Abnormal Display - AOC L19AS73 Service Manual

19" LCD TV

4.4 Abnormal display

AV, S-video，
Component，
HDMI ,PC Signal
OK
Check U400
Check the source
OK
Check signal filter circuit
OK
Check input
OK
OK
Check LVDS cable
OK
Check panel
NG
Reset source
NG
Replace the filter or resistance
NG
RF signal
NG
Replace LVDS cable
NG
Replace panel
23
AOC L19AS73
OK
Check TV system setup
OK
Check Tuner
OK
Replace Tuner