

-2 1.5 dB

-4 1.5 dB

-2 1.5 dB

+2 1.5 dB

-3 2 dB

-3 2 dB

< -58 dBu

1

2

3

4

5

6

ITEM

OUTPUT POWER

GAIN

T.H.D.

FREQUENCY RESPONSE

TONE-CONTROL

CHARACTERISTIC

RESIDUAL NOISE

INPUT CONDITIONS

INPUT: PHONE -10 dBu, 10 kHz


INPUT SIGNAL: 10 kHz

INPUT SIGNAL: 1 kHz

INPUT SIGNAL: 3.5 kHz

INPUT SIGNAL: 2 kHz

INPUT SIGNAL: 36.5 Hz

MID EQ SW: -2

MID EQ SW: +2

ROOM CONTROL SW: -2

ROOM CONTROL SW: -4

HIGH TRIM SW: -2

HIGH TRIM SW: +2

LOW CUT SW: 80 Hz

LOW CUT SW: 100 Hz

LEVEL VR = MIN.

OUTPUT CONDITIONS

1 % THD OUTPUT

15 W OUTPUT

10 W OUTPUT

REF: TW OUTPUT

10 kHz 1 WREF: WF OUTPUT

1 kHz, 1 W

REF: MID EQ SW: 0

INPUT SIGNAL: 2 kHz

REF: ROOM CONTROL SW: 0

INPUT SIGNAL: 500 Hz

REF: HIGH TRIM SW: 0


REF: LOW CUT SW: FLAT

INPUT SIGNAL: 80 Hz



DIN AUDIO Filter

DIN AUDIO Filter

TW

WF

TW

WF

TW

WF

TW

WF

WF

TW

WF

WF

TW


16/27

HS80M/HS50M

16

1. Test conditions

(1) Input Signal: PHONE 1 kHz (WF), 10 kHz (TW)

PHONE 1 kHzWF10 kHzTW

(2) Output load: 4 ohms (WF), 8 ohms (TW)

4 ohmsWF8 ohmsTW

(3) AC power supply: AC100 V, 50/60 Hz (J)AC AC120 V, 60 Hz (U, T)

AC230 V, 50 Hz (B, H, O)

AC230 V, 60 Hz (K)

AC240 V, 50 Hz (A)

(4) VR-Level: MAX

MID EQ SW: 0

ROOM CONTROL SW: 0

HIGH TRIM SW: 0

LOW CUT SW: FLAT

2. Specifications

(NOTE): 0 dBu = 0.775 V

HS50M

HS50M INSPECTION

LIMIT

> 16 W

> 15 W

24 2 dBu

17 2 dBu

< 0.5 %

-3 3 dB

-3 3 dB

1.5 3 dB

-2 1.5 dB

+2 1.5 dB

-2 1.5 dB

-4 1.5 dB

-2 1.5 dB

+2 1.5 dB

-3 2 dB

-3 2 dB

< -58 dBu

1

2

3

4

5

6

ITEM

OUTPUT POWER

GAIN

T.H.D.

FREQUENCY RESPONSE

TONE-CONTROL

CHARACTERISTIC

RESIDUAL NOISE

INPUT CONDITIONS




INPUT SIGNAL: 1 kHz

INPUT SIGNAL: 6 kHz

INPUT SIGNAL: 3 kHz

INPUT SIGNAL: 51 Hz

MID EQ SW: -2

MID EQ SW: +2

ROOM CONTROL SW: -2

ROOM CONTROL SW: -4

HIGH TRIM SW: -2

HIGH TRIM SW: +2

LOW CUT SW: 80 Hz

LOW CUT SW: 100 Hz

LEVEL VR = MIN.

OUTPUT CONDITIONS

1 % THD OUTPUT

8 W OUTPUT

6.5 W OUTPUT

REF: TW OUTPUT

10 kHz 1 WREF: WF OUTPUT

1 kHz 1 W

REF: MID EQ SW: 0

INPUT SIGNAL: 2 kHz

REF: ROOM CONTROL SW: 0


REF: HIGH TRIM SW: 0



INPUT SIGNAL: 80 Hz



DIN AUDIO Filter

DIN AUDIO Filter

TW

WF

TW

WF

TW

WF

TW

WF

WF

TW

WF

WF

TW


17/27


HS80M/HS50M

CIRCUIT DIAGRAMBLOCK DIAGRAM......................................... 2OVERALL CIRCUIT DIAGRAM........................................3/5

HS80M ............................................................................................. 3/4HS50M ............................................................................................. 5/6

CONTENTS

Note: See parts list for details of circuit board component parts.

INPUT

No.

