AOC V22t - Repair Flow Chart

19
5. Repair Flow Chart
1). No power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the DC 19V is normal
Reinsert or check the
A
da
p
ter/Inverter section
X401 oscillate waveforms are normal
Check CN702, CN703, U704, U705
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
Check U704 Vout=5V
U705 Vout=1.2V