AOC L42W665 Service Manual page 25

42'' LCD TV
3. Abnormal display
Check the source
OK
Check signal filter circuit
OK
OK
Check U401
NG
Reset source
NG
Replace the filter or inductance
TV signal
NTSC, AV,
Component, PC signal
HDMI signal
NG
Replace U401
Check TV system setup
OK
Check TU701
OK
Check U701
NG
Check U108
Check U107
Check U414, U415,
U914
25
AOC L42W665
NG
Replace TU701
NG
Replace U701
Replace U108
NG
Replace U107
NG
Replace U414, U415,
U914