Lenovo L193 Wide Service Manual page 29

19" LCD Color Monitor
No picture (LED orange)
No picture
The button if
under control
OK
Measure U701 PIN2=3.3V
U702 PIN2 =1.8V
OK
X201 oscillate
waveform is normal
OK
Check HS/VS from CN101 is normal
OK
Replace U401
NG
NG
Check CN401, U701, U702,
NG
NG
X201 oscillate
waveform is normal
OK
Check reset circuit of
U401 is normal
OK
Replace U401
Replace X201
Check Correspondent
component
29
Lenovo L193 Wide
NG
Replace X201
NG
Check Correspondent
component