Sony KJ-32W7 C Series Service Manual page 85

Troubleshooting
3-4-4 : No Picture UC/GA/CH (BAX_L +TUS UC/GA/CH) (a)
No Picture GA
Video 1
No Picture
NG
[LOW]
Check if input
OSD is GREY
OUT
OK [HIGH]
NG
Check wave between
C3000 and IC9001
OK
Confirm
NG
Analog RF
input
working
OK
Brownie [IC9001]
Problem
NG J3101
Check J3101
Connectivity
Connection
Problem
OK
Detailed check all parts
at VIDEOA_DET
at [VD3103,R3116,
NG
C7030]
OK
J3101
Parts Broken
Connector
Problem
OK
Detailed check all parts
NG
CN3101 along signal path at
pin YEL:
[VD3110, R3008, R3000]
Check signal Detailed SDIF
between path
NG
IC9001 and Check between
IC9000 IC9001 and
[R8570] IC9000
OK
Ayu2 [IC9000]
Problem
VIDEO 2
No Picture
NG
[GREY]
Check if input Check J3104
OSD si grey out Connection
OK
OK [NOT
GREYED]
Detailed check parts
at VIDEOB_DET
Path [C7026]
OK
J3104
Connector
Problem
OK
Detailed check all parts
NG
Check wave
J3104 along signal path at pin
between C3018 and
GREEN:
IC9001
[VD3127, R3014, R3021]
OK
Check signal
Confirm
between
NG
Analog RF
IC9001 and
input
IC9000
working
[R8570]
OK
OK
Brownie
Ayu2 [IC9000]
[IC9001]
Problem
Problem
BAX-L
TUS/TUW
NG J3104
Connectivity
Problem
NG
Parts Broken
NG
Detailed SDIF
path
NG
Check between
IC9001 and
IC9000
85
LEGEND