Coin Counter Help

simplesi

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Donor 2011
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Edinburgh, United Kingdom
Just wondering if someone could help me fix my coin counter. I picked up an old shell of a cocktail cab (Taito Space Invaders). There was not much inside apart from the service button and the coin counter. All the harness, pcbc, etc were taken out.

I am installing a multiboard (60 in 1) with a jamma harness and wanted to link up the coin counter. I haven't a clue what's what. Any help would be greatly appreciated.

There are some pictures attached.

What does the yellow wire connect to and the bluish one? Is one connected to the Counter 1 on Pin 8 on the harness and the other the 5V? How does the board know that you have put a coin in? It's all magic to me.

Do I need a diode? If so where and which one. I am poor at understanding electronics.
 

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Most of your standard coin counters required a 12V connection and a ground connection.
I have no idea what voltage the one you have would need, but most of you standard Atari/Konami/Midway arcades used a 12V coin counter.
 
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