Question about Sony Grand WEGA KF50WE620 Television

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Faint blotches all over screen noticable on white and light colored backrounds. Can this be dust behind screen?

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  • Shahid Electronics
    Shahid Electronics May 11, 2010

    What is exact model of your Sony TV?



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YOU COULD HAVE DUST IN YOUR LIGHT BLOCK OR ON YOUR MIRROR

Posted on Mar 07, 2009

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1 Answer

KF-50WE610 blotch of color on screen


Either dust/dirt inside (unlikely but possible) or a damaged optical light engine--Google the model number with "problems" etc.

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I have a sony 50WE655 50" rear projection


i think yours projection t.v mirror are damage

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Rca scenium 50 inch dlp. i now have 3 black blotches in the screen. they look like giant finger print smudges. very noticable on light colored screen.


You have a problem in the light engine portion of the set. Somewhere in the optics. It could also be a build up of dust or a foreign substance. Have a repair shop give it a good cleaning inside. You may want to pull the bulb and make sure there is no foggy places inside of it. Thanks

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Blue streaks and faint blue blotches on screen


The Optical Block / Light Engine is the problem. Very expensive repair / over $1000

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1 Answer

LG RU-44SZ51D 44 in - Gray Spots being projected


First trying cleaning off dirt /dust if after you do this and you still see spots then you could have a bad color wheel or bad light engine.

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1 Answer

Dark blotches / Dirty behind screen


it could be dust in the mirror or in the optics,in this set if im not mistaken you have acces to the mirror from the back, anywhere from 12-20 screws it sould be easy to remove plastic cover first and the the mirror.this mirror are very delicate you dont want to leave fingr prints on it it will show just like the dust is showing right know. taking the mirror off will also give acces to the lense.
use someting soft to clean it.
hdtvman.

Dec 28, 2007 | Mitsubishi WD-62528 62 in. LCD Television

2 Answers

Dark blotches behind the screen


When I had this problem with my 52525 I cleaned the bulb with a lint free cloth. The dark blotches went away.

Dec 28, 2007 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Purple blotches


Ok, so I'm about to flip a lid with my TV. I am showing purple quater sized blotches all over my screen. I bought it for a discounted price because of this issue, in hopes i could fix it. I took the back panel off the TV. ( about a 6in * 6 in plate) removed the light bulb and cleaned the bulb and lens, where the light bulb faced. I used a dust cleaner and special cloth. NOTHING! I took the entire front screen off cleaned it and then cleaned the mirror and second lens.... NOTHING! Then i heard that dusk sometimes gathers behind the lens and that should be cleaned. Try this, Its 4 screws, just be careful and remember the way you took it out, because it has to be replaced the same way.

Lindsey <3 AZ

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