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

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Convergance i have a sony 57 projection screen which i recently had the blue tube replaced. i would like to find out how to use the remote to correct the problem. it is not far off but still very annoying

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Check the CRT Grid supply!

Posted on Oct 03, 2007

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Sony KP-57WS5610 Blue light will not converge the blue is offset from everything else on the screen so its like a blue shadow Any ideas on whats wrong


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

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 yourconvergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection 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. The power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit fromTvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.

Common 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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

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

Feb 20, 2012 | Sony KP-57HW40 57" Rear Projection...

Tip

Sony Video Problem / Convergence Solution


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.
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 #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.

578ba6c.jpg
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.

on Feb 28, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

The color is off on the TV. I have I blue line like a shadow. what could it be?


the convergence of blue tube inside you T.V. has a problem..
convergence controls the alignment of three tubes
maybe some capacitors has leak
or vary their capacitance.
it can be adjust but only for those experienced technician.

Sep 02, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

My screen starts blinking blue then goes all blue and pops and shuts off. I can wait hours and reset and it will come back on but the problem repeats itself.


Hi,
This is symptom of bad/ defective blue picture tube that will be replaced to fix this problem.
Blue picture tube replacement is job of professional because it requires lots of convergence adjustments for correct picture and picture tube price would also be bit high.
Let me know to provide you blue picture tube part number info.
Thanks.

Dec 12, 2010 | Sony KP-57WV600 57" Rear Projection...

1 Answer

Turn tv on screen is light blue then picture fades then, screen shuts off???


Blue tube is bad need to replace blue tube.. Tube no longer avail will need to be special ordered and my run from 350.00 up to replace part.

Feb 04, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

There are red, blue and green lines going all the way across


it sounds like a convergence problem; in the customer menu there is an option to adjust it with the Sony remote---if either blue or red will not adjust in some direction---you have a bad IC---this set uses two STK-392-560 IC chips for convergence---both would need to be replaced and the set adjusted again. If this has been helpful give me a vote here---if you need more direct assistance--------- [email protected]

The convergence IC chips are available on Ebay from Surburban Electronics for less then 14 dollars for the pair.(plus shipping)

Aug 15, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Auto focus and manual focus(red+will not move left


Your TV most likely has one or more 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.
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 #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.

578ba6c.jpg
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.

Apr 17, 2009 | Sony KP-57WS510 57" Rear Projection HDTV

3 Answers

TV going Blue


malfunction of the convergence ics

Dec 27, 2006 | Sony KP-57WV600 57" Rear Projection...

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