Jamma Auto up/auto down / service switch

tbullet

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I'm curious on how to wire these 2 switches from the jamma board.
There's the advance up/down labeled test switch (#15) on the board and the service switch (#14). How do I wire these up? One lead from the harness to the switch and the other side of the switch to a ground?
On my Robotron, there are 3 switches. the advance and up/down and high score reset. Can I run a single ground wire from each of these together to daisy chain the ground on them?

Thanks.
 
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