slot machines reset credits from players

On that subsequent hand, she was dealt 2 Aces and wouldn't you know it, the draw was A-A-2 for back to back jackpots. When her money arrived, they asked her to play another hand to clear the jackpot. While she was waiting, I pointed out to her that she could have just held the aces and perhaps drawn a kicker (2-4) and won even more. Since it was a triple play, it was a 800 X 3 win and a hand pay. Reminds me of a time a lady next to me was dealt 4 aces and she excitedly held all 5 cards and pressed draw. They decided that if they added a credit for me to play it off, I couldn't win, so I just put more money in and kept playing. There was a brief moment of hesitation, when I pointed out that I no longer had any credits. After being hand paid, they always ask you to play another hand while they observe, so the jackpot is no longer displayed. I have hit a jackpot in a casino, while betting the very last of my credits. But, instead of hand-paying, we're just playing for fun, so the idea is to leave the jackpot on the credit meter, so they can keep playing.

The whole point of this is to lock up the machine and play the happy music when somebody hits a jackpot, just like in the casino. So what kind of connector pins are needed to add a 22 gauge wire that connector? Are there special tools needed to insert / extract these pins? I think I have a good understanding of the other parts needed to complete the rest of the project.

It's pin 13 A on a female connector, where the I/O board gets plugged into. I was able to track down where a 2nd switch would need to be physically connected, according to the wiring diagram, thanks Tilt.

Slot machines reset credits from players