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The screen on my LCD started displaying a blue color from one side of the screen. Then thousands of little blue dots. Finally there is a circle in the middle of the screen and it looks as if someone sprayed something on it and tried to clean it.

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This is a failing optical block. Contact me for replacement or cleanning instructions. cabledude0461@yahoo.com

Posted on Feb 01, 2010

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Posted on Jan 02, 2017

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I have a 2005, 42" toshiba LCD model 42DPC85 that when we turn it on everything is good except the whole screen is black but imediatly the colors dot by dot start making the black disappear, it only took...


You need a new DLP chip. The chip has little mirrors that are black on one side and white on the other side. When the chip wears out , your screen will turn white one dot at a time or black one dot at a time or they may just all stick shut at once. Since your screen is black, all your mirrors are closed. You can buy the chip from shopjimmy.com and they have a video of how to replace the chip so you can do it yourself. It takes about 1 1/2 hours. The chip is about $160. To have this service done for you is about $200. Do it yourself and save the money. Your tv will be just like new again. Just make sure the chip is in perfectly level or when you turn your tv back on, your picture will be slanted. you won't notice it on the picture itself but words on the screen or scrolling messages and the menu will be slanted.

Feb 10, 2014 | Toshiba Televison & Video

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Image is bright but there is a slight issue - on the left hand side a purple line displays vertically. Anybody knows why is this fault appeared and how could it be solved.


There is three LCD in the projector red, green and blue. If green LCD make any fault mean line or dot or dots then screen show these line or dot in purple color:
If line is very straight and sharp edges then green LCD is faulty and need to be replaced.
If line is not straight and faded edges then some thing in LCD block so your projector need service

Feb 22, 2011 | Sony VPL PX40 Multimedia Projector

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Blue dots on screen. what is it and can it be fixed? a new bulb was recently installed.


Yes,it is repairable.Blue dots on screen is sign of LCD failure at optical block assembly. There are three LCD on the optical assembly RED,GREEN and BLUE. Blue LCD failure causes blue dots on screen. Repair should be done by replacing blue LCD. Note! LCD replacement needs Extra care and precise tools such as oscilloscope and color pattern generator , for the color alignment after replacing LCD. But if you can afford, replacing the optical block is better,

Sep 26, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

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What does it mean by dead cells?


I assume this is related to your LCD monitor.
I think you mean dead pixels. The LCD monitor has tiny pixel elements, one for each red, blue, green color and each one of these colored pixels are turnes on by a transistor. When a transistor fails then the colored pixel it controls does not light up. This is a dead pixel and it shows up as a tiny black dot.
If the screen displays a blue screen, a dead blue pixel will appear as a tiny black dot in the blue screen.
You normally would not notice a few dead pixels unless they are grouped together.

Sep 20, 2010 | Hanns.G Corporation HW191D 19" LCD Monitor

1 Answer

Samsung syncmaster 914v monitor problem. right side of display is darker image. can see dots like a newspaper print or looking through a screen. when display is black it almost appears like an image is...


This is likely the LCD panel itself - you are describing a left/right image error that can be only created by the left/right division by the LCD driver wrapped around the outside of the LCD panel.
If your monitor uses a separate circuit board to drive the LCD, it could be this driver board.
Either way, it will require an LCD panel - $$$

Mar 29, 2010 | Samsung SyncMaster 914V 19" LCD Monitor

1 Answer

My nokia display screen looks black on one side and colored dots


your display has broken.lcd are made of glass,its easy damage when phone is droped.must change display in service

Dec 07, 2009 | Nokia 6300 Cell Phone

1 Answer

Water in LCD display


Once you get a dead pixel (black dots), there is no way to repair that part of the screen

Sep 20, 2009 | Computers & Internet

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I believe that my display module is flawed


the problem is its a lcd liquid crystal leak you need to replace the lcd you can get them from dell.com

Apr 07, 2009 | Panasonic Toughbook CF-51 Notebook

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Dell W3000 display issue - band of red dots on the left side


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Mar 11, 2017 | Dell W3000 30 in. HD-Ready LCD Television

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