AOC V22t User Manual

21
3). White screen
4). Key Board
OSD is unstable or not working
Is Key Pad Board connecting normally?
Connect Key Pad
Is Button Switch normally?
Replace Button Switch
Y
Is Key Pad Board Normally?
Replace Key Pad Board
Check Main Board
N
N
Y
Y
N
White screen
Check Q405, Q406 and
CN402 solder
Check Correspondent
com
p
onent.
Replace Panel
Check Correspondent
component.
Replace U401
OK
OK
Replace X401
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
OK
X401 oscillate
waveform is normal
Measure Q405 base
is high level?

AOC V22t Specifications

General

Brand	AOC
Model	V22t
Category	Monitor
Language	English