Build Your Own Arcade Controls Forum

Main => Main Forum => Topic started by: runawayabc123 on April 04, 2011, 05:53:31 pm

Title: why does my jamma harness have 2 wires off of cc (p2 button4)?
Post by: runawayabc123 on April 04, 2011, 05:53:31 pm

I got this jamma harness: http://www.jammaboards.com/store/jamma-harness/prod_146.html (http://www.jammaboards.com/store/jamma-harness/prod_146.html)

It has a white wire and a gray wire off of "cc" (player 2 fire button 4).  Does anyone know why?  It was put with the speakers and coin operation wires (some came a little zip tied together, not that I put any faith in that and double checked everything). 

Title: Re: why does my jamma harness have 2 wires off of cc (p2 button4)?
Post by: MonMotha on April 04, 2011, 06:23:13 pm

Some games have been known to use that input for a second test or service credit button.  The Neo-Geo single slot uses it (and its player 1 equivalent) for button 4.  It's not generally necessary.