Notation for Circuit Diagrams

1. How to identify inter-sheet connectors

The page number indicates the destination page.

This indicates the location of the counter inter-sheet connector.

(The alphabet indicates horizontal direction and the number

indicates vertical direction)

to page 4:

Signal name

I4


18/27

INPUT (LF 3/4) AMP

AC INLET TRANS

(LF 2/4

(LF 4/4)(LF 1/4)

CB101

LOW CUT LOW CUTSTEP FILTER

LOW CUT HIGH CUTSTEP FILTER

H.P.F

LEVEL

ROOM CONTROLMID EQ

LOW BOOST

LIMITER

POWER AMP

INPUT 1

INPUT 2

IC102-2/2IC101-2/2

IC103-2/2

IC102-1/2

IC104-2/2

IC106-2/2IC105 2/2

+15-15V+15

+15 +15

+15 +15

1 2

3IC101-1/2

-15V

3 +

-21 5

67 1 5 7

IC103-1/2

-15V

2 1 5 7 5 7

IC104-1/2

-15V

2 1

IC106-1/2

-15V

3

21

IC105-1/2

-15V

3

26

1 5

67

57

HIGH TRIM

VR1

44 88

4 48 8

844 8

S1 S2

S3

S4

CN602

CN803

CN804

CN805

CN801

2

1

!! !

!

! !3

CN604

CN603

POWER AMP

-VCC +VC

-15V

+15V

HF

LF

HF

LF

Q602~605

D801

R614

R600

D601

T801

C810

C801

1P (S)1P (S)

3P

(2P)(S)

2P

2P

5P

5P

(S)

3P

3P

(S)

2P(

S)

F801

POWER

CN 1

(S): Soldered

CN 2S801

EQ

L801

L802CN802

++

-

3

2 +

-

-

+

+

++

-

+

+

2


19/27

A B C D E F

1

2

3

4

5

6

7

HS80M OVERALL CIRCUIT DIAGRAM 1/2 (INPUT)

OP AMP

OP AMP

OP AMP

LEVEL

LOW CUT

LOW BOOST

STEP FILTER

STEP FILTER

LOW CUT

OP AMP

OP AMP

OP AMP

OP AMP

OP AMP

OP AMP

MID EQ

2kHz +2 / 0 / -2dB

HIGH TRIM

LOW CUT

FLAT / 80 / 100Hz

12dB / oct

INPUT1XLR

INPUT2PHONE

MY: Mylar Capacitor

Note: See parts list for details of c

INPUT


20/27

HS80M/HS50M

4

A B C D E F G

HS80M OVERALL CIRCUIT DIAGRAM 2/2 (AMP, TRANS, AC INLET)

REGULATOR +15V

REGULATOR -15V

LIMITER

POWER AM

POWER AM

POWER TRANSFORMER

POWER

SWITCH

POWER INDICATOR

TRANS

AC INLET

AMP

to INPUTCB101 (to Page 4 I4)


Distination

J

U, T

H, A, K

B

O

AC Cord

WG261700

WG261800

WG262000

WG261900

WG262200

Distination

J, U, T

H, B, A, K, O

F801

WG268000

WG268100

2A 100 V, 120 V

800 mA 230V

Distination

J

U, T

H, B, O, K

ADistination

J, U, T

H, B, A, K, O

AC INLET

WG266700

WG266900


21/27

A B C D E F

1

2

3

4

5

6

7

HS50M OVERALL CIRCUIT DIAGRAM 1/2 (INPUT)

OP AMP

OP AMP

OP AMP

LEVEL

LOW CUT

LOW BOOST

STEP FILTER

STEP FILTER

LOW CUT

OP AMP

OP AMP

OP AMP

OP AMP

OP AMP

OP AMP

MID EQ

2kHz +2 / 0 / -2dB

HIGH TRIM

LOW CUT

FLAT / 80 / 100Hz

12dB / oct

INPUT1XLR

INPUT2PHONE

MY: Mylar Capacitor

Note: See parts list for details of c

INPUT


22/27

HS80M/HS50M

6

A B C D E F G

HS50M OVERALL CIRCUIT DIAGRAM 2/2 (AMP, TRANS, AC INLET)

REGULATOR +15V

REGULATOR -15V

LIMITER

POWER AM

POWER AM

POWER TRANSFORMER

POWER INDICATOR

TRANS

AC INLET

AMP

to INPUTCB101 (to Page 6 I4)

