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2. No picture (LED is orange)
Measure U701 PIN2=1.8V
U702 PIN2=3.3V
X401 oscillate waveforms
are normal
Check if the sync signal from
computer is output and video
cable is connected normally
No picture
OK
OK
NG
OK
Replace U401
NG
Replace U701, U702
NG
Replace X401
Input the sync signal of
computer, or change the
cable
42
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