Well, firstly, thank you ever so much for your detailed reply. I have been unwell for the past few days and have not really been checking in to the Boomboxery website.
I just had another look at the recesses that you highlighted. I used my Magnalite LED flashlight to allow me to peer down the recesses or "wells". Again, I do not see likely candidates for gaining entry. (I know I MUST be missing something ). The four recesses each side behind the speakers have cross-head screws and perhaps they ARE the points of entry. However, I don't yet have the right size of screwdriver to give them a try. I will need a long driver with a narrow handle and the only one that I have right now that reaches the crews is not engaging properly with the screws and I am scared of damaging them. The two recesses you marked near the handle do not lead to screws. Of the five "lower" recesses four of them have metal features at the bottom that do not resemble screws, having neither "crosses" or "slots". The last recess DOES have a cross-head screw at the bottom but......a SINGLE screw....... There MUST be others somewhere that I am missing.
My plan at the moment is to order a Service Manual for the boom-box on a vendor site I found on ebay.
Original Manual / Copy: Original.
www.ebay.com
He or she is not available for a week or so so I shall order the Service Manual later. I shall also HAVE TO get a suitable screwdriver. Maybe the Manual will guide me to the right size.
Update: I forgot to add that when I select Cd as the function to use "Cd" is then shown on the CD LCD screen. When I insert a CD into the drive and close the lid the didplay does not change. This seems to me to signify that the box does not KNOW that I have closed the lid. To me that suggests a switch, possibly a leaf-switch (see, I am learning ), is not working correctly. It's just my ten-cent's worth.