Sony STR-DB900 Service Manual

2323
STR-DB900
STR-DB900
4-11. PRINTED WIRING BOARD — AMP BOARD (SIDE B) —
• See page 10 for Circuit Boards Location. :Uses unleaded solder.
31
1
5
1
4
1
3
1
3
8
1
1 2
25 24
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
1
8
4
5
Q346
Q347
R479
R478
R415
Q348
Q349
R480
R481
R482
Q350
Q351
R484
R483
R485
Q352
Q353
R486
R499
R514
Q354
Q355
R515
R516
R517
R624
R319
R627
R325
R561
R350
Q612
R377
R386
Q364
E
E
E
E
E
E
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
C556
C636
R388
R560
R385
C535
C631
R379
R376
R562
Q362
L303
R430
C555
R352
D327
R349
D304
R559
R429
Q360
L302
D326
C554
R327
R324
R558
Q358
R318
R557
C553
R414
R412
D305
C609
R460
C416
R410
C415
R443
R442
R441
R438
R439
R440
R637
R435
R437
R636
R450
R436
R449
R448
R447
R446
R444
D306
C648
C647
R604
R608
R609
Q610
Q609
Q608
R497
R498
Q327
D308
R471
D313
C338
C337
Q314
Q316
Q315
Q329
Q312
C418
Q309
L326
C359
D312
Q307
Q308
EP302
C528
FB301
FB302
D301
R427
L301
C407
R358
C424
C468
IC318
R382
R383
C425
D322
C304
IC312
C426
C412
R389
R390
C480
Q330
R392
C428
C427
Q333
Q332
C422
C421
C305
FB303
R465
D310
D328
D329
FB304
Q331
C464
R391
C485
C481
IC328
R394
R395
C486
IC319
C487
C469
C350
R396
C351
R397
C558
Q313
Q328
C357
Q334
C392
R422
C489
C488
Q337
Q336
R356
C483
C482
D315
Q335
C493
R423
C409
C466
IC330
R424
R425
C494
IC329
C495
C509
R426
R432
C563
Q338
R461
C420
C314
C313
C312
C308
C500
C499
D302
Q341
Q340
C410
C559
D317
Q339
C557
R445
C568
C564
IC332
R467
R469
C569
C570
C562
R472
R473
C623
Q342
R477
C572
C571
Q345
Q344
C301
C380
C381
C382
C438
C566
C565
D318
C372
Q343
C307
C373
C371
R462
C532
FB309
C574
R476
C379
C646
C645
IC604
R618
FB305
R619
C624
C376
C439
C440
C441
C604
C432
C375
C433
C431
R464
R357
R348
FB307
FB605
IC603
IC331
C634
C435
C605
C606
C622
C607
C610
R620
R621
C340
C601
Q601
C649
C349
R463
R355
FB308
FB604
R628
C630
C629
Q604
Q603
C626
C625
D601
Q602
C640
R321
R632
FB317
R380
C650
D311
FB315
R381
C342
FB316
FB314
R419
R418
C576
C573
C567
C546
C552
C525
C533
C526
C534
C529
C530
C527
C642
C643
FB306
L304
Q304
C531
C201
R625
Q356
C578
R353
R329
R322
C339
C590
C591
C592
C593
C594
C587
C588
C589
C602
C627
C653
C580
C581
C582
C583
C584
C585
C586
C311
C408
C341
IC307
R323
C353
C360
IC306
C356
Q306
Q305
CP301
CP303
CP302
L602
C637
C633
C635
R563
L311
L601
C551
C477
C545
EP304
EP305
L310
L313
C550
C460
C544
C522
L309
L312
C549
C403
C543
CN301
L315
L308
C548
C348
C542
C523
L306
L314
C396
C579
C521
C515
C516
C358
C328
C354
C355
C326
C347
C401
C310
C343
C363
C397
C346
C332
C405
C406
C387
C402
C458
C398
C454
C462
C463
C446
C510
L328
C459
C474
C455
C470
C478
C479
C452
C475
RY302
RY302
C628
C471
C419
C378
C370
C618
C437
C430
C320
C638
C639
EP301
C603
C652
C616
C413
C632
C620
L327
C517
IC322
IC323
C519
C520
C524
C547
TM601
C302
L329
C417
C333
C541
C518
C336
C335
EP303
C327
IC327
L307
C300
C331
R320
CN315
CN309
CN300
SURROUND BACK
TM305
SURROUND R
TM304
SURROUND L
TM303
CENTER
TM302
FRONT R
TM301
FRONT L
J301
AUDIO OUT
SUB WOOFER
H
REG BOARD
(Page 32)
E
DIGITAL BOARD
(Page 21)
G
POWER BOARD
(Page 32)
RY301
RY301
F
HP BOARD
(Page 30)
AMP BOARD (SIDE B)
11
(11)
1-863-033-
SPEAKER
IMPEDANCE
USE 4–16Ω
( )
2
3 4 5 6 7
8
9 10 11 12 13 14
A
1
B
C
D
E
F
G
H
I
• Semiconductor Location
Ref. No. Location
D301 E-13
D302 F-13
D304 F-12
D305 G-13
D306 F-2
D308 H-4
D310 F-8
D311 H-11
D312 B-13
Ref. No. Location
D313 G-4
D315 F-6
D317 F-5
D318 F-3
D322 F-9
D326 F-13
D327 F-12
D328 G-11
D329 G-11
Ref. No. Location
D601 F-2
IC306 F-11
IC307 F-10
IC312 F-9
IC318 F-9
IC319 F-8
IC322 F-13
IC323 F-13
Ref. No. Location
IC327 G-4
IC328 F-7
IC329 F-6
IC330 F-6
IC331 F-5
IC332 F-4
IC603 F-3
IC604 F-3
Ref. No. Location
Q304 E-11
Q305 H-12
Q306 H-12
Q307 B-13
Q308 B-13
Q309 E-11
Q312 G-4
Q313 E-10
Q314 H-4
Ref. No. Location
Q315 H-4
Q316 G-4
Q327 G-4
Q328 E-10
Q329 G-5
Q330 E-9
Q331 E-10
Q332 E-9
Q333 E-9
Ref. No. Location
Q334 E-8
Q335 E-8
Q336 E-7
Q337 E-7
Q338 E-6
Q339 E-6
Q340 E-6
Q341 E-6
Q342 E-5
Ref. No. Location
Q343 E-5
Q344 E-4
Q345 E-4
Q346 F-10
Q347 F-10
Q348 F-9
Q349 F-8
Q350 F-7
Q351 F-7
Ref. No. Location
Q352 F-5
Q353 F-5
Q354 F-4
Q355 F-3
Q356 C-11
Q358 C-9
Q360 C-8
Q362 C-6
Q364 C-5
Ref. No. Location
Q601 E-3
Q602 E-3
Q603 E-2
Q604 E-3
Q608 F-2
Q609 F-2
Q610 F-2
Q612 C-3

Sony STR-DB900 Specifications

General

Brand	Sony
Model	STR-DB900
Category	Stereo Receiver
Language	English