C66
0.1u 20%
R620
10
1
2
3
4
5
6
7
8
9
CZ61
CON9
GND
+18V
-18V
LOUT
ROUT
RIN-
RIN+
LIN+
LIN-
C62
220p
R62
220
R64
2.2M
Q62
2S
K
209 GR
R68
1K
R610
430 2%
Q65
A1312-GR
Q68
2SC2881-Y
C64
22p
R612
1K
Q66
2SA1201-Y
R614
10K
R616
10
C67
0.1u 20%
C68
0.1u 20%
C610
100p
R617
10
Q69
C3324-GR
Q611
C3324-GR
R622
1K
R624
620
C612
1nF
R619
10
C61
220p
R61
220
R63
2.2M
Q61
2S
K
209 GR
R67
1K
R69
430 2%
Q63
A1312-GR
Q67
2SC2881-Y
C63
22p
R611
1K
Q64
2SA1201-Y
R613
10K
R615
10
C65
0.1u 20%
C69
100p
R618
10
Q610
C3324-GR
Q612
C3324-GR
R623
1K
R625
620
C613
1nF
RCA31A
DISC
RCA31C
CD
RCA31E
MP
RCA32A
AUX
RCA32C
TUNER
RCA32E
TAPE2
RCA33E
REC1
RCA33C
TAPE1
RCA33A
REC2
C317
100p
C319
0.1u 10%
C324
47u/50
C323
47u/50
RCA34A
Pre-out 1 L
RL31B
RL32B
RL33B
RL34B
RL35B
RL36B
RL37B
RL38B
RCA31B
DISC
RCA31D
CD
RCA31F
MP
RCA32B
AUX
RCA32D
TUNER
RCA32F
TAPE2
RCA33F
REC1
RCA33D
TAPE1
RCA33B
REC2
RL31A
RL32A
RL33A
RL34A
RL35A
RL36A
RL37A
RL38A
R333
4.7K
R335
68
C341
47u/25
C320
0.1u 10%
RCA34B
Pre-out 1 R
R334
4.7K
R336
68
C342
47u/25
RL31C
RL32C
RL33C
RL34C
RL35C
RL36C RL37C
RL38C
D37
1N4148
D38
1N4148
D39
1N4148
D310
1N4148
D311
1N4148
D312
1N4148
D313
1N4148
R348
100K
R347
100K
R346
22K
R345
22K
1
2
3
4
5
6
7
8
9
CB34
1
2
3
4
5
6
7
8
9
CB32
IN MODULE
1
2
3
4
5
6
7
8
9
CB33
OUT MODULE
MF
MF
TO CZ71
L-CH INPUTS
R-CH INPUTS
Soft Cliping
Protection
+12V
IR IN
IR OUT
DI
SC
CD
MP
AUX
T
UNER
T
APE2
T
APE1
+12V
-18V
+18V
+5V
Soft Cliping
Protection
-18V
+18V
+18V
-18V
+5V
+18V
-18V
C345
0.1uF
C346
0.1uF
Standby
Standby
+5V
+12V
PHONE1A
IR OUT
PHONE1B
IR IN
PHONE2
+12V Trigger
R2
10
C3 0.1uF
R393 10K
Q301
2SC1815
R394
1K
Q302
2SA1015
R395
33
+5V
+5V
R389 10K
R396
4.7K
C362
10n
R397 10K
VR302
100
R386
1.8
R384
560 1%
VR301
100
R385
1.8
R383
560 1%
C356BEE RELAY CONTROL CIR.
