Lenovo L222 Wide Service Manual page 32

22" LCD Color Monitor
(3). White screen
Check Q301 and Q302 are
broken or CN301 solder?
Check Correspondent
component.
White screen
Measure Q301 base
is low level?
OK
NG
OK
Replace Panel
NG
X201 oscillate
waveform is normal
OK
Check reset circuit of
U401 is normal
OK
Replace U401
32
Lenovo L222 Wide
NG
Replace X201
NG
Check Correspondent
component.