N64 quality pulsing/flicking

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  • #35590
    EatingInRetro
    Participant

    Hello
    I followed some of the settings posts for the N64 that I found in this forum and things look pretty ok but I’ve noticed while looking at any of the games it looks like the colors are pulse/wavy or refresh in areas unevenly. Is this something that is just normal or should is there something I can do to fix this?

    #35594
    lynxtosg
    Participant

    I have seen this type of issue due to many reasons. Your first step should be in narrowing down the cause.

    Questions:
    1) Does this issue happen on a different N64 console?
    2) Does this issue happen with a different power supply?
    * Check the N64 console and OSSC if possible
    3) Does this issue happen with different cables?
    * Check the N64 console and OSSC if possible
    4) If using a flash cart like an everdrive, does this issue happen using the original cart?
    5) Is your OSSC running the latest firmware?
    * If not, try upgrading.
    * If so, try downgrading.
    6) Does this issue happen on a different TV?
    7) What are your current OSSC settings (sampling, sync, and other timing options) ?

    Screen captures, your affected games, and your affected consoles would help.

    #35597
    EatingInRetro
    Participant

    Thank you for giving me some direction on what to check. As for settings I am using:
    H. Samplerate – 387
    H. synclen – 22
    H. backporch – 34
    H. active – 320
    Sampling Phase – 22 deg
    on version 0.82a

    I only have an unmodded N64 which I don’t think will help? I could use the power supply from that and test that part.
    I don’t have another scart cable, would it be worth buying another and testing? I can use a different hdmi cable.
    I don’t have any carts to test with at the moment.
    I tested it on my TV and it also showed on OBS preview.
    For capturing I will have to capture a short video.

    I’ll update once I am able to test all these steps.

    #35646
    EatingInRetro
    Participant

    Here is a video of the issue. You can really see it during the white transitions and in the blue sky while Princess Peach is talking.

    #35660
    lynxtosg
    Participant

    Unfortunately your video has been taken down. You may want to upload to google drive.

    #35670
    EatingInRetro
    Participant

    Not sure what happened to the video but once I signed back in everything was good. Could this be from the scart cable?

    #35674
    Opat
    Participant

    Do you have Tim Worthington’s board installed in your N64? It is hard to see the flickering due to the compression but I think I had the same issue (it was especially noticeable at the grass in front of the castle). I’ve built a clone of Tim’s board and I had this kind of noise until I’ve installed a 3.3V regulator instead of the direct 3.3V rail. I’ve read it can be a problem for the official release as well.

    #35675
    EatingInRetro
    Participant

    Yes that’s the board I have installed. Can you direct me on how I can install this fix? I do know how to solder.

    #35676
    EatingInRetro
    Participant

    ok I found the 3.3v Voltage Regulator that says it’s an upgrade for my mod. Any good videos with some basic idea on where this should go?

    #35724
    Opat
    Participant

    I don’t know. I’ve just added the 3.3V on the board, scraped off the solder mask and soldered it. It looks ugly but it works.
    I’ve just found this video, it should have everything on how to do it: https://www.youtube.com/watch?v=NxGIhH4mSoI

    • This reply was modified 1 month, 2 weeks ago by Opat.
    #35801
    EatingInRetro
    Participant

    Thank you

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