Good Day All.

I don't know if there is a cure for my problem, but I'll ask anyway. I have a Denon DP 3000 that is no longer working. I'm assuming it is late '70s/early '80's so it was bound to break down sooner or later. Anyway, the problem is that even thought the platter still spins, it only spins at one speed.....fast. Not 33 1/3, not 78, but as fast as it wants. It has push buttons for speeds, but like I said, it only spins full-out. Is there any way to fix this? Is it even worth trying? I have since moved upward and onward as far as turntables go, but if I could get if fixed I would pass it on to my 12 year old nephew who loves music (and playing the bass). Any hobby that keeps him off the streets.....
Anyway, just hoping one of you fine members may have a lot more experience and answers than I do. It is a direct-drive 'table, that up until the whole spinning out of control issue, worked just fine.
Also, it has a MAS (Music and Sound out of Philedelphia I think) tonearm that I' wondering about. Anyone ever hear of them? I haven't been able to find any reviews or information other than the name of the company on the tonearm box.
Any little bit of information will be greatly appreciated. And remember, a 12 year old possible audiophile prospects future is on the line here!

Thanks,

john a.