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

5 Answers

KP-57WS500 57 in Sony Rear Projection

There are red lines runing across the TV screen. The lines are very thin and are curved. Can I fix myself of does this need a repair by a tech? John

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  • senoj Dec 02, 2007

    the fix is cut off. What is the rest of the fix?

  • chopperextre Aug 30, 2008

    i have the same problem on my mitsubishi 65 in rear projection tv. I called for techs and they want a min. charge of 150.00. after reading this, i took the front panel off, saw the box with the adjustments and adjusted the red on the screen adjustment, NOT the focus. you turn it very slow just enough to where the lines disappear!! This was about a 2 min job and saved me 150.00!!!

  • sonytvgriffi Dec 07, 2008

    I have the same problem, and removed the front speakers and turned red adjustment left and then to the right, still no fix. What else can I try, I still have a red curved line across the screen. griffin

  • lcooper Feb 07, 2009

    Today I turned on our Sony Color Rear Video Projector model
    KP-57WS500, the screen went completely blue and then the screen went blank. I have no picture now. I can change channels and hear everything. Just no picture. Can anyone help me?

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5 Answers

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I had the same problem with my sony KP-57ws500 rear projection tv and thanks to the thread I fixed it in 10 minutes. At first I thought it was a white curved line but then after a closer look it was a very light green curved line. To solve this problem all you need is a flat and phillips screwdriver. Right below your speakers on the right and left side are tabs. Pull out the tabs and remove the screw on eachside. Once that is done remove the speaker cover. The two screws at the bottom are the only screws and you just have to wiggle the facing off by pulling out and down. You will see a fiber board cover in the middle of the tv, there will most likley be twist ties holding some wires, to make it easier to work remove the ties. Now remove the screws on the fiber board and pull it off.

You should see 6 adjustments screws. on the top for is focus, do not touch those.
Below the focus adjustments are the Red, Green, and Blue. The adjustment is slight so turn the correct color slowly and don't push hard on the screw. I had to turn the green to the left to get the lines to disappear and it was only about a 1/32 of a turn. Very very slight. Good Luck.

Posted on Feb 05, 2009

  • tlb0500 Aug 30, 2011

    this info helped a lot.. minor adjustment, you don't need a screwdriver to turn/adjust the adjustment screw, you can do it by hand.. thanks!!

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  • Master
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Sounds like you have a red convergence IC problem. This is a soldered in part and there are alot of hi voltage in this set to be concerned with. Soif you dont know the saftey issues as well as how to solder then YES you should call a tech to service your set. Oh and by the way, all the convergence IC's should be replaced all at one time. Good Luck

Posted on Jun 20, 2006

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What kind of fluid should I used to replace the coolant from the projectors Tv plasma sony. The fluid went to the mother board, and it wants not turn on. What I should to to fix it by myself.

Posted on Apr 21, 2009

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  • Sony Master
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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.
KP-57WS500 57 in Sony Rear Projection - 701cb04.jpg
77ea520.jpgf0900cb.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 KP-57WS500 57 in Sony Rear Projection - 2c07611.pngeplaced. 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.

TV set after fluid change

65af323.jpg

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.

Posted on Feb 22, 2009

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Hey, I had the same problem with blue and red lines and this post helped me bigtime ! Just adjust the color your having problems with. Best Solutionposted on Sep 12, 2006By maddogmic Rank: Not rated Rating: 100%, 1 votes I had the same problem with my sony KP-57ws500 rear projection tv. To solve this problem all you need is a flat and phillips screwdriver. Right below your speakers on the right and left side are tabs. Pull out the tabs and remove the screw on eachside. Once that is done remove the speaker cover and you will see a fiber board cover in the middle of the tv, there will most likley be twist ties holding some wires, to make it easier to work remove the ties. Now remove the screws on the fiber board and pull it off. You should see 3 adjustments on the top for focus, do not touch those. Below the focus adjustments on the

Posted on Sep 27, 2006

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Posted on Jan 02, 2017

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