Tip & How-To about Televison & Video

Sony KP51hw40 etc with Blue screen and or Shuts down

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 todeal with this first----the set has a black plastic block with sixcontrols---three are Focus(red,green,blue) the other 3 controls are Screencontrols(red, green, blue)

Someone has to remove the entire piece on the frontof the set below the screen(usually a plastic part) most of the time it issecured with 3 screws on either side of the set in the back; once you removethe screws the entire piece should pull out(pull from right to left(it will notfall off or come out easy--it is held in with several large plastic pegs) Withit removed there is an inspection plate with 4 screws-----the screen/focusblock is behind it.

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

If this cures the problem you may only be buying yourself some time----if theblue picture tube is bad sooner or later this trouble may return----I have seensets where this was adjusted and the set worked for a year or more with norepeat 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

Posted by on

Televison & Video Logo

Related Topics:

Related Questions:

1 Answer

flashes green yhen shuts off


Many of these sets had 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 leftto right will be marked screen------YOU need to locate the Green 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 green screen as well as the input number turn the Green SCREEN CONTROL SLOWLY TO THE LEFT UNTIL THE green is gone.

If this cures the problem you may only be buying yourself some time----if the 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 thetube 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 14, 2009 | Sony KP-65WS500 65" 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

After turning on it has normal color then turns blue slowly. what do I do to fix it. Is it the bulb?


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 frontof 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 videoinput 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 09, 2009 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Screen goes all blue


if it is a KP65ws500 it is one of a group of sets made by Sony where all the picture Tubes(set has a RED, Green, and Blue Tube.) ARE BAD. Most of these sets had all three tubes replaced during a program Sony had. The tubes are NO LONGER AVAILABLE---the only way to get one is remove the tube and send it out for rebuild---most of these cost about 250-300 just for the tube.

The set is shutting down because when the screen goes bright blue it detects one of the CRT's(tubes) is pulling way to much current.

The problem with Replacing your Blue Tube is cost and----sooner or later the other two(red and green) are going to fail also.

best advice is maybe not to fix it.

I replaced dozens of the tubes in these sets when Sony had a recall and provided the tubes for free and paid for the labor etc.

I know I am not giving you good news but I do this here for free and if this has been helpful give me a vote here. Thanks!

Aug 20, 2009 | Sony KP-65WS500 65" Rear Projection...

1 Answer

green picture


The red tube is bad . There are three crt tubes in set red green and blue. your red tube is bad. cost if you where to bring it in to tv shop would be around 450.00 and tubes
are sometime not in stock anymore..


i hope this helps doctor video

Apr 21, 2008 | Akai PT5598HD 55" Rear Projection...

Not finding what you are looking for?

346 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74136 Answers

Cindy Wells

Level 3 Expert

5102 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Loading...