[SOLVED] N64 RGB Advanced works on TV but not on OSSC (no sync)

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  • April 5, 2020 at 4:22 PM #36771
    BlueStinger
    Participant

      Hi, I have a PAL N64 with a RGB Advanced board (and no filter add-on), I’m using a SNES NTSC Csync cable (from RetroGamingCable uk).
      It works fine on my PVM and on a random Samsung 1080p TV but I get a “no sync” on the ossc.
      Am I missing something ?
      From what I could tell, the filter add-on is more for some problematic capture cards and to make PAL SNES cables compatible, is this required to work on the OSSC ?

      SOLUTION : Run a small wire between pin 3 and 7 (Csync and Luma)

      I just installed another one on another N64 and I get the same results : ie. No Sync on OSSC

      Also, both of them don’t work in line 2X mode on my TV (samsung 1080p), the screen is cut in half as if I was sending 31KHz to a 15KHz display. I’m not sure this issue is related though

      April 5, 2020 at 5:57 PM #36778
      nmalinoski
      Participant

        To be clear, the OSSC is saying No Sync (and red LED), not just the TV?

        April 5, 2020 at 6:01 PM #36779
        BlueStinger
        Participant

          It says “no sync” but the LED is actually green. I get the test pattern on screen too

          April 5, 2020 at 7:43 PM #36780
          BuckoA51
          Keymaster

            I don’t remember having any issues with the prototype we had in here.

            April 5, 2020 at 8:02 PM #36781
            BlueStinger
            Participant

              Yeah, I’m out of ideas now. Both consoles behave the same way, they work fine on a PVM, a 1080p Samsung but not on the OSSC. I’ve made sure that the composite and CSync lines lead to nowhere but it didn’t make a difference. My install is very clean and it works on other devices (TVs) so maybe I didn’t understand the point of a jumper but I keep reading the installation guide and I can’t see what’s wrong.

              April 6, 2020 at 11:07 AM #36791
              BlueStinger
              Participant

                Solved ! Simply by running a wire between the Csync pin and Luma (marked “Y” – basically, run a wire between pin 3 and 7). I can’t believe that was the issue, I kept telling me it wouldn’t work and tried that just for the sake being comprehensive.

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