TROUBLESHOOTING GUIDE
D-4
NO PLAYBACK PICTURE OF AV
JACK
Check loader block.
Is there a voltage
(beam current) at
TP40 AND TP42 ?
Yes
No
Is there video signal at
pin 159 of IC4001 ?
Change IC4001.
No
Yes
No
Yes
Check J8004 and peripheral
circuit.
Is there a signal at pin 9
10,11,12 of IC2601?
Check IC2601 and
peripheral circuit.