Newbie questions about coin doors


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Posted by tektreve on 9, 2001 at 11:07 AM:

I'm planning out my MAME project, and I'm starting to order all the parts that I'll need. I'm planning to add a working coin door to the project and have just a few simple questions that I figured some of you who installed these doors before could answer.

(FYI, I'm not going to ask about how to hook up the coin switch or the lights...that's fairly obvious and even if it wasn't, it's been covered before.)

1. Coin Return...I'm trying to understand how the "Push to Reject" mechanism works. Specifially, if I understand it correctly, a coin is inserted, it is accepted by the coin mech, it triggers the coin switch, and then falls into the coin box. When the coin switch is closed, a signal goes to the interface (I going to use an I-Pac) and then to the system. So how would a return work? I'd imagine that the coin would have to be held in the mech to allow the user to press Reject, but then when does it get accepted? I'm just a little confused on how this would work without additional "communication" between the hardware/software and the coin mech. Any info would be appreciated.

2. Hopefully, I'll be able to find a coin door with mechs on eBay at a good price. At worst, I'll probably buy one from Bob Roberts or Happs. Either way, I not 100% clear on all the parts I'll need. Please let me know if this is correct: The coin doors seem to include almost everything, but I do need to buy the coin mechs as well. If the coin door does not come with a coin box, I'll need this too. Lights and holders are separate. And the coin switch? Is this part of the door or the mech or is it another part to buy? Is there anything else sold separately? (I'd like to avoid buying 99% of the parts and then realize that I forgot to order a $2 part!)

3. First I thought I'd save some money and just use a single entry coin door with one mech. Then I thought about setting up one coin slot for quarters and one for tokens, but after reviewing this board I see that there are games that work best with 2 coin mechs. So, I'm going to use a dual entry coin door with 2 mechs. Do I understand correctly that I could get a mech that will accept both quarters and tokens (such as the Happ Metal Coin Mech p/n 42-3070-00 or the Imonex mech from Happ p/n 42-2034-00)? Will these mechs accept quarters and tokens at the same time, or are they more like the 8/4 way joysticks that you have to setup in mode you want to use them when you install them?

Thanks in advance for any advice you have...


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