Possible x2 incompatibility problem

NewHome › Forums › OSSC, OSSC Pro and DExx-vd isl › OSSC – Discussion and support › Possible x2 incompatibility problem

Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • April 23, 2018 at 7:50 PM #21057
    Lake
    Participant

      I just bought an OSSC.
      I have a SNES (pal version) and a MegaDrive with a pal/ntsc/ntscJ mode selector.
      My television is a philips model 32pfl8605h.

      I read in the wiki that default line doubling is expected to work with any television,
      but I was surprised to see “video format not supported” on my TV when I tried playing with
      the MegaDrive in ntsc/ntscj format.

      This is the format that is being displayed on the ossc:
      YPrPb 262p
      15.55Khz 59.36Hz

      With the selector switched to PAL, the television has no problems.
      The SNES also has no problems as the video format is different.

      My question is: is it normal that my television doesn’t support the
      supposedly universal line doubling format?

      Might there be something wrong with my modded MD?

      Thanks in advance.

      April 24, 2018 at 8:45 AM #21071
      Harrumph
      Participant

        I had a similar TV model before which would handle a modded SNES in NTSC mode no problem (59.53Hz), so maybe that’s about the limit for vertical refresh rate. I think you might have crossed the tolerance level for vertical refresh with that modded MegaDrive.

        A solution would be to get a Dual Frequency Oscillator, to output correct clock speed for NTSC.

        April 24, 2018 at 8:59 AM #21072
        BuckoA51
        Keymaster

          I remember encountering a Philips TV that was actually more compatible in line triple, so you should definitely give that a go too.

          April 24, 2018 at 11:32 AM #21074
          Lake
          Participant

            I’m gonna ask a very, very stupid question now but..

            There’s no way to set line triple without the remote controller, right? ^^;

            April 24, 2018 at 12:35 PM #21075
            Harrumph
            Participant

              I remember encountering a Philips TV that was actually more compatible in line triple, so you should definitely give that a go too.

              Right, I had forgotten about that, lol. Had noted it in my own initial report. 🙂

              Yes, you need a remote to access the menu to set Lx3.

            • Author
              Posts
            Viewing 5 posts - 1 through 5 (of 5 total)
            • You must be logged in to reply to this topic.