Acer AL2616Wv Manuel d'entretien - Page 35

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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