Sony RB1G Service Manual page 385

Troubleshooting
3-5. No Picture
3-5-3. No Picture UC/GA/CH (BA2-S UC/GA/CH, BKX)
For Atreyu(IC9000) replacement check page6
No Picture GA
Video 1
No Picture
NG Check J3101
Check if input OSD
connection,
is GREY OUT
VIDEOA_DET at
C7008
OK
NG
Check wave between Detailed check
C3106 and IC9001 J3101 signal path
OK
Detailed SDIF path
Check between
IC9001 and IC9000
NG
Check signal
NG
Confirm Analog RF
between IC9001 and
input working
IC9000 [R8627]
OK
OK
Ayu2 [IC9000]
Brownie [IC9001]
Problem
Problem
Video 2
No Picture
NG
Check J3104
Check if input OSD
Connection,
is GREY OUT
VIDEOB_DET at
C7010
OK
NG
Check wave between Detailed check
C3120 and IC9001 J3104 signal path
OK
Detailed SDIF path
Check between
IC9001 and IC9000
NG
Check signal
NG
Confirm Analog RF
between IC9001 and
input working
IC9000 [R8627]
OK
OK
Ayu2 [IC9000]
Brownie [IC9001]
Problem
Problem
RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
Component
No Picture
Check J3104
Conn
NG
Check if input OSD
VIDEOB_DET at
C7010,
is GREY OUT
CR_DET at
C8017
OK
NG
Check wave
Detailed check
Between C3120/C3121
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
Ayu2 [IC9000]
Brownie [IC9001]
Problem Problem