LG 26LG3000 - Troubleshooting Display Problems; Abnormal Display

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4. Abnormal Display
Check the source
OK
Reset source
NG
Check signal filter circuit
NG
Replace the filter or inductance
Repair each relative circuit
RF signal
Check TV system setup
OK
Check TU201
Replace TU201
AV, S-video signal
component PC signal
OK
Check LVDS cable
Check input signal
OK
OK
OK
NG
Replace LVDS cable
OK
Check panel
Replace panel
NG
Abnormal display