Question about Toshiba 42H81 42" Rear Projection Television

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Colours are out

Blue and red slightly out looks like 3d

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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 your convergence 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. Power light will blink. TV may also make a chirping noise.

Here are some photos of convergence problems


colours are out - a56fe79.jpg

6d0da0b.jpg

fcabb43.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya - CLICK HERE

Posted on Aug 28, 2010

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My Lg colour tv is getting these weird red and blue shadows that makes the picture looks like it's in 3d can I fix this?


thats called ghosting its usually down to your tv ariel try putting your ariel on a mast for a better clear reception.

May 05, 2014 | Televison & Video

1 Answer

I have a panosonic TX-47PT1. No problem since new. 3 days ago the convergance went. The colours (mainly red ) have slightly seperated and become a horizontal wave. I have read the forums and it seems there...


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from 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 your convergence 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. 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

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 02, 2011 | Panasonic PT-51HX43 51" Rear Projection...

1 Answer

My picture is split. For example when text is on the screen the words are in red above and then again in blue slightly below. Is this an easy/cheap fix or should I get rid of the T.V.?


Based on your description, the convergence circuit has failed. If you looked at the tv menu do you see what may look to be 3D, double image, or a red picture and then blue picture slightly offset? The picture may be distorted as well.

A repair shop will charge about $300 to fix.

If you have soldering skills, an electronics background, an OHM meter, then its not to hard to do, just time consuming.

Feb 18, 2011 | Pioneer Televison & Video

1 Answer

My picture has broken into colour ghosting (it looks like a 3d picture without the glasses on). I'm guessing that this might be the failure of one of the colour bulbs. The wavey colour bands that I see are...


Please do us a favor and rate this solution after reading.

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from 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 your convergence 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. 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

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Please do us a favor and rate this solution after reading

Jan 31, 2011 | Hitachi 57F500 57" Rear Projection...

1 Answer

Convegence


Yes - about every 4-5 years.

This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:


  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms

  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 18, 2010 | Televison & Video

1 Answer

Printed colours doesn't match with monitor colours


Here is a list of reasons why colours on electronic designs might differ from printed designs:
  • Monitors work in the RGB (Red,Green,Blue) colour space while printers use the CMYK (Cyan, Magenta, Yellow and Black) colour space.
    Designs look fine on a monitor if they are designed in RGB to begin with. Converting them to CMYK might make them look odd on screen, but they will print correctly, to a certain measure. It is difficult to sign of an image file that is currently in CMYK mode while viewing with an RGB monitor.
  • Monitor settings differ.
    The designer was sitting in a darkish room when choosing the blue and his blue looks vibrant. The client was viewing the same design in a well-lit room, making the blue seem lighter. The designer uses an LCD display and the client uses a CRT monitor and the vibrancy differs. The contrast and saturation settings on each monitor might differ as well, rendering the blue with different values.
  • Each printer in the world prints colour slightly different.
    Sometimes it is really obvious and sometimes it is almost impossible to see the difference. Normal desktop printers are definitely not something to do colour proofing with. If you print the design out on your desktop printer then a slight shortage on any of the colours will make the colour come out wrong. There are a lot of factors that can influence even the most expensive printing equipment. These include altitude, humidity, the current heat of the printer, age of the printer, quality of ink, the paper that is being used, special coatings on the paper etc. Even viewing the same printed material in different lighting conditions may make the colour seem different.
Tips on getting the most accurate colour
Go to your nearest printer company and ask to see their Pantone colour matching system. Each colour in the Pantone chart has a matching number. Most design applications have the same Pantone charts built in so that colour matching is easy. Read up on Pantone at Wikipedia. Make sure that the file is converted to CMYK (If not designed in it originally) before sending it to print. Some printer companies might ask for colour separation prints which the leading design packages can produce. It is also important for the designer to choose the correct colour management profile in the design package.

Dec 05, 2009 | HP OfficeJet 6110 All-In-One InkJet...

1 Answer

Double image and colour


There are two common problems with these sets.

Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 07, 2009 | Sony KP-53HS30 53" Rear Projection...

1 Answer

Top part of tv has a colour problem, its faded and looks like its shaded


if picture is not having a 3d look were red green and blue does not converge properly then it could be as simple as a dirty mirror but unfortunately either you have a convergence issue or a cloudy coolant fluid or a bad focus block

Aug 09, 2009 | Samsung HC-P4363W 43 in. TV/DVD Combo

1 Answer

Picture almost looks like it is in 3D on RCA 52" rear projection


there are 3 brown fuses by the flyback the 1 in the middle is bad

Jun 06, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Sony 3d images and red /blue colour


most of the time the convergence ic's can be replaced in the home.they are usually the 2 large ic's on the left side board mounted to a large heat sink..the ic's will cost between 25 an 50 dollars each.. the job requires soldering skills so you might want to call around to find a tech to come and replace the..also are you sure you don't have a kp 48V65?

Nov 28, 2007 | Televison & Video

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