I bought this player back in the early 90's. Sony X111ES, audiostack
type. Worked fine for awhile but then.... The problems are kind of
weird; it will do one of these when trying to load or play a disc:

A) Open disc tray but then refuse to close.

B) Refuse to read disc's TOC.

C) Will read TOC but then refuse to play.

Usually, when any of these happens, cycling the power is the only way to
get it to go again (when it DOES play, though, it will do so w/o any
further issue). I know it's not related to any particular disc (at least
as far as the latter two issues go), since it will happen on any disc,
new or old, scratched or not. Any ideas?