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Blue Convergence on Toshiba 42H82 42-Inch

Slinte,
I have the curved blue convergence issue on my Toshiba 42H82 42-Inch. Is it a tough fix? A previous poster had mentioned it and you were awaiting model number.

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It should just need new STK392-110 ICs which is actually not very difficult. You will need two ICs both STK392-110 and you can get replacements at the following link and they provide instructions on how to remove and replace Convergence ICs.
Heres the link.
http://servicemanuals.vstore.ca/

Posted on Oct 25, 2008

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From looking at the pictures of the problems. it look like I have a convergence issue. what type of cost are involved? Toshiba 65 inch.


Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.

Aug 02, 2011 | Toshiba 65H82 65" Rear Projection...

1 Answer

Samsung SP47W3HFX tv blue flickering curved line..


If the lines are slightly curved and stationary on about 2/3 of the screen its either the Blue CRT or the Blue CRT drive board which is having the problem.

Dec 19, 2009 | Televison & Video

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Convergence issue... I tried to manually fix it through the menu option without any luck. The convergence does curve at the top and bottom of the screen.


It seems the solder is broken in Vertical Convergence Amplifiers or it is damage internally. This model has 2 Conv. Amps: 1 for Horizontal (Red, Green and Blue) and 1 for Vertical Convergence output (Red, Green and Blue), if the convergence does curve at the top and bottom, it is because Vertical Converegence output is no good. The Conv. Amp. costs around 20 dlls. Thats why you can not fix it with the Menu option. Good luck!

Nov 13, 2009 | Philips 60PP9202 60" Rear Projection...

1 Answer

The picture looks 3D


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. 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 photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You 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

Oct 03, 2009 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

Yellowish green hump/curve at bottom of screen. Blue is at fault


Easy one of the two convergance chips
has failed .they cost about 10-30$ etch
so dont let them over charge you ,if
you decide to get it repaired

Jun 26, 2009 | Toshiba 61HX70 61" Rear Projection...

1 Answer

50hx70 blue projection light is concaced at top and bottom of tv


When the convergence amplifier ICs go bad (STK392-xxx), they RARELY cause more than one color to go out. The fact that the top and bottom of the picture are effected indicates the vertical convergence IC. Replace both, and while you're in there check the bias resistors... it is likely one of these is open. Once the ICs have been replaced (as well as any open resistors), customer convergence followed up with the auto convergence should do the trick.

Nov 19, 2008 | Toshiba 50HX70 50" Rear Projection...

2 Answers

52 inch rca hdtv has red blue green lines through the top of it the picture is curved and its 3d looking


It seems convergence problem in your tv.
Let me know model number to help you out in better way.

Sep 27, 2008 | Televison & Video

1 Answer

CONVERGENCE PROBLEM IN TOSHIBA 43H70


Replace both STK392-110 convergence IC's with Toshiba or Sanyo brand........no cheap junk IC's !!!.................T.

Aug 16, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Blue halo on bottom 1/3 - Convergence issue with my 43HX70


HELLO SOUND LIKE YOU NEED TO CHANGE YOU IC CHIP'S ON THE CONVERGENCE BOARD.1!1 THERE WILL BE THREE OF THEM .!!! CHANGE ALL OF THEM AND THIS SHOULD FIX YOUR SET. "GOOD LUCK"

Aug 13, 2008 | Toshiba 43HX70 43" Rear Projection...

1 Answer

Blue lines on the screen


Remove Convergence / power supply circuit board...replace
convergence IC's with first quality ....either Philips,Toshiba or
best choice = upgrade to Hitachi = CZ 01341....let me know
if you have ? 's............T.

Feb 12, 2008 | Televison & Video

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