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Slot loading cd player not ejecting discs

pauld

Member
Morning guys. I have a Numark NDX500 media player that performs fine with the exception of rejecting the disc. When pressing the eject button the mechanism makes the typical sound associated with rejecting a disc but the disc stays in the unit. I have found that the disc can be made to eject by inserting a piece of paper into the slot while pressing the eject button. Anyone have any ideas as to the cause or how to fix the issue? Thanks Paul
 
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Most eject mechanisms fail due to a old, loose or broken drive/loading belt. If you have some technical skills, attempt opening up the unit to expose the belt and replace it.
If you find that some rubber remains are on the pulleys, they will have to be cleaned thoroughly before installing the new belt. I use a Q-tip with acetone, but you must be careful not to use too much. Only use enough so it doesn't drip off the Q-tip.
 
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Morning guys. I have a Numark NDX500 media player that performs fine with the exception of rejecting the disc. When pressing the eject button the mechanism makes the typical sound associated with rejecting a disc but the disc stays in the unit. I have found that the disc can be made to eject by inserting a piece of paper into the slot while pressing the eject button. Anyone have any ideas as to the cause or how to fix the issue? Thanks Paul
I'm in agreement with eiraved. The drawer is almost always a failed belt.

I clean all the pulleys with alcohol. It dissolves rubber without dissolving the pulley

 
I clean all the pulleys with alcohol. It dissolves rubber without dissolving the pulley
Alcohol will also work, I'm just not patient enough to stick with it as it takes longer to remove the rubber. Fortunately acetone hasn't caused any damage to the pulleys of the units I've worked with, which were Sony CD players and Pioneer cassette players.
 
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last time I had problems with this on a car CD player, I also found that the roller that actually pushes the CD was dirty so even with fresh belts it didn't load and unload reliably. Wiping it with alcohol fixed the problem.

acetone is hit and miss depending on contact time and material. I definitely wouldn't use it on the long roller that moves the disc in and out since that tends to be a softer rubber that acetone tends to destroy. The pulleys are usually nylon or other similar hard-ish plastic. It will usually suffer limited exposure but don't leave it to soak.
 
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