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Jamma Harness Modification

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  • Jamma Harness Modification

    I have one of these Jamma wiring harness to rewire my cabinet with

    The harness has everything I need on it, but only one of the +5V connections has wiring to it, the Grounds on pins 27, 28, e & f aren't connected, and Video ground (pin 14) has no wiring.

    Here are my options:
    1) Leave it as is, it will still work, and if I need to connect video ground I can just connect video ground to ground where necessary.

    2) Connect wiring for all the ground and +5V connections. To do this I will need to remove a couple of edge connector split pins that don't have wiring in them, and insert a few more split pins. Does anybody know how to get the pins out, or will this do the trick?

    Also I will need to get some split pins for the new wiring, any ideas on supplier/ part numbers?

    I prefer option 2 because it gives me peace of mind because all the available voltage & ground paths are connected. However, if I am wasting my time worrying and should just use the harness as is, please let me know! Any thoughts???

  • #2
    I havent come across a jamma board that requried pin 14 to be wired, just leave it common ground.


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