Asus VK222U Service Manual page 39

22" LCD Color Monitor
(3). White screen
Check Q411 and Q412 are
broken or CN407 solder?
Check Correspondent
component.
White screen
Measure Q411 base
is low level?
OK
NG
OK
Replace Panel
NG
X401 oscillate
waveform is normal
OK
Check reset circuit of
U401 is normal
OK
Replace U401
39
ASUS VK222U/S
NG
Replace X401
NG
Check Correspondent
component.