TROUBLESHOOTING GUIDE
1-37
YES
YES
NO
NO
PLAYBACK PICTURE IS NOISY
(EVEN AFTER CLEANING HEADS)
Is noisy a wave of video
signal at pin 26 of IC101?
Is noisy a wave of video signal
of EMITTER of Q8004
Check J8001.
Check Q8004.
Check CYLINDER.
Check IC3001.
Check the DECK BLOCK.
YES
YES
NO
NO
AT PLAYBACK AND RECORDING,
CYLINDER MOTOR UNLOAD
Is the voltage at pin 8 of
CP3001 about DC12.6V?
Check IC502.
In playback,is at pin 12 of
CP3001 about DC2.6V?