Philips 190B9CS/00 Service Manual page 46

46 HUDSON 9
(2). No Picture
No picture
The button if
under control
OK
Measure U703 PIN2=3.3V
NG
OK
X401 oscillate
waveform is normal
OK
Check HS VS from
Replace U401
CN101 is normal
OK
Replace U401
NG
Check reset circuit of
U401 is normal
Check C706 and C708
NG
Replace X401
NG
Check Correspondent
component
X401 oscillate
waveform is normal
OK
OK
Replace U401
NG
Replace X401
NG
Check Correspondent
component