Question about Sony KP43T75GRAY 43" Rear Projection Television

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Sudden double image on Sony 43T75 projection tv

First problem ever with this 7 year old tv

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6 Suggested Answers

  • 71 Answers

SOURCE: tv double image

It's not only adjustment, you have to replace both STK 392-560 IC.

Posted on Dec 06, 2007

C-Dog
  • 84 Answers

SOURCE: Panasonic PT-51HX41 rear projection tv showing shadow/double images.

Unplug the TV from the ac wall outlet for about 4 minutes then plug it back in and turn it on. If it still has a double image then tell me if it's affecting the menu screen from the TV (not the cable menu). And is the double image in red and blue?

C-Dog

Posted on Feb 18, 2008

  • 41 Answers

SOURCE: sony xbr-52in projection tv show double picture's

It sounds like a convergence problem. A fairly common reason for thisproblem is the convergence chips have failed. They are usually referredto as "STK" chips since the model number of these chips start with STK.I will put a link to another part of this site where someone has postedpictures and a link where to get the parts should you decide to fix ityourself. Look at Ecullier2012's posting. Jean's posted site will notfix this problem. Hope this helps you out. Let me know.

http://www.fixya.com/support/t1684874-screen_blue_green_green_red_outlines

Posted on Mar 16, 2009

SD Tech
  • 14553 Answers

SOURCE: sony rear projection tv showing double

If you have a CONVERGENCE problem and it will not adjust---the two STK-392-150 Chips this set uses need to both be replaced and the set adjusted with the original remote control.

You can, if you are able to do the repair, buy a pair of chips for less than 14 dollars plus shipping on Ebay.

If you cannot do the repair--shop around your area--most shops are going to charge 300 or more for this kind of repair.

When you consider the cost of the parts--if you can do it or know someone who can--you can save the set and a lot of money--This repair can easily be done right in your home in about 1 hour--I know as I have done hundreds of them---did two today.

The chips (with the back off of the set) should be on two metal heat sinks on the board on the far left---they will be facing the front of the set.

All that is required to get at them is to remove all the plugs on that board and the screws that hold it in and tilt it up so the bottom of the board is in view---you unsolder both chips (about 18 pins each) and remove the 2 screws that hold each to a heat sink.

With 2 new chips you put heat sink compound on the back of each--it is a white grease to move heat quickly from the chip to the metal, and solder both chips in----put the board back down and all the plugs back(I usually mark all of them so I know where they go) and turn the set on and see what you have...

Most of the time this repairs the set--go into the customer menu and adjust the convergence and you are ready for another 5-8 years of life---this is the normal lifespan of these chips.

If you need assistance or have questions let me know--I am here to help people.

If this information helped you, rate this solution as I do this here for free.

SD TECH

Posted on Nov 08, 2009

  • 668 Answers

SOURCE: projection sony tv is yellow

Most likely it is the Optical Block. It has been a issue for most of the Sony LCD Rear Projections manufactured over the last 6 plus years. Your Model may still Qualify as a factory recall. What you need to do is to get in touch with Sony's Customer Service at 1800-222-SONY and see if it does Qualify.
If not, it is a expensive repair costing 1200.00 to a 1500.00.
I hope it still does Qualify for a recall,
Skyassoc

Posted on Jan 07, 2010

Ecollier2012
  • 3459 Answers

SOURCE: double image on my Sony KP 43t90

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 projeciton 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 photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Posted on Jul 03, 2010

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1 Answer

Blurry picture on left side double image right side is ok....


Ur convergence is dead,need convergence kit.
U know how to solder right?Tries these websites for convergence kit.Tv Repair World.com,Shopjimmy.com,Ebay.com or Partstore.com

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Half of the screen is clear and left side of the screen is blury


Its a Common Problem with Projection Tv's ~ If your flash focus is not correcting the problem, And It can Not be Adjusted in your service menu: under Manual Convergence, your IC chips and maybe a few resistoirs may have failed and need to be replaced!... onegeo

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2 Answers

Sony KP-43T75 color repair


This link has the instructions on how to fix this problem and other similar problems. You have nothing to lose, so I recommend that you try it.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

This works with the two other colors, blue and green also. Not all models of Sony Projection TVs have the red, green, and blue pots in the same order as the picture that is listed on this link, so you may want to google search for your model's service manual. The service manual can also help you be able to remove the cover for your particular model of TV. I was able to find the service manual for my model, and sure enough, the order of the pots are reversed on mine, so I would have been adjusting the wrong color. Read all of the comments on this link too, because you can find other helpful tips and may even find someone with the same model of TV as you that gives more specific instructions for your model.

You may also find your model's service manual here:
http://esupport.sony.com/US/perl/index.pl
I hope this helps you!

Fare well. :)
Iconoclast

Jun 27, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Double screen image


Double image shows that TV got problem of Convergence Out ICs failure and will be replaced two ICs mounted at D Board of TV.

ICs, STK392-360 are available in Part Store, click to see an image and price info.

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1 Answer

Will My Sony work Overseas


your users manual should tell you if it is a pal and ntsc system it will, thay do make ntsc to PAL convershiom box cost about $139

Jan 09, 2009 | Sony KP43T75GRAY 43" Rear Projection...

1 Answer

2 separate colors on screen


sounds like your convergence IC's have finally gone bad.. they seem to last 5 years on average.. have a look here: http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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1 Answer

Picture shadow on rear projection Sony big screen TV


OUR TOSHIBA HAS A DOUBLE VISION/BLURRIE PICTURE. THIS PROBLEM IS ALWAYS THERE. SOMETIMES THE PICTURE IS GREAT, BUT MOST OF THE TIME ITS BLURRIE/DOUBLE. LOOKS AS IF IT ALWAYS ON 3D!! ANY SUGGESTIONS? WE WOULD REALLY APPRECIATE ANY HELP WE CAN GET FROM ANYONE. THANK YOU!

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