Need some guidance on a Dynamo Air Hockey

MTPPC

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I've got this board that's acting up. It's reading stuck switch, and I'm pretty sure someone touched the coin switch with static build-up in the carpeted game room. Anyway, having trouble finding documents because I don't even know the generation of version of the game.

WTIM, please help me determine the game version, find the schematic of the actual board (I have the wiring diagram since they are all the same), and get this game back running.

Thanks.
 

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Had some good help from Mike @ valley-Dynamo. The posted version is 5.1. The schematic is attached!
 

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  • MPVer5_1.jpg
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