Question about Sony KP-46WT510 46" Rear Projection HDTV

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How do I correct the problem of red, yellow and blue, triplicate colors blurring on my KP-46T510 46 in. Rear Projection HDTV Television

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  • Sony Master
  • 14,553 Answers

Its called convergence and this model should use two of the stk-392-560 chips----TVrepair.com sells kits for this based on model number but soldering is involved.


How do I correct the problem of red, yellow and bl - 11_3_2012_4_20_16_pm.jpgyour chips are similar to this one but will have different number on them.

Posted on Nov 03, 2012

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

ladywinn
  • 5138 Answers

SOURCE: Sony KP-43HT20 convergence problem

Replace STK-392-110s or 150s upgrade with 180s replace both ics.

Posted on Jan 09, 2008

  • 51 Answers

SOURCE: Sony KP-57WS500 57 in. Rear Projection Television

Hi Guys

Your problem here has to do with the amount of aging that happens to the three colour tubes - red, green and blue.

Blue actually ages slower than red and green. What actually happens is the green tube deteriorates and due to green being the predominant colour for brightness causes the blue tube`s flyback lines to appear - especially when switching between inputs or when the video is blanked.

No replacing the blue tube will not solve your problem as the tube is actually the best one of the three.

As someone mentioned there is a way to adjust this by removing the speaker grill assembly in front of the set. Doing the service mode adjustment with the remote is not the right way to solve the problem - you would be adjusting the colour gain and off-set values and would seriously be compromising the white balance of the set.

On the left hand side behind the speaker cover you will see a black square block with six adjustment points. Look for the one marked SCR BLUE, Switch the set to a unused input so the blue lines become visible. Now adjust the BLUE point counter clockwise until the lines disappear. A small adjustment should do it, Switch back to a picture and make sure the whites are still white.

This should sort your problem. I would however suggest asking a Sony service centre to do this for you. This is a dangerous thing to do as you will be working close to the 35Kv supply the the anodes of the three tubes.

I hope this answers your question.

Goo luck.

Posted on Mar 08, 2008

SOURCE: Sony KP-61HS10 61 in. Rear Projection Television

my tv has the same problem but it blinks five time with no picture but good sound

Posted on Aug 01, 2008

VOTIT
  • 2071 Answers

SOURCE: Sony KP-43HT20 Rear Projection

You have a convergence problem;

Just click below for convergence repair kit;

http://servicemanuals.vstore.ca/

Blue wave coming up frpm the bottom of the screen on the lower left symptom is for busted convergence IC,you must replaced this IC in order that will works better again.STK 392-xxx ICs and it's associated resistor,this resistor automatically change value,can caused truoble even though you change the ICs.If you bring this to a service center they cost you $600 to $700,but if you buy the repair kit you can save more,don't wory it is very easy because there is intallation guide including in the repair kit. Feel free to ask whatever the result... click the link for sample picture guide step by step installation;

Hope this may help;

Regards,
VOTIT
DON'T FORGET TO RATE;

Posted on Sep 19, 2008

Ecollier2012
  • 3459 Answers

SOURCE: color distortion and arched picture

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.

Posted on Feb 22, 2009

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I have a sony color rear videoprojector tv model kp-57ws500 that when i turn it on its blurry and video or dvd word is red blue yellow almost like in triplicate. after about 45 min. it clears up and works...


If your TV looks 3D, warped, or distorted it likely has a convergenge problem.
If however it just looks dull, washed out, redish, or if it looks like objects on the screen have halos the fluid in the lens has soured.
You can search google for parts or you can get the parts with repair instructions from sites such as www.TvRepairKits.com

Feb 25, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Red and blue color on TV is aligned but blurred, green is ok


U have a CRT Tube coolant problems.Tries Websites MCMElectronics.com,Tv reapair World.com to buy CRT tube coolant to recharge ur CRT.

Feb 26, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Color is red picture is blurred


Ur convergence it dead.Know how to solders?Buy a convergence kit,replaced,use what in that kit.Tries these websites.Tv repair World.com,Tv repair kits.

Oct 04, 2009 | Sony KP-53HS30 53" Rear Projection...

2 Answers

Sony projection tv convergence problem


You need to replace the convergance IC's and a pico fuse on the power supply

Sep 03, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony 61" Projection (KP-61HS10)


Your TV requires Geomatirc Adjustments in proper manner by qualified servcie person.

Jul 19, 2008 | Sony KP-57WV600 57" Rear Projection...

1 Answer

Sony KP-43HT20 convergence problem


Replace STK-392-110s or 150s upgrade with 180s replace both ics.

Jan 04, 2008 | Sony KP-43HT20 43" Rear Projection...

1 Answer

COLOR


Some people have a scale on their T.V. somewhere, or for most cable users it shows on the menu an area where you can change contrast, color, tint, brightness, ect...

Dec 08, 2007 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Colors are not in line together, 3D look


hi, You most probaly have a problem with your convergence, goe into menu locate convegence try and adjust and see if there will be any changes, if not i sugest it be done by a profesional. zazwpx

May 29, 2007 | Sony KP-53HS30 53" Rear Projection...

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