CPS Digital interface install on a CPS3 – need help!

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  • #45712
    mathewbeall
    Participant

    Hi Folks,

    I got this installed on my CPS3 about a week ago – and when I first fired everything up, I had perfect video – but for some reason, no audio at all.

    Since I have been troubleshooting this – the problem has gone from kind of working to not at all, and I just retried soldering everyhing from scratch and got the same behaviour.

    If C2 and HS are connected – the game won’t boot and nothing comes out the JAMMA edge (no signal lock from my OSSC).

    If I disconnect only these 2 wires, then everything boots up like normal and I get video/audio like expected out the JAMMA edge.

    I also noticed that the HS and C2 pad *appear* to have continuity to GND, even with nothing plugged in, but am not sure if that is expected behaviour.

    Any help would be appreciated!

    Thanks,

    Matt

    #45808
    BuckoA51
    Keymaster

    Can you link to some photos of your installation?

    #45814
    mathewbeall
    Participant

    Hi BuckoA51,

    I posted over here and have some pictures.

    https://www.arcade-projects.com/threads/cps3-digital-av-installation-troubleshooting.16698/

    Since then – after talking to marqs i replaced U9 and U16 (HS and C2 shouldn’t be going to GND). After that change, the system would boot up – but still no HDMI out on the board, so I am guessing I somehow messed up or blew some chips out. I have since ordered a new board and will try again with a new board.

    Matt

    #46011
    BuckoA51
    Keymaster

    Please let us know how you get on.

    #46012
    mathewbeall
    Participant

    The new board worked perfectly – I am guessing that somehow i managed to blow or mess up the board I was originally using. Everything is good now! My wallet is just a little thinner due to my mistake!

    Matt

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