Question about Optoma EP732H EZPRO DIGITAL PROJECTOR Multimedia Projector

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Optoma EP 732H Blue/purple tinge

Our computer lab uses a Optoma EP732H display. It is working but the images are dark and have a blue/purple color. I am using a dell latitude D505, and I have a smartboard attached. I've tried adjusting the color, temp, etc. It is on data setting, rgb. The conector pins are ok, The projector and the laptop are set to 600-800 high color. Read the manual but no luck for my problem. The bulb only has 200 hours on it.
The website is no help. I have also tried to reset but it won't let me change it to yes.

Thanks,
jmm521

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  • glossic Mar 06, 2009

    I have loss of color with a purple/grayish tinge to the picture. I am runinng the projector connected to a DVD player. I have switched cables and don't believe that is the problem.

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I have the exact same problem with my EP732H, and in the case of my machine it is not the cable that's at fault.  It is also not the color wheel's fault.  I believe the green data is not getting processed internally by the projector, so I'm only getting red and blue which makes purple.  This happens with all three inputs - the VGA, S-Video, and Composite.  I have my machine apart now but have not successfully fixed it.  Wish I could get hold of a schematic.  

Posted on May 31, 2008

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Hi jmm521

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

Thanks for using Fixya !

Posted on Apr 30, 2008

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1 Answer

Make a noise when you turn it on like when you have fan out of balance


the color wheel is broken,
it is running out of balance,
you need a new color wheel usd75
any questions, feel free to ask me
have a nice day!
Jerry Lampdeng Limited

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Hi tourblack

I wouldn't think that this is a lamp issue , as the lamp will make the picture fade away in brightness and wouldn't look white washed.

Check if the brightness is set to 50% and the contrast on 50% as well.

This could be a colourwheel that is in need of replacement.

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