AOC 936Swa Service Manual page 43

18.5" LCD Color Monitor
No Picture
X401 oscillate waveforms are
normal
Check if the sync signal from computer
is output and video cable is connected
normally
No picture
Measure U404 Pin2=3.3V
OK
OK
OK
NG
Replace U401
NG
Replace U404
NG
Replace X401
Input the sync signal of
computer, or change the
cable
43
AOC 936Swa