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I have tv Sony KV-1484MTA with unstable view - picture is good or only horizontal, heave line. Please, I need help and also repair manuals with schematic.

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  • Bogdan Olejarczyk May 20, 2010

    I change 2 electrolytic caps (c552 and c558). The picture is good now. Best regards, olejarczykb

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I didn't understand what you meant by horizontal heave line. Do you mean to say that the picture shrinks to a line? Please provide this info so that we can continue with the diagnosis and troubleshoot as necessary.

Sai.

Posted on May 17, 2010

  • 2 more comments 
  • Bogdan Olejarczyk May 17, 2010

    Yes, the picture shrinks to a line. If, I a lightly strike in the side of tv the picture is again good. I find R803 and R806 (near IC551) with a bad solder and I corrected it, but still is not well. What can I do more? Best regards, Bogdan

  • eagle338
    eagle338 May 17, 2010

    The problem you have described indicates a vertical scan circuit failure. First think to look for is bad electrolytic caps that are cracked at the top or leaking. I would also check for dry solder joints in the same circuit since the picture is returning back to normal after tapping.

  • Bogdan Olejarczyk May 20, 2010

    Thank you very much, I change 2 electrolytic caps (c552 and c558) - picture is good now. But for the future, please send me manuals with schematic for my tv. Best regards, olejarczykb.

  • eagle338
    eagle338 May 21, 2010

    Great to hear that! Thank you for using Fixya!

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