1-52
TROUBLESHOOTING GUIDE
NO PLAYBACK PICTURE
OF AV JACK
Check loader block.
Yes
No
No
Yes
Check CP2601
and peripheral circuit.
Check IC2601
and peripheral circuit.
No
Yes
Check IC8005
and peripheral circuit.
No
Yes
Change IC4001.
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?
NO PLAYBACK PICTURE OF
S-VIDEO JACK
Is there Y signal at
pin 161 of IC4001 ?
No
Yes
REFER TO "NO PLAYBACK
PICTURE OF AV JACK ".
Yes
No
Check J8013 and peripheral
circuit.
Is there VIDEO signal
at pin 162 of IC4001 ?
Change IC4001.