Question about Sony KP-57WS500 57" Rear Projection Television

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I have sony t v model kp-57hw40 have a convergence problem, change convergence chip both four time in five years,any suggestions

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  • Sony Master
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I agree with the above poster. You need to correct the ventilation problem.

You can also fix it yourself this time...



i have sony t v model kp-57hw40 have a convergence - 3b59090.pngYou can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Sep 27, 2009

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  • Master
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OK, In my opinion, both convergence chips got damaged each time due to over heat in your TV.
Make sure TV is has reasonable gap from wall for ventilation and (a suggestion) if you put Exhaust Fan, that is available in computer supplies, for cooling the silver heat sinks of convergence out ICs, that will prevent these ICs to get over heated.
There is white stuff (silicon compound) pasted between back of ICs and silver heat sink, that should be reapply, its material for quick heat transfer from ICs to heat sink.
Thanks.

Posted on Sep 23, 2009

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Posted on Jan 02, 2017

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Sony kp-57hw40 double picture. regular and the other right next to it is red. tried auto focus and nothing happens. while holding auto focus btton down get red cross and white next to it. tv is 9 years...


Auto Focus button no longer work.Tv have a problems known as a convergence problems,it dead.Tv have colors lnes R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts,must be replaced on the tv convergnce board to solved the tv pictures convergence problems.The shop,will cost u like $300-350 for parts and labors.

Nov 13, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Only HD channels have 3D look - Sony KP-57HW40


have you ran magicfocus on hd channels and if you have and still have problem
it will most likely have to have adjsutments done in the service menu when running on a hd signal

Oct 24, 2009 | Sony KP-57HW40 57" Rear Projection...

2 Answers

KP-57HW40 Sony ..picture is blurry and gives me a headache also has a blue green tint and redish outline of the people???


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

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.
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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 #1

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 note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Jan 06, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Bows on the sides and top of the t.v. screen. The model is KP-57HW40


Have your convergence amps replaced ....by tech and all will be good.

May 29, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Sony KP-57HW40 57


Sounds like a convergance amp problem or possibly the S.D.K.'s are going out

Apr 20, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

SONY KP-57HW40 TUNS OFF AND STANDBY LIGHT BLINKS 6 TIMES


6 blinks is usually associated with failure of the horizontal deflection amplifier - which shuts down the high voltage system as well.

The repair requires testing to determine the exact parts that have failed. There are, for example, a few hundred parts and a section of the Jungle IC chip involved. So, repairs could require something as simple as replacing some inexpensive passive components OR as complicated as replacing the jungle chip (very expensive).

most of the time it's the horz. transformer and transistor.

Dec 20, 2007 | Sony KP-57HW40 57" Rear Projection...

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