Read Sony KD-55X9000C Service Manual online
TROUBLE SHOOTING
3-2. NO POWER
3-2-1. NO POWER-PCU
No Power
Check STBY 3.3V
Replace
NG
NG
Check STBY 3.3V
C9030
On B* board
H
G* Board
Replace
Between G* Board to
B* Board Harness
NG
OK
NG
OK
Harness
B* Board
u-Com Failure
DDCON/LDO
Main Device Failure
123
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