Question about Mitsubishi WD-52525 52" Rear Projection HDTV

1 Answer

Every several hours the screen goes all blue, and the set turns off.

When the screen goes blue, none of the controls work. After a minute the set turns off with rapidly blinking green light. When turned back on everything works properly for another hour or more. This happens 1 or 2 times every evening. All connections have been checked. The set has been reset..no help

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  • ebehlke1 Feb 02, 2008

    The fans are working, they have been vacuumed and cleaned...no change, I get about 2-3 hours use before it shuts down. Have ordered new bulb as I have had set for 2 and 1/2 years...but signal is solid green. Lamp likely overdue. Is it likely this is an external problem? Thanks

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Overheating in back get fans and clean it out dust before it gets worrse

Posted on Jan 30, 2008

  • nick helpap
    nick helpap Feb 02, 2008

    ya could be light engine it self balest ect cusing the issue

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Dec 20, 2012 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

After the tv is turned on it turns off 3 or 4 times after turning it back on and the screen turns blue for a few minutes before becoming clear. It lasts longer each day.


Many of these sets had problems with bad picture Tubes--they use a red, green and blue crt. Most commonly the blue gives troubles--The tubes are now only available on a rebuild basis--usually not worth doing as the cost is very high.

You may have a bad blue picture tube but there is a way to deal with this first----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 clip_image001.gif 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.

I do this here for free so if this has helped you rate this solution.


SD TECH

Dec 11, 2009 | Sony KP-65WV600 65" Rear Projection...

1 Answer

Tv just turns off while watching it the screen goes blue than turns off


This is one of a group of sets (KP-57ws500) that had bad picture tubes---all of them had this trouble.

The picture tubes are no longer available from Sony--only available on a rebuild basis from another company--very expensive and usually not worth doing---blue is most common tube to show trouble.

The set is shutting down because if the screen goes bright blue---it pulls too much current and the set goes into protective shutdown.

There is one fairly easy thing that you may be able to do-----I have done it before.

What it entails is getting at the Screen/ Focus control block and turning the Blue Screen control down--if it works it may just buy you some time but I have seen several sets where it allowed the set to have some more life.

Usually if the set was working the way this problem begins is you on a blank video input notice a slight blue color in the background with some faint curved lines visable.

If you want to attempt to do the adjustment--let me know and I will tell you how.

I am here to help people----I have seen over 100 of these Sony sets with this problem---replaced tubes in many of them when they were new or under warranty.

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Full Color fading to blue then screen turns off. Repairable?


Here is what you need to do.

1.) You need to remove the entire plastic piece below the front of the screen. You most likely will find 3 screws on either side in back that you have to remove.

2.) The grill will not come out easy, pull from one side and then when it starts to come loose from the other side(there are several plastic pegs that hold it in.) Then from the bottom pull out( most of these sets have square plastic tabs at the top that tuck in.)

3.) With the grill removed locate the inspection plate behind it (it usually has 6 screws.) You will have to tilt the grill to the left and on its side as several cables are connected to it--they are held in place with trash bag like ties that you can release to get some room.

4.) With the inspection plate removed you will see a fairly small (about 3 inch square) BLACK PLASTIC BLOCK WITH SIX CONTROLS-usually they are marked with whiteout so someone can tell if they have been adjusted.

5.) You need to look very close at the block with a flashlight----usually the top three controls are FOCUS--don't touch those.
The lower three are usually marked Screen and if you look very close you will see b, g, r(blue green red)

6.)Usually the blue will be on the bottom left--it does vary

7.) Once you locate the BLUE screen control have the set on and turn it down--if the set is shutting down you may have only a few seconds to try to turn it down---usually to the left with the Blue Screen control.

8.) Best way to do this if the set is on is on a video input with nothing connected--you turn the blue down until the set stays on and then very slowly turn it up until you see a slightly blue screen with or without diagonal trace lines----if you get it to turn on this way turn the blue screen back down slowly until the blue screen and trace lines just disappear.

Let me know if you get it to work--Like I said if it is shutting down you may have to slowly turn the blue screen down a few times to get it to stay on.

I do this here for free and if this helps you at all give me a vote here--it costs you nothing.

Regards, SD TECH

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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 2001 model and does not have a light engine---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.

I do this here for free so if this has helped you take a moment and give me a vote here.

SD TECH

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