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Posted on Oct 19, 2010
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I have a Mitsubishi HD1080 46 inch TV. The projection shows a concave picture and there are red and green outlines like a 3D image but without the glasses. This problem has come and gone in the past now it is just staying like that. I have removed the back panel, and checked to make sure all bulbs are lit but have not done anything to fix it. I tried to reset the convergence but that did not help. Any help you can give will be appreciated. Thanks.

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  • Posted on Dec 02, 2010
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I have the same problem. At first I thought the TV just needed some warming up because after a while it would resolve itself. Now, even after hours of being "resolved" it will occassionally revert back to the concave image! Have you gotten any feedback or resolution?

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1answer

Picture looks concave and 3D. The convergence is wacky and can not re adjust
All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

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. In some cases the TV will also not show any video. 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 pics of convergence problems.


7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here
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Jan 20, 2011 • Mitsubishi VS-55601 55" Rear Projection...
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Looks like convergence is off. picture is curved with red and green outline. looks like 3d without the glasses.
your right convergence is off
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The problem you are refering to is more than likely a convergence problem. The convergence circuit in your tv is controlled by an IC (integrated circuit) stk392-110 and it makes the 3 colors (red, blue, green) line up/converge together to create a clear picture. You'll know when this part needs to be replaced because the picture you see is 3d looking and possibly bowed on the top or bottom or on the sides in any or all 3 colors.
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Have Sony KP-57ws500 rear projection i had the bulbs replaced 3 years ago now itseams as if everyting is out of focus.images outlined in green and red.
Hi,
It sounds TV got convergence out ICs failure problem and causing 3D image or outlined picture.
There are 2 convergence out ICs mounted on D board in TV that need to be replaced.
Let me know if you need part number of ICs if you want to replace by yourself or call local Tv tech to fix it.
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Dec 04, 2009 • Sony KP-57WS500 57" Rear Projection...
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Picture is messed up
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Jun 12, 2009 • Televison & Video
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The colors are distorted and it seems like the only colors that really show are blue, green, and red. When you turn the TV on you can see blue, green, and red lines across the screen. The picture also...
Hi there, this is what we call in the industry convergence board failure. this board regulate the rgb and keeps everything in order so the picture looks nice and clean. when this board starts to malfunction, what you are witnessing is usually the result. I suggest repairing this convergence board. this will fix the 3-d effect.
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Double image - colors out of sync, concave image
bad converage ic's, check reisters around them and fuses for -&+VCC
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Concave Images with pink and green colors
you can get it your tv fix the problem is in the IF amp and video circuit.a convergence will also be neeeded.the tv is old but can give you some more life call a tech they will be your tv doc.
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Apr 03, 2007 • Sony KP-57HW40 57" Rear Projection...
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