Question about Toshiba 50H82 50" Rear Projection Television

4 Answers

Toshiba 50h82 convergence problem?

My tv has a blue "rainbow" effect on the bottom half of the screen. It happened quite suddenly. It was fine when we turned it off and the next time we turned it on, blue rainbow. A local tech suggested a convergence issue, but more details would be great. Thanx for any help. Vinnie

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  • vinnois Oct 03, 2008

    Is there any other possible problems? If not, more details on the location of these particular chips would be nice

  • vinnois Nov 16, 2008

    Can I get a service manual from you guys?

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4 Answers

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Yuor tube amy infected .open your tv case then remove all dust from it.replug al connection .
try to dry the circuit .
thats all.

Posted on Oct 03, 2008

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Although this is a different model TV, the site offers you pictures and details on how to locate and replace the convergence IC's.(Make sure you use STK392-110 chips and not STK392-180 as shown in the site):
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

You can buy replacements here and they also provide free installationinstructions and free on line tech support so you can do the repairyourself:
http://servicemanuals.vstore.ca/

If are unsure how to do this, try to get a friend who knowsthis kinda stuff to do it for you, or get a qualified technician.

Warning:If you do not have a background in electronics repair, or are inexperienced,get a qualified technician to do it for you.

REMEMBER there are very dangerous voltages inside a TVthat can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECTTHE POWER BEFORE YOU DO ANYTHING.

Hope that helps! Should you have any further questions,please post them here.

If you are satisfied with my solution or have no further queries, please take amoment to "Accept" this solution.

Thank you for using Fixya!

Cheers!
IrishDruid


Posted on Oct 03, 2008

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Hi,
Yes it is convergence problem.. IC804 controls red convergence. But in time IC805 will also fail as well. Replace them both with STK392-110. Also, check for cold solder joints in the vicinity of these ICs. You need to replace following ICs, may be 2 pieces in your tv for convergence problem. IC, STK392-110T

Toshiba Part Number: 23135090X
Please search on net for availability in part stores

Thank you........

Posted on Sep 28, 2008

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Need to replace STK392-110 convergence locate these two chips on the left side near the inputs attached to huge heat sinks.


Thanks for using Fixya

Posted on Sep 28, 2008

  • SAM ANDERSON Nov 17, 2008

    You can get manual from fixya itself . Click the link below

    http://www.fixya.com/support/p203402-tos...

    In that you can find manual section .


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Related Questions:

1 Answer

Do lamps have adjustment? I have a yellow and blue rainbow effect along bottom of screen. I am pretty handy and well equipped.


This would be a convergence adjustment. Check your user menu on the tv. Look for an item under video settings for a something called "Converge" or "Convergence". See if you can adjust it enough to fix the problem. If not, you may need to access the service menu and adjust from there.

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This set does not have a lamp. It has 3 crt tubes that converge to create a color picture. The convergance is off a little causeing this affect. Go into the menu and look for convergence or magic focus. You can download the owners manual from Toshiba website to do this. You will need the remote that came with the set.

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I have an older model 50 something inch. Tv comes


Ur convergence it dead,need a convergence kit,u know how to solder right?Buy a convergence kit repair what in that kit.Tries these websites.Tv Repair World.com,Ebay.com.

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2 Answers

Rainbow effect at top of screen


This is a convergence problem that can be as simple as poor solder connections on the pins of the convergence ICs or defective ICs. If you wish to attemp the repair yourself, please let me know and I'll look up the parts and provide additional details and instructions. Also, please confirm your model number.

Thanks,

Dan

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my convergence are having a problem the blue color won't moved

Oct 03, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Convvergence problem w/ Toshiba 50H82


You need to replace following ICs, may be 2 pieces in your tv for convergence problem.
IC, STK392-110T

Toshiba Part Number: 23135090X
Please search on net for availability in part stores

Sep 27, 2008 | Toshiba 50H82 50" Rear Projection...

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Toshiba 50H72 Rear Projection Television


You will need to replace both convergence ICs they are STK392-110 you can get replacement ICs at the following link and they will provide free instalation instructions with pics and also free on line tech support so you can do the repair yourself. Heres the link.
http://servicemanuals.vstore.ca/

May 04, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

50H82


With our help and some skill at soldering,can be done ....

Don't worry about CRT ( Cathode Ray Tube)

Blue arching is convergence issue = needs STK392-110 IC's
replaced = requires chassis pull.........T.

Dec 19, 2007 | Toshiba 50H82 50" Rear Projection...

1 Answer

Toshiba 50H82 blue arcing?


color shadows on numbers or letters indicate a possible convergence problem.. might be a crt deflection problem.

Dec 18, 2007 | Toshiba 50H82 50" Rear Projection...

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