AOC 919SWA Service Manual page 31

19" LCD Color Monitor
No picture (LED orange)
Measure U404 Vout=3.3V
U405 Vout=1.8V
X401 oscillate waveforms are
normal
Check if the sync signal from
computer is output and video
cable is connected normally
Downloaded from ManualMonitor.com Manuals
No picture
NG
OK
NG
OK
NG
OK
Replace U401
Replace
U404,U405,CN404
Replace X401
Input the sync signal of
computer, or change the
cable
31
AOC 919Swa