Sony STR-DB900 Service Manual

2727
STR-DB900
STR-DB900
4-14. SCHEMATIC DIAGRAM — AMP BOARD (4/4) —
FB604
R614
R615
R616
R617
C620
C618
R619
C638
C639
R620
R621
FB606
FB607
R498
C614
C615
R604
R608
R609
R556
R460
R462
R464
R463
C419
C417
L601
L602
C535
C420
EP301
EP302
EP303
EP304
EP305
C664
C619
C623
C624
C634
C418
C338
C337
C416
C613
C617
IC601
IC602
C603
C604
C605
C606
C607
Q607
Q612
IC605
IC327
Q608
Q610
Q329
Q312
Q609
Q316
Q315
Q314
D313
R471
Q327
R497
D308
C651
C608
C652
C609
C610
R458
FB605
R459
C415
C349
C649
C601
R603
R553
R611
C612
C611
R610
R554
R555
R612
C616
C621
C646
C622
R618
Q602
C645
Q603
Q604
C629
C630
C632
C625
C626
C628
C633
Q601
R625
R624
R561
C636
R627
D601
D306
C647
R412
R628
C640
R632
THP601
C648
C637
C641
R631
D602
R629
R630
C627
C602
C642
C653
C631
C643
Q606
R607
R605
R606
R613
C635
R465
IC603
IC604
TM601
0UH
120
1/10W
10
1/10W
10
1/10W
120
1/10W
220
25V
220
25V
0
1
250V
1
250V
2.2
0
0UH
0UH
1M
1/10W
27p
27p
15k
4.7k
33
10
1k
1/10W
100
1/10W
560
1/10W
150k
22
50V
0.47
50V
4.7
10V
4.7
47p
0.1
0.015
0.015
100p
0.022
0.1
0.1
0.1
0.1
0.1
TC74AC08FT
(EL)
TC74AC08FT
(EL)
47
63V
0.1
0.1
0.1
0.1
2SA1162Y-T
V.PROTECT
2SA1162Y-T
I.PROTECT
CXD9730Q
2SC2712G-T
TEMP DETECT
2SC2712G-T
TEMP DETECT
DTA114EKA-T146
BUFFER
DTA144EKA-T146
BUFFER
2SC2712G-T
BUFFER
DTA144EKA-T146
BUFFER
DTA144EKA-T146
BUFFER
DTC144EKA-T146
BUFFER
1SS352-TPH
3
10k
1/10W
2SC2712G-T
BUFFER
1k
1/10W
1SS352-TPH
3
4.7
6.3V
4.7
6.3V
2200
10V
0.1
0.1
10k
1/10W
0UH
1k
1/10W
0.001
0.1
0.1
470p
220
10
330
1/10W
27p
27p
330
1/10W
10
10
330
1/10W
220
25V
0.1
0.1
0.1
2.2
2SK3669
BOOSTER
100p
2SK3669
BOOSTER
2SK3669
BOOSTER
0.1
100V
0.1
100V
470
63V
0.1
100V
0.1
100V
470
63V
100
63V
2SK3669
BOOSTER
0.1
1W
0.1
1W
100
100p
10k
1SS352-TPH
1SS352-TPH
3
0.1
22k
360
0.1
4.7k
15K
4.7
0.1
4.7
82k
1SS352-TPH
220k
220k
680p
680p
680p
680p
680p
680p
2SA1162Y-T
V.PROTECT
10
1/10W
10
1/10W
10
1/10W
330
1/10W
10
63V
1k
1/10W
HIP2101IBZT
HIP2101IBZT
SP2P
W/G.P
JALCO
BUS
VDD
XO VDD
DVDD
OVERCURRENT
TEMP
G10V
I.PROTECT
V.PROTECT
RELAY SW
EN
GND
SHIFT
SCDT
NSMUTE
LATCH
INIT
LRCKO
605
605 DATA
605 BCK
FSOI
XSFOUT 2
DIAG
P-STOP
EN
DIGITAL POWER AMP
DIGITAL POWER AMP
PROCESSOR
PCM/PWM
PROTECT CONTROL
SURROUND BACK
(IMPEDANCE
SPEAKER
DEAD TIME
DEAD TIME
(2/4)
(3/4)
BOARD
BOARD
BOARD
AMP
AMP
AMP
(1/4)
(2/4)
BOARD
BOARD
AMP
AMP
(1/4)
(Page 25)
(Page 24)
(Page 26)
(Page 24)
(Page 25)
• See page 34, 35 for IC Block Diagrams.

Sony STR-DB900 Specifications

General

Brand	Sony
Model	STR-DB900
Category	Stereo Receiver
Language	English