+12V
+12V
R391
560 1%
R392
560 1%
12V T
R
IG
MP
1
2
3
CB35
CON3
RL39B
RL39A
MP
R390
330
C363
100pF
C364
100pF
RCA34C
Pre-out 2 L
RCA34D
Pre-out 2 R
R365 30K
C365
56pF
Speak B
Speak A
RL310B
RL310A
R398
100
R399
100
RL310C
D317
1N4148
R366
30K
C366 56pF
MP
AUX
TAPE2
TUNER
DISC
TAPE1
CD
Mute
MDC
Mu
te
C
131
47uF/
50V
C
231
47uF/
50V
+26V
+26V
-26V
-26V
MODULE IN L
MODULE IN R
MODULE SEL
1
2
3
4
5
6
7
8
9
10
11
12
CB36
TO EXTRA MODULE
+26V
+5V
TO MDC TXD
MODULE IN R
TO MDC RXD
-26V
MODULE IN L
MODULE DET
MODULE SEL
EXTRA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CB31
TO CZ76
MODULE DET
TONE DEF
RL39C
D316
1N4148
MP REAR
REAR PANEL
MP REAR
1
2
3
4
5
6
7
8
9
10
11
12
13
CB37
CON12
+5V
TONE DEF
1
2
CB38
TO EXTRA MODULE
+15V MDC
+15V MDC GND
VOL V-
VOL V+
VOL V+
VOL V-
R31
470
R33
470
R35
470
C31
100p
C33
100p
C35
100p
R37
470
R39
470
R311
470
C37
100p
C39
100p
C311
100p
R313
470
R315
470
R317
470
C313
100p
C315
100p
R32
470
R34
470
R36
470
C32
100p
C34
100p
C36
100p
R38
470
R310
470
R312
470
C38
100p
C310
100p
C312
100p
R314
470
R316
470
R318
470
C314
100p
C316
100p
C318
100p
R341
1M
R342
1M
R343
1M
R339
1M
R338
1M
R337
1M
R349
1M
R351
1M
R353
1M
R355
1M
R357
1M
R350
1M
R352
1M
R354
1M
R356
1M
R358
1M
1
2
3
4
CB39
TO RS232 CZ79
C367
4.7u/25
C325
47u/25
R321
3K3 MF
R323
750 MF
R319
N.
I.
R325
390 MF
R327
180 MF
C327
22n 5%
C329
0.1u 5%
R329
1K5 MF
R331
390 MF
C331
0.
22u
C333
1u,
63V,
5%
C335
N.I.
C339
1u/16
TONE DEFEAT
C326
47u/25
R322
3K3 MF
R324
750 MF
R320
N.
I.
R326
390 MF
R328
180 MF
C328
22n 5%
C330
0.1u 5%
R330
1K5 MF
R332
390 MF
C332
0.
22u 5%
C334
1u,
63V,
5%
C336
N.I.
C340
1u/16
TONE DEFEAT
BY MOTOR
BY MOTOR
VO
LUME PO
T
VOLUME POT
BAL
AN
C
E PO
T
BAL
AN
C
E PO
T
BASS PO
T
BASS PO
T
T
R
EBLE PO
T
T
R
EBLE PO
T
63V
63V
63V
63V
5%,
63V
C337
0.1U
C338
0.1u
C321
0.1U
C322
0.1U
C350 N.I.
R388
20k
C349 N.I.
R387
20K
RT
31A
10KA
RT
31B
10KA
RT
32B
10KA
RT
32A
10KA
RT
34A
20K MN
RT
34B
20K MN
R361
N.I.
R362
N.I.
R363
51K
R364
51K
B1
7
A1
5
W1
6
C1
8
RT
33A
20KB
B2
3
A2
1
W2
2
C2
4
RT33B
20KB
VR304
10K
VR303
10K
OFF
ON
1
3
2
RL311A
4
6
5
RL311B
+5V
RL311C
D319
1N4148
ON
OFF
TONE D
1
2
3
4
5
6
7
8
9
10
11
12
13
CZ37
CON12
R407
1K
R402
10K
R404
10K
R403
1K
R405
1K
R406
1K
C417
4u7/25V
C418
4u7/25V
DGND
DGND
VOLUME CONROL
C303
220p
C302
220p
C301
10uF/50V
DGND
Q402
C1815
Q404
C1815
Q401
A1015
Q403
A1015
-
+
M
RT33C
20KB
VOL
V-
VOL
V+
VOL V-
VOL V+
+5V
FRONT R
FRONT L
D320
1N5819
D321
1N5819
SCHEMATICS DIAGRAM(2/4)
PREAMP CIRCUIT Vm1.0
PCB-1:MAIN BOARD Vm2.0
Preamp AMP Module Vm1.0
PCB-9: Preamp AMP Module Vm2.0
Tone and Volume Circuit
Vm1.
0
PCB-4:
Tone and Volume board Vm2.
0
16
