AOC 936Swa Service Manual page 42

18.5" LCD Color Monitor
715G3244 1
No Power
Press power key and look
Please reinsert and make sure
the AC of 100-240 is normal
Measure U404 Pin2=3.3V
No power
if the picture is normal
NG
OK
OK
X401 oscillate waveforms
are normal
OK
NG
Replace U401
NG
Reinsert or check the
power section
NG
Check CN404 or replace U404
OK
Replace X401
42
AOC 936Swa
NG
Check power
Replace U404
section