THOMSON 32LM051B6 - 8.4 Abnormal Display

32’’ LCD TV Color Monitor Thomson 32LM051B6
29
5.4 Abnormal display
Check the source
OK
Reset source
NG
Check signal filter circuit
NG
Replace the filter or inductance
OK
NG
RF signal Check TV system setup
OK
Check Tuner
Replace Tuner
AV, SCART1/2_CVBS signal
S-video SCART2_Y/C signal
Check U3
NG
Replace U3
PC signal
Check U11
NG
Replace U11
OK
Check U21, U20
NG
Replace U20
OK