Question about Philips 55P8241 55" Rear Projection Television

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Dirty screen How and What do i use to clean the inside of my 55" projection tv screen

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  • mick557
    mick557 Feb 26, 2008

    i have a rear projection tv (Sony KDF-50E2010) and have a dirty mark internally about 4 inches from the top right hand corner.

    how can i dis assemble the tv and what do i use to clean it? thanks

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  • 148 Answers

Http://www.screenkleen.com/index.html That stuff is the best you'll find. Ever. You'll need to take your TV apart to access the inside of the TV. Take the speaker grille off and possibly assembly frame surrounding the TV(They usually snap off) you should find screws under that to further assist with disassembly.

Posted on May 09, 2006

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Posted on Jan 02, 2017

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1 Answer

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If no power the possible problem is the fuse, the power supply detector, power IC. The dirty screen cause by over voltage in your TV. This is due to defective power supply...
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You will need to remove the screws on the back of the top half of the TV set. This will allow you to remove the top rear half of the TV and give you access to the screen. Make sure you do not break the mirror that is attached to the rear of the TV set. Clean the screen with a damp non-abrasive cloth dry with a dry non-abrasive cloth. When finish replace the back of the TV and tighten the screws to hand tightness.

I hope this helps,

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http://www.electron-age-technologies-llc.com

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1 Answer

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Hi. I had the same problem with my Philips RPTV and the fix is extremelly ease. You just need to open the back cover (mine uses torx screws). Inside the tv is very mechanic. You will find the three CRTs and most likely the lenses are dirty. You just need to wipe them off with a soft cloth. Also the CRTs project the image not directly to the screen, but to a big mirror and that mirror will be most likely dirty (like when you open the hot water in front of a mirror). Once you clean the mirror and the crts, your tv will like as the they you got it.

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well . there are 4 things that can cause this..
1= the outer screens could be dirty.clean with screen protector cleaner.Spray on cloth and not on outer screens.
2= outside lenses of picture tubes could be dirty.Unit can be opened .Outside lenses can be cleaned with a lens cloth .Do not use paper towels or cotton as this my scratch surfaces of lenses.
3= inside of picture tubes could be dirty.This should be done by a repair shop only(dirty coolant inside tubes)

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