Hyundai HLCD-A20W4 Service Manual page 22

20" LCD TV
4. Abnormal Display
AV, S-video signal
component PC signal
OK
Repair each relative circuit
Abnormal display
Check the source
OK
Check signal filter circuit
OK
NG
Check input signal
OK
Check LVDS cable
OK
NG
Check panel
22
NG
Reset source
NG
Replace the filter or inductance
OK
NG
RF signal
NG
Replace LVDS cable
Replace panel
Hyundai HLCD-A20W4
Check TV system setup
OK
Check TU100
OK
Replace TU100