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TROUBLE SHOOTING GUIDE
PLAYBACK PICTURE IS NOISY
(EVEN AFTER CLEANING HEADS)
Is noisy a wave of video
signal at pin 29 of IC101?
YES
Is noisy a wave of video
signal at pin 25 of IC8001?
NO
Check J8004.
CAPSTAN DD MOTOR NOT
ROTATING
In playback,is there voltage at
pin 2 of IC3001 12V?
YES
In playback,is there voltage at
pin 78 of IC3001 2.5V?
YES
DD MOTOR rotate now?
If not, replace it.
NO
YES
NO
NO
- 34 -
Check CYLINDER.
Check IC8001.
Check POWER BLOCK.
Change IC3001.
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