Question about Sony KDF-42WE655 Television

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Black spots on the screen

Problem started with a small unmber of black spots on the screen which gre into many. Many the screen is very dark when first turned on then evetually it brightens. Last night I heard a pop then the screen went blank and the green led started to blink.

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CHANGE OPTICAL UNIT BLOCK COMPLETLY

Posted on Apr 22, 2010

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Black spots laptop screen


Pinpointed spots can be damaged pixels that no longer light up when energized. They cannot be repaired and you will have to live with them, or get a new display. Try to use the Color Adapter port to a standard LCD Screen. On the side of the computer is a small 9 pin (usually blue) port whereby you can attach a desktop monitor as an alternative to the LCD Panel on the laptop.

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Display half of screen


screen back light on the other side is busted which need replacement.

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My camera has developed small cluster of dark spots on the LCD screen interface, the pictures however are fine with no such marks when developed or viewed on any other media device. At first, It was one...


Mine has been doing this too! The spots are getting so large that it covers 1/4 of the screen. I'm sending mine in to get repaired because it came with a 1 year warrenty.

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Red Lines through picture when screen is dark, back ground has a red tint. On my 48 "Sony Rear Projection" TV


You can try adjusting the Red color output. (Very touchy adjustment)

If you take off the front cover/speaker cover, there should be a access panel. Behind that, there should be a small square black box with 6 screws on it. This is the focus block. (At least this is where most of them are located)

It sounds more like you may need less red in the mix. There is a screw for each color. R, G, and B. Do not mess with the focus screws, just the ones labeled 'SCREEN.'

Go to an unused input where the screen should be dark. Barely turn the red down in a dark room so that the red spot is at the same level as the Blue and Green.

Use an insulated screwdriver and DO NOT TOUCH the focus block and ESPECIALLY NOT the back of it.
Very HIGH VOLTAGE. I found that out the hard way.

Do not turn any of these up too high or damage may occur and the TV may detect a short and shut off.

I have found that if the three colors are adjusted in a dark room to where the 3 color spots (R/G/B) are just barely visible on the screen at equal levels, there is a pretty good color balance.

I hope this helps! Just be careful.

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Having a big yellow spot background in the middle of the picture.


Hi , it seems you are experimenting a light engine problem.Here's how your tv works: http://www.youtube.com/watch?v=ZLLHnQ4y-wo Basically there's 3 LCD chips that create the colors and image by blending together.When these chips start to melt you will get those blue spots, pixilation even vertical lines.You will need to replace the light engine. Have a blessed one!

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Wonderwall projector has black spot in middle of screen


Tranlucent dark spot on Optoma image. Looks like something is on the lens.Off center--top to bottom. Cleaned lens, blew out case, changed bulb, still with dark spot.

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1 Answer

Screen gets hot and turns black on the bottom right


There are many causes of this. On cause can be the Cold cathode fluorescent
tube itself. This is a grossly misnamed device as the cathodes get very hot
indeed. One of the tube failure modes as they wear out is that the cathodes
can get much hotter than normal, and this affects the screen near it.

Jun 24, 2009 | Dell Inspiron 6000 Notebook

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Some black colors are replaced with red blue flickreing in whites


Hi there
Firstly reinstall the graphics drivers, if its still the same there is a problem with the graphics card and you'll have to have it looked at.

Good luck and thanks for using Fixya!

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1 Answer

Dark spot in centre of screen.


I have a little dark spot that i noticed it today too on my canon SD870IS i hope somebody can tell us what's the problem

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