POWER

SWITCH


Distination

J

U, T

H, A, K

B

O

AC Cord

WG261700

WG261800

WG262000

WG261900

WG262200

Distination

J, U, T

H, B, A, K, O

F801

WG265700

WG265800

1A 100 V, 120 V

400 mA 230V

Distination

J

U, T

H, B, O, K

ADistination

J, U, T

H, B, A, K, O

AC INLET

WG262800

WG263000


23/27


HS80M/HS50M

PARTS LIST

OVERALL ASSEMBLY......................................................... 2/4HS80M ................................................................................................ 2

HS50M ................................................................................................ 4

ELECTRICAL PARTS........................................................ 3/5HS80M ................................................................................................ 3

HS50M ................................................................................................ 5

CONTENTS

Notes: DESTINATION ABBREVIATIONS

A : Australian modelB : British modelC : Canadian modelD : German modelE : European modelF : French modelH : North European modelI : Indonesian modelJ : Japanese modelK : Korean model

M: South African modelO : Chinese modelQ : South-east Asia modelT : Taiwan modelU : U.S.A. modelV : General export model (110V)W: General export model (220V)N,X: General export modelY : Export model

WARNING

Components having special characteristics are marked and must be replaced with parts havingspecification equal to those originally installed.

The numbers QTY show quantities for each unit. The parts with -- in PART NO. are not available as spare parts. This mark } in the REMARKS column means these parts are interchangeable.

The second letter of the shaded ( ) part number is O, not zero. The second letter of the shaded ( ) part number is I, not one. QTY PART NO. -- REMARKS PART NO. 2 PART NO. 2


24/27

HS80M/HS50M

2

HS80M OVERALL ASSEMBLY

155

100

120

125

140

80

85

SPACER

FUSE


Bonded

55

AC cord (ex. J)ACJ

70

90

90

110

170115

150

130

60

160

3050

40

20

10

HS80M


25/27

HS80M/HS50

RANKQTYREMARKSDESCRIPTION REF NO. PART NO.

: New Parts RANK: Japan only

OVERALL ASSEMBLY HS80M

Overall Assembly HS80M J J (WF74870)

Overall Assembly HS80M U U (WF74880)

Overall Assembly HS80M H H (WF74890)

Overall Assembly HS80M B B (WF74900)

Overall Assembly HS80M A A (WF74910)

Overall Assembly HS80M K K (WF74920)Overall Assembly HS80M T T (WF74930)

Overall Assembly HS80M CHN O (WF74940)

Service Parts Kits PA 8E60 (WG26820)

* 10 Speaker 2.5cm 8 OHM 29W TWEETER (433208)

* 20 Hex.Socket Tapping Screw 4x20 (433189) 4

* 30 Speaker 20cm 4 OHM 58W WOOFER (433183)

* 40 Bind Head Tapping Screw 4x16 (423213) 6

* 50 Woofer Ring BLACK (430753)


* 60 Cord Assembly CORD SP (430278)

* 70 Knob Black LEVEL (425210)

* 80 Circuit Board HS80M AMP (WG26630)(WG26680)

* 85 IC LM3886TF POWER AMP (070286) 2

* 90 Bind Head Tapping Screw-S 3x16 (417373) 8

* 100 Circuit Board HS80M INPUT (WG26630)(WG26680)


* 115 Bonding Tapping Screw-B 3x10 (417370)

* 120 Circuit Board HS80M TRANS (WG26630)(WG26680)

s * 125 Transformer J J (432224)

s * 125 Transformer U/C,T U,T (432225)

s * 125 Transformer B,H,CHN H,B,O,K (432226)

s * 125 Transformer A A (432586)


s * 140 Circuit Board HS80M AC INLET J,U,T (WG26630)

s * 140 Circuit Board HS80M AC INLET H,B,A,K,O (WG26680)

* 150 Bind Head Screw 3x15 (423328) 2


160 Cabinet Assembly (WG26790)

s * 170 Power Switch 381326 POWER (381326)

ACCESSRIES HS80M

s * AC Cord J J (414427)

s * AC Cord U/C,T U,T (369532)

s * AC Cord H,A,K H,A,K (417976)

s * AC Cord B B (369533)

s * AC Cord CHN O (414426)

ELECTRICAL PARTS

s * Circuit Board HS80M AC INLET J,U,T (WG26630)

s * Circuit Board HS80M AC INLET H,B,A,K,O (WG26680)

s * Circuit Board HS80M AMP (WG26630)(WG26680)

* Circuit Board HS80M INPUT (WG26630)(WG26680)

s * Circuit Board HS80M TRANS (WG26630)(WG26680)



s * F801 Fuse 2 J.U. J,U,T (058991)

s * F801 Fuse 800MA S.B. H,B,A,K,O (050587)

* Circuit Board HS80M INPUT (WG26630)(WG26680)* JK1 Cannon Type Connector JACK JY-5033L 030 INPUT1 (431177)

