AOC 2230FH Service Manual page 40

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