Question about Mitsubishi WS-55819 55" Rear Projection Television

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I have a Mitsubishi 55 inch rear projection tv, ws55819 on which the convergance is gone bad. I'm getting a concave picture with multiple colors and black lines with a blurred picture. this happens mutiple times a day at any given time an for the most part it subsides on its own then comes back again. Repair shop estimates are $340-420.00 Can I replace the convergance chip? If so, where do I get them and how do I do it? Is it worth the cost and effort for a 7 yr. old TV?

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Your reference to concave picture suggests a high voltage problem and not convergence. If the raster can't scan from left to right , top to bottom, your having High voltage trouble. if your colors are not dropping on top of each other that is convergence. I would suggest it may be time to consider a purchase of the new HD set for the cost of this repair. good luck

Posted on Jul 03, 2009

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THE PICTURE GET BLURRY FOR A FEW SECOND THEN GOES BACK TO REGULAR..IT IS A 55 INCH MITSUBISHI TV REAR PROJECTION...IS TIS EXPENSIVE TO FIX?


Yes,the shop will cost u $300 for parts and labors. Convergence problems,the 2 convergence ICS it well die,just not dead yet.Problems will be blurry,color misalign,3 D look,when the 2 convergence is dead.

Feb 06, 2010 | Televison & Video

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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
*Colors wont align
*Screen may look distorted or warped
*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
*White looking picture
*Halos around objects
*Red/Orange looking picture

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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1 Answer

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Have convergence IC's replaced. I believe this unit uses STK-392-570 convergence IC's Only one has gone bad but replace them both, because if one has failed then the other is not far behind, for Blue and Green. One handles Red, One handles BLUE and Grn. There are only two of them in the set, They are the two largest IC's in the entire set.

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I have a Mitsubishi 55 inch rear projection tv, ws55819 on which the convergance is gone bad. I'm getting a concave picture with multiple colors. Repair shop estimates are $340-420.00 Can I replace the...


Yes you will need to replace both of the STK392-570 Convergence ICs and the two 5 amp pico fuses. You can get the parts at the following link and they provide instructions with pictures that show how to do the repair. Heres the link'
http://servicemanuals.vstore.ca/

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1 Answer

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it sounds as though your convergence board is going out or gone out

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That is an easy fix. There are bad solder joints in the convergence unit and line stage. For an experienced engineer, about 20minutes will find them all.

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that happened to me and i just gently hit it on the top and it fixed itself

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1 Answer

My RCA Tv has a concave picture!!!


Convergence problems. FIrst try going into customer setup and seeing if convergence options are there and if adjustments can be made. unfortunately when the picture is bowed like that it idicates a complete loss of convergence which idicates one of three boards have gone bad.

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Model VS-45501A  probably not worth fixing at around 400.00
for a convergence circuit overhaul......T.

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