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

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Sony KP-46WT500 Convergence

My problem started with colors being separated and the picture was bowed inward at the center. I was told that it was a convergence problem and to replace 2 IC's, part # STK392-560. The problem is still there. I have been in the setup mode and tried to adjust with no success, I can make it worse but not better. It was also recommended that I replace or repair the digital convergence box. I can not find it. I have a service manual but can not find the part. Any ideas on what I should check or replace next. Any help is greatly appreciated. It been fun working on this but Iam ready to move on.

Posted by dcmj on

  • dcmj Aug 23, 2007

    I have checked everything I can find on this board. Everything checks out OK. Got any more ideas



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Try this mate: download the manual from here: you need to get 2 Sanyo STK-392-560 IC', Also do not forget to install a new coating of heat sink compound on the back of the NEW IC's before you install them onto the printed circuit board. You also may find out that after you replace these two IC's, the set has no big difference from what it looked like before. DO NOT DISPAIR! There are probably open feedback or return resistors or Circuit Protectors around the convergence ICs. Take a multimeter and measure the plus and the minus 22volts DC on both IC's. The manual will show you where these points are. You need a low wattage soldering iron, and you can go to and find one for less the 20 bucks. Then you will need some rosin core solder, some solder wick, and a few good hand tools. It is very easy to unstrap the wires going to the chassis and simply turn over the chassis and unsolder the connections., BUT I highly recommend, if you have had no or very little experience unfaltering or soldering on a printed circuit board, this is NOT the place to be experimenting with this. Please call someone who has the experience. Good Luck.

Posted on Aug 22, 2007


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Related Questions:

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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

Colors seperate

Yes, this problem is fixable.
Replace convergence out chips on D board of tv to fix the color separation issue.

Jun 05, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Problem with Sony KP46WT500: Each line on the

These sets have several common problems listed below.

Problem #1) Convergence


  • Screen Looks Distorted/3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking screen
  • White looking sceen
  • Halos around objects
  • Red/Orange looking

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


Mar 16, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Colors have separated. and top and bottom af pictures are bowed. i have a sony kp-46s55. its about nini years old and it was free. currently the colors are separated and the top and bottom of the pict

nbad convergence ic , this need to be done by a profecional tv tech , because need to check for the pico fuse and resistor around the area

May 08, 2009 | Televison & Video

1 Answer

Overlaping colors

NO, does not lamp problem.
If its rear projection TV then its convergence our ICs failure problem and need to be replaced these ICs.
Let me know exact model and brand of TV for more info.

Apr 30, 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.

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

1 Answer

Sony KP-46WT500

you need to replace both convergence Ics number STK392-560 its a fairly easy repair that requires basic soldering skills. you can get replacement Ics with free instalation instructions with pictures at the following link,

May 25, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Model Sony 61HS30

no, if touch focus didnt correct it, you will need to replace the convergence ICs

Mar 20, 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...

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