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Midway Arcade Power Convert 120v to 220v back to 120v - Need help
BrokenBuckets:
I'm certainly not new to playing arcade games but this is my first one. Recently purchased a Crusi'n World arcade by Midway. Machine was purchased in Germany by someone in the Air Force. They moved back to the states and brought it with them. Machine was converted to 220v since it was in Germany. Now I want to convert it back to 120v.
The manual says I have to change the switch on the PS - No problem, says I need to change the Ballast - also not an issue or important right now. It says I need to the Transformer - This is where I'm a bit confused.
From ready everything relevant I could find here it looks like there are 2 transformers in the machine, 1 is already at 120v (first Pic) but the other I have no clue on, appears to be for just the monitor, No part #'s or labels on it. Has some handwriting on it. My question is do I need to replace it or rewire it for the proper output voltage. Any help is appreciated.
DaOld Man:
Not sure about the first photo. Is the black/white wire going to the power entry?
The second pic looks like a step up transformer.
Is the the two wires going to the power entry? If so it is possibly knocking the 220 down to 120 for the cab.
If this is the case, you can probably just unhook this transformer and hook black to black and white to white, because the white wires are hooked on same terminal on transformer tells me that this transformer is not being used as an isolation transformer, but it appears to be a "buck" transformer.
Trace out the wires and see where they go.
Also on the first one, can you see behind it? (maybe use a mirror) Can you see any markings on that side.
Also, check behind the second one, see if anything connects back there.
Could the first transformer be the ballast? If not it could be the isolation transformer for the monitor. If this is the case, it is probably coming off the 120 volt side of the second transformer, if so you probably dont need to do anything to that one.
BrokenBuckets:
Yes the black/white come from power on the first transformer. This is the only transformer shown in the wiring diagram. I'll look at the back of it tonight when i get off work. There are no wires on the back of the second "buck" transformer.
The first one should not be the ballast since that would be up top with the lights and isn't currently connected.
If I'm correct you're input may have helped me figure this out so tell me if I'm right.
If the wires on the second "buck" transformer come from the first iso transformer and the voltage is 120v I should just remove the second "buck" transformer and just connect the white/white and black/black.
Makes it sound to "simple" but would make it really easy for Midway to convert them for overseas use.
Also here are some other pics I have showing more of the overall wiring.
DaOld Man:
If the black and white wires on the 220 connections go to the power entry, probably through a switch and maybe a fuse, then I think I would cut the two black wires from the second transformer and tie them together. Removing the transformer is not necessary, but it might reduce the weight of the cabinet by a few pounds. But before removing it I would try disconnecting the two blacks and connecting them together.
Someone on here might need that transformer if you dont, so be careful not to damage it, the insulation on those can be brittle, as you can tell in the pic on the first one. I would cut the wires leaving about an inch or so on the transformer.
That first transformer is probably an isolation for the monitor, I would bet that its ok to leave it as is.
(Im referring to fist and second as to the order of pics in your first post).
DaOld Man:
BTW, welcome to the forum. It would be nice if you post some pics of your cab, we are all about cabs on here. :cheers: