Question about Sony KP-46WT510 46" Rear Projection HDTV

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I have a Sony KP-46WT500 46 in. Rear Projection HDTV. I just replaced the 2 convergence chips and now there is a slight yellow outline, especially to white lettering. Also, an issue that carried forward, the sound disappears after awhile and I have to turn the t.v. off then on again to get it working. Any clues to both issues? Your help is greatly appreciated. Barry

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There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it of and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to stay on with audio until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for 5 mins, then try.

If you aren't tech savvy, this unit needs to go in for repair.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.
http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

Posted on Apr 01, 2011

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1 Answer

How do I correct the problem of red, yellow and blue, triplicate colors blurring on my KP-46T510 46 in. Rear Projection HDTV Television


Its called convergence and this model should use two of the stk-392-560 chips----TVrepair.com sells kits for this based on model number but soldering is involved.


11_3_2012_4_20_16_pm.jpgyour chips are similar to this one but will have different number on them.

Nov 02, 2012 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

I have suddenly have a yellow and blue lines outlineing the charactors on screen. Also ghostlike shadowns,


Replace the Convergence ICs there is 2 of them Big black ICs they will have part number on them example STK392-110 .Also Check Pico Fuses in Front and back of ICs they look like resistors but are Green or Yellow 5amp, 6amp, or 7amp Fuses.
Mats Electronics has STK ICs 1-800-628-1118

Jan 11, 2011 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Screen has red outline


One of possible 2 things. You can go into menu and try and adjust the red convergence settings and hopefully that will take care of it. It possible if it wont adjust that one of the convergence ic chips has failed or could be a weak picture tube. Try adjusting the red convergence and hopefully your problem will be solved. Check you owners manual if you have trouble but its not to hard..

Oct 17, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

BLUE SCREEN My sony KP 46wt500 hdtv ready rear projection has


Ur tv have a problem known as convergence problems.Ur tv convergence board must have it 2 STK convergence ICS and some or all it resistors to be replaced to solved convergencce problems.The shop will cost u $300-350 for parts and labors.

Jun 06, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Have red outline of images on left side of screen


Convergence is dead.Must Know how to solders.Replaced the 2 convergence ICS and all it resistors.Tries Tv repair World.com,Tvrepairkits.com for the convergence kit,to do it ur self.The shop will cost u $300 for parts and labors.

Feb 04, 2010 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Convergence chip part# ?


Hi,
Convergence chip used in Sony KP-51WS510 part number is as follows..

STK392-560 and Sony part number, 874901908

Available in Part Store.
Thanks.

Dec 26, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

WHAT DOES IT MEAN WHEN THE COLORS ARE SLIGHTLY OFF.THE OUTLINE OF THE PEOPLE ARE LIKE A RAINBOW


It means your convergence chips on one of the boards inside the TV is failing. If the set is under warranty submit it now.

Thanks for using FIXYA++++Please rate our help

Sep 24, 2009 | Sony KP-53HS30 53" Rear Projection...

1 Answer

The blu display on my sony 65" tv is arched, making the convergence adjustment in-effective.


its failure of Convergence Out IC chip and requires replacement.
TV has 2 IC chip in convergence circuit and I would recommend to replace both at same time.
Let me know exact model of Sony 65" TV to provide you more technical info.

Mar 14, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Kp-46wt500


the pico fuse are the two little yellow resistor looking things under the heat fins of the convergence chips

Jan 03, 2009 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Blurry Curved Picture


Convergence IC's need to be replaced...change them both..
part # STK392-560.....Check soldered-in fuses...........T.

Dec 25, 2007 | Sony KP-46WT510 46" Rear Projection HDTV

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