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

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The picture looks doubled with green and blue. Is this a sign of a bulb burned out? Can you look at the bulb and know which one it is?

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  • 14,553 Answers

Most likely is it is a convergence problem---this model uses two of the STK-392-560 IC'S for this---total parts cost should on EBAY be under 25 dollars.

See attached photos and if your set looks ANYTHING like them, it is a convergence problem.

Let me know if you have questions with a comment here--I am here to help.

If this information told you something you did not know, rate this solution as very helpful as I do this here for free.

SD TECH


The picture looks doubled with - 7c3f5d2.jpg




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Posted on Sep 13, 2010

  • malueg2806 Dec 09, 2010

    Is changing STK-392-560 IC'S something a fairly capable DIY'er can accompolish.

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1 Answer

Tv is yellow orange color what is problem


The model indicated does not have a "bulb" as it uses 3 picture tubes.

Examine the picture with color set at zero---stand back and look= if the screen has a mostly yellow (all or part of the screen) you have bad Glycol in the blue picture tube(if need explanation ask) and a look in the lens of the Blue tube will confirm this.

If able with back off and a small mirror look in each lens--red picture, green picture and blue picture.

If the Blue looks like a floodlight with little or no image--bad glycol in that tube.

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thats a problem with the Blue CRTs coolant needing replacement. If you look directly into the blue and green CRTs while its playing you should notice a bunch of crud inside the lens indicating that the coolant needs replacement. You can get the coolant replacement kit for a phillips at the following link which includes the coolant and instructions
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This is most likely a convergence problem. Does the picture look like 3D? If so, please confirm that the model is PCL541R and I'll rpovide additional details and instructions.

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I have a 56" model that I have had a similar problem. My bulb burned out in <90 days. Warranty was 90 days on the bulb itself. When the TV picture goes out, the indicator LEDS blink on and off.

Here is what you have to determine:

1) First cover the left LED with a piece of paper so that you can't see it blinking. I don't know if your layout is the same as my TV. You may have to switch the paper blocking the LED.

2) Pay attention to the other LED and READ its' flashing code. In my case, the code was 2-3. It would flash 2 times, pause briefly, then flash 3 times. This meant code 23. That indicated the bulb was burned out.

3) If you look in the manual, It does have a code list of some sorts to tell you of the codes and their meanings. Hope this helps.

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It is not a bulb. It is a picture tube. If there are thin blue lines across the entire screen, not just the edges, and the picture itself looks too blue, it means that the blue picture tube is being driven too hard. This could be because the blue screen voltage is too high, the boost voltage on the blue picture tube is too low, or the video output is leaky or shorted. If the picture has what looks like blue arcs and double images on one or more sides of the picture, it means that one of your convergence IC's has burned out and needs to be replaced. These are things that should be tested and serviced by a qualified tech, so allow an experienced tech to handle it for you.

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1 Answer

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Nope you did it! Its the blue tube. Go to http://www.samsungparts.com and enter your model number and look up the tube. I did one last month for someone at techlore.com Are you the same person? Oh well look it up but do you have the proper equipment to replace this tube, as its very dangerous to handle!! They have a tendency to implode and then explode if not handled right.

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