Question about InFocus Proxima DP6810 Multimedia Projector

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Purple pixels in my DP6810 MM projector

I have reset the defaults to factory specs, replaced the bulb, blow air into it but these purple pixellations just won't go away.

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I have three of these units and all experienced the same problem and repair. I cleaned not only the lcds but all the glass panels and lenses near the lcds. You can power up the unit, select test screen, then carefully unplug and remove the top cover. With it on you can use a q-tip and CAREFULLYA AND DELICATELY clean the lenses and lcd screens. Some of them have a tight clearence so youll need to cut down your q tips to fit in there. It takes be about an hour per projector but i am able to remove the offending dust and FIX the purple splotches. I forget what color it is but its the center mounted lcd that when dirty makes the purple ****. YOU WOULD BE AMAZED AT ALL THE **** THAT GETS STUCK IN THERE!

Posted on Dec 08, 2010

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You have a bad lcd panel. bad news: you'll have to replace the entire optical engine

Posted on Dec 29, 2009

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3M MP8725 - Purple screen image only


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USD200
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My Epson PowerLite 1725 projector has a wide green bar displayed in the middle of the screen with a purple shadow on its right. Do you think a bulb replacement would fix it?


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My proxima dp6155 projector after any time looks with a vertical purple line in the right side, whats the problem


reset the settings to factory default. there may be a resolution issue. make sure it matches the source. if the line is straight and goes right along the pixel line, you may have an lcd issue. if it's blurred, it could be a bad polarizer.

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Got a purple stripe from the lower edge of the screen center to center. gradient to the middle of screen. like 100 lines wide. any hints THANKS michi m


if it's sharp edged and inline with the pixels, you have a bad green lcd panel. if it's fuzzy and random, you have a burnt light filter. either way, it's an optical engine issue. you can try to go into the case, remove the ribbon cable for the green lcd (unlock the ribbon clip first) and reinsert it and lock it down. if that doesn't work, you'll have to replace it.

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no, it is the light filter (polarizer). it is caused by excessive heat and dust buildup. blow out projector with canned air to prevent further discoloration, but the filter needs replacing.

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After 20 minutes of use picture shuts down. (Sharp XR-10X)


use canned air and blow every bit of dust out of every vent and hole. if you want to, you can remove the top (6 screws on the bottom, and the 2 top screws on the back) and blow dust out that way. i could also be a power supply problem. from excessive heat, the capacitors on the ps dry up and don't work as they should, causing shutdown.

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