OSSC Saturn issues.

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  • November 23, 2017 at 5:35 PM #17459
    ClarkDV
    Participant

      I have an issue with my Saturn. I have all consoles hooked up and they work great but my Saturn is strange. The image looks very wavy all the time. I tried messing with the Low Pass Filter settings, as well Precoast and postcoast, and phase, but couldn’t get anything to really change it so I just reset the OSSC to defaults. I figured it was something with sync tho. I think I have a generic Saturn rgb cable, do I need one with csync or luma or something? I am running it thru a gScartsw lite right now. Let me know if you have any suggestions

      November 23, 2017 at 5:44 PM #17462
      SirRockALot
      Participant

        Is the cable known-good? Are you maybe using an NTSC csync cable on a PAL console?

        November 23, 2017 at 5:51 PM #17463
        ClarkDV
        Participant

          I have a NTSC US Saturn. The cable just says “Saturn SCART” on the end on a yellow sticker. I believe it was from retrogamingcables. I don’t think it is a csync or sync on Luma cable. However, it could be generic, but I really think it’s from retrogamingcables.

          November 23, 2017 at 7:10 PM #17467
          SirRockALot
          Participant

            RGC have white labels on them, check their website. The well-known US seller Retro Access uses yellow labels. Generally, the video output from a Saturn is rather trouble free & compatible, the only thing I can imagine giving you such severe artifacts (apart from a defect on the console, of course) is using a csync NTSC cable on a PAL console or a model 2 console with a cable that misses the requires cap & resistor on the sync line. You could look inside the SCART head and see what’s in there.

            November 23, 2017 at 8:32 PM #17468
            ClarkDV
            Participant

              I am using a US model 2. So my cable might just be missing some extra electronics? Is there a cable that I can buy that has this or do I need to solder stuff to my board. I’m really bad at doing that lol.

              November 23, 2017 at 9:16 PM #17469
              SirRockALot
              Participant

                Nah, all model Saturns can output great RGB with the right cable (see http://retrorgb.com/saturn.html). I can personally recommend the cables from https://www.retrogamingcables.co.uk/ and from https://www.ebay.de/usr/thefoo.83, they both make their own cables and seem to know what they’re doing. For Saturns it’s important to note the difference between NTSC & PAL consoles. The PAL ones don’t do csync, so many ‘universal’ cables use sync-on-luma or sync-on-composite. thefoo.83 sells universal cables that output csync with a sync stripper that’s actually installed in a little box on the console side of the cable. If you only ever want to use your NTSC Saturn I’d recommend just getting an NTSC csync cable.

                I can’t promise you this will fix your issue, but if nobody else has any better idea getting a quality cable from a reputable seller might be a good idea. Cheap cables frequently miss required components, are sometimes wired wrong and can cause all kinds of picture/audio problems.

                November 23, 2017 at 10:04 PM #17470
                BuckoA51
                Keymaster

                  using a csync NTSC cable on a PAL console

                  If you do this you will actually fry your OSSC, the CSYNC pin on PAL consoles is +12 volt instead.

                  November 23, 2017 at 11:22 PM #17474
                  SirRockALot
                  Participant

                    Exactly. That’s probably why thefoo.83’s csync cables are sync-on-luma/composite with the sync stripper, less angry reviews from customers that bought the wrong cable and blew up their TV…

                    November 24, 2017 at 6:30 PM #17493
                    James
                    Participant

                      Try turning Sync regeneration off on your gscart. Fixed this issue for me on a PAL MS.

                      November 26, 2017 at 3:23 PM #17556
                      BuckoA51
                      Keymaster

                        Exactly. That’s probably why thefoo.83’s csync cables are sync-on-luma/composite with the sync stripper, less angry reviews from customers that bought the wrong cable and blew up their TV…

                        Yeah I guess, though sticking extra sync strippers in cables that aren’t needed is never a good idea.

                        November 28, 2017 at 3:41 PM #17625
                        ClarkDV
                        Participant

                          That was it! Looks amazing now! Thank you so much!

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