Toshiba SD-25VLSR Service Manual page 86

NO PLAYBACK PICTURE
OF AV JACK
Is there a voltage
(beam current) at
TP40 and TP42?
No
Is there a signal at pin
9,10,11 and 12 of
IC2601?
NO
Is there video signal at
pin 159 of IC4001?
No
Change IC4001.
TROUBLESHOOTING GUIDE
Yes
Yes
Yes
E-30
Check loader block.
Check CP2601
and peripheral circuit.
Check IC8001, IC8002
and peripheral circuit.