Sony XBR-55X900H Service Manual page 18

2021/04/27 23:25:57 (GMT+09:00)
T R O U B L E S H O O T I N G
1.0 No power
BM5/BM5S Board Model
No Power
Check STBY 3.3V NG
NG
Replace
C1708
Harness between G* Board to G* Board
near CN1700 on
BM5/BM5S Board
BM5/BM5S board
OK
OK
Harness
BM5/BM5S
Board
u-Com Failure
DDCON/LDO
Main Device Failure
18
SAFETY NOTES SELF DIAGNOSTIC FUNCTION TROUBLESHOOTING SERVICE ADJUSTMENT DIAGRAM HANDLING GUIDE
SYS SET