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TROUBLESHOOTING GUIDE
RECORDING MECHANISM
WORKS, BUT NO VIDEO
RECORDED FROM INPUT
JACK OR TUNER
Does VIDEO signal
appear at pins 34,
36 or 38 of IC4001 ?
Yes
No
Check the circuit from VIDEO input
jack to IC4001 and from Tuner Pack
to IC4001.
Yes
No
Is there VIDEO signal
at pin 20 of IC4001 ?
Replace IC4001.
Yes
No
Is the voltage at pin 41 of
IC4001 about 2.6V ?
Replace IC1001.
Yes
No
Does VIDEO signal appear
at pin 21 of IC4001 ?
Check the peripheral circuit of Q4009.
Check CYLINDER UNIT and IC4001.
E-17