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Hi, I need help with my acer K11 projector. White spots started appearing on the screen when displaying dark background. I think its just dust and it needs cleaning. I do not know how to open it to clean it properly. Thanks for any advise.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

tinamarie49
  • 34 Answers

SOURCE: Red specks on screen always in the same spot

You can take the projector apart and carefully clean the backside of the lens.

Posted on Dec 05, 2007

  • 1 Answer

SOURCE: blue spots on screen

Obviously this is not the first lamp you have replaced in you projector. These are great projectors however, the LCD panels expire quite quickly. You will find that the spots are related to the LCD panels needing to be replaced. This is not an inexpensive maintainence solution as the panels cost about $1500 each.

Posted on Jan 25, 2008

  • 1 Answer

SOURCE: Red spot on LCD

My friend's TV was well out of warranty and a Sears (the retailer) tech agreed that the engine needed replacement. They called Hitachi Customer Relations who will send the part to the home at no charge. Sears did not charge for the service call, but will charge $242 for labor to install the parts and adjust the TV.

Thanks for the posts. He saved $$$$.

Posted on Jan 26, 2008

Marrie
  • 563 Answers

SOURCE: Dell 3200 Projector

Hi Tara

This normally indicates that the lamp will need replacement.

The Ibook and this Projector are compatible as long as you run a Microsoft operating system i.e. Windows 98' and higher.

When replacing the lamp , you can just as well clean out the Projector - this is quite important as it prolongs the life of your lamp.

Posted on May 19, 2008

  • 1 Answer

SOURCE: Dark Horizontal Bands

Hi, when I last posted I found that luckily I was covered by my insurance/warranty (good 5 yr cover from House of Fraser!) so we had an engineer come and check the tv.  Within seconds of seeing the tv he diagnosed the screen as duff and said it would have to be replaced.  Even more luckily, the insurance paid out for the full value of the tv to the value when we purchased it so after retiring the 'screen of inconsistency' we quickly went about finding another and we finally bought a 32" Panasonic Viera.  Again from the House of Fraser and again with a good old 5 year cover!!  It would seem with LCDs, reliability is not yet there so the correct cover is the key to a happy life!!  Good luck.

Posted on Sep 20, 2008

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2 Answers

I have an Acer K11 projector and there are a whole lot of white spots on the bottom right of the screen that looks like dust on the lens but it is not as I have cleaned the lens . Any advice ?


This is a DLP projector, the white spots are likely bad pixels and the DMD chip will need to be replaced. Will run you around $150 or so.

Sep 22, 2016 | Acer K11 Projector

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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 chipset

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

Jun 08, 2014 | Acer Office Equipment & Supplies

1 Answer

Dark Spot on Lower left screen


1,white spots appeared on screen,means the DMD is broken,you need a new DMD. USD150-200
any questions, feel free to ask me
have a nice day!
Jerry Lampdeng Limited

Feb 03, 2014 | Acer H5360 3D DLP Projector

2 Answers

Black and white dots on screen


Hi Emmanuel,

I think your projector lamp and LCD area is dusty.
please use pressurized air can and clean the area.also check the dust filter.
do it carefully.
regards,
nuwan

Jan 27, 2014 | NEC NP215 Portable Projector

1 Answer

Lots of dots on the screen. In light areas they are black dots, in light areas they are dark dots


1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.
we supply the new DMD chip,it's life is 6 years, and the price is USD200

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

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Small white spots on screen acer x1230k


1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.I supply the DMD chip and the price is USD200

any questions, feel free to contact me
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

Nov 21, 2013 | Acer X1230K OEM Projector Lamp

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My Acer X110 projector has steadily seen lots of black spots appear on screen, that begin to flicker, then turn white. A new lamp has been fitted and it appears this was not at fault. Any ideas ?


1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.I supply the DMD chip and the price is USD120

Have a good day!
We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and competitive price.
Jerry Lampdeng Limited
Mobile: 0086-13178867858
Wechat ID: 008613178867858
Whatapp ID: 008613178867858
Skype: lampdeng@hotmail.com
http://www.lampdeng.com

any questions, feel free to contact me
have a nice day!
Jerry Lampdeng Limited

Nov 02, 2013 | Acer X110 OEM Projector Lamp

1 Answer

Dust particles being projected onto screen with BENQ MP 525 projector


White spots on the screen are generally caused by a bad DMD chip.Multiple elements of the chip remain continuously on causing these spots.Solution is replacement of DMD chip.
Samr

Jan 14, 2013 | BenQ MP511 Projector

1 Answer

I have dark and white spots flickering while it is projecting on the screen


The DLP chip is going bad. You are better off buying a new projector.

Jun 13, 2012 | Acer X1161 3D DLP Projector

1 Answer

I have optoma pk301 pico proyector,suddenly a few white and dark spot have appeared


Its a bad DMD chip. Seems this is a common problem with the PK-301's sadly. Mine is out of warranty and a new chip runs about $180.

May 28, 2012 | Optoma PK301 Projector

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