AOC L42W761 Service Manual page 24

42'' LCD TV
2. Can not start (LED indicator yellow)
Check key board
OK
Check the standby voltage of main board
OK
Check U401
OK
Check U404
OK
2
Check I C communication
OK
Check the POWER_ON SIGNAL
NG
Repair the key board
NG
Replace U401
NG
Replace U404
NG
Check the components of I
NG
Replace Q906，Q907，Q913
NG
Replace U903，U906，U907，U908，U909，U911
2
C communication
24
AOC L42W761