Question about Panasonic PT-51HX41 51" Rear Projection Television

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Hi, have a 50 inch rear projection Mitsubishi. The problem is that the picture is curved and some of the words around the edges are doubled. Its most noticeable when watching sports because the score board is bent so bad and numbers doubled. The weirdest thing is on a few days of the month it works perfect, but most of the time its pictured is curved. Thanks!

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Power transistors in the convergence circuits on this series TV go bad after several years, making the wavy lines around the edge of the screen and 'doubling' of the edges of the text in varied colors which do not converge. Professional repair is required unless you are brave enough to tackle the project yourself and follow some rather simple instructions, buy a few tools from Radio Shack, and save yourself about $500 bucks...which I did on my own 42" Panasonic rear projection set.

Posted on Feb 09, 2009

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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
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*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
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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

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Here is another similar problem with a Mitsubishi Rear Proj. TV and it has some things to try and an estimate if that is the problem.

"Cost of convergence repair is always around $400"

http://en.allexperts.com/q/TV-VCR-Stereo-1749/Mitsubishi-WS55511-Projection-TV-1.htm

You could also try messing around in the menu for convergence adjustments. Usually it will let you adjust at 8 points on the screen.

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You have a convergence problem.
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Bye.

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Look for your Convergence amps and check the solder connections on them....you may only have to resolder the amps...and if they fail in a couple weeks, then replace them...

If you don't beat up the convergence amps for WEEKS operating them with the bad connections, they can survive...

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for how to repair please click the above link

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