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Activity Forums Blackmagic Design Decklink HD Pro 25hz monitor ouput not working

  • Decklink HD Pro 25hz monitor ouput not working

    Posted by Jean-luc Gason on October 19, 2006 at 9:25 am

    Hi,

    I’m having a strange thing happening, I have a Decklink HD Pro and I’m trying to get a monitor output on a Sony BVM HD in either Final Cut or Final Touch, but I’m having a strange problem :

    It works perfectly if I choose 24hz or 30hz 10 black magic, but not in 25hz. When I switch to 25hz my monitor just switch to black saying “no sync”.

    Weird isn’t it?

    do someone have any idea of why 25Hz isn’t working?

    Best regards,

    Jean-Luc

    Jean-Luc Gason

    https://www.10bitlog.com

    Luke Maslen replied 19 years, 7 months ago 3 Members · 5 Replies
  • 5 Replies
  • Nico Sandhof

    October 19, 2006 at 10:01 am

    ntsc only monitor? or (not auto) switchable to pal?

  • Jean-luc Gason

    October 19, 2006 at 11:13 am

    Nah, full multistandard monitor, used on an Avid DS to try and PAL is working perfectly on this monitor.

    Jean-Luc Gason

    https://www.10bitlog.com

  • Luke Maslen

    October 20, 2006 at 2:46 am

    Hi Jean-Luc,

    I was going to ask the same question as Nico but you’ve answered that one. We do plenty of PAL frame rate testing in SD and HD so we know it works.

    If your monitor has both SDI and component analog inputs, then I would guess you are using the SDI ouput of DeckLink HD Pro for your testing. Switch to component analog output from the DeckLink HD Pro and see if that helps. Many broadcast monitors fail to detect a change in video format when you connect via SDI but they will happily switch when using analog connections. The DeckLink HD Pro can perform the SDI to analog conversion for you rather than using the SDI to analog board in the broadcast monitor. The quality will be just as good so it is worth trying to see if this makes a difference.

    Please let me know what you find.

    Regards,

    Luke Maslen
    Blackmagic Design

  • Jean-luc Gason

    October 20, 2006 at 12:44 pm

    Hop, found out what it was, I was indeed using HD-SDI ouput and INPUT on the monitor, but somewhere in the blackmagic panel, downconverting was enabled. And the HD-SDI input from the BVM monitor doesn’t recognize SD-SDI.

    Turned downconversion off and it fired up.

    Thanks for your help,

    Jean-Luc

    Jean-Luc Gason

    https://www.10bitlog.com

  • Luke Maslen

    October 23, 2006 at 3:56 am

    Hi Jean-Luc,

    That’s pretty funny 🙂 Thank you for posting the solution to your problem as I bet you won’t be the last person to encounter that problem.

    Regards,

    Luke Maslen
    Blackmagic Design

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