Acer X173 - Page 35

35
2. No Picture
No picture
Measure U201 PIN2=3.3V
Replace U201
Check if X401oscillate waveforms are
normal
Replace X401
Check if the sync signal from
computer is output and video cable
is connected normally
Input the sync signal of computer, or
change the cable
Re
p
lace U401, U501
NG
OK
NG
OK
OK
NG