Sony STR-DB900 Service Manual

2626
STR-DB900
STR-DB900
4-14. SCHEMATIC DIAGRAM — AMP BOARD (3/4) —
C364
FB308
R361
R363
R369
R370
R371
L326
10µH
470µH
R364
R373
R512
R493
R494
R495
R513
R496
L312
L310
L313
R425
R469
R366
FB329
FB330
FB331
R376
D317
D318
R547
R548
C462
C463
C478
R562
C555
C556
C452
C363
C460
C663
C550
C551
C368
C445
C443
C442
C451
C449
C369
C453
C448
C450
C563
C569
C495
C558
Q324
IC313
IC317
IC316
IC315
Q353
Q341
C562
C509
C559
C410
C458
C544
C459
C499
C500
Q340
Q343
C565
C566
C545
C474
C477
Q345
C571
C572
FB332
R374
R375
C473
IC314
R362
R360
C446
C444
C447
R552
R551
R549
D328
L328
R368
C441
C440
C439
C438
C437
C430
C431
C432
C435
L311
C479
C456
R379
R377
R388
R386
Q354
Q364
Q362
Q323
Q326
D323
D320
C539
C540
Q325
C588
C587
C534
C590
C589
C529
C594
C593
C592
C591
C530
C527
R516
Q355
THP305
R476
R515
R517
R477
C574
R560
R385
R499
R486
THP304
R445
Q352
R461
C557
R514
C494
R426
R432
R365
Q339
Q338
C466
R424
C454
C457
C409
C455
C472
C470
R467
C564
Q342
C471
Q344
C570
R473
C568
R472
R470
R372
R367
C434
C375
C433
FB305
FB603
C436
IC329
IC330
IC331
IC332
R550
R508
R507
R506
R545
R546
C475
TM304
TM305
4.7
6.3V
0UH
330
1/10W
330
1/10W
330
1/10W
330
1/10W
330
1/10W
120
1/10W
10
1/10W
82k
220k
220k
220k
82k
220k
0
0
10
1/10W
0UH
0UH
0UH
10k
1SS352-TPH
1SS352-TPH
10
10
1
250V
1
250V
1
250V
100
100p
100p
220
25V
47
63V
100
63V
47p
0.1
0.1
0.1
27p
27p
27p
27p
27p
0.1
0.1
27p
27p
0.015
0.015
100p
0.015
2SA1162Y-T
V.PROTECT
CXD9730Q
TC74AC08FT
(EL)
TC74AC08FT
(EL)
TC74AC08FT
(EL)
2SC2712G-T
TEMP DETECT
2SK3669
BOOSTER
0.1
0.1
0.1
100V
0.1
100V
470
63V
10
63V
470
63V
0.1
100V
0.1
100V
2SK3669
BOOSTER
2SK3669
BOOSTER
0.1
100V
0.1
100V
10
63V
470
63V
100
63V
2SK3669
BOOSTER
0.1
100V
0.1
100V
0UH
10
1/10W
120
1/10W
0.1
TC74AC08FT
(EL)
330
1/10W
330
1/10W
220
25V
27p
0.1
10
10
10
1SS367-T3S
ONY
330
1/10W
0.1
0.1
0.1
0.1
47
63V
2200
10V
0.1
0.1
0.1
1
250V
0.1
0.1
1W
0.1
1W
0.1
1W
0.1
1W
2SC2712G-T
TEMP DETECT
2SA1162Y-T
I.PROTECT
2SA1162Y-T
I.PROTECT
2SA1162Y-T
V.PROTECT
2SA1162Y-T
V.PROTECT
1SS352-TPH
1SS352-TPH
4.7
4.7
2SA1162Y-T
V.PROTECT
680p
680p
680p
680p
680p
680p
680p
680p
680p
680p
680p
680p
4.7k
2SC2712G-T
TEMP DETECT
15K
4.7k
15k
33
360
0.1
100
10k
4.7k
15k
15K
4.7k
2SC2712G-T
TEMP DETECT
360
0.1
33
0.015
2.2
0
10
1/10W
2SK3669
BOOSTER
2SK3669
BOOSTER
100p
2.2
220
25V
0.1
0.1
220
25V
0.1
220
25V
2.2
100p
2SK3669
BOOSTER
220
25V
2SK3669
BOOSTER
100p
0
0.1
2.2
220
120
1/10W
120
1/10W
4.7
6.3V
470p
0.1
0UH
0UH
4.7
6.3V
HIP2101IBZT
HIP2101IBZT
HIP2101IBZT
HIP2101IBZT
10
10
1/10W
10
1/10W
10
1/10W
10
10
470
63V
SP2P
W/G.P
JALCO
SP2P
W/G.P
JALCO
BUS
VDD
XO VDD
DVDD
OVERCURRENT
TEMP
G10V
I.PROTECT
V.PROTECT
EN
GND
SHIFT
SCDT
NSMUTE
INIT
LRCKO
LAT3
FSOI
XSFOUT 1
XSFOUT 2
XFSIIN
BCK
DATA SL/SR
DIGITAL POWER AMP
DIGITAL POWER AMP
DIGITAL POWER AMP
DIGITAL POWER AMP
PROCESSOR
PCM/PWM
SURROUND L
SURROUND R
(IMPEDANCE
SPEAKER
DEAD TIME
DEAD TIME
DEAD TIME
DEAD TIME
(2/4)
(4/4)
BOARD
BOARD
BOARD
AMP
AMP
AMP
(1/4)
(Page 25)
(Page 27)
(Page 24)
• See page 34, 35 for IC Block Diagrams.

Sony STR-DB900 Specifications

General

Brand	Sony
Model	STR-DB900
Category	Stereo Receiver
Language	English