* JK2 Phone Jack JACK HTJ064-11D INPUT2 (073961)

* VR1 Rotary Variable Resistor A 10K XVB12111NPD2 LEVEL (425076)

s * S801 Power Switch 381326 POWER (381326)

--

--

--

--

--

--

--

--

--

X7239A00

WG341100

X7240A00

WG540200

WG267300

WG341100

WG267200

WG263100

WG266400

X7244A00

WG341600

WG266500

WG341400

WH042000

WG266600

WG267400

WG267500

WG267600

WG267700

WG341300

WG266700

WG266900

WG341500

WG540200

--

WG263400

WG261700

WG261800

WG262000

WG261900

WG262200

WG266700

WG266900

WG266400

WG266500

WG266600

WG266700

WG266900

WG268000

WG268100

WG266500WG265900

WG266000

WG266100

WG263400


26/27

HS80M/HS50M

4

HS50M OVERALL ASSEMBLY


155

100

120125

140

80

85

PLATE

AC cord (ex. J)ACJ

FUSE

Bonded

70

110

90

170

115

150

130

130

10

20

60

40

55

50

30

160

HS50M


27/27

HS80M/HS50

RANKQTYREMARKSDESCRIPTION REF NO. PART NO.

OVERALL ASSEMBLY HS50M

Overall Assembly HS50M J J (WF74780)

Overall Assembly HS50M U U (WF74790)

Overall Assembly HS50M H H (WF74800)

Overall Assembly HS50M B B (WF74810)

Overall Assembly HS50M A A (WF74820)

Overall Assembly HS50M K K (WF74830)Overall Assembly HS50M T T (WF74840)

Overall Assembly HS50M CHN O (WF74850)

Service Parts Kits PA 8E59 (WG26620)

* 10 Speaker 1.9cm 8 OHM 19W TWEETER (433207)


* 30 Speaker 13cm 4 OHM 38W WOOFER (433206)


* 50 Woofer Ring BLACK (430752)


* 60 Cord Assembly CORD SP (430277)

* 70 Knob Black LEVEL (425210)

* 80 Circuit Board HS50M AMP (WG26230)(WG26290)

* 85 IC LM3886TF POWER AMP (070286) 2


* 100 Circuit Board HS50M INPUT (WG26230)(WG26290)


* 115 Bonding Tapping Screw-B 3x10 (417370)

* 120 Circuit Board HS50M TRANS (WG26230)(WG26290)

s * 125 Transformer J J (432220)

s * 125 Transformer U/C,T U,T (432221)

s * 125 Transformer B,H,CHN H,B,O,K (432222)

s * 125 Transformer A A (432585)


s * 140 Circuit Board HS50M AC INLET J,U,T (WG26230)

s * 140 Circuit Board HS50M AC INLET H,B,A,K,O (WG26290)

* 150 Bind Head Screw 3x15 (423328) 2


160 Cabinet Assembly (WG26420)

s * 170 Power Switch 381326 POWER (381326)

ACCESSRIES HS50M

s * AC Cord J J (414427)

s * AC Cord U/C,T U,T (369532)

s * AC Cord H,A,K H,A,K (417976)

s * AC Cord B B (369533)

s * AC Cord CHN O (414426)

ELECTRICAL PARTS



* Circuit Board HS50M AMP (WG26230)(WG26290)

* Circuit Board HS50M INPUT (WG26230)(WG26290)

* Circuit Board HS50M TRANS (WG26230)(WG26290)



s * F801 Fuse 1 J.U. J,U,T (339124)

s * F801 Fuse 400MA S.B. H,B,A,K,O (075126)

* Circuit Board HS50M INPUT (WG26230)(WG26290)* JK1 Cannon Type Connector JACK JY-5033L 030 INPUT1 (431177)

* JK2 Phone Jack JACK HTJ064-11D INPUT2 (073961)

* VR1 Rotary Variable Resistor A 10K XVB12111NPD2 LEVEL (425076)

s * S801 Power Switch 381326 POWER (381326)

--

--

--

--

--

--

--

--

--

X7237A00

WG341100

X7238A00

WG540200

WG263600

WG341100

WG263500

WG263100

WG262400

X7244A00

WG341400

WG262500

WG341400

WH042000

WG262600

WG263700

WG263800

WG263900

WG264000

WG341300

WG262800

WG263000

WG341500

WG540200

--

WG263400

WG261700

WG261800

WG262000

WG261900

WG262200

WG262800

WG263000

WG262400

WG262500

WG262600

WG262800

WG263000

WG265700

WG265800

WG262500WG265900

WG266000

WG266100

WG263400

Documents

HS80M HS50M Schematics