Coin Mech Help!!

[gwood1234]

Hi,

I have just acquired a coin mech and credit board for my MAME project. When I try to connect it up the I-PAC I seem to get a continuous credit signal, in other words, the credits are flooding into the game without even inserting a coin!

Just wondered if you knew what the problem could be?  I bought it in working order from a reputable guy on ebay..  It's a Sentinel coin mech but not sure what make the credit board is..

Any advice is much appreciated!

Kind regards
Gareth

[Shape D.]

Id check to make sure your ground and hot wire aren't touching. Also theres a little lever on the side of the coin mech that moves down when a coin is inserted. Make sure thats not stuck down. If you need to check put a quarter in while watching the side of it, if nothing moves than youre thingy is stuck down.

[deadkenndys1105]

Are you sure you wired it to the opening prong and not the closed one.

[RayB]

Sounds to me like he got some ELECTRONIC coin mechs, not your standard ones.

GWOOD, you may have to give us more info (model #, pics?) and maybe a reason why you opted for electronic over the simple mechanical variety.

The IPAC is designed to receive coin input as a simple "button" switch closing. Each time it closes, that's one credit detected by whatever game MAME is running. There is no need for a "credit board", unless by credit board we are talking about an optical coin switch?

Either way, check as was suggested above, that your connection must be set up in a "normally open" way, not "normally closed".