Question about IBM E400 Multimedia Projector

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E400 black screen with white dots

I have a IBM E400 Projector hooked up to a DELL laptop. Has worked flawlessly for years. Now all of a sudden when I turn the projector on, I get a black screen with white dots everywhere. Kinda looks like the sky at night. Anyone experence this problem or know what it is?

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Calmly explain that you know the white dot problem is rampant, that you know that these failures are being handled out-of-warranty, and that you'd like to have your unit handled similarly. (For the record--never, never get irate with a phone CSR. You get much more with sugar than you do with salt.)

A little research will show you that Texas Instruments is the primary manufacturer of the DMDs. They license other companies to sell their devices in their rebranded units. So any white dot problem can be handled the same way with any other company. Be patient, but be firm. Never be afraid to calmly ask to speak to a supervisor when you don't receive the answer you're expecting.

Posted on Feb 22, 2012

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Hi, I am having the same problem right now with my BenQ projector! Did you manage to fix your issue?

Posted on Jan 29, 2010

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Posted on Jan 02, 2017

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1 Answer

The image has little black and white dots everywhere. What is the problem?


1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.we supply the DMD chip

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1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.
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