Question about Optoma EP739 Multimedia Projector

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Red is not displaying

I have the Optoma connected to my mac laptop and all red color is displaying as desaturated

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  • jessedgregg Jan 04, 2009

    mine is doing the same thing, all reds become purple and theres severe rainbow effect, my projector is brand new!

  • TechAdvice Jan 07, 2009

    My Optoma 739 is displaying a flicker-like effect when projecting the picture, and the picture quality also has a "mosaic" like effect in appearance.


2 Suggested Answers

  • 4924 Answers

SOURCE: My optoma works well with

if you tried all the settings on the video card in the Mac ..and it made no changes..than the issue might be from the conversion cable from the DVI to vga..if you use an adapter cable ..and not a direct dvi to vga ..try to change it maybe it is the issue ..
anyway ..first try to adjust the image by defaulting the settings into the video setting of the Mac ..but the idea with a defective or ..wrong pin-wired cable is still on ..and worth trying ..

Posted on Aug 28, 2010

  • 8909 Answers

SOURCE: we are using windows 7

Probably FN and F5 key or whichever key controls your display routing.

Posted on Mar 07, 2011

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