Question about Toshiba 50HX81 50" Rear Projection Television

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Toshiba 50HX81 50 in. RP

Colors run together and image looks 3D

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  • bbay424 May 06, 2008

    colors run together and image looks 3D

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Change both convergence ICs STK392-110 you can get replacements at the following link and they provide free instructions with pictures so you can do the repair yourself. heres the link.
http://servicemanuals.vstore.ca/

Posted on May 07, 2008

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1 Answer

Bouncing colors


Answer here is based on the 52HM84 model number given:

May be a convergence problem--3d looking

If looks like attached photos in any way let me know and I will suggest a solution for your problem.
4_11_2012_3_54_37_pm.jpg


4_11_2012_3_55_08_pm.jpg


4_11_2012_3_55_37_pm.jpg

Apr 11, 2012 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

I have a 52" Toshiba


If the picture looks like 3D and letters ,people have colors shadow over them ,Then you need to replace Both of the STK ICs they are big black ICs and will have PN# on them STK392-110 use 120s and check the 3 1.8ohms 1watt resistors.
Mats Electronics has ICs 1-800-628-1118

Nov 24, 2010 | Televison & Video

1 Answer

The picture is showing a double image and is distored.


The problem you are refering to is more than likely a convergence problem. The convergence circuit in your tv is controlled by an IC (integrated circuit) stk392-110 and it makes the 3 colors (red, blue, green) line up/converge together to create a clear picture. You'll know when this part needs to be replaced because the picture you see is 3d looking and possibly bowed on the top or bottom or on the sides in any or all 3 colors.

Jan 24, 2010 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

60" phillips rp tv 3d/ glary and turns off when av is applied


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.
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77ea520.jpg
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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.

578ba6c.jpg
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.

Mar 28, 2009 | Philips 60P8341 60" Rear Projection...

1 Answer

60pp9363h/17


You have a convergence problem.  Here are some of the most common symptoms. 

Screen looks 3D
One or more colors can't be adjusted when when using the convergence menu. 
Screen is bowed in but stationary.

Solution: 
You need to replace the convergence chips and convergence resistors.  Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit inlcludes a photo instruction guide, original Sanyo STK chips, convergence resistors,  etc. Everything you need to fix it yourself.  Its an easy fix. 

Sep 28, 2008 | Philips 46PP9302 46" Rear Projection...

1 Answer

I have problems with my Toshiba 50H72 image/ colors, like 3D.


you will need to replace the two convergence amp ICs they are STK392-110 you can get replacement ICs at the following link and they provide free instalation instructions with pictures.Here's the link.
http://servicemanuals.vstore.ca/

Jun 22, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Tv picture


Does the image appear to be 3D? Let me know as it sounds like convergence issues. Is there anyway you can post a picture of what the screen looks like?

May 17, 2008 | Toshiba 50H72 50" 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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