Samsung CK-21H1TR

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  • ragis
    Senior Member
    • Mar 2013
    • 51
    • Bulgaria

    #1

    Samsung CK-21H1TR

    Hey guys,
    I'm having a problem with my CRT TV it has color lines on top of it's screen.
    The problem is similar like this youtube video: http://www.youtube.com/watch?v=1FwcILZ2MoI

    I replaced 2 caps that i think were bad:

    100uf 25V
    2200uf 25V

    They were next to the vertical source, but the lines are still there...

    So can you help me solving this ?

    Here's some more info:

    Chassis: S15A
    ICs: TDA8842 S1, TDA8356, SAA5531PS/M4/0298

    I think the vertical source is TDA8356

    Thanks a lot, waiting your reply

    Here's a photo of the chassis: http://store.picbg.net/pubpic/4E/8E/...8713434e8e.JPG
    Last edited by ragis; 03-26-2013, 12:54 PM.
  • Alastair E
    Chief Womble
    • Mar 2013
    • 1963
    • U.K.

    #2
    Re: Samsung CK-21H1TR

    Do you know if the lines are teletext lines or flyback lines--they are quite different.

    Is the field folded over?

    Are the supplies to the field O/P stage correct?

    What effect does V-lin, Top-lin and height adjustments have?
    TELEFIX

    How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
    http://www.irf.com/technical-info/appnotes/an-1088.pdf
    PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

    Comment

    • ragis
      Senior Member
      • Mar 2013
      • 51
      • Bulgaria

      #3
      Re: Samsung CK-21H1TR

      The lines are flyback, and the field is not folded over.
      I can't tell you the other info(i know it's dumb) because i'm not a specialist and the only thing i have is multimeter and soldering iron... I'm trying to DIY repair my TV.
      Thanks again for the fast reply.

      Comment

      • Alastair E
        Chief Womble
        • Mar 2013
        • 1963
        • U.K.

        #4
        Re: Samsung CK-21H1TR

        Look around the field output stages and there'll be small presets.

        They should be labelled what they do.
        TELEFIX

        How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
        http://www.irf.com/technical-info/appnotes/an-1088.pdf
        PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

        Comment

        • ragis
          Senior Member
          • Mar 2013
          • 51
          • Bulgaria

          #5
          Re: Samsung CK-21H1TR

          Ok, problem solved.It was bad cap C304(22uF/160V).Thanks again

          Comment

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