Question about Mitsubishi WS-55805 55" Rear Projection Television

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Blurry Image problem with Mitsubishi WS-55805

I've had this tv for about 8 years now. Recently, the TV has been having trouble keeping focus. Text on the screen will move back and forth from being blurry to non blurry. This does not appear to be a convergence problem, and there is no haloing/ghosting. There are also not any blue/red outlines. The "blurry" effect is with any color. The Image is simply blurring. Additionally, the screen seems to flicker. When the screen refreshes do to a new "screen" coming on the TV, this seems to force the TV to refocus and the picture will be ok for a while before unfocusing again. Thoughts?

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  • nshaner Aug 15, 2007

    nathandshaner@hotmail.com

  • grandbeat Feb 05, 2008

    I have a 14 year old Magnavox big screen tv (model# FP4630) and it has a slightly blurry picture. Actually, you can't really tell the picture is blurry unless there is some type of text on the screen - like the score of a football game. etc. I've tried the convergence stuff, but no luck. What do I do? Thanks. Neil - grandbeat@yahoo.com

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Hello, if you want I can supply you with the service manual, please leave your email. Best regards, Arpi

Posted on Aug 14, 2007

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Check the connections for firmness. If the converter works properly, there shouldn't be any problem other than this.
http://electronicshelponline.blogspot.com/

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May 17, 2009 | Mitsubishi WS-55859 55" Rear Projection...

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I have a WS-55805. Was working great, then suddenly no picture, just audio. When I press the Menu button, I get the menu but I see three separate colors for each menu item. Could this be the lamp, or...


This TV does not have a single lamp but a set of CRT tubes.

If you get menu displayed on wrong clors or colors are not matching then it is either a bad CRT, a bad CRT high voltage power board, or sometimes a problem with convergence board and convergence ICs, however in this last case you usually get no picture and no sound .


You can get service manual from link below:

Mitsubishi - CRT Projection Television - WS-55805 Service Manual

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My ws 55805 yr. 2000


check this site first
http://www.chrisandnat.com/Projects/BlinkingTV/blink.htm
if you dont have this in your set then
check convergance amp ic.
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

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I had the same problem with a WS 55813,2004 model.Paid 130.00 for local Mitsubishi authorized dealer that told me I needed a new DM module at an additional 505.00. Called Sears and they repaired the board for 146.00 by replacing four capasitors on the board. The tech said there is an exolaination on the web that explaines how to do this. He said this is a very common problem and carries 8 caps with him.He even had to do this to his own tv. The caps are worth 8.00 total.

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1 Answer

Display


OPTION MENU "MENU 1270" SERVICE MENU "MENU 1257" CONVERGENCE MENU "MENU 1259, 4 FINE, 5 COARSE, 6 MISC

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