I had a Nascar do the same thing. Theres a separate power suppy board in the backbox that had Bad solder joints. With the game on push in, up, down and sideways on the plugs going to this board and see if the display comes on with game graphics. My nascar would show boot screen then nothing. I started wiggling wires and it came on. It should look close to this one. It will be in backbox and feeds display.
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