Schematic Diagram(2/4) - NAD C 325BEE Service Manual

SCHEMATICS DIAGRAM
PREAMP CIRCUIT Vm1.2
PCB-1:MAIN BOARD Vm2.0
RL31B
RCA31A
R31
DISC
470
C31
R349
100p
RL32B
1M
RCA31C
R33
CD
470
C33
R351
100p
RL33B
1M
RCA32A
R35
VIDEO
470
C35
R353
100p
RL34B
1M
RCA32C
R37
AUX
470
C37
R355
100p
RL35B
1M
RCA33A
R39
TUNER
470
C39
R357
100p
RL36B
1M
RCA33C
R311
TAPE2
470
C311
R337
100p
RL37B
1M
RCA33E
R313
REC2
470
C313
R338
100p
RL38B
1M
RCA34A
R315
TAPE1
470
R345
R339 220K
C315
MF
100p
1M
RCA34C
R317
REC1
470
C317
100p
RL39B
R393
470
C304
R394
100P CB32
CB35 LOW NOISE AMP
1M
IN MODULE
Ipod-L 3
2
RL39A
Ipod-R 1
R396
CON3
470
C305
R395
100P
RL31A
1M
RCA31B
R32
DISC
470
C32
R350
100p
RL32A
1M
RCA31D
R34
CD
470
C34
R352
100p
RL33A
1M
RCA32B
R36
VIDEO
470
C36
R354
100p
RL34A
1M
RCA32D
R38
AUX
470
C38
R356
100p
RL35A
1M
RCA33B
R310
TUNER
470
C310
R358
100p
RL36A
1M
RCA33D
R312
TAPE2
470
C312
R341
100p
RL37A
1M
RCA33F
R314
REC2
470
R342
C314
RL38A
100p
1M
RCA34B
R316
TAPE1
470
R346
C316
R343 220K
100p
MF
1M
RCA34D
R318
REC1
470
C318
100p
PREAMP IN/OUT MODULE BOARD Vm1.2
PCB-6/7:OUT/IN MODULE BOARD Vm1.0
C68
0.1u 20%
CZ61
+18V
1
LOUT
2
LIN-
3
LIN+
4
GND
R621 30K
5
RIN+
6
RIN-
R64
7
ROUT
C611
8 1M
-18V
9
CON9
Note:C611 is 43pF ON "IN MODULE"
75pF ON "OUT MODULE"
C325BEE RELAY CONTROL CIR.
D37 D38 D39 D310 D311
1N4148 1N4148 1N4148 1N4148 1N4148
RL31C RL32C RL33C RL34C RL35C
C325
C325BEE TONE CONTROL CIR.
R325
47u/25
390 MF
R321
C321
0.1U 3K3 MF
C327
63V
22n 5%
R363 R361
51K
N.I.
C319 R319 R323
N.I. 750 MF
VR303
0.1u 10% C329
30K
0.1u 5%
63V
R327
180 MF
SW31A
1 C335
OFF
2 N.I.
TONE DEFEAT SW
C324
3
ON
47u/25
1 +18V
2
3
R391 560 1%
4
5
6
R392 560 1%
7
8
9 -18V
C323 C326
47u/25
47u/25
R326
390 MF
C322
0.1U
3K3 MF C328
R322 22n 5%
R364 R362
51K N.I.
R320 R324
N.I. 750 MF
VR304
C330
30K
0.1u 5%
63V
R328
180 MF
SW31B
4 C336
N.I.
TONE DEFEAT SW OFF 5
ON 6
+5V
R402
10K
C301
VOLUME CONROL
10uF/50V
Q401 RT33C Q403
A1015 20KB
A1015
- M +
C417 C418
C320 R403 4u7/25V 4u7/25V
1K
0.1u 10%
R406
1K R407
1K
Q402 Q404
C1815 C1815
C303 C302
220p 220p
Q65
A970
R68 Q68
1K D667
C62
220p
R612
C64 1K
22p R616
R620
Q62
33
10
R62 2SK170
C610
220 D63
100p 1N4148
R610
430 2%
R617
10
D64
1N4148
Q66
C67
B647
0.1u 20%
R614
10K
16
D312 D313 D316 +12V
1N4148 1N4148 1N4148
RL39C
RI5 10K
RI1 10K
RL36C RL37C RL38C
QI1
2SC1815
Ipod
+5V
RI4 RI2
R329 4.7K 1K
1K5 MF
QI2
2SA1015
BY MOTOR
C337
C345
0.1U 0.1uF
R331 C341
C339
47u/25
390 MF 1u/16
C349 N.I.
R387 VR301
100
+18V
20K
1
2
R383 R385
3
CB33
4 560 1% 1.8
LOW NOISE AMP
5
OUT MODULE
6
R384 R386
7
8 560 1% 1.8
9
R388
-18V
20k
VR302
C350 N.I. 100
C338
0.1u
R330
C346 0.1uF
1K5 MF
C340
C342
1u/16
47u/25
RT32B
BY MOTOR
BASS POT
10KA
RT33B
20KB
VOLUME POT
R332
390 MF
+18V
R489
100K
D423
R436
Q411
56K
1N4148
A1015
R404
10K
R405
R457
1K
220K
R448
100K
R451 R435
330K 390k
C434
22n/63V -46V
Q63
C66
A970
0.1u 20% R67
1K
C61
220p
R611
C63 1K
22p
Q61
R61 2SK170
C69
220 D61
100p 1N4148
R63
1M
R69
430 2%
D62
1N4148
C65
0.1u 20% R613
10K
CB31
TAP1
10
DISC
9
TAP2
8
TUNER
7
AUX
6
VIDEO
5
CD
4
+12V
+12V 3
IROUT
2
IRIN
1
+5V
TO CZ72
PHONE1B
RI6 10K
C362 RI7
330,5%
10n
IR IN
PHONE1A
RI3
IR OUT
33
R2
10
PHONE2
C3 0.1uF
+12V Trigger
Q31
R335
K363
RCA35A
68
L PRE-OUT
C343
220p
R347 C363
R333
4.7K
100K 100pF
R389
10M
D315
1N4148
D314
N.I.
R390
10M
C344 220p
R336
Q32 RCA35B
68
K363 R PRE-OUT
R348 C364
R334
4.7K
100K 100pF
+12V +12V
-46V -46V
+5V +5V
+18V +18V
-18V -18V
Protection
Standby
Soft Cliping
CB34
Soft Cliping
1
REMOTE MUTE
2
Standby
3
Protection
4
+5V
5
6
VOL-
7
VOL+
8
9
TO CZ71
Ipod
Q67
D667
R615
33
R618 R619
10 10
Q64
B647