• Blackmagic Design

  superblack pluge crushed on SD Analog out

  Posted by Chris Borjis on January 31, 2013 at 5:52 pm

  I’ve been trying to solve this odd issue.

  when I bring up SD BARS in final cut the super black
  (left most) part of the pluge is crushed and looks
  the same as the middle pluge (lower right of bars)
  on component output to my broadcast monitor.

  I’ve confirmed it is not the monitor.
  I have a multibridge in another room, same driver, no problem on it.

  This Decklink card is the one having the issue.

  SD BARS on SDI out is fine. (does not crush)
  HD BARS on analog component out is fine. (does not crush)

  I’ve tried enabling/disabling the 0 and 7.5 IRE which only
  makes it darker when trying zero.

  I’ve tried manually adjusting the analog output and it does
  not solve this. When I go to maximum the crushed pluge suddenly pops
  on screen as white and of course the rest of the bars image is much
  brighter.

  I am working with BMD to solve this and have already tried a replacement
  decklink card and cable. -issue still persists

  Maybe one of you has seen this and know whats up.

  Chris Borjis replied 13 years, 7 months ago 1 Member · 1 Reply
• 1 Reply

• 

  Chris Borjis

  February 1, 2013 at 6:13 pm

  upon further testing, if I put the SD Bars in a timeline, then add a 3-way color corrector
  and add a value of 7 to the black levels, the bars then show the super black pluge.

  This doesn’t solve the problem, but proves the card is somehow crushing
  the super black. I do have 7.5 IRE level set in the control panel.

  Any suggestions?

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