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Bowed picture & red/blue/yellow separation

I have a Toshiba 48" Cinema Series (rear projection - model# unk, please don't make me pull it out of the in-wall entertainment center) and all of a sudden I'm getting a bowed picture with red/blue/yellow separation. I recently moved so something may have been jarred loose but it worked just fine for two days after the move. I used the original remote in an attempt to reconfigure the convergence (I think that's what it is called) but cannot find where to do this in the settings. Any suggestions?

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Your TV most likely has one of two possible problems.

Problem #1 - Failure in the convergence circuits. ( 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.
Here are some photos of convergence problems.

bowed picture & red/blue/yellow separation - 3dc9420.jpg
bowed
0dcec37.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 conbowed picture & red/blue/yellow separation - 0667c5f.pngips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, 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 fluidbowed picture & red/blue/yellow separation - 9e7eb5b.jpgotice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

9e7eb5b.jpg

TVbowed picture & red/blue/yellow separation - 2c07611.pngter fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

182c282.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 May 22, 2009

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1 Answer

Toshiba Rear projection 65" cinema series


You need to replace or have the convergennce IC's replaced. This is not a very hard job to do, but will take some soldering skills. Good Luck

Oct 21, 2007 | Toshiba 50A61 50" Rear Projection...

1 Answer

Re: Toshiba 65 in Cinema Series - 12 years old. Color Separation. Green bow at top center of screen, red and blue double images tilting upwards toward sides. Sometimes clears unassisted after set has...


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.

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

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

Jan 20, 2011 | Toshiba 65H82 65" Rear Projection...

1 Answer

My Toshiba cinema series HD separates the red & blue color.


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 18, 2010 | Toshiba 57H82 57" Rear Projection...

1 Answer

Our tv is 10 years old toshiba cinema series it has blue and red


It will be 11 years next month that I've had my Toshiba 55H55 Cinema Series and have the same problem every now and then, if you haven't already done so, go to the picture settings and scrolling down to conversion and it will take you through 3 steps of adjustments,there is a white cross in the middle of the screen line up the red first and then the blue, it will then take you to a screen with numbers, ID the clearest number and exit out, you should have a clear picture again. I hope this helps.

Jan 06, 2009 | Toshiba 50H81 50" Rear Projection...

2 Answers

THE COLORS ARE SEPARATED (RED, YELLOW & BLUE ETC.)AND THE PICTURE IS NOT CLEAR. THE PICTURE IS BOWING AT THE TOP AND BOTTOM OF SCREEN. PLEASE ADVISE.


You need new convergence ICs this is a common problem on all projection TVs. Please post the model number of your set and I will post a link where you can order the new ICs and recieve free step by step instructions with pictures on how to do the repair yourself.

Mar 31, 2008 | Televison & Video

1 Answer

65 Toshiba picture sides are bowing in.


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=

good luck
please mark the post with a fixya

Feb 21, 2008 | Toshiba 65HDX82 65" Rear Projection...

1 Answer

Video problem


The two convergence IC's part# STK392-570 need to be replaced - about a $300-$400 repair.

Sep 27, 2007 | Mitsubishi WS-65907 65" Rear Projection...

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