Acer AL2616Wv Service Manual page 35

2. No Picture
Measure U701 PIN2=3.3V
U702 PIN2=3.3V,U705 PIN2=3.3
Check if X401,X402 oscillate
waveforms are nor
Check if the sync signal from
computer is output and video cable
is connected normally
No picture
OK
l
OK
OK
Replace U401
NG
Replace U701, U702, U705
NG
Replace
X402
Input the sync signal of
NG
computer,
cable
35
X401,
or change the