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HANDBOOK
BROADCAST FM EXCITERSFM25EFM50EFM150E
FM SERIES
PTEK
Limited WarrantyPTEK (SELLER) warrants that products are free from defects in material and workmanship and meet
performance specifications provided, however, that:
(A) SELLER’ liability under this Warranty is limited to repairing or replacing, at its option, any
product delivered here under not conforming to this Warranty;
(B) This Warranty is limited to a period of two years;
(C) Minor deviations from specifications which do not affect performance are excluded from this
Warranty; and
(D) SELLER shall be liable under this Warranty only if:
(1) It is promptly notified in writing by the Buyer upon discovery of the failure of any product to
conform to this Warranty,
(2) The product is returned to SELLER, transportation charges prepaid by the Buyer,
(3) The product is received by SELLER not later than ten days after the last day of the two-year
period of this Warranty, and
(4) SELLER’ examination of the Product discloses to SELLER’S reasonable satisfaction that
such defects or failures as may exist have not been caused by misuse, neglect, improper
installation, repair, alteration, accident or shipping.
The Buyer will prepay freight to and from SELLER on products serviced here under at SELLER’ plant; but
SELLER may, at its option, elect to perform any repairs here under at the Buyer’s place of business.
The foregoing constitutes SELLER’S entire Warranty expressed, implied and/or statutory, except as to
title, and states the full extent of SELLER’S liability to the Buyer or to any other party for any breach of
such Warranty and for damages, whether direct, special, incidental or consequential; and, other than as
expressly provided in this document. No Warranties, expressed or implied, including any Warranty or
merchant ability or of fitness for a particular purpose, are made. No employee, representative or agent of
SELLER has any authority, expressed or implied, to alter or to supplement the terms of this Warranty.
Warranty Service
The Limited Warranty covers parts and labor to the original purchaser for two year. Damage
caused by misuse or shipping is excluded from the warranty. Before returning units or material,
contact the factory for a Returned Material Authorization (RMA) number. Ship all material
prepaid. Defective material should be addressed to:
PTEK
Customer Service Manager
1814 Schooldale Drive
San Jose, CA. 95124
(408) 448-3342
Page 3
Contents
Safety Notice .................................................................................................................4
Rear
FCC, Accessory Connections & efficiency V O/P Pwr.................................................12
Parts list Chassis...........................................................................................................22
Parts list Synth Board ..................................................................................................25
Parts list LED Board ....................................................................................................25
Specifications ................................................................................................................5
Front & Panel Layout .............................................................................................6
Installation .....................................................................................................................8
Schematic Synthesizer ...........................................................................................12-13
PROVISIONAL......................11/25/96REV A.....................................1/16/97REV B.....................................10/7/97REV C.....................................4/13/99REV D.....................................5/24/99REV E....................................12/14/99REV G........................................7/7/03
Rev record
Safety
BEFORE APPLYING POWER
GROUND THE EXCITOR.
Fuses
.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
DO NOT REMOVE THE EXCITOR COVER
Output connector
Verify that the line voltage is 115V
To minimize shock hazard, the excitor chassis must be connected to an electrical ground. the excitor must beconnected to the ac power mains through a three-conductor power cable, with the third wire firmly connected to anelectrical ground (safety ground) at the power outlet. Any interruption of the protective (grounding) conductor ordisconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury.If the excitor is to be energized by any other source be certain the that chassis is connected to a separate safetyground.
Only fuses with the same required current, voltage rating, and specified type (normal blow, time delay, etc.) should beused. Do not use repaired fuses or short-circuited fuseholders. To do so could cause a shock or fire hazard
Do not operate the power amplifier in the presence of flammable gases or fumes.
Operating personnel must not remove the exciter cover. Component replacement and internal adjustments must bemade only by qualified service personnel.
The type N output connector carries dangerously high RF voltages which present a shock and burn hazard.operate this excitor with out the out put connector properly terminated in either an adequately rated load or antenna.
