Question about RCA P46812BL 46" Rear Projection Television

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Help me please

I have the same problem the top and bottom of the screen bow in and the colors are off line if you turn it off and on it fixes it sometimes

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  • Anonymous May 13, 2008

    i have a rear projection tv and the picture is bowing from bottom and top what do i do

  • fixitmum May 11, 2010

    what about the three bulbs that connect to each color projection are they supposed to be lit up? mine aren't,if they are.



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Sounds like you have a convergence power supply failing due to heat,from the back of the set,make sure to unplug set first and remove back cover,on the right side abouve the main board the is a board mounted on black plastic,on this board is a reg. part number 215530,this ic is most likely the trouble.

Posted on Mar 07, 2008


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1 Answer

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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....
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  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.



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


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.

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able and can solder well,it is possible to DIY...................T.

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Or send to

good luck
please mark the post with a fixya

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If the convergence is missing in the menu in screens,you have a bad reg ic on the convergence power supply the part number is 215530,the power supply is located on the black plastic above the right module with all the heat sinks

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