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Posted on Jan 25, 2011

Screen has cloudy blotches that I am sure is dust on inside. Can it be cleaned??

3 Related Answers

Anonymous

  • 294 Answers
  • Posted on Mar 07, 2009

SOURCE: Faint blotches all over screen noticable on white

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

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Anonymous

  • 1 Answer
  • Posted on Jun 28, 2009

SOURCE: 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

projdoc

jasbo

  • 2239 Answers
  • Posted on Jan 27, 2010

SOURCE: have purple blotches all over the screen. how do

open the back and blow it out with canned air and use the vacuum hose to catch it. do not use anything on the mirrors except air.

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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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If this is the model with a light engine, then there lies your problem. Your filters in the engine are burning up. The light engine will need to be replaced. If this is an older model with the 3 tubes you might be able to adjust your red green and blue tubes to get the picture back in good standings. Please keep in mind when asking questions to include both the make and model number. This will help us help you more efficiently.
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Red blotches

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Dark Blotches

This is probably caused by dust, either on the mirror, lens, or possibly inside the light engine. There is a 5" dia hole on the side of the back of the tv where you can take out one screw and take the door off. this is just big enough for you to put your hand through to clean the mirror and lens. Hope this helps.
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Dark Blotch on rear projection TV screen

usually these are caused by cleaning the screen with a damp cloth or fkuid rear projection tv's usually have two plastic screens separated by about quarter inch with bulbs between,one being a magnified screen.problem is,condensation can occur causing various blotches,letting the screens naturly dry out usually solves this but failing this you have to strip down and wipe them with clean dry cloth.be careful though the inside screen is very delicate.
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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.
0helpful
1answer

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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