Question about Toshiba 57H84 57" Rear Projection HDTV-Ready Television
Just vertical lines
Posted by Anonymous on
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Posted on Jan 02, 2017
Hi,Yes your problem sounds like the DMD board.This is how it works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Here's a video that will help you find where the DMd chip is located : http://www.youtube.com/watch?v=0jr_9A5Xd2Q Have a blessed one!
Posted on Apr 30, 2010
You may have one of two issues here--noisy lines when set first comes on left to right---they clear up after 10-15 minutes.
Other possible is a convergence problem--colored lines, 3 d looking etc--see typical photos attached---Problem does not sound like a cleaning issue--
let me know which issue you seem to have with a comment here.
Posted on Apr 26, 2012
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