NEVER
Page 4
Specifications
MONAURAL
Audio Input Impedance:
Audio Input Level:
Audio Frequency Response:
Total Harmonic Distortion:
FM S/N Ratio (FM Noise):
Asynchronous AM S/N Ratio (AM Noise):
Synchronous AM SIN Ratio (Incidental AM Noise):
600 ohms, balanced
+10 dBm (6.93 volts peak-to-peak) at 600 ohms for75 kHz deviation
+/-0.5 dB; flat or 75 microsecond pre-emphasis, 20Hz to 15kHz (other time const. available)
0.15% max.; 20 Hz to 15 kHz
70 dB min. below 75 kHz deviation at 400 Hz,measured within a 20 Hz to 15 kHz bandwidth with75 microsecond de-emphasis
60 dB RMS. below carrier; reference: 100% AMmodulation, at 400 Hz with 75 microsecond de-emphasis, no FM modulation
57 dB below carrier; reference: 100% AMmodulation, full power at 400 Hz with 75uS de-emphasis, FM +/- 75 kHz, 400Hz
ENVIRONMENT
Altitude: Ambient Temperature0-10,000 ft -10 to +50 oC
WIDEBAND
Inputs:
Input Level:
Wideband Amplitude Response:
Composite Unbalanced 10kOhmsSCA 1 Unbalanced 10k Ohms
3.5 V RMS. (10 Volts peak-to-peak) for 75 kHz deviation
+/-0.5 dB, 20 Hz to 100 kHz
GENERAL
Frequency Range:
Frequency Control:
Frequency Stability:
Output Impedance:
Output Connector:
VSWR:
Modulation Type:
Modulation Capability:
Multi-Meter Indication:
Harmonic Attenuation:
87.7 to 108 MHz, in 200 kHz steps (other stepsize to order)
Phase locked loop frequency synthesis from highstability master oscillator
+/- 1.2 kHz
50 ohms
Type -"N" female
1.5:1 for full power, derate to 0 at inf.
Direct carrier frequency modulation
Internally limited to 100 kHz deviation
Deviation, Forward Power, Reverse Power, FinalI & V
-70 dB, min.
Page 5
FM25E
Rated Power Output:
Power Consumption:2 TO 30W
100W
FM50E
Rated Power Output:
Power Consumption:5 TO 60W
200W
FM150E
Rated Power Output:
Power Consumption:10 TO 200W
500W
1
45
Rear panel layout
8 7 6
5
1 2
3 4
Page 6
Front panel layout
. DEVIATION
2 3
8
AC IN
SCA
FUSE
RF OUTPUT
FINAL CURRENT
FINAL VOLTAGEFORWARD POWER
REVERSE POWER
ADJPOWER
OFF
OPERATE
REMOTE OFF
FAULT
DRIVE LOW
FM Series
PTEKFM25E
DEVIATION
3025201510
5
OUTPUT POWER W (REV X0.1)
4.040
3.030
2.020
1.0100
0 AMPS
PTEK
VOLTS
DEVIATION kHz
100
755025
ON
REMOTE
PWR PWR
VOLTAGE
FWD REV
OFF
CURRENTFINAL
MONO IN600 OHMS
RAISE
LOWER
GAIN
GAIN
GAIN
COMPOSITE
10MHz 1MHz 100kHz
FREQUENCY
Key Element Description
1 AC IN & FUSE 110 VAC input and Fuse 10A
2 COMPOSITE Unbalanced wide band composite input
3 SCA Unbalanced wide band input
4 RF OUT TYPE N RF Output
5 FREQUENCY SELECTION Set switches for frequency selection (only takes effect when unit is switched
from off to on)
6 Accessory connector Connections for; Remote off and DC indications of Forward Power, Reverse
Power, Final Voltage, Final Current and Deviation.
8 SERIAL NUMBER Serial number for reference purposes
Page 7
Key Element Description
1 METER Indicates Forward Power, Reverse Power, Final Voltage, Final Current and
Deviation
2 OPERATE Switch and
Indicator
This switch sets the FM Broadcast Amplifier to the Operate Mode; 110 VAC is
applied to the line transformers and this amber indicator is lit.
3 REMOTE OFF Indicator This red LED indicator is lit when the FM Broadcast Amplifier remote off
terminals (rear panel) are open circuit.
3 DRIVE LOW Indicator This red LED indicator is lit when the FM Broadcast Amplifier can not make
the power requested, because for example low drive power.
5 FAULT Indicator This red LED indicator is lit when the FM Broadcast Amplifier is in a fault
condition. This can be for one or combination of the following:-
Over drive, High supply Voltage, High load VSWR, Over temperature.
