Acer P203W Service Manual page 36

2. No Picture
Measure U701 Pin2=3.3V, U702
Pin 2=1.8V
Check if X201oscillate waveforms are
normal
Check if the sync signal from
computer is output and video cable
is connected normally
No picture
OK
NG
OK
NG
OK
Replace U202
NG
Replace U701,U702
Input the sync signal of computer, or
change the cable
36
Replace X201