No Picture Aep Destination - Sony KDL-40W900A Service Manual

Troubleshooting
3-5. No Picture
3 5 1 No Picture AEP Destination (BA2 S AEP BKE) 3-5-1. No Picture AEP Destination (BA2-S AEP, BKE)
SCART RGB
No Picture
NG
Check SCART_FB
[LOW]
Check CN3101
IC9001 V15 IC9001 V15
Connection
[FBIN]
OK [HIGH]
NG
Check wave between
Detailed check
C3107/C3108/C3109
CN3101 Pin No. 7,
11,15 signal path
and IC9001
OK
Detailed SDIF path
Check between
IC9001 and IC9000
NG
NG Check signal
Confirm Analog RF
between IC9001 and
input working
IC9000 [R8633]
OK
OK
Ayu2 [IC9000]
Brownie [IC9001]
Problem
Problem
Size Size B* Board Type B Board Type G Board G* Board
Type
OTHERS JP
40" BA2-S BA2-W G1A
46" 46 BA2-S BA2-S BA2-W BA2-W G1A G1A
55" BA2-S BA2-W G1B
No Picture AEP
SCART CVBS
No Picture
NG
Check SCART_FB
[HIGH]
Check CN3101
IC9001 V15 IC9001 V15
Connection
[FBIN]
OK [LOW]
NG
Detailed check
Check wave between
CN3101 Pin
C3106 and IC9001 C3106 and IC9001
No.20 signal path
OK
Detailed SDIF path
Check between
IC9001 and IC9000
NG
NG Check signal
Confirm Analog RF
between IC9001 and
input working
IC9000 [R8633]
OK OK
Ayu2 [IC9000]
Brownie [IC9001]
Problem
Problem
Note: Note:
(AYU2) – IC9000
(Brownie)- IC9001
Video 2
No Picture
NG
Check J3104
Check if input OSD
C Connection, ti
is GREY OUT
VIDEOB_DET
OK
NG
Check wave between
Detailed check
C3120 and IC9001 C3120 and IC9001 J3104 signal path J3104 signal path
OK
Detailed SDIF path
Check between
IC9001 and IC9000
NG
NG Check signal
Confirm Analog RF
between IC9001 and
input working
IC9000 [R8633]
OK OK
Ayu2 [IC9000]
Brownie [IC9001]
Problem
Problem
RB1G
W900A/904A/905A
Component
No Picture
NG
Check J3104 Conn
Check if input OSD
VIDEOB DET VIDEOB_DET,
is GREY OUT
CR_DET
OK
NG
Check wave
Detailed check
Between C3120/C3121
J3104 signal path J3104 signal path
and IC9001
OK
NG
HDMI EQ [IC5009]
Confirm HDMI
Problem
input working
OK
Detailed TMDS path
check between
IC9001 and IC5009
NG
NG Check signal
Confirm other analog
between IC9001 and
Input working
IC5009 [RB5008]
OK OK
Brownie [IC9001] Ayu2 [IC9000]
Problem Problem
CHASSIS
119