AOC L32W451B Servce Manual page 29

32'' LCD TV AOC L32W451B
5.4 Abnormal display
NG
Check the source
Reset source
OK
NG
Check signal filter circuit Replace the filter or inductance
RF signal Check TV system setup
OK
OK
NG
Replace Tuner
Check Tuner
OK
NG
Replace U3
Check U3
AV, SCART1/2_CVBS signal
S-video SCART2_Y/C signal
NG
Replace U11
PC signal Check U11
OK
NG
Check U21, U20 Replace U20
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