Lenovo L2062W Service Manual page 39

Lenovo Service Manual
White screen
White screen
Measure Q404-base
is low level?
OK
Check Q405=5V
Or CN403 solder?
OK
Check connector
Replace Panel
NG
NG
Check around
device
Check X401 waveform
OK
Check U401/U501
OK
Updata soft
Replace U401/U501
39
Check flow chart
For the white screen
NG
Replace X401
NG
Check around
device
L2062W