AOC Adelpia A5600D, Service Manual

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22” LCD Color Monitor Adelpia A5600D
30
(2)No Picture
No picture
The button if
under control
X401 oscillate
waveform is normal
Check U401
Replace X401
Measure U702 PIN2=3.3V
D701(-)=1.8V
；
U701 PIN2=3V
Check Correspondent
component
Replace U401
X401 oscillate
waveform is normal
Replace
U701, U702
OK
OK
OK
OK
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
Check HS/VS from
CN405 is normal
Replace X401
Check Correspondent
component
NG
NG
OK
Replace U401