6 Meter Select Switch This switch selects one of the following to be presented on the meter (1):-
Forward Power, Reverse Power, Final Voltage, Final Current and Deviation.
7 ADJ POWER control This control adjust the output power from rated full power to less than 50%.
8 Ventilation Filter This provides for filtering the environmental air as it is drawn into the cabinet
by the internal fan (not used on FM10E).
Refer to the Table below for the following description. The installer should assure the ac line voltage is turned OFFbefore performing this procedure. The electrical connections are installed at the Exciter rear panel.
Installation-Electrical
Step Procedure
1 Connect the load RF line to RF OUT connector.
3 Connect the ac line power to the ac line in connector.
4 Optional. Connect the remote site metering, to the rear terminal block.
5 Connect either the composite input to the output from a stereo encoder or the balanced mono input to a
program source
Page 8
RG8 TO ANTENNA/PA
PART OF USER SUPPLIED REMOTE CONTROL
BALANCED MONO IN
OR (NOT BOTH)
FROM STEREO ENCODER OR STL
AC IN
SCA
FUSE
RF OUTPUT
ON
REMOTE
PWR PWR
VOLTAGE
FWD REV
OFF
CURRENTFINAL
MONO IN600 OHMS
RAISE
LOWER
GAIN
GAIN
GAIN
COMPOSITE
10MHz 1MHz 100kHz
FREQUENCY
Refer to the Table below for the following procedure.
Step Action Verification
1 Switch the RF out to a dummy load.
2 Turn on the ac line power to excitor. DRIVE LOW indicator is out. FAULT indicator is on
initially then out after 30 seconds. REMOTE OFF
indicator is out.
3 Select Meter to read FORWARD POWER.
4 Adjust the POWER CONTROL to the rated
power.
5 Select Meter to read FINAL VOLTAGE. The Meter reads 15~50V. Note the exact value.
6 Select Meter to read FINAL CURRENT. The The Meter reads 1~8A. Note the exact value.
7 Calculate the dc power input to the PA from the
values of step 4 and 5.
P=VI and note the exact value.
8 Select the Meter to read REVERSE POWER. Check that there is no appreciable reading of reverse
power
9 Calculate the PA efficiency. Step 6 value divided by the value in step 7 or about 50
percent.
10 Adjust the ADJ POWER Switch to raise or
lower the output to the required output power.
Turn-On Checkout
Page 9
Page 10
Frequency Selection
10s MHz Switch
“0” is 10 (100MHz)
PLEASE NOTE, FREQUENCY CHANGESSHOULD BE MADE WITH THE UNIT TURNED
OFF
100kHz Switch1MHz Switch
Example Shown 104.5MHz
FCC Compliance statement
