AOC G2460PQU, Руководство по обслуживанию, Страница: 49 / 88

Service Manual G2460PQU
49
No picture (LED orange)
White screen
Check connector
Replace Panel
White screen
Measure Q106-base
is low level?
Check Q104=5V
Or CN404
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
OK
OK
OK
heck flow chart
for the no signal
No picture
Check signal wire
Check U103 Vout=3.3V;
U104-out=1.8V
Replace signal wire
check X401 waveform
replaceU103,U104,Q104,
&around device
replace X401
Check CN402-HS/VS
waveform
Check U402 out
Check Correspondent
component
OK
NG
NG
NG
NG
OK
OK
OK
Replace U401
Updata soft data
OK
NG