Toshiba 42H82 42" Rear Projection HDTV-Ready Television Logo

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

2 Answers

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!!!

Posted by Judy Geluk on

  • 1 more comment 
  • Judy Geluk Jul 23, 2007

    Can I install this or do I need a tv repair person to do it?

  • chip61 May 03, 2008

    hi

    i also have a blue ghosting problem that could not be fixed by manual convergence adjustment. i was able to get the red to slide over the green markers but blue wouldnt move far enough and the adjustment icon is distorted (not just out of alignment).



    on this model the enter and exit buttons are used to access the menu, then it asks to enter a number from 1 to 9, does convergence need to be adjusted manually for each location? i think yes.



    i dont know model number of this toshiba but i got i used with no manual, screen diagonal measures 50 inch, it is probably around 7 years old.



    sounds like something i might be able to fix by replacing a component. looking for guidance on what to replace and how to do it. thanks for any help.

  • Scootermom May 26, 2008

    Approx. 7 year old 42HDX82 touch focus error with ghosting. Tried auto focus several times. Tried to manually adjust convergence. Can get one side focused, but other side we can not. This side we can get the blue/green to move, but red will not. Tried again to adjust red, but it either won't move or when exit is hit it takes you back to the 1-9 selection screen. Tried adjusting screen size several times to see if anything else was visible, but it didn't seem to help. STK pack? If so, how/who to repair? Cost prohibitive? Any information is greatly appreciated.

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2 Answers

Anonymous

Looks like you found a solution, but i had a red ghosting problem...my 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

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Anonymous

Yes Its the stk Packs,They are usally 18

Posted on Jul 23, 2007

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Related Questions:

0helpful
1answer

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.
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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
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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.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
1helpful
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1helpful
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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
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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.

michtech
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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.
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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
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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.

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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
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