Printed Wiring Board - Amp Board (Side B) - Sony STR-DB900 Service Manual

4-11. PRINTED WIRING BOARD — AMP BOARD (SIDE B) —
1 2
A
AMP BOARD (SIDE B)
B
C
D
E
4 1
5 8
F
G
DIGITAL BOARD
E
(Page 21)
H
I
• Semiconductor Location
Ref. No. Location Ref. No.
D301 E-13 D313
D302 F-13 D315
D304 F-12 D317
D305 G-13 D318
D306 F-2 D322
D308 H-4 D326
D310 F-8 D327
D311 H-11 D328
D329
D312 B-13
STR-DB900
• See page 10 for Circuit Boards Location.
3 4 5
SURROUND BACK SURROUND R
4 1 4 1 4 1 4 1
5 8 5 8 5 8 5 8
8 1
Location Ref. No. Location Ref. No. Location
G-4 D601 F-2 IC327 G-4
F-6 IC328 F-7
F-5 IC306 F-11 IC329 F-6
F-3 IC307 F-10 IC330 F-6
F-9 IC312 F-9 IC331 F-5
F-13 IC318 F-9 IC332 F-4
F-12 IC319 F-8 IC603 F-3
G-11 IC322 F-13 IC604 F-3
G-11 IC323 F-13
:Uses unleaded solder.
8
6 7
SPEAKER
( )
IMPEDANCE
USE 4–16Ω
SURROUND L CENTER
4 1 4 1 4 1 4 1
5 8 5 8 5 8 5 8
Ref. No. Location Ref. No. Location Ref. No.
Q304 E-11 Q315 H-4 Q334
Q305 H-12 Q316 G-4 Q335
Q306 H-12 Q327 G-4 Q336
Q307 B-13 Q328 E-10 Q337
Q308 B-13 Q329 G-5 Q338
Q309 E-11 Q330 E-9 Q339
Q312 G-4 Q331 E-10 Q340
Q313 E-10 Q332 E-9 Q341
Q314 H-4 Q333 E-9 Q342
23 23
9 10 11
FRONT R FRONT L
3
1
5
4 1 4 1 4 1
5 8 5 8 5 8
1
4
F
HP BOARD
(Page 30)
Location Ref. No. Location Ref. No. Location
E-8 Q343 E-5 Q352 F-5
E-8 Q344 E-4 Q353 F-5
E-7 Q345 E-4 Q354 F-4
E-7 Q346 F-10 Q355 F-3
E-6 Q347 F-10 Q356 C-11
E-6 Q348 F-9 Q358 C-9
E-6 Q349 F-8 Q360 C-8
E-6 Q350 F-7 Q362 C-6
E-5 Q351 F-7 Q364 C-5
STR-DB900
12 13 14
AUDIO OUT
SUB WOOFER
1
REG BOARD
H
(Page 32)
POWER BOARD
G
(Page 32)
1
3
1
3
11
(11)
1-863-033-
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