HP 2009v

20" LCD Color Monitor HP 2009v
34
White Screen
White screen
Check Q402 is broken or
CN402 solder?
Check Correspondent
com
p
onent.
Re
p
lace Panel
Check Correspondent
com
p
onent.
Replace U401
OK
OK
Replace X401
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
OK
X401 oscillate
waveform is normal
Measure Q402 base
is low level?