Asus MW201U Service Manual page 37

20" LCD Color Monitor
(2). No Picture
X401 oscillate waveforms are normal
No picture
Measure U101 PIN2=3.3V,
U102 PIN2=3.3V
U105 PIN1=1.8V?
OK
OK
Check if the sync signal from
computer is output and video cable
OK
Replace U401
NG
Replace U101, U102 or U105
NG
Replace X401
Input the sync signal of
NG
computer, or change
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ASUS MW201U