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Convergence problem with samsung sp42w5hfx

Hi i have a samsung sp42w5hfx rear projection, i have changed both ic's and one pico fuse, in service menu i can only move green red and blue will not converge.....can anyone help me on this matter...any thanks

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  • gb12345 Mar 15, 2008

    I have same problem any clue.

  • shaun dolphin Jun 03, 2008

    I have same prob too is this a common fault ? Changed both convergence chips STK392-040 - Now only green and red will move - Blue will move up and down but not left and right also one of the STK's is getting very hot any ideas ???

  • Sarah29 May 11, 2010

    I have same problem any clue.



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I have same prob too is this a common fault ? Changed both convergence chips STK392-040 - Now only green and red will move - Blue will move up and down but not left and right also one of the STK's is getting very hot any ideas ???

Posted on Jun 03, 2008

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Post your email address & I will send convergence set up manual.


Posted on Nov 04, 2007

  • chris pursloe
    chris pursloe Jun 04, 2008


    Very strange problem your all having.

    The guy who says one ic is getting hot this is mormall im concerned about the cold ic.

    Ok all of you who cant move the blue try swapping the ics over and see if blue now moves properly but the red doesnt if this is the case then there is either a problem with one of the new ics or a problem with the circuit.

    As I said I have never had this problem after replacing the ICs but will try & see what I can find out.



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You may still one more resistor opened , samsung most of the time its 2 low ohms but can be 3 it will be same value as other 2. I think they are 2.7ohms or 3.9 How to Enter Service Menu for convergence Turn TV off Press Mute 1-8-2-power now you should be in convergence use vol- and vol+ to select an item Use mute and menu to adjust when done Press ADD to save adjustments made.

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If you bought a kit from sites such as go back and ask for help. If you bought the parts over the internet without instructions you have two common problems...1) Bad/Fake chips... or 2) You did the repair wrong - because you lack proper instrucitons.

Pico fuses - yes - they can be one of many secondary reasons convergence is not fixed on Samsung models.

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You will need two STK392-560 Convergence ICs and you will also need two of the 3.5 amp pico fuses as Sonys will always blow at least two of the Pico fuses. You can get replacement ICs and Pico fuses at the fiollowing link and they provide free instalation instructions. Heres the link.

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Compare IC connections with meter = check solder joints to
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brand & part number was installed...........T.
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