AOC 2230FH - Troubleshooting: White Screen

22" LCD Color Monitor AOC 2230FH
40
White Screen
White screen
Measure Q106 base
is high level?
X401 oscillate
waveform is normal
Check Q107 is broken or
CN404 solder?
Check Correspondent
component.
Replace PANEL
Check Correspondent
component.
Replace U401
OK
OK
OK
Replace X401
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal