AOC 1619Swa - Page 34

15.6" LCD Color Monitor AOC 1619Swa
34
No picture (LED orange)
No picture
The button if under control
Replace the key button
Measure C423 (+) =1.8V
U404 PIN2=3.3V
Replace U401
X401 oscillate waveform is normal
Check CN404 or replace Q409,
Q410, and U404
OK
OK
OK
OK
NG
NG
Check HS/VS from CN101 is normal
Replace X401
Check Correspondent component
NG
NG
Measures U402, U403 are normal
OK
NG
Replace U402, U403