AOC 931SW series Service Manual page 28

Service Manual
No picture (LED orange)
No picture
Check signal wire
OK
Check U404 Vout=3.3V;
Q409-out=1.8V
OK
check X401 waveform
OK
Check CN101-RGB/HS/VS
OK
Check U402 out
OK
Replace U401
NG
Replace signal wire
NG
replaceU404,Q409,Q410,Q405
&around device
NG
replace X401
NG
Check Correspondent
component
NG
Updata soft data
28
AOC 931SW+
Check flow chart
for the no signal