Neo Geo AES Unsupported Signal On Sony TV

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  • November 6, 2018 at 6:46 PM #23623
    Missile
    Participant

      Just tried out my OSSC for the first time. I updated the firmware and then plugged my JPN Neo Geo AES into it via RGB Scart. I have a Sony KDL 32 inch TV. I pressed “1” on the controller to get the right input. I get “Unsupported Signal” come up on the TV screen.

      I have UniBios installed in the Neo Geo but no other mods. (RGB is still original output)

      Do I need to buy a new TV? or is this fixable?

      Please help.

      November 6, 2018 at 8:12 PM #23625
      BuckoA51
      Keymaster

        Did you try different line multiplication modes?

        November 6, 2018 at 9:46 PM #23626
        Missile
        Participant

          No I haven’t tried. I was just using what comes up on the default. I will try changing them. Thank you. Hopefully it will work.

          I am using HDMI output from the OSSC btw. I tried all the input sockets on the TV just in case.

          November 7, 2018 at 1:07 AM #23630
          BuckoA51
          Keymaster

            try also setting the output to DVI mode, you will lose audio but it may help.

            November 25, 2018 at 6:42 PM #23937
            Missile
            Participant

              Hi I am still having trouble with this. I tried every line multiplication mode I could and nothing worked. I also tried passthru and that didn’t work. The TV still says “Signal not supported”. Before I choose AV1 input though, I get a grey scale screen.

              On the OSSC screen for my Neo Geo it says AV1 : RGBS 263p 15.71Khz 59.795 Hz

              Please explain more about DVI mode. Can I still use that with HDMI cable?

              November 25, 2018 at 7:01 PM #23939
              Trixster
              Participant

                Try firmware 0.76

                November 25, 2018 at 7:03 PM #23940
                Harrumph
                Participant

                  Yes, HDMI cable works. It’s the same video signal but with audio and Infoframe data stripped out.
                  You could also try adjusting the vertical frequency with a dual frequency oscillator (DFO). See here (that guy had an MVS though): https://shmups.system11.org/viewtopic.php?f=6&t=33450&p=1090558&hilit=Dual+frequency+neogeo#p1090558

                  I thought AES was also 264 lines (like MVS), but 263 lines and refresh that close to 59.9 should work on like 99% of TVs, shows how picky Sonys can be.

                  November 25, 2018 at 8:52 PM #23941
                  marqs
                  Participant

                    Have you tried these settings? Also, could you post details shown on the info screen (displayed when INFO button is pressed while source is active)?

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