Abnormal Display - AOC VA320E Service Manual

32"LCD TV
(B) U401 MT5380L work
Check the source
OK
Check LVDS cable
OK
Check "+12V" panel power Q703, FB701,
FB703
OK
Check BL_ON signal CN701 Pin 1
OK
Check panel

4. Abnormal display

Check the source
OK
Check IO signal filter circuit
Check HDMI U501 and HDMI signal
TV signal
Check panel
NG
Reset source
NG
Re-plug in LVDS cable
NG
Replace Q703, FB701, FB703
NG
Replace main board
NG
Replace panel
NG
Reset source
NG
Replace the filter or inductance
NG
Replace around component
NG
Check Tuner power and TV system
setup
NG
Replace panel
26
VA320E