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I have white dots appearing on my veiwing screen.

What is a DMD Chip?

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  • Master
  • 8,617 Answers

Its a DLP chip Basically its alot of super tiny mirrors that open and close at various times to produce the image. The dots your seeing are mirrors that have stuck and the only repair is to replace the DLP chip which is easy but pricey 300.00 you can get repair kits with installation instructions from www.tvrepairworld.com

Posted on Jan 01, 2013

Testimonial: "Very helpful."

  • Russell W. Odom Jan 01, 2013

    Thank You. I'll have to wait till the problem gets worse and save money. But at least now I know what to do.Thank You very much.

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SOURCE: Samsung DLP HL-S4266W White dot problem

Its the DLP IC chip itself that is bad. The DMD board is where the chip resides but if you order a board, it will come without the chip. Its not cheap and the replacement is tricky because the DMD board must be removed and then an alignment of picture centering will be necessary.

michtech

Posted on Feb 14, 2009

  • 304 Answers

SOURCE: I had the black & white dots on my 46

Make sure you have firmly seated the new Lamp. The next step is to go to the rear of the set and put your ear next to the Lamp Door while turning "ON" the tv with your tv remote.
You should hear a short buzzing sound. That is the Ballast "Exciter" firing up to light the Lamp. If you do not hear this buzzing then you probably have a bad Ballast. Ballast part# is BP47-00037A

Posted on Jul 17, 2009

SOURCE: White dots appearing on Samsung TV screen and multipling each day

It seems you might have an issue with the dmd board. Go to the menu, and if the dots still show on the menu, the issue definitely is with the dmd board but if they don't come up on the menu, the issue will be with the video board.

Posted on Aug 20, 2009

  • 14 Answers

SOURCE: tv repair manual samsung hls4676s

dmd chip

Posted on Oct 24, 2009

tvtek
  • 1284 Answers

SOURCE: Own a Samsung DLP TV 42 inch and white dots have

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..

Posted on Nov 22, 2009

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1 Answer

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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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We supply original projector lamp,bulb,accessories,Lcd panel,Lens,DMD chip,color wheel,motherboard,powersupply,ballast... with high quality and competitive price.
have a nice day!
Jerry,Lampdeng Limited
skype:lampdeng

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we supply the new DMD chip,it's life is 6 years, and the price is USD200

Have a nice day!
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have a nice day!
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