KDL-40W900A, KDL-40W905A, KDL-46W900A, KDL-46W904A, KDL-46W905A, KDL-55W900A, KDL-55W904A, KDL-55W905A - Sony TV Service Manual (repair manual). Page 119

Read Sony KDL-40W900A / KDL-40W905A / KDL-46W900A / KDL-46W904A / KDL-46W905A / KDL-55W900A / KDL-55W904A / KDL-55W905A Service Manual online

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

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