THIS DEVICE HAS BEEN VERIFIED TO COMPLY WITH PART 73 OF THE FCC RULES.
Page 11
Pos Function
1 Remote on; Momentary ground to turn the unit on.
2 Remote off; Momentary ground to turn the unit off.
3 Forward Power DC indication 2.4V=12W
4 Reverse Power DC indication 2.4V=1.2W
5 Final Voltage DC indication V=Vsupply/10
6 Final Current 1A=0.1V
7 Raise Ground to Raise Output Power
8 Lower Ground to Lower Output Power
9 600 ohms balanced mono input
10 600 ohms balanced mono input
FM25E FM50E FM150E
Power
Output
(Watts)
Efficiency
(%)
Power
Output
(Watts)
Efficiency
(%)
Power
Output
(Watts)
Efficiency
(%)
25.0 52% 50.0 48% 150.0 57%
22.5 49% 40.0 42% 120.0 51%
20.0 47% 32.0 38% 96.0 45%
17.5 46% 25.6 33% 76.8 40%
15.0 44% 20.5 30% 61.4 35%
12.5 42% 16.4 26% 49.2 32%
10.0 33% 13.1 23% 39.3 28%
Efficiency V Output Power
Accessory connector
Page 12
EXCITER SCHEMATIC
600 OHMS BALANCED
MONO INPUT
MONO INPUT
SCA INPUT
STEREO INPUT
CW
W
CC
W
500
R98
P1
P2
S1
S2
S3
MOUSER
T22
9
1
3
2
P2:1
P4
3P2:2
P3
P2:4
P2:3
DOWN
UP
3
2DOWN
UP
P1:5
P1:6
C51
12p10pC52
C56
12p
C624.7u
1P8:1
2P8:2
3P8:3
+5V
2N3904
Q8
2N3906
Q10
R42
100K
R43
100K
R484.7K
R544.7K
R60100
R642.2K
R66100K
R67100K
R68100K
R7410K
R751M
2
3
4
1
5
6
7
8CS
CLK
DI
DO Vss
ORG
NC
Vcc
U693LC56
2
3
4
5
6
7
1
8
9 10
11
12
13
14
15
16
17
18RA2
RA3
RTCC
MCLR
Vss
RB0
RB1
RB2
RB3 RB4
RB5
RB6
RB7
Vdd
OSC2
RA1
OSC1
RA0
U8PIC16C56
4MHz
X1
+5V
2 7
3 6
4 5
1 8
S3:1
2 7
3 6
4 5
2 7
3 6
4 5
1 8
S7:1
1 8
S2:1
D11
D12
D13
D14
D15
D16
D17
D22
D23
D24
D25
R69100K
D10
ALL THESE DIODES1N4148
C55
0.01u
C5
94
.7u
NO
NP
OL
C644.7uD18
1N4148
+5V
+12V
BRF96
Q9
R49
10K
R51
4.7kR53
100K
R611M
R65
1M
R72100K
R791K
2-
3+
11
4
1
LM324J
U7:A
R5710K
C71
100p
R104
100K
R103
100K
+5V
6-
5+
7
LM324J
U7:B
C53
10p
2
3
4
5
6
7
1
8 9
10
11
12
13
14
15
16OSCin
OSCout
REFout
fin
Din
ENB
CLK
Dout
fV
fR
LD
VSS
PDout
VDD
piV
piR
U9MC145170
R44270
R4522
R4622
9-
10+
8
LM324JU7:C
C69
0.01u
R811K
R86
10K
CW
W
CC
W
10K
R88R92
10K
CW
W
CC
W
10K
R93
R95
7.5K
R99
560
C67
0.1u
C63
4.7u
6-
5+
7
LM324J
U11:B
2-
3+
11
4
1
LM324J
U11:A
-12V
-12V
+12V
R90
47K
R10210K
R96
4.2K
R4010K
R31
4.7KC43
47u
R32100K
C4
9
0.1
u
R15
22C2047u C21
4.7u
R16
560
R17
10K
C230.01u
D3
MMBV2109LT1
D5MMBV2109LT1
L5
4T0.156 22G
R2810K
C3210p
D8
MMBV2109LT1
R33100K
VCO
OFF
REMOTE OFF LED
R71k
+5V
P3:1
PSU CAP
D11N4148
P2:9ON
P2:10
C5
C6
C2
C3
C4
C1
RL
A1
D21N4148
RLA/2
15V
1VI
2G
3VO
7812
U3
C75
0.1u
PSU CAP
