Question about Eiki LC-X1100 Multimedia Projector

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The projector started flashing a slight purple color in the top right corner. The rest of the picture display's fine. We checked the bulb and it is fine, the lens is okay as well. Any clue on this one?

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  • danny74 Feb 15, 2010

    What can we do about color decay? Is it just something I need to take it to a professional about or is it as simple as a bulb replacement?

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That would be colour decay.

Posted on Feb 13, 2010

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1 Answer

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If it is a known problem, then it is a manufacturing error. They have just admitted that is a MISPLACED washer. Have Optima repair it free of charge.

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Why does picture look slooped at top and rest of


Thats call keystone. That happen when projector is not properly align with screen. Most of projectors come with digital keystone corrector in the menu settings. Ensure is setup to 0 and check lens of the projector is at the center of the screen. Also if the projector is too high or too low will cause that problem too. Just move it arround until you find the right place to mount it. Best of luck

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Bottom right corner has a tint projector bulb is good


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I have the optoma h31 projector and the color turned purple. We assumed it was the bulb and put a new one in. The color is now still not right and the picture sorta bounces


I had a similar issue with my EP739, the problem would start after about 3 or 4 minutes and then get gradually worse and worse..
The most strange thing I noticed was that white looked fine. And if you opened the configuration menu in the projector it appeared that blue was labeled green and green blue..
Some sites suggested cleaning the machine of dust, which I tried using a can of compressed air... This did not fix the problem at first.. but when I had it apart I studied the colour wheel for a little while and wondered if some how the machine was synching to it incorrectly somehow.. So I blew out the colour wheel location sensor (It's kind of obvious being the only component mechanically connected to the color wheel. Much to my delight, this fixed the problem...

So my solution to the flickering / colour fading / colour swapping issue with DLP projectors was to clean out the dust from the colour wheel location sensor..

In fact, if I did it again, I would ONLY clean the sensor, and leave the rest of the dust alone. Blowing dust around has the potential to cause other issues, especially if it winds up inside the optics system.

- Nate

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I have the same problem as philvo. I was watching, the projector was operating normally, I heard a snap, there was a flash of light behind me I believe, and my Mitsubishi XD300U projector went to a black and white picture. That is all it will show now. All lights show normal operation. I would like to know if it is worth getting repaired. Does anyone have any ideas?

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Degrading picture with my Dwin projector


the colorwheel is going bad and needs replacing. the colorwheel needs to spin fast enough to sync up with the dmd chip. if it cannot, the pic goes bad then off. the flashing is the colorwheel trying to catch up.

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