Question about Toshiba 43A61 43" Rear Projection Television

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Convergence problem. Lower left and upper right

Convergence problem. Lower left and upper right can not be adjusted adequately. Lower left cross askew.

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Convergence is dead.Know how to solders? Must replaced 2 convergence ICS,and all it resistors.Tries website Tv repair World,com,Tvrpairkits.com for the convergence kit to repair it ur self.The shop will cost u $300 for parts and labors.

Posted on Feb 06, 2010

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I have a Sony KDP-57WS550 TV that has a convergence problem. Based on the symptoms, I'm not sure whether to indict the convergence ICs. In the convergence mode, I can move the red (and blue) crosses,...


With your TV in setup Use a small magnet to "move" the non converged Red, Blue, or, Green color lines "crosses" (each CRT will need to be adjusted in turn) by moving the magnet close to the offending Red, Blue or,Green color CRT yoke or, tube while observing the movement of the CRT color line "cross" in a mirror ( try several places near the tube and, several strengths of magnets:) a refrigerator sheet magnet works well (you can cut these with a scissors to make a better fit or, apply less magnetic "pull." by making them smaller (you may need more than one magnet per tube to fix each CRT's convergence) When you have each CRT tube's convergence right, apply some clear silicone adhesive to the magnet and, permanently affix the magnet to the now "fixed" CRT tube exactly where you placed the magnet to obtain the best convergence on the CRT.
(Do not adjust the "Green" CRT unless you must, as it is used as the color line to adjust other lines to)

Jun 30, 2011 | Sony Grand WEGA KDP-57WS550 57" Rear...

1 Answer

Convergence


did u do a repair in recent days
by replacing the convergence ICs?

Jun 18, 2008 | Toshiba 43A10 43" Rear Projection...

1 Answer

HAD MY CONVERGENCE ADJUSTED BY REPLACING SOME PARTS. I NEED JUST ONE OF THE CROSSES ADJUSTED IN THE RIGHT UPPER CORNER OF THE NINE CROSSES


Ur tv still have convergence problems,if u can't reajust manually crosses or auto convergence.U must have 2 not just 1 STK convergence ICS to be replaced,all the resistors must test by the Ohm mulitimeter to the right resistance of the resistor's and replace them as require.

Jul 01, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

At the upper left and lower right corners of the screen there is a red shadow. In the menu I cannot adjust the red in these areas. it is a full cross out of alignment.


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 24, 2010 | Sony KP-51WS510 51" Rear Projection...

1 Answer

My set is 10 yrs old. In the upper left and lower


Try adjusting the convergence. If it won't move see below- red IC in particular
This sounds like 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-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 18, 2009 | Sony KP-43HT20 43" Rear Projection...

1 Answer

Convergence is off in the lower right and upper left corner


The repair isn't too complicated if you're comfortable working with a soldering iron. Sounds like one of the "guns" is shot. The chips that need replacing are attached to the heatsink on the convergence board. The reason for replacing both chips is if you're going to bother to take the board out and replace one bad chip, that is the best time to replace the other older chip. The link below is to step by step instructions including pictures of the repair. You can check it out to see if you want to try it. If not, the repair is expensive (between 250-400) depending on the repairman. Best of luck with your convergence problem.
Greg

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

May 23, 2009 | Toshiba 50A61 50" Rear Projection...

1 Answer

Blurry shadows in red and teal.


Just click below for convergence repair kit;

http://servicemanuals.vstore.ca/

Picture look double and the colors red come out the bottom of the screen on the lower left symptom is for busted convergence IC,you must replaced this IC in order that will works better again.STK 392-xxx ICs and it's associated resistor,this resistor automatically change value,can caused truoble even though you change the ICs.If you bring this to a service center they cost you $600 to $700,but if you buy the repair kit you can save more,don't wory it is very easy because there is intallation guide including in the repair kit. Feel free to ask whatever the result... click the link for sample picture guide step by step installation;

Hope this may help;

Regards,
VOTIT
DON'T FORGET TO RATE;

Sep 25, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Convergence problems


In these projection sets, usually the convergence board has failures. These can be some of the IC's and or a number of the capacitors in most cases.

You will have to call the authorized service rep, or a service center that is familiar with your set and has availability of parts for it.

Considering the age of your set, the risk of investing in to an oder set, it may be a better option to consider a new one at this point.


Jerry G.

Aug 31, 2008 | Samsung HCL4715W 47" Rear Projection...

1 Answer

51mp392h Blue Convergence Problem


Hello rogeuryder,

This is the one thing that even make TV repair persons shudder. You don't really have a convergence problem in the normal sense. The convergence works. What you have is a misaligned convergence situation which any documentation and or book on TV repair will tell you that at this point manual convergence adjustment is needed and the only thing you will have to do is keep trying to adjust the convergence until you get the center aligned, and then work towards the outer edges using both static (Center) and dynamic (outer edges) convergence techniques.

As this may sound it is; Very Very Tedious.

Here is something that may help you:

http://books.google.com/books?id=ttBofTJM7FEC&pg=PA112&lpg=PA112&dq=static+convergence&source=web&ots=hyUMeeY9s6&sig=DZm27q1aMbLiwKA__fyysBd2yUE&hl=en&sa=X&oi=book_result&resnum=9&ct=result#PPA112,M1

I have used this book when I use to teach TV repair. I hope you discover what I am tried to convey in my e-mail, this is no longer a question of can you fix a TV? It has become a question of do you have the patience to adjust a TV.

Good fortune in doing this, you will succeed if you just take your time and do static convergence first and then do the dynamic convergence with the manual controls. The procedure will be in the service manual.

I hope this helps

Thank you,

Shuttle83

Jul 25, 2008 | Philips Magnavox 51MP392H Rear Projection...

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