Philips 220VW9FB/97 Service Manual page 45

(3). White screen
Check Q404, Q405 is broken
or CN403 solder?
Check Correspondent
component.
White screen
Measure Q404 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
NG
Replace X401
NG
Check Correspondent
component.