Sony XBR-65Z9D Service Manual page 21

FLOW
1-1. NO POWER
with G* board
No Power
Check STBY 3.3V
NG
C497
near CN401
on DPA board
OK
Check STBY 3.3V
NG
C402
near CN400
on BM2 board
OK
BM2 Board
XBR-65Z9D
NG
Replace
Between G* Board to G* Board
DPA Board Harness
OK
Harness
NG
Replace
R407, R408
Between DPA Board to
on DPA Board
BM2 Board Harness
OK
Harness
u-Com Failure
DDCON/LDO
Main Device Failure
TROUBLE SHOOTING
21