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

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Blue screen no picure good sound

I have a 52 inch projection from 2002 after it is on for a while the oicture 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.

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Check your video inputs or cables for wear from the signal your using. Does it do it on other inputs (DVD, game etc??)

Posted on Sep 05, 2009

  • James Brooks
    James Brooks Sep 05, 2009

    Check your video inputs or cables for wear from the signal your using. Does it do it on other inputs (DVD, game etc??)

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1 Answer

I have a old 52 inch sony tv turns on but picture blinks off and on whats wrong


A lot of their older sets (both regular TV sets and big rear projection set had this issue).

In either case it may mean with age the MASTER SCREEN control/s need to be adjusted slightly up---if too dim a picture it will blink.

A model number would tell me what to try.

Models beginning with KP are large projection and ones with KV are regular sets.

Mar 31, 2012 | Televison & Video

1 Answer

Fading blue screen


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

Oct 06, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Blue screen after awhile


This is one of a group that had bad picture tubes(red,green,blue). They are no longer available unless they are removed and rebuilt and that is very expensive.

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.

SD TECH

Sep 20, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

52'' sony tv rear projection turns blue


it sounds like the blue crt is failing Pull the front off and turn the tv on
When it still has a good picture tap the blue crt
if it flashes blue with lines across the screen then you know it is a bad crt

It might not be worth fixing

Good luck


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1 Answer

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YOU CAN TRY TO ADJUST THE COVERSION POINTS USING THE MENU OPTIONS IF THIS DOES NOT WORK THEN YOUR CONVERSION CHIPS HAVE TO BE REPLACED IT COST AROUND 200 TO 250 DOLLARD

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Purple and Blue Spots on Screen on Mitsubishi WD52527 52 Inch HDTV


It could be only dust building up and it needs a good cleaning or it could be the DMD board is going bad and needs to be replaced.

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