Mortal Kombat Question

[SailorLodestar]

So here's my dad's Mortal Kombat Machine. I couldn't get it to switch on and I'm not entirely sure why. I've used the on/off switch at the top of the cabinet but with no results.

Does anyone know what this switch is in the back? It says 5amps. Is it like a circuit breaker? I couldn't flip it back up.

I want to confirm whether or not the cabinet is functional.

 

[ReplicaX]

Looks like a mini circuit breaker. Does it have a marquee light that turns on or is it completely off? I'd start by checking the circuit breaker with a MM. If its ok, check for 12v, 5v, -5v, on the output of the PSU.

 

[Mitsurugi-w]

There is no power cord plugged in.