Repair Flow Chart - AOC envision L37W431 Service Manual

37'' LCD TV

6. Repair Flow Chart

1. Can not start (LED indicator yellow)
No LED Indicate
OK
Check key board
OK
Check 5V_SB
OK
Check 3.3V_SB
OK
Check PWR_ON Signal
OK
Check main board power supply
Check power cord and board
NG
Repair the keyboard
NG
Check power board power supply
NG
Check U702
Check Q704, Q705, Q706, Q709
NG
Check U402, U401
Check I
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Envision L37W431
2
C communication