I few years ago, when I've started this hobby, I couldn't imagine, that I will be able to repair things like this ever.
The Muntz 4 track player in my Williams's Bonanza shooting gallery slowed down, a few weeks later completely stopped.
I made some research and realized, that in most cases, it is the driving belt, it is not enough tight.
I was extremly lucky, I find the correct belt in the first electric shop I visited.
Opened the player, there is a nice schematics inside the cover
It works fine, still have some static noise, I will have to work on that.
