Schematic Diagram - Deck Board - Sony HCD-RG295 Servise Manual

Q Q
3 7 6 3 1 5 1 5 0
7-10. SCHEMATIC DIAGRAM – DECK Board –
CN008
11P
PB-L
PB-R
A-GND
REC-R
REC-L
REC/PB SW
+9V
REC-MUTE
(Page 36)
O-BIAS
T E DECK-D-GND
L 1 3 9 4 2 2 9 6 5 1 3
NC
w w w
HCD-RG295/RG495/RG595
• See page 52 for Waveforms.
Q405,406,408
DECK-A/B SELECT SWITCH,
REC/PB SELECT SWITCH
R350
0
R489
22k
R349
100 R484 Q406
22k 2SA1235
Q408
2SA1235
R483
22k
R488 R351
22k 1k
Q405
R481 2SC3052
4.7k R485
R482 2.2k R490
47k 4.7k
R325 100 C329 0.047
R326 100 C330 0.047
C433 0.01
C401
0.1 R401 R403
50V 47k 22k
3 8
2
1
C411 C413
10p 220p
IC401(1/2)
FB301 BA4558
0
C405
R409
220p
100k
C403 R405
47p 47k
REC AMP R407 R423
4.7k 47k
C409
C430 R415 10
0.1 2.2k 50V
C410
R416
10
2.2k
50V
R408
R424
C404 R406 4.7k
47k
47p 47k
C406
R410
220p
100k
IC401(2/2)
BA4558
C402 C412 C414
6
0.1 R402 R404 10p 220p
7
50V 47k 22k
5
4
Q409,410
Q451,452
REC CONTROL SWITCH
REC BIAS SWITCH
R455
10
R442
47k
Q410
RT1N431C
R451
10k
R452
Q409 47k
RT1N431C
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C315 R309
8 47p 470
3
1
2
R323 R317
4.7k 470k IC301(1/2)
NJM14558M-TE2
R313
47
R319 C323 C325 R311
22k 0.0047 0.0022 220
PB AMP C317
10
50V
C318
10
50V
C352 R320 C324 C326 IC301(2/2) R312
0.1 22k 0.0047 0.0022 NJM14558M-TE2 220
R314
C351 47
220 R324
10V 4.7k R318
6
470k R310
7
470
5
4
C316
D301 UDZW-TE17-4.3B
Q403 47p
2SA1235
REC SWITCH
R427
0
R413 R445 R431 R435
220k 0 1k 10k
R411
470k
R429 Q401
10k R433 C415 2SK2158
C417 C431 R440 47k 0.0047
MUTING
0.01 0.1 10k
R434 C416
Q Q
47k 0.0047
3 7 6
C418
0.01 R430
10k
D401
R412 R414 MC2838
470k 220k
Q402
2SK2158
R446 R432 R436
MUTING
0 R428 1k 10k
0
Q404
2SA1235
REC SWITCH
R449 R450 R456
22 22 22
R453 R454
4.7k 4.7k
C453
Q451 0.001
Q452
KTA1271Y-AT C454
2SC3052
0.0047
Q453
2SC2001
R457
BIAS
22k C452
JR402 OSC 47
0 16V
R458 C458
4.7 0.0022
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2 4
8 9 9
Q301
2SJ460
PB SWITCH
(DECK-A)
S
R306 R305
220k 220k R301 C301
47k 1000p
C305
220k
Q302
2SJ460
R302 C302
PB SWITCH
47k 1000p
(DECK-A)
S
R315
100
S
Q303
2SJ460 R303 C303
47k 1000p
PB SWITCH
(DECK-B)
R304 C304
C306
47k 1000p R316
220k
100
S
Q400,407
Q304
C354
2SJ460 MUTING CONTROL
0.1
PB SWITCH
R443 SWITCH
(DECK-B) 10k
Q407
2SA1235
C356
10
50V
R307
4.7k
S
JR310 C355
R447 R439
0 0.01
1M 4.7k
C307
0.01
C460
R308
470p
4.7k
3 1 5 1 5 0 8 9 2
S
R441
S Q400 0
2SK2158
C461
470p
C462
470p
R466
0
R464
1k
R462
2.2k R461 R463 R465
2.2k 1k 0
1 6
R459 R460
0 0
2 5
3 4
L451
BIAS
OSC C456
0.01
m
c o
.
HCD-RG295/RG495/RG595
2
8 9 9
HP1
(PB)
(DECK-A)
CN301
3P
L-CH
R-CH
Q305
HRPE1
2SC3052
(REC/PB/ERASE)
MUTING
CN302
(DECK-B)
8P
ERASE
Q306
2SC3052
MUTING
R-CH
4 9 8 2 9 9
L-CH