AOC F19L - Page 39

18.5" LCD Color Monitor AOC F19L
39
No picture (LED orange)
No picture
OK
OK
NG
NG
Measure U104 Vout=3.3V
ZD104,ZD105 Vc=1.8V
Replace U104, ZD104,ZD105
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 of
computer, or change the
cable
Replace U401
NG
OK