first attempt. can some experts please help? button connection help needed

[dtruitt]

Ok guys. So I'm working on a zizzle pirates of the caribbean pinball machine and I'm trying to swap the terrible buttons with actual pinball machine buttons. Problem is,

On my new buttons I have 2 side by side metal post to connect wires too, and then there is one stand alone wire more towards the bottom.

The wiring in the machine has a black and white. Black being the ground I'm assuming. I'm trying to figure out how do I make this work?

Any help would be great.

[wemr97dl]

It probably a NO(normally Open), NC(normally Closed) and a ground.
 For some reason I can't see your pics but a multi-meter would help to test, do a simple continuity closed circuit is NC open is NO when you press the button it should change state , I would think you need to use the NO side. Just assuming the one by itself is probably ground without seeing the pics.

[cj138]

Yea, you probably want to wire the black to ground (the one on it's own) and the other wire to the post closest to the ground.

[JDFan]

Yea, you probably want to wire the black to ground (the one on it's own) and the other wire to the post closest to the ground.

And after doing this if the button seems to be stuck (as in always pressed except when you actually press it ) then switch the 2nd wire -- The ground wire is the one by itself and the other 2 are 2 types of connection NO means normally open so the connection is open until you press the button which closes the circuit while NC is normally closed so that connection is always closed until you press the button which opens the circuit - so depending on the type of connection your setup needs you use one of those 2 connections and the button press either opens or closes the circuit. So if you connect the wrong one the button will always seem to be pressed rather than only completing the circuit when pressed.  ( So if you hook it up to the wrong one it will not hurt anything but the button will act as if it is always pressed)