Recently had dmd chip replaced (white dots). now the picture is clear (and reformatted) but it freezes and pixels mess up. Mitsubishi said check the receiver and reset the tv by holding power button. so i did the reset and att sent new receiver and still have problem. did not have a problem with format or skipping prior to my dmd chip repair
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had white dots on mine as well i changed the dlp chip and put it back together and got the white vertical lines i decided to check all connections and make sure the chip was locked in correctly
it was not locked in securely i reassembled and now problem solved picture looks brand new so always check connections before assuming its the dmd board
White dots on your RPTV television are the result of the DLP chip being worn out. You can replace it very easily by buying a new DLP chip for just under $190 and installing the new chip. There is a very good forum over at fixyourDLP that offers tutorials for replacing the DLP. http://www.fixyourdlp.com/2012/10/11/banish-white-dots-from-the-samsung-hl56a650c1-with-a-new-4719-001997-dlp-chip/ or for Mitsubishi http://www.fixyourdlp.com/2012/10/02/install-a-new-4719-001997-dlp-chip-and-banish-white-dots-on-the-mitsubishi-wd-82737/
Mitsubishi that the one,who u should contact.Talk to them make some kind of deal with them to help u to do a repairing or replace the tv Light Engine Projection Block.That the tv problems,this problems a design flaw on the tv Light Projection Egine Block the IC they put in that causes of this white spots are showing up will continue showing up more and more white dots.It will not stops.
Buy a new DMD Chip and replace it yourself only cost you $159 which save at least $100 to ask a repairing center to do it for you. Check the video how to do this. Source: DMD Chip replacement tips And your DMD chip should looks like
Hi, White dots are due to bad DMD chip and qualified tv tech can replace required DMD chip in this tv to fix the picture issue. Please contact nearest Samsung service center or local tv repair shop for repair estimate. Thanks.
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,picture will freeze,color distortion or white dots on screens.I couldn't find the Dmd by itself but found it with the complete light engine http://www.discount-merchant.com/SAMSUNG-BP41-00119E-p/1171034.htm?Click=48173 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!
The random whit dots you are seeing is more than not the DMD or million little mirrors board. The white spots represent some of the mirrors that are sticking in the on position. In that case they are always reflecting white light from the lamp. I don't concider the DMD board a do it yourself repair since on the older DLP set it requires mechanical alignment as well. The best thing to do is contact a techincian and see what they might charge to repair the TV for you. Please take a few moments to rate my answer...Thanks..