JVC HR-XVC25US Service Manual page 56

NO PLAYBACK PICTURE
OF AV JACK
Is there a oltage
(beam current) at
TP40 and TP42?
Is there a signal at
pin 9,10,11 and 12
of IC2601?
Is there a signal at
pin 9,10,11 and 12 of
IC2601?
Is there video signal
at pin 159 of IC4001?
Change IC4001.
NO PLAYBACK PICTURE OF
S-VIDEO JACK
Is there Y signal at
pin 161 of IC4001 ?
Is there VIDEO signal
at pin 162 of IC4001 ?
Change IC4001.
1-52
TROUBLESHOOTING GUIDE
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
Check loader block.
Check CP2601
and peripheral circuit.
Check IC2601
and peripheral circuit.
Check IC8005
and peripheral circuit.
Check J8013 and peripheral
circuit.
REFER TO "NO PLAYBACK
PICTURE OF AV JACK ".