Sony KP-51HW40 51" Rear Projection Television Logo
Posted on Aug 14, 2010
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The red color seems to be sperating itself from the actual picture. The logos on screen are showing up as double image. pls advise what could be the problem

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  • Sony Master 3,459 Answers
  • Posted on Aug 14, 2010
Anonymous
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Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

The red color seems to - 42d3683.jpg

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The red color seems to - e87380c.jpgsrc="/uploads/images/e87380c.jpg" alt="e87380c.jpg" class="h_mi" />
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. SeeThe red color seems to - 69189a5.pnga fix

69189a5.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Related Questions:

0helpful
1answer

Image is showing double on the screen. The entire screen's images are doubled and overlapping over themselves. Some color distortion obviously as well. Images basically aren't lining up. The red color...

On Rear Projection TVs there is a thing called "convergence" in which the color bands are lined up so that they can mix to make the colors that we see on the screen. When a TV of this type is moved or bumped around, or even near a source of electrical interference it can throw this out of alignment. Many TVs have options in their menus to set convergence.

I believe it is under Menu > Picture > Convergence I'm having trouble finding the exact process used for this, but it will be noted in your user guide as well.
If this does not resolve the issue you may need to purchase a convergence repair kit which requires a considerable amount of electrical knowledge and can take several hours to repair.
1helpful
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The picture is showing a double image and is distored.

The problem you are refering to is more than likely a convergence problem. The convergence circuit in your tv is controlled by an IC (integrated circuit) stk392-110 and it makes the 3 colors (red, blue, green) line up/converge together to create a clear picture. You'll know when this part needs to be replaced because the picture you see is 3d looking and possibly bowed on the top or bottom or on the sides in any or all 3 colors.
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Model# AV48WP30 Picture show double vision. Colors cant be adjus

you need to replace the convergence ICs and associated resistors you can get the repair kit at the following link for your model which contains the two ICs and all the feed resistors plus step by step instructions with detailed photos how to do the repair. Heres the link to the kit for your model.
http://servicemanuals.vstore.ca/product_info.php/pName/av48wp30-convergence-repair-kit/cName/convergence-repair-kits
2helpful
1answer

Color adjust

Greetings!

Adjusting the picture tubes is a scary proposition, but since you have already done it...
The easiest way to balance the gray scale is to turn the color all the way down on the set. The next part is easier with two people if the screen controls are on the back of the set. This is the part you saw that has six small knobs on it. There are control for the focus of the red, gree and blue and for the screen level of the red, green and blue. You will want to adjust the screen controls in an effort to get the picture black and white (this is why you turn the color down), hence the term "gray scale". Just make slight adjustments, take your and be patient. It will take some time, but you will get your picture balanced back out in time.

Hope this helps!
Rob
1helpful
1answer

Toshiba TP50G50 Theaterview picture is double with red color only

Your alignment is off. Go to the set up menu then convergence. hit right and you will be in the convergence menu. select the color that is not in alignment. The green line does not move. if blue and green are lined up the line will be cyan. if red and green are lined up the line will be yellow. when all three are lined up the color will be light. Best of luck!
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I have a red and blue shadow in my picture

i think you need a new convergence board they rin from about 88.00 to about 140.00
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I have 47 inch with double color in picture, reds and green

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

convergence amp ic bad
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Problem with color

Yes you have a problem in the red crt driver board. Most likely the driver transistor is failing. This is a component level repair, so if you have no experience with TV repair, play it safe and call in a trained tech to assist you in this matter. Good Luck
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