Operating instructions

15" LCD Color Monitor AOC 519Sw
30
White Screen
White screen
Measure R604 base
is high level?
X401 oscillate
waveform is normal
Check Q601, Q602 are
broken or CN601 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