Topview A2281Wd+ - Trouble Shooting

22” LCD Color Monitor Topview A2281Wd+
35
8.2 Trouble Shooting
8.2.1 Main Board
No Power
No power
Press power key and look if the
picture is normal
Please reinsert and make sure the
AC of 100V-240V is normal
Reinsert or check the
power section
Check if X401 oscillate
waveforms are normal
Check C704(+) =1.8V
U701Vout =3.3V
OK
OK
NG
NG
NG
Check CN701 or replace U701
and C704
Replace U401
Replace X401
NG
OK