+12V
R8
100
R1110K
+12V
C18
0.1u
1VI
2G
3VO
LM7805U2
1VI
2G
3VO
78L08
U1+12V
8V+5V
C7
47u ELNO
C5
0.01u
C4
0.01u
C3
0.01u
C20.01u
5
6
7
8
4
3
2
1
-Vout
NC
NC
+VinNC
CAP+
GRN
CAP-
U47660
C84.7u
C12
220u
C38
0.01u
C39
68p
C40
0.01u
C41
18p
C50
4.7u
L12
2T0.125 22G
L141uH
+12V
+5V
+12V
BRF96
Q6
BRF96
Q7
R21
10
R2347R24
100R25
100R26100
R30
10K
R34
22
13-
12+
14
LM324J
U7:D
-12V SWITCHING REGULATOR
R1010K
2N3904Q2
R1822
C22
47u
C17
0.01u
2N3904
Q1
C420.01u
C14
0.01u
C2410p
R35
1K
R36
100
P1
P2
S1
S2
S3
{Value}
T1
R22
22
R3822
C16
47u
G
SD
U310
Q3
C3610p
+12V
C2962p
CW
W
CC
W
10KR9
13-
12+
14
LM324J
U5:D
R411K
R39100K
R37
470
R20470
R19220
MRF171
Q5
MRF237
Q4
5V
+12V
L13
2T0.175_22g
L10
5T0.235_18g
L9
5T0.235_18g
L8
5T0.2_18g
L7
4T0.175_18g
L6
1.5T0.175_18g
L4
4T0.235 18G
L3
4T
0.1
65
22
G
D7
1N4148
C48
0.01u
C47
0.01u
C45
0.01u
C35
0.01
C3433p
C33100p C28
47p
C27
43p
C26620p
C25
120p
C15
0.01u
C131000p
DETECTOR DIODE BIAS& TEMP. COMPESATION
+5V
R125.6K
R1351K
R3
82K
-12
V
C74
47u
9-
10+
8
LM324J
U10:C
R1
0.1
C9
0.01
5
6
7
8
4
3
2
1
-Vout
NC
NC
+VinNC
CAP+
GRN
CAP-
U127660
C73
220u
C724.7u
C1
4.7u
R610K
R5100K
R2
3.9k
FINAL CURRENT REARP2:5
R106
10K
P2:6
FINAL VOLTAGE REARR105
10k
R4
100
FINAL CURRENT
FINAL VOLTAGE
P1:8
P1:9
REVPWR
RF OUTL11
5T0.2_18g
C46
0.01u
C44
0.01u
C37
47p
C3124p
C3047p
R27
120
R2910K
R14120
C10
0.01u
C1947p
C11
0.01u
R77100
D4
1N4148
D61N4148
R731K
6-
5+
7
LM324J
U10:B
13-
12+
14
LM324J
U11:D
9-
10+
8
LM324J
U11:C
C660.01u
C70
4.7u
D191N4148
D20
1N4148
CW
W
CC
W
10K
R78
CW
W
CC
W
10KR80
R82
10
R83
470
R84
10K
R85
10K
R87
10K
R97
100K R100
1K
R101
100K
R94
10K
C68
4.7u
D2
1
1N
41
48
-12V
R9110K
CW
W
CC
W
10KR58
REVPWR
C76
100p
+12V
-12V
-12V
AGC
C57
0.1u
C58
0.01u
C60
100p
D9
1N4148
CW
W
CC
W
10KR47 R50
10K
R55
8.2K
R56
100K
R7110K
2-
3+
11
4
1
LM324J
U5:A
C77
100p13
-
12+
14
LM324JU10:D
R10810K
R107
3.9K
+12V
R59
1k
R521k
P2:7
9-
10+
8
LM324J
U5:C
6-
5+
7
LM324J
U5:B
P1:4
P1:3
P1:2
AGC IN RANGE DETECTER
C54
100p
C61100p
C65100p
DRIVE LOW
FAULT
REV PWR REAR
REV PWR METER
R62
470 R6310K R70
10K
R76
10
2-
3+
11
4
1
LM324J
U10:A
-12V
P2:8
6
P1:7
P1:1
METERING
DEVIATIONMETER
FWD PWR METER
FWD PWR REAR
CW
W
CC
W
200R89
Page 13
EXCITER SCHEMATIC
600 OHMS BALANCED
MONO INPUT
MONO INPUT
SCA INPUT
STEREO INPUT
CW
W
CC
W
500
R98
P1
P2
S1
S2
S3
MOUSER
T22
9
1
3
2
P2:1
P4
3P2:2
P3
P2:4
P2:3
DOWN
UP
3
2DOWN
UP
P1:5
P1:6
C51
12p10pC52
C56
12p
C624.7u
1P8:1
