Sony KD-49X7 D Series Service Manual page 16

1 No Power
BFM Board Model
with G* board
No Power
Check STBY 3.3V
NG
C413
near CN400
on BFM board
OK
BFM Board
Replace NG
Between G* Board to G* Board
BFM Board Harness
OK
Harness
u-Com Failure
DDCON/LDO
Main Device Failure
with AC-ADP
No Power
Check 19.5V
NG
C401
near CN400
on BFM board
OK
BFM Board
Replace
NG
LD Board or
Between LD Board to
AC Adaptor
BFM Board Harness
OK
Harness
u-Com Failure
DDCON/LDO
Main Device Failure
16