Question about Sony KP-51HW40 51" Rear Projection Television

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The image on my sony kp-51hw40 tv looks 3d. Image ar overlapping each other. Is The tube going out? can it be fixed?

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This set uses two of the STK-392-570 IC chips for this (convergence problem) on EBAY about 14 dollars for a pair.

It can be a do it yourself repair depending on your skills.


Getting at them, and being able to solder and remove/replace them is the repair.

Let me know how handy you are, I can provide photos of what they look like and what the board inside the set they are on looks like.

If this told you something you did not know, rate this solution as very helpful as I do this here for free.

SD TECH

Posted on Sep 14, 2010

  • blk3fan164 May 15, 2011

    Thanks, can you provide pics for the repair?

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1 Answer

My Sony KP-51HW40 is underscan!


If you have already changed the aspect ratio on your TV, then change it on your cable or Sat box. Your TV appears to be operating normal.

Jun 17, 2012 | Sony KP-51HW40 51" Rear Projection...

1 Answer

My Sony KP-51HW40 is flashing a green screen and then going back to the image, then it gets more frequent, and eventually cuts off, i'm guessing it's a heat issue... but where?


Your Green picture tube is arching / Failing. The only way to fix is to remove the tube and ship it to a company that rebuilds tubes, but this would not be cost effective.

Apr 19, 2011 | Sony KP-51HW40 51" Rear Projection...

1 Answer

My Sony rear projection TV has three images that seems to be out of alignment. There is a blue image, A green image and a red image. What has happened and can it be fixed? Thank You, Art


It can be fixed, if picture is 3d looking it is what is called a convergence problem.

See attached photos of typical ones. This set uses two of the STK-392-560 convergence IC chips.

It can be a do it yourself repair but this does require being able to solder.

Parts cost would on EBAY be under 25 dollars.

Let me know if you want instructions, I have photos of the parts and the board they are on.

see attached photos.

SD TECHsd_tech_11.jpg





sd_tech_12.jpg


THE CHIPS WILL LOOK LIKE THIS BUT HAVE STK-392-560 PRINTED ON THE FRONT IN WHITE.

Nov 30, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

The picture is wavy with the image looking like 3D when you aren't wearing 3d glasses.


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded over.


You can find more details and solutions here on Fixya at the following link below. Or click HERE

3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 28, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Aproximately 50% of the Tv's image is distorted by a green and red doubled image. Can we fix this


Yes, this problem can be fixed if you are handy with electronics stuff repair and can solder parts in circuit board easily with proper tools.
Replace convergence out ICs to get converge picture.
Let me know exact model number and brand of your TV for further info as question shows its Sony KP-51HW40 tv.

Jan 08, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

My sony projection tv has bouble image. can i


Well repair of TV depends on your own skills and if you have any experience of electronics stuff repair then it would not be difficult. This kind of repair requires good parts soldering in PCB expertise.

Your Sony KP-51HW40 seems have problem with convergence out ICs (two ICs) that would be replaced. Both ICs STK392-560 are located on D Board and available in Part Store.
Thanks.

Aug 21, 2009 | Sony Televison & Video

1 Answer

Text/images overlap each other in 3 colors, 3D distorted picture


Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

Here is a quick test....

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

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

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


2c07611.pngSolution


You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

Jan 28, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony projection tv shadow


If your image is appearing like 3D you need two new convergence ICs numbers STK392-560 you xcan get them at the following link and they provide free instalation instructions with pictures so you can do the repair yourself.
http://servicemanuals.vstore.ca/

Apr 02, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

KP-51HW40 - Picture not Clear


Your problem is a typical convergence problem that happens on almost every tube type projection TV set ever built. There are two Convergence amp IC's that need to be replaced. If you have no TV repair experience, play it safe and call in a pro to assist you in this. Good Luck

Apr 29, 2007 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Sony KP-51HW40


I read it online that this is a very simple problem. It needs highvoltage splitter. I tried to open the front panel to see where the splitter is. However, I need some hint as to how to open the front panel. Good luck. Kiran

Feb 19, 2007 | Sony KP-51HW40 51" Rear Projection...

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