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