Help: Wiring Coin Mech

[Ben Klammer]

First, let me be clear I am not using this to generate profit. I'd prolly either make it always spit the coins back out, or keep a bowl of coins next to the cabinet and empty all the coins back into it every once in a while.

Anyway, me and my dad have been working on this MAME cabinet for a while, and we got a coin mech for it. Problem is, it was a cheap knock-off that's made for 100 peso coins and the manual was written in engrish. I think I figured out how to set it up, but I need to know how to wire it to, say, an I-PAC. Here's what it says about parts:

 

3-Way Micro Switch - Distinguish accuracy degree:accurate, normal and low

4-Pin-Plug - DC12V, COIN, GNG, COUMTER

2-Way Micro Switch - Distinguish N.O (normally open) and N.C (normally closed)

3-Way Micro Switch - Distinguish signal transmission speed of coins: fast, medium and Jow

Micro Switch - SET button

...and some other mechanical parts.

 

So, my best guess is that I'd want to use coin and GNG, which I'd assume is ground. Thing is, that's the same ground to go with the 12v in. I don't really want to risk breaking anything with experimentation. And what would counter be? No where else on the sheet does it go further into detail. That set button has to do with set-up, which I've figured out. Just to get it used to what coins it's looking for; I've calibrated it to Canadian quarters, and it seems fairly good at rejecting other coins.