Question about Hitachi CP-X443 Multimedia Projector
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
May be the new bulb, where did you buy it???
Posted on Sep 19, 2009
How defined are the dots? Is each blue dot limited to the size of a pixel? I suggest you create a 3 slide image in powerpoint ..one slide completely blue, 1 red and one green. then project each image in turn and note what happens with the blue dot. My first thoughts are you have some pixels that are locked. Once that happens if are pretty much stuck with them. Optical it is impossible for a dust on the lens etc to cause them as if the picture is in focus at the screen the dust is way out of the depth of the field, sometimes you can focus the projector so that the point of focus is the lens surface but then the actual content will be way out of focus...none of which has anything to do with your blue dots. Regards Kevin Andreassend, ICE AV Technology Ltd, http://www.digitaldaytime.com
Posted on Sep 19, 2009
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Posted on Jan 02, 2017
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