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Noisy capstan which runs continously

Bought the deck used plays/ff/rew fine but as soon as you turn the power on the capstan? (spindle above the pinch wheel) spins continuosly even if the play button has not been pressed. It also makes a noise when turning but this resolves when playing a tape. Is this normal and if so what can I do to quiet the capstan.

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Re: noisy capstan which runs continously

Most tape decks are designed so that the spindle will run when powered on. when you press play or record, the pinch roller elevates the tape to the spindle, tape starts to travel.

noise is basically from the mechanism, or deteriorated in time as yours is an used one. if you are lucky to find some good pinch roller rubbers of same diameter, replace them.


Posted on Jan 25, 2008

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Works fine in FF and Rew but push play and the pinch roller closes and the tape moves to the heads but the

I do not know the model and many models have a different drive but from the first guess I would say the Capstan belt is either stretched, broken or liquified. You need a new belt.
I could be more helpful with a brand and model number.

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Tape not turning. How to fix

There are several things in a tape deck that move when it is playing or recording. There are wheels on the spindles that take up the tape and those wheels are run by rubber belts. The belts get old, break or stretch. The other thing is the capstan. The capstan is a pinch roller that presses against a metal post. That post is the drive motor for the tape. The capstan roller can be worn or cracked, the motor might also not be working,

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My Nakamishi Cassette Deck 2 is eating tape. It switches off when it does, but how can I fix this? From the look of it this cassette deck has the same cassette drive as the DR-8. Is that correct?

It could be the take up spindle does not have enough torque causing the tape to bunch up after the capstan. If you open up the unit you will notice ether belts or rollers for the tape drive. If it has belts you can replace the belt after cleaning the pulleys. If it has rollers you may be able to clean them with a rubber cleaner (not alcohol which will dry the rubber and cause glazing). Make sure the capstan and the pinch roller is clean using a rubber revitalizing cleaner on the pinch roller. "Goof off" from a hardware store is great for the capstan if it has a lot of metal oxide on it.

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FF and Rewind are functions of the reels, not the capstans. If the reels fail to rotate in response to capstan-driven tape motion the unit will assume a broken tape or end of tape. I think you have a mechanical reel drive system failure. Take it to a shop for evaluation and correction.

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1 Answer


FIRST TRY FAST FORWARD AND THEN REWIND. Allow it to ff and rew right to the end of the tape. on the tape. do this a couple of times. this may cure it as it sounds like the tapes are getting an imbalanced tension. If you still haver the problem, dip a cotton bud in alcohol and clean (carefully) the pinch wheel (the rubber bit that drives the tape through) and the capstan (the metal bit the rubber wheel presses against).

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JVC KD-85 Cassette Deck Stops in Seconds in play, REW., & FF


The deck will need new belts and idler drives cleaned and serviced, and perhaps some idler tyres replaced. You can get a belt kit from these guys. replacing them is not such a difficult job if you have some mechanical aptitude. Just take it slowly, and focus on getting the transport out of the unit.

I am more than happy to answer any other questions you may have aboutit, please get back to me here, or use the ASK function to go straightto me :) If you are still unsure, have problems, or we need to look atthe situation more deeply, then before you give a rating for thisadvice, hit the ASK buttonThanks for using FixYa, If you consider the advice I have given you assound, a FixYa rating is a great reward for my efforts to help you.Cheers.


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Kenwood Dual Cassette deck KX-97CW runs fast

Sometimes this is due to the tape not being pinched between the capstan and the rubber roller.

Make sure there is no slack in the tape when you put it in the deck. See if you can observe the tape going down over the capstan on the correct side.

If this isn't the problem, then the mechanism that engages the capstan roller may not to be working. In most cases, the rubber roller is mounted on the same mechanism that moves the record-play head against the tape. If this mechanism isn't moving, that would cause the problems you describe.

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yes this is normal. the deck utilises what is called a rolling transport and the motor runs continiously to allow for mechanical cam engaged functions to work.

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it has probably thrown the capstan belt and will require a new belt fitted. the transport relies on capstan rotation to engage play. a separate reel motor operates ff/rew and takeup funtions

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Just bought a unit from a thrift store. Found same problem; FF & RW OK, but play engages then stops. Also noticed buzzing noise when power turned on. Opened unit, found broken capstan drive belt. FF & RW driven from different motor. Buzz was drive motor running freely with no load - when power is on, capstan is driven all the time for fast play/record start. Replaced with rubber band, and it works --- now looking for replacement belt.

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