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Denon UD-M50 3 CD auto changer not opening

Discussion in 'Troubleshooting and Repair' started by david, Dec 22, 2009.

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  1. david


    Dec 22, 2009
    disc tray does not open and get message "mech err". how can i fix?
    Last edited: Dec 22, 2009
  2. Resqueline


    Jul 31, 2009
    Do you hear a motor whirring as you push the eject button?
    Just open it up and have a look. Most likely you'll find a broken rubber drive belt.
    Replace it with the same thickness & diameter. You'll find them for sale all over the net.
    If you're lucky there could just be something stuck in the mechanism.
    If you're unlucky it could be a broken plastic part.
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