Sony KP-43HT20 43" Rear Projection HDTV-Ready Television Logo

Question about Sony KP-43HT20 43" Rear Projection HDTV-Ready Television

4 Answers

Picture looks like 3D without 3D glasses on???

My TV was working fine last night, and then this morning, when I turned it on, the picture is distorted. I can explain it as looking like a 3D movie. The way the screen looks if you take off your 3D glasses. If I was looking at the letter A in the bottom corner, there would be 3 of them, one green, one blue, and one red. This is basically how the whole screen looks. In the center of the screen, it almost is clear (not quite), and as you go toward the corners, it gets more distorted. Please let me know if more description or info is needed. Thanks!

Posted by Chris Hone on

  • 10 more comments 
  • balex Nov 09, 2007

    I don't know if I have the same problem, but I can fix it temporarily by pushing "Flash Focus" button on TV. It comes back either some time later or after turning the TV off and on.

  • Anonymous Nov 11, 2007

    i have the same problem but when i hit my flas focus it does not work, it starts but only blinks 2 times then goes right back to the picture and the picture stays the same

  • Anonymous Nov 17, 2007

    my problem is the same it looks like 3d.i have comcast cable employee come in to check maybe its there box and he told me that its my tv.please help me....


  • flocko Jan 07, 2008

    Mines the same,can sometimes get it to go back to normal by turning the tv on and off.

  • Robert Hinton May 03, 2008

    I replaced my ic's and went into the service mode to redo the convergence. I cannot get the green verticle lines to move. I have tried the item and followed the repair manual. Anything that am missing. I covered the red and blue lens while working on the green grid. The center pattern works fine. Is there a factory reset on this model?



  • Anonymous Jul 17, 2008

    I have the exact same problem, thanks for the post. More help on identifying fuses and location would be helpful for the do it yourselfer. . .

  • zimowy Aug 01, 2008

    Wait 5 to 10 minuts for pictures

  • mbapt Aug 12, 2008

    picture is distorted at upper left corner with some rainbow colors

  • fairway08 Nov 22, 2008

    I have the same problem. Have replaced the IC's and still have the same problem. Do the yellow fuses on the G board supply power to the IC circuits on the D board???

  • wishfulfrida Feb 13, 2009

    3D effect

  • d2hung Apr 24, 2009

    I have the same problem. the picture look like in 3d without 3d glasseson.

  • newtv May 25, 2009

    My Sony TV did the same thing las night. Did you find out what the problem was? if so what was it? can I fix it myself? How much did it cost you?


4 Answers


I had this problem last week. serviceman repaired the convergence issue.

STK392-560 x2 and either fuses or resistors that were blown out

that stk part goes for around 7-10 bucks each on the web

you will need soldering skills to complete the repair.

Posted on Dec 08, 2007


The other answer here is useless.  Try this, it was mailed to me by a good guy who had already solved this problem.


Here is a link to the Service Manual - - it doesn't really detail this repair. Scroll through and find your model # and download the pdf.The D board is the center
board, and the 2 big heat sinks you see at the back of the chassis are attached to the 2 IC's that you need to change. You can't see the IC's they're attached at the bottom of the heat sinks facing forward away from you. There are three screws at the bottom of the tray housing all the boards, remove them and you can pull the whole tray out about a foot, much easier to remove the board. Several of the plugs are identical, I used
different color touch up paints and dabbed both sides of the
connection, eliminating confusion on re-assembly.

The fuses, if you need to replace them are on the G board, the vertical board to the left. They're yellow, side by side, and fairly easy to spot. I got the parts from MCM electronics, just Google it, and search for STK 392-560. Get two of them.

Good Luck!

Posted on Oct 18, 2007


You need convergence ics

Posted on May 13, 2007


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I have the same problem. Vonvergence all of a sudden went out.

Posted on Aug 25, 2008

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Related Questions:


I turned My tv on and the top of the screen has red, green, and blue swirl lines, and the rest of it looks like watching a 3D movie without glasses, and the picture looks as if you took out the screen and...

The tv have a problems known as a convergence pictures problems,it is dead.Tv have any colors lines R,G,B mis alignments,have colors shadows pictures or pictures look like 3D?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 pictures problems.The tvs shops will cost u like $300-$350 for parts and labors.

My 46" SONY LED has no sound coming out now.

Hi this sounds very much like a dry or bad solder joint probably on the power supply PCB, if you have the necessary soldering skills and a magnifying glass you maybe able to fix this yourself.

The picture below shows an example of what a dry joint(s) looks like, if you are able to solder and understand the risks in taking apart your TV you could save yourself a good few bucks!


Always make sure the TV is unplugged and please be aware that voltages can still be stored even when the tv is turned off, if in any doubt or you are unsure about attempting a repair please consult a qualified TV technician.

Hope this helps


Looks 3d,bows in the middle

You must replace conversion IC's (2)
Part number: STK 392-xxx
Also check resitors in circuit for>>open
easy repair!

Picture looks like 3D without 3D glasses on???

The cost I don't know, but this can be fixed. I'd say shop around a bit. Make sure the repair person is certified for your TV's manufacturer. There are generally 3 lamps in projection T.V.'s, Red, Green, and Blue. They have to be aligned for the TV to project a clear picture. A credible TV repairman should be able to fix it. Depending on if it's new enough to be under warranty they may cover it as well. Really the only reason to get rid of it is if you want to get a new TV anyway. Depends on the cost of having the lamps aligned.

Looks like watching 3D movie(colors) and rounded

This is a convergence problem and is either bad connections on the convergence ICs or defective ICs. If you feel that you can solder, you should be able to repair this yourself. First try resoldering the pins on the convergence ICs. If that fails, replace the ICs. These ICs are large black ICs attached to a heatsink and should be marked STKxxx.
Keep us posted.

Looks like watching 3D movie(colors) and rounded

convergence IC.s replacement and realigment job for expert technician no to expensive job

Ghost images on the screen

sounds like the two stk392-560 ic's need to be changed, usually about $400 for the parts and labor

Phillips 60pp9401

Yes,generic will work, mirror material is nothing special, just get
the size right................
Original problem is convergence you still need solution ? ...................................T.
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