Sony WEGA KDE-37XS955, Service Manual

Page: 36 / 169

KDE-37XS955/42XS955 (UC) 3-18
A1U
[AUDIO SW, AUDIO PROCESSOR, VIDEO SW, INPUT TERMINAL]
— A1U BOARD —
<CONDUCTOR SIDE> <COMPONENT SIDE>
1 2 3
A
B
C
D
1 2 3
A
B
C
D
D314 B-2
3
D315 B-2 3
D316 C-2 3
D317 C-3
3
D318 B-2
3
D319 B-2
3
D320 B-2
3
D322 D-1 9
D323 D-1 -
D407 C-3
3
D408 C-3
3
D409 C-3 3
D410 C-3 3
D501 C-3
3
D502 C-3
3
D505 D-2
qa
D506 C-2
3
D508 D-2 3
D509 D-3 3
D510 D-1
3
DIODE
*
D301 D-1
3
D302 D-1 3
D303 B-2 3
D304 B-2
3
D311 C-2
3
D312 C-3
3
D313 B-2
3
• A1U BOARD SEMICONDUCTOR LOCATION
IC
IC303 A-1
IC404 A-3
IC500 C-2
IC501 D-2
IC502 D-2
IC504 D-2
IC507 C-1
* : Refer to Terminal name of semiconductors in silk screen printed circuit (see page 3-14)
IC510 D-2
IC512 D-2
IC514 C-2
IC521 C-1
IC522 D-2
IC523 C-3
IC524 C-3
IC526 D-2
TRANSISTOR
*
Q301 B-1
2
Q302 B-1 2
Q303 B-1 2
Q304 B-1
2
Q305 B-1
2
Q306 D-1
2
Q307 D-1
2
Component
( )
Side
Conductor
( )
Side
Component
( )
Side
Conductor
( )
Side
Component
( )
Side
Conductor
( )
Side
Q308 D-1
2
Q309 D-1 2
Q310 D-1 2
Q311 D-1
2
Q312 D-1
2
Q313 B-1
2
Q314 B-1
2
Q315 B-1 2
Q316 B-1 2
Q317 B-1
2
Q318 B-3
2
Q320 B-1 2
Q321 B-1 2
Q324 B-3
2
Q410 A-1
2
Q411 A-1
2
Q412 A-1
2
Q501 D-2 2
Q502 D-2 2
Q503 D-1
2
Q504 D-1
2
Q505 D-2 2
Q508 D-2 2
Q509 C-2
2
Q510 D-3
2
Q512 D-3
2
Q513 D-2
2
Q514 D-1 2
Q515 D-1 2
D601 C-2
3
D602 C-2 3
D607 D-2 3
D608 D-1
3
D609 D-3
3