AOC i2252VWH User Manual

Service Manual AOCi2252VW
41
No picture (LED orange)
Whitescreen
Check connector
Replace Panel
White screen
Measure Q404-base
is low level?
Check Q405=5V
Or CN403
solder?
Check around
device
Check X401 waveform
Check U403/U402
Check flow chart
For the white screen
Replace X401
Check around
device
Updata soft
Replace U402/U403/U401
NG
NG
NG
NG
OK
O
K
OK
OK
Check flow chart
for the no signal
No picture
Check signal wire
Check U404 Vout=3.3V;
Q409-out=1.8V
Replace signal wire
check X401 waveform
replaceU404,Q409,Q410,Q405
&around device
replace X401
Check CN101-RGB/HS/VS
Check U402/U403 out
Check Correspondent
component
OK
NG
NG
NG
NG
OK
OK
OK
Replace U401
Updata soft data
OK
NG

AOC i2252VWH Specifications

General

Brand	AOC
Model	i2252VWH
Category	Monitor
Language	English