Lenovo D170 Wide Service Manual page 33

17" LCD Color Monitor
(3) White screen
Check Q602, Q601 is broken
or CN601 solder?
Check Correspondent
component.
White screen
Measure Q602 base
is low level?
OK
NG
OK
Replace Panel
X401 oscillate
NG
waveform is normal
NG
OK
Check U401
NG
OK
Check reset circuit of
U501 is normal
NG
OK
Replace U501
33
Lenovo D170 Wide
Replace X401
Replace U401
Check Correspondent
component.