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69.71.1.1
In Reply to: RE: Things the Service manual doesn't answer posted by Awe-d-o-file on May 20, 2015 at 09:51:14
Yes, back tension is normal otherwise the pulled reel would be free wheeling and cause tape spillage. There has to be some type of damping/brakes. It is normal for replays to make a sound, a click. Continuous chattering is not normal. You shouldn't fast wind or rewind an old, fragile pre-recorded tape. Any magnetic tape is fragile. Computer tape drives used to be made with vacume chambers for tape loops to keep out dust and protect tape. Rewinding and fast forwarding causes tape damage and causes the tape stack is be scrambled and subject to damage. Only play it at play speed or refrain from fast winding to find the track you like best. Moe
"...the fool doth think he is wise but the wise man knows himself to be nothing but a fool." Will Shakespeare
Follow Ups:
Moe:
I have a relay chattering that makes the tape stop and go while paying so I'll have to deal with that. It is on the servo board. The reason I ask about the back tension is that with no tape on either hub when you put it in REW/FF it looks like things are fine. Then with a tape booth FF and REW are slow.
E
T
If it's chattering, then the diode across the relay coil might be defective. Also the spring in the relay might be defective. MB
"...the fool doth think he is wise but the wise man knows himself to be nothing but a fool." Will Shakespeare
Got it. I'll check the diode(s).
E
T
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