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Video Game Repair/fuse blowing when machine switched on


I am working on an old Ms Pac-man, and when the machine is turned on the f2 fuse (250v 2a) blows.  All you get is a clicking sound and nothing else when the switch is turned on.  One of the big caps(?) looks like it might have a little dome on top and junk on the bottom where the wires connect.  any idea if this can be cause and what what size these are?

Hi George,

I would try a couple of things to narrow down what is causing F2 to blow.

With the power off, replace the fuse and disconnect each of these, one at a time, and power the machine on. If the fuse doesn't blow, you've found the problem.

1) Monitor
2) Game board
3) Marquee light

It's unlikely that one of the filter caps is causing this- the only thing you'll really notice is if the two caps on the top of the Ms. Pac board go bad is a rolling wave through the monitor. Google "hum bar" to find replacement instructions.

Hope this helps!

Video Game Repair

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Brian Penzone


I can answer questions regarding coin-operated arcade game questions down to the logic board. Error codes, erratic operation, dead boards, I can help with them all. I can help with video monitors on a very limited and basic level only.


I have spent nearly 20 years as an avid arcade collector, and spent nearly 10 of those years as the lead tech for a large arcade operator, doing work for manufacturers and other coin-operated amusement companies around the globe. I maintain a good sized collection of arcade games, as well as a large inventory of spare parts for a wide range of arcade machines.

BA from The Ohio State University, Associates from DeVry University

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