AOC L22W631 Service Manual page 22

22'' LCD TV
4. Abnormal display
AV, S-video Comp signal
NG
Check U201
OK
NG
Check U107
OK
Check the source
OK
Check signal filter circuit
OK
Check input
signal
Replace U201
PC， Comp signal
Replace U107
Check U401
OK
check LVDS cable
OK
check panel
NG
Reset source
NG
Replace the filter or inductance
IF
signal
check TU100
Check U203,U204
NG
Replace U401
NG
replace LVDS cable
NG
replace panel
22
AOC L22W631
check TV Readjust
NG
system system
OK
NG
replace TU100
OK
NG
Replace U203 or
OK
U204