2P8:2
3P8:3
+5V
2N3904
Q8
2N3906
Q10
R42
100K
R43
100K
R484.7K
R544.7K
R60100
R642.2K
R66100K
R67100K
R68100K
R7410K
R751M
2
3
4
1
5
6
7
8CS
CLK
DI
DO Vss
ORG
NC
Vcc
U693LC56
2
3
4
5
6
7
1
8
9 10
11
12
13
14
15
16
17
18RA2
RA3
RTCC
MCLR
Vss
RB0
RB1
RB2
RB3 RB4
RB5
RB6
RB7
Vdd
OSC2
RA1
OSC1
RA0
U8PIC16C56
4MHz
X1
+5V
2 7
3 6
4 5
1 8
S3:1
2 7
3 6
4 5
2 7
3 6
4 5
1 8
S7:1
1 8
S2:1
D11
D12
D13
D14
D15
D16
D17
D22
D23
D24
D25
R69100K
D10
ALL THESE DIODES1N4148
C55
0.01u
C5
94
.7u
NO
NP
OL
C644.7uD18
1N4148
+5V
+12V
BRF96
Q9
R49
10K
R51
4.7kR53
100K
R611M
R65
1M
R72100K
R791K
2-
3+
11
4
1
LM324J
U7:A
R5710K
C71
100p
R104
100K
R103
100K
+5V
6-
5+
7
LM324J
U7:B
C53
10p
2
3
4
5
6
7
1
8 9
10
11
12
13
14
15
16OSCin
OSCout
REFout
fin
Din
ENB
CLK
Dout
fV
fR
LD
VSS
PDout
VDD
piV
piR
U9MC145170
R44270
R4522
R4622
9-
10+
8
LM324JU7:C
C69
0.01u
R811K
R86
10K
CW
W
CC
W
10K
R88R92
10K
CW
W
CC
W
10K
R93
R95
7.5K
R99
560
C67
0.1u
C63
4.7u
6-
5+
7
LM324J
U11:B
2-
3+
11
4
1
LM324J
U11:A
-12V
-12V
+12V
R90
47K
R10210K
R96
4.2K
R4010K
R31
4.7KC43
47u
R32100K
C4
9
0.1
u
R15
22C2047u C21
4.7u
R16
560
R17
10K
C230.01u
D3
MMBV2109LT1
D5MMBV2109LT1
L5
4T0.156 22G
R2810K
C3210p
D8
MMBV2109LT1
R33100K
VCO
OFF
REMOTE OFF LED
R71k
+5V
P3:1
PSU CAP
D11N4148
P2:9ON
P2:10
C5
C6
C2
C3
C4
C1
RL
A1
D21N4148
RLA/2
15V
1VI
2G
3VO
7812
U3
C75
0.1u
PSU CAP
+12V
R8
100
R1110K
+12V
C18
0.1u
1VI
2G
3VO
LM7805U2
1VI
2G
3VO
78L08
U1+12V
8V+5V
C7
47u ELNO
C5
0.01u
C4
0.01u
C3
0.01u
C20.01u
5
6
7
8
4
3
2
1
-Vout
NC
NC
+VinNC
CAP+
GRN
CAP-
U47660
C84.7u
C12
220u
C38
0.01u
C39
68p
C40
0.01u
C41
18p
C50
4.7u
L12
2T0.125 22G
L141uH
+12V
+5V
+12V
BRF96
Q6
BRF96
Q7
R21
10
R2347R24
100R25
100R26100
R30
10K
R34
22
13-
12+
14
LM324J
U7:D
-12V SWITCHING REGULATOR
R1010K
2N3904Q2
R1822
C22
47u
C17
0.01u
2N3904
Q1
C420.01u
C14
0.01u
C2410p
R35
1K
R36
100
P1
P2
S1
S2
S3
{Value}
T1
R22
22
R3822
C16
47u
G
SD
U310
Q3
C3610p
+12V
C2962p
CW
W
CC
W
10KR9
13-
12+
14
LM324J
U5:D
R411K
R39100K
R37
470
R20470
R19220
MRF171
Q5
MRF237
Q4
5V
+12V
L13
2T0.175_22g
L10
5T0.235_18g
L9
5T0.235_18g
L8
5T0.2_18g
L7
4T0.175_18g
L6
1.5T0.175_18g
L4
4T0.235 18G
L3
4T
0.1
65
22
G
D7
1N4148
C48
0.01u
C47
0.01u
C45
0.01u
C35
0.01
C3433p
C33100p C28
47p
C27
43p
C26620p
C25
120p
C15
0.01u
C131000p
DETECTOR DIODE BIAS& TEMP. COMPESATION
+5V
R125.6K
R1351K
R3
82K
-12
V
C74
47u
9-
10+
8
LM324J
U10:C
R1
0.1
C9
0.01
5
6
7
8
4
3
2
1
-Vout
NC
NC
+VinNC
