Read Sony KDL-55W950B / KDL-55W955B / KDL-55W957B / KDL-65W950B / KDL-65W955B Service Manual online
RB2G
CHASSIS
W950B/ W955B/ W957B/ M25B
11
SECTION 3
TROUBLESHOOTING
3-1. NO POWER
Parts
Board PWB (BAX- B side)
Detail
(L9107)
(C9179)
Troubleshooting
3-1-1. NO POWER
3-1-2. NO POWER – AYU2/AYU2L failure
AYU2/L Fail Suspected
Replace BAX Board
No
eMMC /
RawNAND erase
Product SW rewrite
Recover?
Product SW
writing issue
Yes
No Power
Check STBY 3.3V
L9107 or C9179
Harness
G* Board
Replace
Between G* Board to
BAX Board Harness
BAX Board
NG
OK
NG
OK
C9179
L9107
Size
G* Board Type
55”
G1A
65”
G2A
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