Acer AL1906

33
2. No picture (LED is orange)
No picture
OK
OK
NG
NG
Measure U701 PIN2=3.3V
U702 PIN2=3.3V
Replace U701, U702
X401 oscillate waveforms are
normal
Replace X401
Check if the sync signal from
computer is output and video cable
is connected normally
Input the sync signal o
f
computer, or change the
cable
Replace U401
NG
OK