JVC HR-XVC20US Service Manual page 54

NO PLAYBACK PICTURE
OF AV JACK
Is there VIDEO signal
at pin 170 of IC4001 ?
No
Is the waveform at pins
19~23 of IC4001 ?
Yes
Change IC4001.
NO PLAYBACK PICTURE OF
S-VIDEO JACK
Is there Y signal at
pin 172 of IC4001 ?
No
Is there VIDEO signal
at pin 170 of IC4001 ?
Yes
Change IC4001.
1-50
TROUBLESHOOTING GUIDE
Yes
No
Yes
No
Check IC8005 and peripheral
circuit.
Check IC2001 and peripheral
circuit.
Check J8006 and peripheral
circuit.
REFER TO "NO PLAYBACK
PICTURE OF AV JACK ".