Question about Mitsubishi CS-35707 35" TV

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Mitsubishi 55511 picture bowed on sides

I have a Mits projection TV 55511 whose picture has begun bowing in on the sides, for a couple of months or so now. It is progressively getting worse as time goes. The picture is now bowed a foot or so on each side. At first, it quickly stretched back out to normal but as time goes by, it takes longer and longer for it to stretch back to normal. Any ideas on what is causing this? I'm a former electronics tech, micro-min certified, but haven't done any display troubleshooting for 20 years and don't know where to start on this. Any ideas are appreciated.

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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 projeciton 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.

Mitsubishi 55511 picture bowed on sides - 42d3683.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 conMitsubishi 55511 picture bowed on sides - 69189a5.pngur need to fix it. See below for a fix


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Posted on Jun 06, 2010


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