Question about Vizio L32 32 in. LCD HDTV

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Light blue line from top to bottem

Its happened to me twice ive found just lightly taping the screen on the line fixes this but is there a real solution?

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This problem sounds like it is the connection cable for the LCD controller (TCON) board. Someone knowledgeable about electronics can take the back off the set and carefully disconnect the LCD controller from the LCD panel and carefully reconnect it. Try the set before you replace the back to verify it works ok before replacing the back. You may have to try this several times. The flat ribbon cable seems to alway cause problems.

Posted on Mar 05, 2009

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Posted on Jan 02, 2017

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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.

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Here are some photos of convergence problems.

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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 will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
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