Sony KDL-32EX400 Service Manual page 24

3-4. STANDBY LED BLINK
1) 2 times blinkings (Main Power Error)
2 times Blinkings
Check REG12V at
the BAL Board
12V NG
pins 6/7 of
CN3800 on
12V OK
BAL Board
NG
Replace
Between G* Board to
BAL Board Harness
OK
Harness
24
TROUBLE SHOOTING
G* Board
KDL-32/40EX400(HK/WB/GA)