Lenovo Service Manual L2062bW
38
No picture (LED orange)
Check flow chart
for the no signal
No picture
Check signal wire
Check U404 Vout=3.3V;
Q410-out=1.8V
Replace signal wire
check X401 waveform
replaceU404,Q409,Q410,
around device
replace X401
Check CN101-HS/VS
waveform
Check U401 out
Check Correspondent
component
OK
NG
NG
NG
NG
OK
OK
OK
Replace U401,U403
Updata soft data
OK
NG
Check RGB/HV singal
Check singal input 75
Ω
Check U102,U103
NG
OK
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