[Gogar]

The symptoms are: the machine does not work and, when plugged in this varistor got hot and crispy.

So bare minimum I need to replace it and I have a pipe dream that I'll replace it and the machine will work.

Of course the likely outcome is that the new varistor will become black and crispy as well.

Worst case is I can buy a new board for $100 but if I can roll the dice for $5 I'm interested.

The board has no signs of anything getting hot anywhere except for this guy.
There is a transistor next to it that has many common traces so I went ahead and ordered a fresh one of those for $3.


I got the machine for free disassembled in a garbage bag so it's mostly just passing the time for fun. If I can get it running it'll be worth couple hundred bucks.