Test and Service buttons not working

Trashman677

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Donor 2012
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Jun 26, 2012
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Loveland, Colorado
I was wondering how the test and service buttons work? I have a few JAMMA Games and everytime I try to push the buttons nothing happens. They are wired to the JAMMA harness correctly I believe. I also checked the buttons themselfs with my meter and they are working correct. I guess my main question is what function should happen when I press them? Thanks for any help.
 
The test button should bring the game into the test/ service menu. You might have to hold the button for a couple seconds. Some games require that you hold the test button and then power on the machine which will then bring you into the test/ service menu.

The service button should give the machine credits without advancing the coin counters. It may also act as a button in the service menu.
 
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