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19" LCD Color Monitor
No picture (LED orange)
No picture
Measure U404 Vout=3.3V
U405 Vout=1.8V
NG
OK
X401 oscillate waveforms are normal
NG
OK
Check if the sync signal from computer is output and video cable is connected normally
NG
OK
Replace U401
AOC 919Swa
Replace
U404,U405,CN404
Replace X401
Input the sync signal of computer, or change the cable
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