Thanks, django11,
I will take the unit apart. I might be able to see something, but if I can't I'll put it on the block for any reasonable offer. Maybe it will find a happy home.
The reason the unit has low mileage is because I went to computer audio a few years ago, right after I bought the cd player. I've been using jplay, not to be confused with jriver or whatever it is called. Anyhow, this software from Europe is a HUGE improvement in sound quality over typical computer audio players, such as WMP, iTunes and JRiver. If you don't know about it, you might want to check it out. It is Windows only.
Thanks again!