Sony KD-43X85K Service Manual page 15

TROUBLESHOOTING
1.0 No Power - PSU
No Power
No Power
Still
NG
Check STBY 3.3V Replace Harness NG
NG
Before open TV set rear cover & check details,
recommend to do force factory data reset
C1708 near CN1701 between G* Board and Replace G* Board
(method refer "factory data reset")
on BM5A board BM5A Board
OK OK
Harness
TV can boot up
BM5A Board
End
u-Com Failure
DDCON/LDO
Main Device Failure
15
SYS SET