JoeB1355
Well-known member
So this is the first I've been messing with jamma stuff I have bunch of old harnesses and control panel bits crappy boards etc from unconversions of classics. I thought I'd salvage some parts and set up a jamm game in a cabinet
I wired up the power and it works but looking at harness and manuals I have I'm not sure whats "standard" here for sound The speaker pinouts seem to be standard, but the 2 pins below on some say not connected one I had has a volume pot connected and another just says sound opt
so is there a standard? does volume pot go there? or should I just wire volume pot off the speakers and ignore the extra 2 pins so its works with many games? would a game that wanted pot have not sound if it was omitted?
looks like some ignore the test switch too.
I wired up the power and it works but looking at harness and manuals I have I'm not sure whats "standard" here for sound The speaker pinouts seem to be standard, but the 2 pins below on some say not connected one I had has a volume pot connected and another just says sound opt
so is there a standard? does volume pot go there? or should I just wire volume pot off the speakers and ignore the extra 2 pins so its works with many games? would a game that wanted pot have not sound if it was omitted?
looks like some ignore the test switch too.