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OSSC Saturn issues.

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This topic contains 10 replies, has 4 voices, and was last updated by  ClarkDV 2 months, 3 weeks ago.

Viewing 11 posts - 1 through 11 (of 11 total)
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  • #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

    #17462

    SirRockALot
    Participant

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

    #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.

    #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.

    #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.

    #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.

    #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.

    #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…

    #17493

    James
    Participant

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

    #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.

    #17625

    ClarkDV
    Participant

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

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