Sony KDE-50XS955 Service Manual page 38

A1U
[AUDIO SW, AUDIO PROCESSOR, VIDEO SW, INPUT TERMINAL]
— A1U BOARD —
1
A
B
C
D
<COMPONENT SIDE>
• A1U BOARD SEMICONDUCTOR LOCATION
IC
IC510 D-2
IC512 D-2
( Component ) ( Conductor )
Side Side IC514 C-2
IC303 A-1 IC521 C-1 Q301
IC522 D-2
IC404 A-3 Q302
IC523 C-3
IC500 C-2 Q303
IC501 D-2 IC524 C-3 Q304
IC526 D-2
IC502 D-2 Q305
IC504 D-2 Q306
IC507 C-1 Q307
* : Refer to Terminal name of semiconductors in silk screen printed circuit (see page 3-14)
2 3
TRANSISTOR
Q308 D-1 2 Q318 B-3
Q309 D-1 Q320
2
( Component ) ( Conductor )
*
Side Side Q310 D-1 Q321
2
B-1 Q311 D-1 2 Q324 B-3
2
Q312 D-1 Q410
B-1 2
2
Q313 B-1 Q411
B-1 2 2
B-1 Q314 B-1 2 Q412
2
Q315 B-1 Q501
B-1 2
2
Q316 B-1 Q502 D-2
D-1 2 2
D-1 Q317 B-1 2 Q503 D-1
2
1
A
B
C
D
DIODE
2 Q504 D-1 2
B-1 Q505 D-2
2 2
( Component ) ( Conductor )
B-1 Q508 D-2 Side Side
2 2
2 Q509 C-2 2 D301 D-1
A-1 Q510 D-3
2 2 D302 D-1
A-1 Q512 D-3
2 2 D303 B-2
A-1 2 Q513 D-2 2 D304 B-2
D-2 Q514 D-1
2 2 D311 C-2
Q515 D-1
2 2 D312 C-3
2 D313 B-2
2
<CONDUCTOR SIDE>
D314 B-2 3 D408 C-3 3 D601
D315 B-2 D409 C-3 D602
3 3
*
D316 C-2 D410 C-3 D607
3 3
D317 C-3 3 D501 C-3 3 D608
3
D318 B-2 D502 C-3 D609
3 3
3
D319 B-2 D505 D-2
3 3 qa
D320 B-2 3 D506 C-2 3
3
D322 D-1 D508 D-2
9 3
3
D323 D-1 - D509 D-3
3 3
D407 C-3 3 D510 D-1 3
3
3
C-2 3
C-2
3
D-2
3
D-1 3
D-3
3
KDE-50XS955 (UC) 3-18