39
(3). White screen
White screen
Check Q404, Q405 and
CN405 solder
Check Correspondent
com
onent.
Replace Panel
Check Correspondent
component.
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 Q404 base
is low level?
