Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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I have a sony rear projection KP-46WT500 my problem is I have a yellow arc of color in the upper left corner that goes to about the middle of the screen and never goes away. I would like to keep the TV if a fix is not that costly. Any advice would be great. Thanks, Scott

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Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

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. 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.


I have a sony rear - 7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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.


TV set after flI have a sony rear - 65af323.jpgbr />


69189a5.pngSOLUTION

You 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

Posted on Jun 02, 2011

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My Sony KP-46WT500 has a yellow arc of color on the upper left side that never goes away even with plug in devices like Wii. It started about 6 months ago and has gotten worse over time. What can I do?...


Very common problems,through out the DLP tv life cycles could happen again again until end of the tv life itself.The tv have a problems known as a convergence picture problems,it is dead.Tv have any colors lines like R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?Yes?Than the tv convergence board it is dead.The tv convergence board must have it components parts replaced like 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The Shop will cost u like $300-350 for parts and labors.

Aug 03, 2011 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Discoloration in the upper left corner of the screen. It appears on all video modes.


This is a very common failure on Projection sets. Its called a convergence problem.

You may have one or more of the following symptoms.
  • 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.
  • No Audio / No Video - Makes Chirping Sounds

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 17, 2009 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Convergence issue


You need to replace both STK392-560 convergence ICs and some of the 4.7 ohm 1/2watt resistors. You can get replacement ICs and resistors at the following link with free instalation instructions.
http://servicemanuals.vstore.ca/

Jul 23, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Help


You need to have the convergence IC's replaced. A repair like this should run you about 300 bucks or so. In most places.

Apr 27, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Video Source Text remains in upper left corner of screen (video 1, video 2, etc)


If you have the original remote control, press display to get rid of it.
Hope it works.

Mar 10, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Power surge may have blown tv- Sony KP-46WT500- worth fixing?


Take a look at my post on Convergence IC replacement..Thank you GURU JAY

Feb 18, 2008 | Sony KP-46WT500 46" Rear Projection...

2 Answers

Sony TV KP-46WT500, 46" Rear Projection TV , colors mixed up


You have a pair of Bad STK392-560. replacing these will definitely fix the set.
09797bb.jpg

Best regards
CircuitCity

Dec 19, 2007 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Color is messed up


sounds like bad convergance ic
http://www.techlore.com/forum/thread/18970/Sony-KP-46WT500-Convergence-Repair/

Dec 14, 2007 | Sony KP-46WT500 46" Rear Projection...

1 Answer

COLOR


Some people have a scale on their T.V. somewhere, or for most cable users it shows on the menu an area where you can change contrast, color, tint, brightness, ect...

Dec 08, 2007 | Sony KP-46WT500 46" Rear Projection...

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