Defender coin door questions.

YeastLord

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Issue #1.
OK, I finally figured out that BOTH of the coin switches in the door are bad. I'm able to jump the wires to successfully get credits. This didn't work until I tool a bit of sand paper and cleaned up the connectors to get a decent connection. This was the source of vast frustration as I traced all the wires and everything look OK.
There are some wires missing from the coin mechs and a few things I'm unsure about. See attached pictures. If you can help that would be great! Also if anyone has a high res pic of the inside of a coin door (That's complete) that would be amazing.

Issue #2.
I still can't get the diagnostics/settings to work. I did continuity tests on the harness and the wires look good. Are there any gotchas that I might not know about? Even when I boot up after pulling out the batteries and it goes to the settings screen I can't get anywhere as the buttons don't seem to register.

Thanks again for any help.
 

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Issue #1.
OK, I finally figured out that BOTH of the coin switches in the door are bad. I'm able to jump the wires to successfully get credits. This didn't work until I tool a bit of sand paper and cleaned up the connectors to get a decent connection. This was the source of vast frustration as I traced all the wires and everything look OK.
There are some wires missing from the coin mechs and a few things I'm unsure about. See attached pictures. If you can help that would be great! Also if anyone has a high res pic of the inside of a coin door (That's complete) that would be amazing.

Issue #2.
I still can't get the diagnostics/settings to work. I did continuity tests on the harness and the wires look good. Are there any gotchas that I might not know about? Even when I boot up after pulling out the batteries and it goes to the settings screen I can't get anywhere as the buttons don't seem to register.

Thanks again for any help.

The thing in the second pic is a switch that only closes when you bang the machine. Not playing well, get mad and slam the game and you lose your game and any credits. Brown wire connects to the spot you labeled "what goes here".
 
Last edited:
One more question. What is that thing I'm going to attach the brown wire to?

Thanks again!
 
I believe that is the coin lockout relay.


Coin lockout coils are a holdover from the electromechanical pinball days. On one of those pinballs the coils served 4 purposes:

1. To reject a players coins if inserted when the machine was turned off. In the old days there were no "On-off" power switches installed on the machines--you had to unplug the machine to turn it off. When plugged back in nothing would light up. You had to put coins in it to turn on the lights again.. a sort of Catch 22 situation.

2. To prevent getting free or extra credits if a coin was inserted while the score motor was in the middle of a cycle.

3. To prevent getting free credits if you kicked/banged the hell out of the coin door in an attempt to get free credits from vibrating the coin switches. If you banged the coin door hard enough, an "anti-slam" weighted switch would open thus killing power to the lockout coil and the coin relay.

4. In the event the "coils" fuse blew the lockout coil would block coins thus the location owner would call for repairs.

I strongly feel that lockout coils should be brought back. With expensive machines like "Let's Go Jungle" that cost alot to play and have a very long power up sequence due to the fact it uses a computer. If a person puts in coins while it's still powering up they lose their money.
 
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