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a couple questions about ground wiring on the ipac4
struby:
but as long as a black ground wire makes it's way to every button somehow, i'm good right?
Tiger-Heli:
Right, er . . .
Also, P1 and P2 Ground are electrically the same on the I-PAC/2 - the two terminals are just for convenience - you can wire to only one of them, loop from the P1 Gnd and back to the P1Gnd, or loop from the P1Gnd and back to the P2Gnd, doesn't matter. . .
ahofle:
If you don't want to connect every single ground around to every single button, you can also get a barrier strip and bridge from radio shack and run several grounds to it (and then run one ground from the barrier strip to your encoder):
barrier strip and bridge
struby:
ah so confused, i think i'm going to end up taking the one ground terminal loopless to half the buttons like in the pictures with hand painted wires, and use the other terminal for the other buttons, on a side question, is the player order of 4p cp 4p 1p 2p 3p? or 3p1p2p4p or what?
Tiger-Heli:
More often than not
3P 1P 2P 4P
but it depends on the game.
Most dedicated 4P machines used
1P 2P 3P 4P,
but this would be bad for MK.
You could also always map the controls in MAME to the 2nd stick was P1 for 2-player games and the 1st stick was P1 for 4-player games.
In short, it's up to you !!!!