Question about Mitsubishi WT-46809 46" Rear Projection Television

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Picture problem When tv is first turned on the three colors are seperated causing a concave effect and can last up to a hour then it straighten out. Is there something I can do or is repair called for?

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Re: Picture problem

Convergence circuit repair = replace STK392-570 IC's....
Located on center circuit board on heat sinks................T.

Please rate this solution............

Posted on Nov 13, 2007

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Turns off after 30 seconds

i think the convergence amps are weak, or the akb circut has caused the tubes to go bad, google your model number to see if it is in the tube problem. sony made some projos w/ bad tubes in them. tv lasts only three or four years,no cause i had one

Jul 10, 2009 | Sony KP-65WS500 65" Rear Projection...

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Sony KP-53XBR35 TV Concave top & Bottom in wide screen, along with color distortion around sides

thats usually a convergence IC failure, Are you able to move the red and blue colors in the convergence adjustment menu?

Jul 14, 2008 | Projection Televisions

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Red and blue colors go across the screen. picture looks concave.

Greetings joanne7,

The issue you are having could be caused by your television needing the convergence adjusted. During production your televison has the three picture tubes that are converged to form a single image on the screen. Over time these can come out of adjustment.
If you go to this link and check pages 57 and 58, it gives you a very detailed guide on adjusting your convergence. I am aware this model number is slightly different than yours, but I own a 47" Mitsubishi and this is the exact procedure we use to do our convergence so I am confident it is fairly universal.

I hope this helps!

Go Ahead. Use Us.

Jun 25, 2008 | Mitsubishi WS-65907 65" Rear Projection...

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.

Dec 21, 2007 | RCA HD52W56 52" Rear Projection HDTV

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Mitsubishi projection tv

I have a similar problem. I have tried to fix the convergence via the remote and that has not helped. My three colors are separated and the edge of the picture is bent in toward the center. I am going to try a hard reset but i suspect the convergence IC are fried. Since the set is not HD, I will probably replace it if the hard reset does not work.

Nov 22, 2007 | Mitsubishi VS-50501 50" Rear Projection...

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Rear projection set

Convergence circuit repair = replace STK392-570 IC's........
Located on center circuit board on large heat sinks........T.

Please rate this solution...................

Nov 07, 2007 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Three seperate colors on Screen

Screen may have a hair line crack in it causing projection to be distorted. Inspect screen very closly with magnifying glass if necessary to insure no cracks. If crack is found replace screen.

May 18, 2007 | Zenith R40W46 40" Rear Projection...

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