CAP+
GRN
CAP-
U127660
C73
220u
C724.7u
C1
4.7u
R610K
R5100K
R2
3.9k
FINAL CURRENT REARP2:5
R106
10K
P2:6
FINAL VOLTAGE REARR105
10k
R4
100
FINAL CURRENT
FINAL VOLTAGE
P1:8
P1:9
REVPWR
RF OUTL11
5T0.2_18g
C46
0.01u
C44
0.01u
C37
47p
C3124p
C3047p
R27
120
R2910K
R14120
C10
0.01u
C1947p
C11
0.01u
R77100
D4
1N4148
D61N4148
R731K
6-
5+
7
LM324J
U10:B
13-
12+
14
LM324J
U11:D
9-
10+
8
LM324J
U11:C
C660.01u
C70
4.7u
D191N4148
D20
1N4148
CW
W
CC
W
10K
R78
CW
W
CC
W
10KR80
R82
10
R83
470
R84
10K
R85
10K
R87
10K
R97
100K R100
1K
R101
100K
R94
10K
C68
4.7u
D2
1
1N
41
48
-12V
R9110K
CW
W
CC
W
10KR58
REVPWR
C76
100p
+12V
-12V
-12V
AGC
C57
0.1u
C58
0.01u
C60
100p
D9
1N4148
CW
W
CC
W
10KR47 R50
10K
R55
8.2K
R56
100K
R7110K
2-
3+
11
4
1
LM324J
U5:A
C77
100p13
-
12+
14
LM324JU10:D
R10810K
R107
3.9K
+12V
R59
1k
R521k
P2:7
9-
10+
8
LM324J
U5:C
6-
5+
7
LM324J
U5:B
P1:4
P1:3
P1:2
AGC IN RANGE DETECTER
C54
100p
C61100p
C65100p
DRIVE LOW
FAULT
REV PWR REAR
REV PWR METER
R62
470 R6310K R70
10K
R76
10
2-
3+
11
4
1
LM324J
U10:A
-12V
P2:8
6
P1:7
P1:1
METERING
DEVIATIONMETER
FWD PWR METER
FWD PWR REAR
CW
W
CC
W
200R89
Page 14
WIRING DIAGRAM
P2:9 FINAL VOLTAGE
P2:8 FINAL CURRENT
P2:7 BALANCED AUDIO
P2:6 BALANCED AUDIO
P2:5 REMOTE OFF
P2:4 REMOTE ON
P2:3 GND
P2:2 REV PWR
P2:1 FWD PWR
P2:11 SCA
P2:10 COMPOSITE
P2
P1
P2:10 COMPOSITE
P2:11 SCA
P2:9 FINAL VOLTAGE
P2:8 FINAL CURRENT
P2:7 BALANCED AUDIO
P2:6 BALANCED AUDIO
P2:5 REMOTE OFF
P2:4 REMOTE ON
P2:3 GND
P2:2 REV PWR
P2:1 FWD PWR
WHITE 16G BLACK 16GLN
P1:10 REMOTE OFF LED
P1:9 FINAL VOLTAGE
P1:8 FINAL CURRENT
P1:7 DEVIATION
P1:6 CONTROL VOLTAGE
P1:5 5V
P1:4 DRIVE LOW
P1:3 FAULT
P1:2 REV PWR
P1:1 FWD PWR
+V OUT
-V OUT
PSU
24V for 25E
AC IN
AC IN
8
1
2
3
4
5
6
7
9
10
TB5
SCAJ2
GND
COMPOSITEJ1
GND
J3
10A
F2
RF OUTJ2
GND
150W POWER AMPLIFIER(USED ON FM150E ONLY)
48V
48V OUT
PSU48V for 150E
ONLY
AC IN AC IN
Page 15
WIRING DIAGRAM
P1:7 DEVIATION
P1:6 CONTROL VOLTAGE
P1:5 5V
P1:4 DRIVE LOW
P1:3 FAULT
P1:2 REV PWR
P1:1 FWD PWR
P1:8 FINAL CURRENT
VOLTS
GREEN 22G
LED PCB
FWD PWR
REV PWR
P1:10 REMOTE OFF LED
P1:9 FINAL VOLTAGE
AMPS
DEV
W 10K
R10
GND
FAN1
24VDC
14
3 2
S2
M1
10mA
GND
GND
2
3
1
SW1
Page 16
Parts list Chassis
Parts list Exciter Board
Page 17
Parts list Synth Board
Page 18
Page 19
Parts list LED Board
PTEK1814 Schooldale Drive
San Jose CA 95124408 448 3342 FAX 408 448 5951
Printed in USA
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