Yes, those are jumpers that impact payout odds and max hopper payout I believe. However, the game % is set by the game proms and the jumpers need to match the game, otherwise the game will error on boot.
At least that was my experience. I bought a game that threw an error and wouldn’t play. I noticed someone cut all the wire jumpers so I re-connected them and the game started right up. I looked at the manual and the jumpers were the odds.
The game proms originally came with a data sheet so you could set the game up correctly for the proms that are in it.
Chris