Philips 190V9FB/97(1) Service Manual page 42

42 HUDSON 9
(2). No Picture
No picture
The button if
under control
OK
Measure U404 PIN2=3.3V
Q409 V
OK
X401 oscillate
waveform is normal
OK
Check HS VS from
Replace U401
CN101 is normal
OK
Replace U401
Great user manuals database on
NG
Check reset circuit of
U401 is normal
=1.8V
collector
NG
Check U404, Q409 and Q410
NG
NG
UserManuals.info
X401 oscillate
waveform is normal
OK
OK
Replace U401
Replace X401
Check Correspondent
component
NG
Replace X401
NG
Check Correspondent
component