Car Stereos: fujitsu ten cd am/fm receiver, cassette receiver, stereo unit

Question
I just bought a 1994 motorhome with no manuals for it. It has a am/fm cassette receiver in the dash and a ten deck cd unit mounted above the windshield. The stereo unit plays and I have been playing it on the radio only. I have not tried the cd changer with it. I was listening to the radio and went to turn it off and I guess my finger hit a button and now it is says cd as if it is in the cd mode now. When I go to change it back to the radio the read out shows the radio dial for a few seconds and then flips back to cd and I cannot get it to turn off of the cd mode and back into the radio and I can't seem to shut it off. The cd display will not go out when I try to turn the receiver off.   There is a cd selection button on the radio receiver unit I have tried pushing it but it doesn't shut it off, I have tried pushing the band button but that doesn't change it back either.
Puzzled as to the problem. Any help is greatly appreciated. Thank you.

Answer
Wow, that is not good.  It sounds very frustrating.  The only thing I can add, is to hold down the power button for 5 seconds and see if something changes.  If not, you can try holding down another button.  Past that, there is probably some model specific trick to getting it to power down.  I would recommend contacting Fujitsu directly to try and get some insight on that model.  Hope this helps, Scott