Schematic Diagram - Deck Board - Sony HCD-RG490 Service Manual

7-12. SCHEMATIC DIAGRAM – DECK Board –
EXCEPT
RG490:MX/
RG590:MX CN008
11P
PB-L
PB-R
A-GND
(Page 38)
REC-R
REC-L
REC/PB SW
+9V
REC-MUTE
O-BIAS
(Page 42) DECK-D-GND
NC
RG490:MX/
RG590:MX
HCD-RG490/RG590
See page 57 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 D301
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 R453
47k 4.7k
Q410
RT1N431C
2SC3052
R451
10k
R452
Q409 47k
RT1N431C JR402
C315 R309
8 47p 470
3
1
2
R306
220k
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
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 S
R434 C416
47k 0.0047
C418
0.01 R430
10k
D401
R412 R414 MC2838
470k 220k S
Q402
2SK2158
R446 R432 R436
MUTING
0 R428 1k 10k
0
Q404
2SA1235
REC SWITCH
R449 R450 R456
22 22 22
R454
4.7k
C453
Q451 0.001
Q452
KTA1271Y-AT C454
0.0047
Q453
2SC2001
R457
BIAS
22k C452
OSC 47
0 16V
R458 C458
4.7 0.0022
35 35
Q301
2SJ460
PB SWITCH
(DECK-A)
S
R305
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
PB SWITCH 47k 1000p
(DECK-B)
C306 R304 C304
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
R437 R444
0 100k
JR310 C355
0 0.01
R439
4.7k
C307
0.01
R438 R308
0 4.7k
S
R441
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
HCD-RG490/RG590
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
L-CH