After trying to "fix" my CD player by letting the cartridge pop up from its
box, then pushing it down again, with the result that I still got the error
message "No CD Player" when I selected CD on the control panel, I tried
another tack: I let the cartridge pop up, removed it completely, then
flipped out the individual CD holders to see if one of the CDs might have
become dislodged. Everything looked normal. When I reinserted the cartridge
and again selected CD, it played! Isn't technology wonderful? I think that
my removing the cartridge and replacing it had the same effect as hitting
the TV used to have...things got better.
Thanks for your suggestions!