Question about Optoma EP739 Multimedia Projector

Open Question

Red is not displaying

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

Posted by on

  • 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

drifterK
  • 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

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Optoma HD80 flashing blue lights


Sound like the original color wheel for Optoma HD80 is bad.

If the unit has been moved when hot.

If not, try un-plugging the unit for a few minutes and re-connect.

Hope this helps

Mar 23, 2014 | Optoma HD80 Projector

1 Answer

Optoma ep721 macbook


Use the menu on the projector to disable auto detect on the input (source).

May 04, 2013 | Apple MacBook Pro Laptop Computer with...

1 Answer

Optoma ep721 dlp projector


Check that it is not "Out of Range" in other words the resolution is incorrect.

May 04, 2013 | Computers & Internet

1 Answer

Optoma EZ Pro does not connect to laptop. Tried Control Panel / connect to laptop / dual display, but computer will not recognise projector.


reload software and reboot entire system after make sure Optoma power is turned on before turning on computer

Jul 21, 2010 | Samsung Computers & Internet

2 Answers

Black and white prints are not black


Sorry, steve, that you are experiencing this problem.

According to canon.com's website regarding the i9900 InkJet Photo Printer:

Why color ink may be used when printing in black and white Even when printing in black and white, color ink is used for the following reasons:
  1. Automatic cleaning of the print head.

    To prevent the print head nozzles from clogging, the print head is automatically cleaned periodically. At that time, a small amount of each color ink is consumed.

    Therefore, although printing in black and white is performed, color ink is also consumed.

  2. Color inks may be used to create black.

    When printing in grayscale or on photo paper or when duplex printing, although printing appears in black and white, the color black may be created using the three (cyan, magenta, and yellow) color inks. Printers without a pigment black tank / cartridge will print black / grayscale will create a composite black using color ink even on plain paper.

    Therefore, although printing in black and white is performed, color ink may be consumed.
  3. In order to keep the heavy black ink from smearing on the page or in the printer, color ink is used when duplex printing to help create black text.

    ---
I might suggest taking out the color ink cartridges leaving only black there, but some printers don't take kindly to this. So, you may have to further experiment with magenta, cyan, and yellow to make it at least seem b&w to your best eye's judgment.

Good luck on this.

Jul 13, 2010 | Canon i9900 InkJet Photo Printer

1 Answer

What cables do I need to connect my MAC laptop


you can use a male to male vga cable. your mac came with an adapter cable which will connect to your laptop and to the vga cable.

Jun 02, 2010 | Optoma HD65 DLP Projector

2 Answers

Optoma EP 732H Blue/purple tinge


Hi jmm521

Try using a different VGA cable as connection - WILL solve your problem !

Thanks for using Fixya !

Apr 29, 2008 | Optoma EP732H EZPRO DIGITAL PROJECTOR...

Not finding what you are looking for?
Optoma EP739 Multimedia Projector Logo

Related Topics:

29 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optoma Office Equipment & Supplies Experts

color wheel light...
color wheel light...

Level 2 Expert

137 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

The Knight
The Knight

Level 3 Expert

72248 Answers

Are you an Optoma Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...