32
″
LCD TV VA320E
26
(B) U401 MT5380L work
4. Abnormal display
NG
Check the source
Reset source
OK
Check IO signal filter circuit
NG
Replace the filter or inductance
Check HDMI U501 and HDMI signal
NG
Replace around component
TV signal
NG
Check Tuner power and TV system
setup
NG
Replace panel
Check panel
NG
Check the source
Reset source
OK
Check LVDS cable
NG
Re-plug in LVDS cable
OK
Check “+12V” panel power Q703, FB701,
FB703
NG
Replace Q703, FB701, FB703
OK
Check BL_ON signal CN701 Pin 1
NG
Replace main board
NG
Replace panel
Check panel
OK
