YYsMG

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  • May 17, 2021 at 4:22 PM in reply to: fine tuning an image from AV3 #47416
    YYsMG
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      So i’m a little late seeing this. The DB15 adaptor needs to be one with dip switches that can support an RGB signal, a scan of the info that came with mine is below:

      dip switches

      As a IIsi outputs 640×480 RGB, the second row contains the required switch values. I am unsure of the use-case differences between each of the modes, it probably doesn’t apply to the OSSC as they all seem to work.

      Converters without these switches probably only support VGA but thats just me guessing

      August 3, 2020 at 8:56 AM in reply to: fine tuning an image from AV3 #40271
      YYsMG
      Participant

        Thanks for that, the dotclock figure sent me in the right direction. The complete list of changed figures ended up at

        H. samplerate – 864
        H. Backporch – 91 (96 cut out a bit of the image)
        H. Synclen – 64
        H. active – 640
        V. Backporch – 36

        picture is now clean. Cheers!
        woo

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