AOC V22t - Page 20

20
2). No picture
No picture
OK
OK
NG
NG
Check CN702, CN703, U704, U705
X401 oscillate waveforms are normal
Replace X401
Check if the Hsync signal from CN106 is normal
Input the sync signal of computer,
or change the cable
Re
p
lace U401
NG
OK
Check U704 Vout=5V
U705 Vout=1.2V