Question about Sony KP-57HW40 57" Rear Projection Television

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Color problem My t.v. has a yellow verticle bar on right side of set and some yellow blue shadowing. Got any ideas?

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Projector mis -align

Posted on May 29, 2008

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1 Answer

I have small blue dots and a yellow shadow in the middle of my screen


The model indicated uses what is called a Optical Light Engine, it is a very expensive part and likely is your problem---not much else will cause this trouble.

Let me know if you have questions.

Dec 02, 2011 | Sony Grand WEGA KF42WE610 42" Rear...

1 Answer

The Panasonic mod# pt-47wx49e has started to have a blue and a yellow shadow on the right side of the screen. the rest of the screen is normal. The operating instructions give you diddle to on. Do you have...


Ur tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignments,have colors shadows or 3D colors pictures.The tv convergencce board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Oct 10, 2010 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Blue and Yellow shadows on people and words


Open the front panel, till you see three knobs, adjust those knobs till you get the right picture again.

Jul 19, 2010 | Zenith R57W46 57" Rear Projection...

1 Answer

Yellow verticle bar and blue/yelloe shadowing


You will most definately need to have the convergance realigned... This is a normal thing with projection T.V.s Some T.V.s have a button to push that will allow you to get them somewhat back into alignment but a T.V. pro will need to do the convergance on it if that wont fix it. Hope this helps you out

May 19, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Blue and Yellow shadows


Google "HItachi Convergence Circuit" and you will see that it is a very common problem. Looks like TV repair guys get $400 to fix it. The parts will set you back $15-$50 but there is some complicated soldering to do.

I am going to repair my own...but I have a lot of experience in soldering

May 05, 2008 | Hitachi 50GX30B 50". Rear Projection...

1 Answer

Yellow and Blue shadow on left side of screen


Blue convergence off = needs convergence IC's replaced =
Would you like step - by - step how to ??????

Nov 07, 2007 | Toshiba 51H84 51" Rear Projection...

2 Answers

Hitachi Big Screen TV 46 inch Problem


Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

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.

Sep 06, 2007 | Hitachi 46BX01B 46" Rear Projection...

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Yellow vertical bar on right edge of screen


Your set is starting to get a convergence problem and the only way to repair it is by changing the convergence IC's,(3)one for each color,the blue migh be showing more now but soon all 3 colors will be out of alignment and you will not be able to correct it with the custumer controls,is great that it has worked for so long without this problem,if you are familiar with tv service you have a place to check but if you are not too familiar be safe and call for help from a pro-servicer.Let Us know how it goes.

Oct 20, 2006 | Sony KP-53V45 53" Rear Projection...

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