Wiring up a coin mech

[?]

I have almost completed my first cabinet and now having got it all up and running, wish to connect the existing coin mech to the pc so that mame will register credits when the coins are deposited.
I have a standard Jamma cabinet with the arcade monitor connected to the pc via a fingerboard. My controllers are wired to a keyboard pcb which connects directly to the pc's ps2 keyboard port and works just fine.
I was planning on connecting the coin mech as below, with the coin button wires connected to the fingerboard and a 12v power supply going into the fingerboard to power the coin mech.

Can anybody tell me if this will work or would it just blow the keyboard pcb, and either way what is the best method for doing this?
Thanks for any help in advance.

[RayB]

Honestly, I would sell that expensive electronic coin acceptor and just install a simple mechnical coin mech, like most video games use. (Why an electric one? Are you planning on accepting dollars??)

[?]

The only reason i am planning on using this one is because it was in the cabinet when i bought it, so figured if i can connect it up i dont have to worry about locating another type.
If i was to change it for a mechanical one though, would it distinguish between different denominations of coin or will it only take one specific type of coin only?. I live in the U.K. and the coin mech i have will accept 10p, 20p, 50p and

[Franco]

Hiya mate.

I dont think our cross atlantic buddies apprieciate the authenticity to us of a mech that accepts different coins.

[RayB]

My only concern for you would be to ensure that the coin acceptor does not SEND OUT 12volts on the credit line. To go back to your original question, you could probably tap into the 12 volts to power the thing (assuming 12 volts is what it needs), but game boards, JPAC, or whatever you're using for input expects a 5volt pulse from a credit switch. You can understand that if your acceptor spits out 12 volts, you're going to damage something.

[?]

Nice one Franco, that link looks like it might help with a few points
Still need to find

[RayB]

Huh? The credit signal should be going to your jamma fingerboard, not the keyboard.

[?]

Ray, it does, and then from there it goes to the keyboard pcb to generate a keypress, so therefore needs to be the correct volts and amps so as not to kill the keyboard, but the fingerboard just being a medium to solder to will not reduce or change the power rating so therefore the circuit is surely needed to drop the power to a suitable range?
I totally admit i know little to nothing about this side of things and that is why i am seeking advice, but from my understanding what i propose should work just fine providing the correct volatage and ampage is sent to the keyboard either via the fingerboard or direct from the credit control unit.