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Hi, name is mike. I have a sony 46" projection television (kp-43-ht-20). My question is..... it seems that the color is out of focus. example on the history channel the H in the corner of the screen there are three different color H's, blue, red, yellow. I've tried doing the flash focus but does not seem to work. what can i do to resolve this problem?

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This problem occurs due to convergence output chips failure, replace these two chips to fix the issue.
These are two big black ICs (chips) mounted on aluminum heat sink and STKxxx-xxx number would be written on them.
Soldering work is required to replace them so ask help from friend who knows soldering work if you do not have any experience or local tv repair shop will do the job.

Posted on Aug 20, 2010

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Posted on Jan 02, 2017

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1 Answer

Screen turns red then shuts off


Sounds like a bad red projection tube, disconnect red tube socket and try again if tv stays on reconnect tube soket and adjust screen controls on front of tv under the front panel which you will have to remove to do any of this. There are six adjustment controls 3 are for focus for each color and 3 screen controls for each color. Look close at the black plastic control module should be labled R G B for focus and R G B for screens. Good Luck!
Mike

Apr 14, 2010 | Sony KP-51WS500 51" Rear Projection...

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Not able to flash focus or use manuel converence i think i need a convergence kit where can i purchase this kit


You probably need to get a Sony TV Convergence Kit for your model. More information can be found using the link below.

Convergence Symptoms:
  • Screen Looks Distorted/3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 09, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Colors don't line up, and screen is distorted on a sony KP43HT20


Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

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

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Dec 08, 2009 | Sony KP-43HT20 43" Rear Projection...

1 Answer

My sony KP-46WT510 the color in three corners is blured and the picture is bowed.


Hi,it seems you are experimenting a light engine problem.This is how your tv works: http://www.youtube.com/watch?v=ZLLHnQ4y-wo So basically the 3 Lcd chips that create the colors and image is going bad and thats why you get that color discoloration.Contact Sony or look for your light engine online.God bless you and your house!

Nov 18, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony 46 inch proj tv picture is bowed in the middle and color is


Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

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

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 29, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Flash Focus does not focus the TV colors are seperated


if that doesn't work it will need new convergence IC's put in as well as a resistor or two

electech

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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

Sony KP-43HT20 convergence problem


Replace STK-392-110s or 150s upgrade with 180s replace both ics.

Jan 04, 2008 | Sony KP-43HT20 43" Rear Projection...

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