AOC Adelpia TGL2010A Service Manual page 34

20" LCD Color Monitor
No Picture (LED orange)
No picture
The button if under
control
OK
Measure Q702, Vc
out=1.8V; U702 PIN2=3.3V
OK
X401 oscillate
waveform is normal
OK
Check HS/VS from
CN405 is normal
OK
Replace U401
NG
X401 oscillate
waveform is normal
Check reset circuit of
U401 is normal
Replace U401
NG
Replace Q702, U702
NG
Replace X401
NG
Check Correspondent
component
34
NG
Replace X401
OK
Check Correspondent
NG
component
OK
Adelpia TGL2010A