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Thread: MV-2F not registering 2P down

  1. #1
    Dodgeball Yakuza
    bartre's Avatar
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    MV-2F not registering 2P down

    Hey guys,

    I've got my 2 slot cmvs using the MV-2F motherboard and the neoVGA for video.
    Unfortunately, for player 2 the down direction isn't registering.
    This is on both the controller port and over the jamma edge.
    I'm not exactly sure where to start on troubleshooting this, any ideas?

    Thanks!

  2. #2
    .
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    i didn't found any information on mv-2f slot, but the chip that controls inputs on the mv-1f slot is the neo-c1 (pin61 is the p2 down input) when on late revision as the mv-1b is the NEO-SDR-T (check pin88 for continuity)

  3. #3
    Dodgeball Yakuza
    bartre's Avatar
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    Odd finding-
    Pin 2 on the controller port was testing for continuity at the down pad on the jamma edge

  4. #4
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    is it the controller port broken?

  5. #5
    Dodgeball Yakuza
    bartre's Avatar
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    Oct 2009
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    solution found -
    the continuity was broken between the controller port and the ferrite beads.
    a quick patch with kynar and she's back in business!

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