White Screen on my Off Road Arcade Game. Please Help :-)

Ok I will try that in the next few days. If that doesn't solve it do you have any other ideas of what it may be?
It is very clean inside and I doubt that's it
 
take a pic of the input power connector and post it. The power connectors in your photo connect the bottom board to the top board. The real damage will be on the connector thats just out of the frame of the pic.
 
this is the one I'm talking about.
 

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and you should be getting +5 and +12 on that board. +5 between black and red and +12 between black and orange. The brown wire is probably nothing (and is supposed to be nothing).
 
I don't remember those having black headers. had one at a location completely scorch the top header, the pins were purple. lol

I had no 90 degree replacements on hand either, so I had to improvise and seriously stole one of the unused headers off the opposite side of the board.

I can't remember if we changed the power supply out afterward or not. that's pretty nuts if a little screw terminal unit could do what it did.

that said, I don't think power is your issue. 80% of all games in free play arcades are sitting at about where yours was set at, about 5.6V, and those games somehow survive 14 hours a day, every day. I'm still thinking you have a ribbon cable or interconnect issue someplace.
 
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