AOC LM560s Service Manual page 31

15" LCD Color Monitor
No Picture (LED orange)
No picture
The button if under
control
OK
Measure U201 PIN2=2.5V
U202 PIN2=3.3V
OK
X401 oscillate
waveform is normal
OK
Check HS/VS from
CN301 is normal
OK
Replace U401
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NG
X601 oscillate
waveform is normal
Check reset circuit of
U601 is normal
Replace U601
NG
Replace U201, U202
NG
Replace X401
NG
Check Correspondent
component
31
NG
Replace X601
OK
Check Correspondent
NG
component
OK
AOC LM560s