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Convergence issue with the red color tube - Televison & Video

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  • daviditch Aug 21, 2008

    BIG IRISH.....



    Thank you so much for the information. it was very helpful.

    Sincerely,

    ~daviditch~

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Good Day, daviditch;
Yes sir, it sounds like you have a convergence problem. You should contact an Authorized Service Center and get an estimate before repairs begin. It will cost about $300.00 to $650.00 depending where you are located and the Model, Brand of the TV.
Good Luck, big IRISH.

Posted on Aug 21, 2008

  • MICHAEL MULLINS Aug 22, 2008

    Good Day, daviditch;

    You are welcome, I was glad to help.

    big IRISH.

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Posted on Jan 02, 2017

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1 Answer

How do i remove the green haze


one of two issues are possible here:

Model indicated has a convergence circuit= colors are skewed or even 3d looking is convergence problem. Set has Akai name but is made by Samsung--if a convergence issue can be a do it yourself repair.

I can explain what is needed if that is the problem (see some attached photos).

The other issue seen is if on a black and white picture (color turned off) stand back and look at the screen= is it yellow looking or gray?

If yellow looking the Glycol (a cooling fluid in each tube) is contaminated- usually in these sets the blue is first= no real blue leaves a yellow screen.

Look at the photos and try to tell me which issue you have.


4_1_2012_6_39_23_pm.jpg4_1_2012_6_39_46_pm.jpg4_1_2012_6_40_11_pm.jpg

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1 Answer

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

Red is ghosting to the right. i replaced the convergence tubes about 6 months ago. went with the expensive ones "not the cheapy's" used heat sync putty stuff and everything. the problem is...


Yes,the tv problems it is the same,it is the tv convergence problems again,now it just color it is shaded in shadows pictures,instead of wavies mis colors R,G,B mis alignments.Yes.The tv convergence board it is the problems,must be repair again.

Apr 27, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

I have a toshiba tv model tp50g90 I have replaced the convergence chips stk392-110 convergence was corrected but I have a problem yet red not managed to focus on the user menu in the option of...


Thats the way it works. You have to adjust the other colors to the red. You adjust the red from the back of the set using the convergence magnets on the tubes. Then you adjust the other colors to match the red. It's much easier if you have the plastic screen from Toshiba used to align this set.

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1 Answer

Getting a picture but double visioned and red lines running through it


This is 1 of 2 problems.

1; Convergence(depending on the model of the TV, the convergence ic's will have cold solder joints) 2: vertical ic issues.

If they are different colored lines & the picture also bends, it's a convergence problem. Else suspect a vertical problem. In the case of vertical issues, most of the time it's a defective capacitor (or cold solder joints.).

if it's the 3-crt kind of big screen, it's possible for one of the tubes to be going bad.

Good luck!

Feb 28, 2010 | Televison & Video

1 Answer

Have a rear projection tv 55pp9352. Has green halos around objects on the screen. Checked convergence and all red and blue line up except that on the outside edges the convergence crosses are somewhat...


yes, you need remplace the liquid in the picture tube green and blue, and need remplace 2 parties stk-392-120 and resistences 6.8 ohms at 1/2 watts

Jan 05, 2010 | Televison & Video

1 Answer

Red color convergence issue; Red lines are curved


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 $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

Nov 24, 2009 | Televison & Video

1 Answer

I was just given this t.v because friends couldn't figure out what is wrong with itl. The colors don't line up right,looks kinda blurry depending on the lighting of the program being watched. How do i fix...


According to the manual:
1) go to the "TV Main Menu"
2) Select "Screen"
3) Select Adjust Projection TV (obviously only if a projection TV).
This then allows you to adjust the TV's 3-colors. Selecting GREEN CENTERING brings up a control panel that lets you center the green projection tube on the screen. Selecting RED CONVERGENCE or BLUE CONVERGENCE lets you align the Red & Blue projector tubes. Centre the green projector tube 1st. Then adjust the red & blue until the test pattern on the TV screen appers white.
Good Luck!

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1 Answer

Wavy Red lines


hi there,
if you are familiar with electronics you can do this :adjust voltage at hight voltage block it has screen and focus written on it and comes from flyback transformer,but be careful cause it can be to dangerous if you touch something else,ah,ah adjust only the one that says screen and has a R on top,that means red,ok,thanks.

Jun 19, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Convergence


Color tubes are OK. Do not adjust. The issue at hand is called
convergence alignment.The repair involves-------
1)Pull chassis
2)Replace convergence IC's
3)Recheck alignment
work should be done by a skilled technician........T.

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