Question about Toshiba 42H82 42" Rear Projection HDTV-Ready Television

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Convergence problem???? I have a 2002 Toshiba 42H82 projection t.v. that has a blue "ghosting" problem with the picture. I tried the Touch Auto Focus and it aligned all colors except the blue and displayed a Touch Focus Error at the end of the auto adjustment. I tried to manually align the blue through the convergence mode and the blue would not move, but I was able to align the red. I've been reading that this could be a convergence problem which may require replacing the STK or semiconductor. Does this sound right? Also, are these parts easily installed or am I looking at having a repair person coming to my house and it costing a fortune to repair? Any help would be appreciated!!!

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Re: Convergence problem????

Looks like you found a solution, but i had a red ghosting ic amplifiers that controll the horizontal and vertical were bad...i had a sears tech come out he replaced one of the ic amps( roughly $50 a pop), after trip and labor the bill came to bout $250 and the tv worked great

Posted on Nov 10, 2008

Re: Convergence problem???? - Toshiba 42H82 42" Rear Projection HDTV-Ready Television Projection Televisions

Yes Its the stk Packs,They are usally 18

Posted on Jul 23, 2007

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Touch focus error blue

The tv HYPER board it is dead aslo known as a tv convergence board.Tv have a convergence problems,it is dead.Tv Magic Focus button no longer response give error messages.Tv have any colors lines R,G,B mis alignments,have colors shadows pictures or 3D picture look alike?Yes,than the tv HYPER board it is dead also known as a tv convergence board must have it components parts replaced like 2 STK convergence ICS and some or all of resistors too.To fixed the tv HYPER also known as a tv convergence board to solved the tv convergence pictures problems.The tvs shops will cost u like $300-350 for parts and labors.

Aug 12, 2011 | Toshiba 42H82 42" Rear Projection...

2 Answers

Focus Error I am getting double picture and the colors are off. When trying to auto focus the blue lines are wavy.

Replace Convergence ICs ,Big black ICs will have PN# on them example STK 392-110
Mats has ICs 1-800-628-1118

Jun 05, 2011 | Toshiba 42H82 42" Rear Projection...

1 Answer

My picture is wavy and out of focus. when i touch the auto focus it goes through the function but ends with failure. it is a toshiba 42h81.

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.png

Apr 14, 2010 | Toshiba 42H82 42" Rear Projection...

1 Answer

When I run the Touch Focus , it ends Touch Focus Error, and the Red Verticle line does not move , the Horizontal is bent .. now tv is fuzzy?

This is a convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$300

Sep 27, 2009 | Toshiba 42H82 42" Rear Projection...

1 Answer

Toshiba 42H82 Blue raster is bowed to the right in the middle to the rt. The auto convergence give an error.

You have convergence output failure. The output ICs will need to be replaced and possibly a small component like a resistor or two as well. Expect to pay a service company $350-$450 to resolve this.


Feb 16, 2009 | Toshiba 42H82 42" Rear Projection...

2 Answers

Toshiba 57h81 green will not focus

Typically this is a convergence problem and can be repair relatively easy. Refer to this video to determine if you truly have a convergence problem. Also make sure you use your TV's original remote to make this adjustment.

Nov 15, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Blue shadows/ghosts

how old is the tv ??
if this tv is older than 5 years it may need to refill the liquid on the proyection bulbs and/or could have contaminats in the fluid causing the ghost and to fix that you will need a professional person to do it

Apr 03, 2008 | Toshiba TP55H60 55" Rear Projection...

1 Answer

Convergence problem

Blue convergence IC is bad! Blue CRT OK!

Required for repair---pull chassis,replace STK392-110 X 2.

Re-assemble,adjust convergence as needed.

Oct 12, 2007 | Toshiba 57H82 57" Rear Projection...

1 Answer

Blue ghost

If you have the ability to work on solid state electronics and know how these circuits work, you will need to replace the convergence IC's in this TV set. If you do not, call in a pro to assist you in this repair. Good Luck

Jun 20, 2007 | Toshiba 43H71 43" Rear Projection...

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