Schematic Diagram - Power-Amp Board (1/3) - Sony HD-X1 Service Manual

HCD-X1
6-36. SCHEMATIC DIAGRAM – POWER-AMP Board (1/3) –
(1/3)
R245
470
R248
470
R250
10k
INIT
LRCK R269 0
BCK R253 100
DATA2
R256 0
SCK R259 33
C251
0.1
C248
0.1
R262
0
R244
470
R247
470
OVF2
R270
10k
INIT
LRCK R268 0
BCK R252 100
DATA3
C247 0.1
R255 0
C250 0.1
SCK R258 33
R261
0
HCD-X1
• See page 64 for IC Block Diagrams.
R229
10k
R228
10k
C245
0.1
C242
0.1
TP238
R242 0
C239 0.1
R239 0
STREAM PROCESSOR
IC233
CXD9788AR
R236 0
C236 0.1
R233 0
R324
C309
100
16V
C292
100
16V
C233
C254
C257 R265 C260
56
0.1 0.1 0 0.1
35V
C244 C241
0.1 0.1
TP239
R241 0
C238 0.1
R238 0
STREAM PROCESSOR
IC232
CXD9788AR
R235 0
C235 0.1
R232 0
R323
C308
100
16V
C291
100
16V
C232
C253 C256 R264 C259
56
0.1 0.1 0 0.1
35V
C283 C299
2.2 IC303 2.2
R303
DIGITAL POWER AMP CXD9845M
C303 3.3
C369
2.2
2.2
R306 100 C366 0.033
R309 100
C357
R312 100 C360
C354
R318 15k C351
C345 0.033
C342 0.033
C306
0.1
0
C333
R330 0 C336
C330
R336 100 C327
C321 0.033
C312
0.22
C315 C318
R342 R345
2.2 2.2
3.3 3.3
C289 C286
C295
0.22 2.2
2.2
R339
3.3
C282
2.2 IC302
R302
DIGITAL POWER AMP CXD9845M
3.3
C302
2.2
R305 100 C365 0.033
R308 100
C356
R311 100
C359
C353
R317 15k C350
C344
C341
C305
0.1
0
C332
R329 0 C335
C329
R335 100 C326
C320
C311
0.22
C314 C317
2.2 2.2
R341
C288 3.3
C285 C294
0.22
2.2 2.2
R338
3.3
(Page 59)
58 58
C363 C348
D312 680p 680p
R360 P6SMB39AT3
3.3 C277 C276
680p 680p
R357 R354
18 18
C434
56 35V C431
0.1 L312 C392 R372 R384 R396
10µH
1 10k 10k
56 35V D309
L309
P6SMB39AT3 C389 R369 R381
10µH
0.1 1 10k 10k R393
C428
C425
C422
56 35V C419
0.1 D306 L306 C386 R366 R378 R390
P6SMB39AT3 10µH 1 10k 10k
56 35V
D303 L303
C383 R363 R375
P6SMB39AT3 10µH
0.1 1 10k 10k R387
C416
C413
R348 R351
18 18
C395
C379 C380 2200
680p 680p 35V
C324 C339
680p 680p C398
2200
35V
C298 D311 C362 C347
2.2 P6SMB39AT3 680p 680p
R359
C368
3.3 C378 C377 C397
2.2
680p 680p 2200
35V
R356 R353
18 18
C433
56 35V C430
0.1 L311 C391 R371 R383 R395
10µH 1 10k 10k
56 35V
D308 L308
C388 R368 R380
P6SMB39AT3 10µH
0.1 1 10k 10k R392
C427
0.033 C424
C394
0.033 2200
35V
C421
56 35V C418
0.1 D305 L305 C385 R365 R377 R389
P6SMB39AT3 1 10k 10k
10µH
56 35V
L302
D302 C382 R362 R374
10µH
0.1 P6SMB39AT3 1 10k 10k R386
C415
0.033 C412
R347 R350
18 18
C375 C376
R344
680p 680p
3.3
C323 C338
680p 680p
Q303,306,309,312
OVER LOAD DETECT
Q312
Q306 2SA1235TP-1EF
0.0022
2SA1235TP-1EF
0.0022
2.7
R418
100k
2.7
0.0022
R412 R415 C442
100k 100k 2.2
0.0022
Q309
Q303 2SA1235TP-1EF
0.0022
2SA1235TP-1EF
0.0022
2.7
R409
100k
2.7
0.0022
R403 R406 C445
100k 100k 2.2
0.0022
0.0022
0.0022
2.7
2.7
0.0022
0.0022
0.0022
0.0022
2.7
2.7
0.0022
0.0022