Question about Sony KP-43T90 43" Rear Projection Television

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High voltage cable removal/cuircit board

Can anyone identify which stk/ics need replacing if i send a picture of the cuircit board(convergance way off)also is there a easy way of removing high voltage cables from the board or the block .the manual states a 90 deg turn but these things won't budge.already busted one.where can i post picture

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Re: High voltage cable removal/cuircit board

Push then turn . if not sony makes a plastic tool to remove. try to remove from block

Posted on Apr 02, 2007

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TV is blurry and the red and green look as if the picture is in 3d and I need glasses. Can I fix this myself?

There is almost nothing that can be fixed by yourself if your not trained in high voltages and advanced circuitry now days. This sounds like it could be your color guns going bad or the power supply.
This set also has an issue with The tv convergence board,require 2 STK convergence ICS and some or all it resistors to replaced to solved the tv convergence picture problems.

Jan 12, 2011 | RCA HD56W58 56" HDTV

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Blurry picture. Red & green ghost. I am currently removing the circut board to replace the amplifiers. How do I remove the high voltage wire from y=the transformer

Not any amplifiers problems.The problem u having it known as covergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors pictures shadows or 3D look like pictures.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced on the convergence board to solved the picture convergence problems.The Shop,will cost u $300-350 for parts and labors.

Oct 21, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

My Toshiba projection screen TV the picture is bowed and the colors don't line up

3d colors not lining up poblem dicates "convergence issues.. bowing piture may indicate complete faliure of convergence alignment cuircits... depending on model the most likely cause will be 2 micochips (ic's called stk<s)

Aug 23, 2010 | Toshiba Projection Televisions

2 Answers

There is a blue color shift to the right making people look like they have a blue shadow. Thanks. Matt.

it is a convergence failure
you need new stk chips to fix
this is complicated and requires soldering
typical cost 150 to 300

if you are crafty i can give you ideas on how to improve the picture without repairing but you will have to reach near high voltage lines, let me know if you feel so inclined

May 21, 2010 | Projection Televisions

1 Answer

Had convergence problem; replaced 2 stk392;

100% Ur 2 STK convergence ICS are still dead.Ur ICS soldering some how,u got the ICS shorted.Or ur ICS not right kind of STK ICS,u replacing in ur convergence board.

Apr 07, 2010 | Panasonic PT-56WXF95 56" Rear Projection...

2 Answers

KP-61HS10 Convergence IC Replacement

yes they can hold a bit of voltage so a high voltage probe will discharge them nicely, something you might not have but can get from ebay if you are going to do this alot. you don't need to be concerned about this though as you won't be doing anything with them so don't touch..
just be carefull when desoldering these stk's use solder wick and patience even a pro can take an hour to desolder these so be carefull not to lift the trace or the situation will quickly get worse. don't adjust these tubes as they are set to the correct alignment already.

Jan 02, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Green convergence, bad IC?

C8011 could definately cause the problem you are indicating as one side of that capacitor is tied to the postive feed for Red horizontal in IC8001 ( STK392-560) and the other is tied to the Green vertical return . I would replace that along with the IC as the IC is sure to be weakend if that capacitor has shorted. Let me know if you need further assistance.

Apr 08, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

2 Answers

Right side convergence

A convergence IC has burned out. If I remember correctly, those Pioneer sets have one huge convergence IC, but that IC only has 5 channels in it so they use another smaller dual STK IC and one half of it is used for the 6th channel and the other half is the vertical output. Look on the convergence board, find the blue convergence jack, identify the blue horizontal channel, follow the traces and replace the IC handling the blue horizontal channel.

Aug 28, 2007 | Pioneer SD-P50A5-K 50" Rear Projection...

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