Sony KD-55X8500A Service Manual page 113

3-4. NO PICTURE
No Picture
Video 1
No Picture
Check if input OSD
is GREY OUT
OK OK
Check wave between
C3106 and IC9001
OK
Confirm Analog RF
input working
OK
Brownie [IC9001]
Problem Problem
KD-55/65 X8500A/ X8504A
Video 2
No Picture
NG
Check J3101
Check if input OSD
connection,
is GREY OUT
VIDEOA_DET
OK OK
NG
Detailed check
Check wave between
J3101 signal path C3120 and IC9001
OK
Detailed SDIF path
Check between
IC9001 and IC9000
NG
NG
Check signal Check signal
Confirm Analog RF
between IC9001 and
input working
IC9000 [R8633]
OK
OK
Ayu2 [IC9000]
Brownie [IC9001]
Or Backend
Problem P bl
Problem
Change B* board
Component
No Picture
NG
Check J3104
Check if input OSD
Connection,
is GREY OUT
VIDEOB_DET
NG
Check wave
Detailed check
Between C3120/C3121
J3104 signal path
and IC9001
Detailed SDIF path
Confirm HDMI
Check between
input working
IC9001 and IC9000
NG
NG
Check signal Check signal
between IC9001 and
IC9000 [R8633]
OK
Ayu2 [IC9000]
Confirm other analog
Or Backend
Input working Input working
Problem
OK
Brownie [IC9001]
Problem
TROUBLE SHOOTING
NG
Check J3104 Conn
VIDEOB_DET,
CR_DET
OK OK
NG
Detailed check
J3104 signal path
OK
NG
HDMI EQ [IC5009]
Problem
OK
Detailed TMDS path p
check between
IC9001 and IC5009
NG
NG
Check signal
between IC9001 and
IC5009 [RB5008] IC5009 [RB5008]
OK
Ayu2 [IC9000]
Or Backend
Problem
113