My dad has a Sony ES (apparently audiophile series) CD player from 1985. It JUST stopped working a few weeks ago. I tore into it and it looks like the power switch has stopped making a connection, so I've ordered a new switch that will hopefully work to replace the original (which no longer has parts available).

If not, I'll just bypass the switch and put it in a remote controlled power strip so it can be turned on and off that way.