Question about Toshiba 57H81 57" Rear Projection Television

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Toshiba pic problems

My Toshiba 57h81 has what black lines that appear more when the colors are solid and light. I swear one looks like a hair cause it moves and the others are stationary and look like long cracks. They are about 12-20 inches long. The convergence is fine. Is there a way to clean the bulbs or anything else to remedy this problem. I do not have a manual but am very electronic and technically capable but do not want to make a small issue into a big one. Thankyou

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  • Allie Todd Feb 05, 2007

    I went ahead and started pulling things apart and found the bulbs needed cleaning. The picture is like new.

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Hi, have you realy look at inside the picture tube, it sound like you may have dride out oil in on of the tube, if the line's or still there, look , this or repairable, you must pull out the crt, wash them , replace the oil and put it back together.
It seem easy, but it's not, will notice at the end you will have to re iline the picture tube and some time it will take 10 hr's.

Look again and let us know.

What About Bob.

Posted on Feb 14, 2008

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Posted on Jan 02, 2017

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Touch focus error red line not straight


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) 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. In some cases the TV will also not show any video. 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 get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Apr 30, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

I have a Toshiba 57H81 57 in. Rear Projection Television. The picture started having "squiggles" in it, which at first went away after the T.V. "warmed up". Now they appear to be...


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

Jan 22, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

Red, yellow and blue bars going through the screen, what does this mean and how do I correct it?


U mean ur tv have colors shadows?Colors lines Red,Green,Blue misaligns don't line up to produced a solid picture?U have a 3D pic?All these are cause by a problems known as CONVERGENCE PROBLEMS.Ur tv the convergence board the 2 convergence ICS and some or all it resistors are dead.All these parts on the convergencce board,must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jun 15, 2010 | Toshiba TP50H50 50" Rear Projection...

1 Answer

Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

Dec 02, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Blinking power light & black screen on toshiba 57h81


This TV could have one of several problems including but not limited to; convergence IC's,bad capacitors, shorted horizontal output transistor. Call a good TV Tech. Check with the BBB before you decide on one.

Jul 11, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Black, Red and yellow triangle in upper right corner of the scrn.


YOU HAVE A CONVERGENCE PROBLEM IC'S WILL NEED TO BE REPLACED. THE FACT THAT THE LINES DID NOT MOVE WHEN YOU TRIED TO ADJUST THEM CONFIRMS IT.

Jan 19, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

I HAVE A 57 IN. TOSHIBA HD TV AND THE TV SCREEN IS A GREENISH


take the front panel off the tv, the bottom, you will see 6 little nobbs :::, use them to adjust your picture, the left 2 should be for red, the middle 2 dlue, and right green, top 3 are for focas, those are probabily the ones you want to adjust, bottom 3 are for turning the colors up and down, mess with those untill pic looks good

Jan 07, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Fuzzy/ distorted tv pic


Projection sets have two very common problems.

The first common problem is convergence


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 more information and a DIY convergenece repair kit with instructions from the link below.

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

*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

bb0cf99.pngYou 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

Dec 22, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Focus error


You need to replace both convergence ICs part number STK392-110 you can get replacements with free instalation instructions with pics at this link.
http://servicemanuals.vstore.ca/

May 04, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57H81 Color Problem


sounds like your green tube is set to high.
take the front cover off and the plastic cover under that
you will see a black box about 6x6 with 6 controls one is for focus the other is for intensity
here a guide for sony but yours should be close.

Mar 14, 2008 | Toshiba 57H81 57" Rear Projection...

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