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2. No picture (LED is orange)
Key is under control?
OK
X401 oscillate waveform
is normal
OK
Check if the sync signal from
computer is output and video
cable is connected normally
OK
Replace U401
All manuals and user guides at all-guides.com
No picture
NG
NG
NG
Y601 oscillate waveform
is normal
Replace U601
Replace X401
Input the sync signal of computer,
or change the cable
40
NG
Replace Y601
OK
NG
Replace U401
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