Question about Sony KP-51WS500 51" Rear Projection Television

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Fading blue screen

I have a 51 inch projection from 2003 after it is on for a while the picture fades out and all you are left with is sound and the screen is all blue. You can see faint images but not much. I f you turn the tv off and then back on the picture is back but only for a while. 51ws5000

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You may have a bad blue picture tube but there is a way to deal with this first---This is a 2003 model ---I did one of these with the same problem a week ago---the set has a black plastic block with six controls---three are Focus(red,green,blue) the other 3 controls are Screen controls(red, green, blue) Someone has to remove the entire piece on the front of the set below the screen(usually a plastic part) most of the time it is secured with 3 screws on either side of the set in the back; once you remove the screws the entire piece should pull out(pull from right to left(it will not fall off or come out easy--it is held in with several large plastic pegs) With it removed there is an inspection plate with 4 screws-----the screen/focus block is behind it.

You need to look very closely at the block to identify the focus versus screen controls----one row left to right will be marked Focus and the other row left to right will be marked screen------YOU need to locate the Blue Screen control(they are black like the block) With the set on(be careful) go to a video input with nothing connected---if you see a blue screen as well as the input number turn the BLUE SCREEN CONTROL SLOWLY TO THE LEFT UNTIL THE BLUE is gone.

If this cures the problem you may only be buying yourself some time----if the blue picture tube is bad sooner or later this trouble may return----I have seen sets where this was adjusted and the set worked for a year or more with no repeat of the trouble----replacing the blue tube would likely cost you 400 - 500 parts and labor.

IF YOU HAVE ANY QUESTIONS OR NEED ADVICE LET ME KNOW- I am here to help people.

SD TECH

Posted on Oct 06, 2009

Testimonial: "I tryed it and it was all ready all the way to the left.. Nice try anyway.. Thanks..."

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There is one other thing you may be able to do to get the set to function again without replacing the blue picture tube---Reply here to me if you want this information and I will post it here.

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