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Thread: Weird colour problem

  1. 07-12-2009, 04:15 #1
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    Default Weird colour problem

    Since changing to an FB3 DAC I have this problem with my blue and green output. The top half of the image is fine, but progressively lower in the frame (any frame, including test frames in projector settings) the output from the blue and green lasers fades to nothing.

    Could this be due to them being CNI units, and being single ended input as the Laserwave red is fine?

    If this is the case; would installing DZ's colour board give me differential inputs or do I have to make something with op amps?

    Cheers, Ian
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  2. 07-12-2009, 07:15 #2
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    Hi Doc

    All of the CNI heads in my projector are wired single ended and work just fine with my FB3. Have you connected the blanking grounds to pin 25 as the FB3 has only single ended outputs for blanking.

    Carl
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  3. 07-12-2009, 07:31 #3
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    No I haven't got pin 25 connected at the present, it's currently wired as Bill's projector connections paper (which says that if you're using single ended blanking you must convert to differential).

    I'll give that a go, thanks Carl.
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  4. 07-12-2009, 11:59 #4
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    Thanks Carl, extra biccies for you when we meet
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  5. 07-12-2009, 12:16 #5
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    Glad to be of help. Gingers or Hobnobs will be just nice.

    Carl
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