The OFF-ON button is red in color when it's off, as it should be. When I push the button, the little green light does not come on. Also, internally, the CD changer makes a weird noise and seems to rotate through the various CDs, but nothing happens. Also, I can't open the CD holder to extract the CDs. Any ideas? Larry Kupper

SOURCE: Denon UD-M50 cd changer. Need help extracting drawer for home repair!

Hi KathyKate

If you are still having the same problem with your denon UD-M50 I might be able to help. I have fixed a number of them in the past and have the necessary maintenance manual and knowledge of a company that can supply spare parts. Disassembly looks very complex, especially when the problem is with the carousel but once you have an understanding of the mechanism it's not that difficult. Care should be taken when manually removing and reloading the disc trays as damage can result to the 'Teeth' alongside each. Spare trays are available. All my repairs involved the removal of the carousel mechanism in order to align the trays. I can copy the relevant sections of the manual dealing with the re-alignment which is critical but again if followed exactly you should have no trouble. If you respond with an Email address, I will be only too pleased to forward you the schematics etc.

Regards Ibbotsnm

SOURCE: I have the Denon Personal

Hi,
Your suspicions about a broken belts are probably exactly right.
Here's what you can do or attempt to do.
Make sure the machine is unplugged.
Remove the cover of the unit. You may be able to manipulate the cd changer mechanism so that you can replace the belts connected to the door mechanisms. Since I am not there and I don't know how your unit is constructed I would advise to be VERY patient and exacting while doing this.
DON'T FORCE ANYTHING. And use good lighting so you can observe how it functions.

I have replaced a lot of belts on various types of CD transports and there is a certain similarity they all have. Inevitably they all have some small belt that rotates a gear mechanism that moves the transport drawer or section in and out.
Of course you can get it serviced by a professional, who will do as I suggest. But if you are confident that you can do it. Have at it.
The only problem I can imagine is locating an electronics supply house in your area.
You may be able to get a full set of belts from Denon.
I hope this helps you.
Best Regards,
Mark