Help with adding a credit button to jamma cab

[scottydoesntknow]

Hi all I know it's not pinball related but I know a few of you have jamma cabs, I just fitted a game box, and now my coin Mec has stopped working, annoyingly my cab has no credit button so need to identify which wires to connect to add credits, hope some one can help I have added pics of coin Mec and board thanks in advance scott

 

[mark9]

Can't you just trace the wires back to the Jamma connector - pin 16 or T is coin switch - connect to ground (pins 1,2,27,28) will give one credit pulse?

http://www.jammaboards.com/jcenter_jamma_pinout.html

 

[scottydoesntknow]

Hi all sorted thanks mark9 I kind of did what you said, let's just say had a bit of smoke at one point on the coin door board! All sorted and working now, thanks again scott

 

[mark9]

Ouch! sorry should have told you to unplug the credit board first!

 

[scottydoesntknow]

Ouch! sorry should have told you to unplug the credit board first!

It was me being silly just trying each wire till I got a credit added! After that smoked I took that board out, then it was much easier to solve the wire problem, thanks again your advice was great