Asus VW221D Service Manual page 36

22" LCD Color Monitor
8.2 Trouble Shooting
8.2.1 Main Board
(1). No Power
No power
Press power key and look
if the picture is normal
NG
Please reinsert and make sure
the AC of 100-240 is normal
OK
Measure U702 PIN2=1.8V
Measure U701 PIN2=3.3V
OK
X201 oscillate waveforms
are normal
OK
Replace U202
ASUS VW221D&VW221DE&VW221S
NG
Reinsert or check the
Adapter/Inverter section
NG
Replace U701 or U702
NG
Replace X201
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