Question about Sony KP-57WS500 57" Rear Projection Television

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Convergence? screen has a concave look to it (curve is higher in the middle) Red color is higher than Green color

Posted by nicka4 on

  • cshearer6 Dec 03, 2007

    I'm having the same problem with mine. The red and green hues as well as the concave part in the middle of the screen. Help!!!!

  • treats Dec 15, 2007

    have the sony p-57ws500 and it has red and green lines in it and after about 40 minutes it turns blue.....help its a good tv it just needs help....
    where can i get the piece to fix it myself

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Circuit board with STK convergence IC's must come out .....
Replace both IC's, reassemble...test........................
IC's mounted on large heatsinks.............T.

Posted on Dec 03, 2007

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The picture projects the image with concave lines on the edges. I'll explain further: somehow the picture is distorted in a way that bends the four edges of the picture in a curved-concave manner so that...

Projection sets have two very common problems.

The first common problem is convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou 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
0helpful
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The picture looks 3D

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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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. See below for a 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
0helpful
1answer

My Sony Projection TV middle of the screen curves down on top and curves up on bottom. Picture looks dubble like 3D, screen looks like concaved. Left side of the screen color is light green and blue, right...

This is a very common failure on Projection sets. Its called a convergence problem.
You may have one or more of the following symptoms.
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.
No Audio / No Video - Makes Chirping Sounds
You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
1helpful
1answer

RCA 52 in HDTV red, green and blue colors not alligned - concave

That repair only repairs the issue of the convergence option missing from the on screen menu. If thats what your problem is then the ITC222A convergence option missing repair kit at the following link should repair the issue. The kit contains the fl231, DL231, CL230 and the CD with detailed instructions.
http://www.tvrepairworld.com/
0helpful
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Colors have seperated on tv, and curve

You have a convergence problem.
Maybe need change the IC of convergence, or the power supply of these parts.

Bye.
0helpful
1answer

Red green and blue lines rca 52' rear proj.

your convergence powert supply is not working-
replace the supply or repair it
0helpful
2answers

Screen lookes like colores separating

This is what is known as convergence. a projection tube ussally has three picture tubes.. red green blue. they all have to align. the concave picture indicates complete loss of convergence or convegence power supply. First question on these sets Do you have the convergence option in the customer menu under setup. if you do not this is a indication of the common "FL231 fuse problem" and inexpensive simple repair. I have wrote and artilcle on this under my tips and trick section. If you do have the option then next does autoconvergence work. in you case i would not think it work. under blue and red manual convergence does the crosshairs move. if not then this is indication of convergence power supply board. if they move at all this may indicate a convergence amplifer problem.
0helpful
2answers

Picture has 3 images, all different colors (red-blue-green) screen looks concave in the middle top & bottom

This is what is known as convergence..(very common)... first question DO you have the "CONVERGENcE" option in your setup menu?.... if you dont there may be a special fuse issue... if not then more than likely it is what is known as convergence power supply issue. you have complete loss of convergence?
0helpful
1answer

Red Blue and Green colors are not aligned and looks concave

replace fuse looks like cap next to flyback transfomer FL231 it will be the one in the middle.there are 3 of them next to FBT.
0helpful
1answer

Uh oh... the colors are curved and wacky

replace the amplifier IC chips for the convergence.  part # stk392-???  could be from 040 to 120..  90% chance that'll fix it.
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