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Topic: Strong Yellow Tint on Power Point
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Joined: Oct 21, 2006
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What would cause a strong yellow tint over the entire picture being produced from a Power Point image? The projector is less than one year old and has less than 500 hours on the orginal Lamp.

Thank You all for your time and support.
Paul
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Joined: Mar 31, 2005
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Paul,

We just solved this same issue in one of our rooms by replacing the tips on the cabling. Have you tried replacing all the cabling and attaching a different computer to make sure it is the projector? It is also possible that your bulb is failing and will need replacement.
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Joined: Mar 28, 2005
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A strong shift in color on a computer connection is an indication that you are not getting the compliment to that color into the machine.

The three colors that are sent over a VGA cable are red, green, and blue.

The compliments are cyan, magenta, and yellow.

Red/Cyan - Green/Magenta - Blue/Yellow

You said yellow is the color of choice - so the blue cable is the one that has the issue.

This connection issue could be in MANY LOCATIONS! It is most often in the cable between the computer and the projector, but it could be internal to the projector or internal to the PC. So, the best thing to try first is a laptop with a short VGA cable (a new one!) hooked up directly to the projector.

Hopefully it is a different laptop than what you currently use. See if the color issue persists with these two changes... My bet is that it won't.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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You called it right on I had the contractor back in and we found a Bent Pin on the VGA cable. on another system we had a very simular prolbem, I went back to check it but the color showed up normal this time. I will keep an eye on it. Is there somthing that could have been done in the power point that would cause a change in overall color?

Again Thank you very much for your time and support

Media Tech
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Quote (media tech on Oct 25, 2006 8:28 PM):
I will keep an eye on it. Is there somthing that could have been done in the power point that would cause a change in overall color?

Generally speaking, video cards inside computers can have color adjustments made to them. But, this is rarely done and is highly atypical. In PowerPoint itself, there is nothing that I know of that can change colors other than actually using the wrong colors.

The most obvious color is white - since white consists of red/green/blue if you see a shift towards green, cyan, or magenta then you are missing the connection on one of the three primaries as I listed above. It is typically global on any PC hooked up to it and is a common issue with INITIAL equipment setup.

It is one of the reasons why it is good to dedicate a PC to a conference room/board room/training facility. You know all the applications will be on that machine, that it is reliable, and that it is properly configured. If you DO use short VGA cables to hook up laptops, make sure to keep some spares on hand in case you lose one (someone steals it) or a cable goes bad.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.