Read Sony KDL-42W850A / KDL-47W850A / KDL-55W850A Service Manual online
RB1G
CHASSIS
W850A
SECTION 3
TROUBLESHOOTING
3-1. No Power
No Power
Check STBY 3.3V
L9101 (B-others)
C9318 (BK*)
G* Board
Replace
Between G* Board to
B* Board Harness
NG
NG
Harness
OK
OK
B* Board
DC/DC converter check
NO POWER: Ayu2 control
(*)
Size
B* Board Type G* Board Type
42”
BA2-S GL2S
47”
BA2-S
GL2S
15
55”
BA2-S
GL2E
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