Question about Sony Televison & Video

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Re my SONY videoscope kpr46ex35: I get a picture sometimes for a few minutes then I hear a pop and then only sound comes out. Do you have any idea what this might be causing this?

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  • info16939 Nov 09, 2010

    We have not gotten any picture the last 2 times we turn it on. It is on, open and has sound. No picture at all now. I think the last pop was that, the last...

  • info16939 Nov 09, 2010

    We also found a noisy transformer but could not find any bad transformers or fuses.

  • info16939 Nov 11, 2010

    Do you know where i might find a detailed schematic so we can find these components?

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  • Sony Master
  • 5,138 Answers

You need to remove the back on TV and Watch to see what is making the popping sound and where is it coming from? It sounds like one of the Tubes has a high voltage leak or Trippler block could be leaking high voltage or FBT flyback Transfomer could have a pin hole in it leaking out high voltage

Posted on Nov 09, 2010

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  • ladywinn
    ladywinn Nov 09, 2010

    CK the hori output Transistor if it is shorted then problem will be the FBT flyback Transfomer
    ACME 1-800-575-9833 Also CK the high voltage capaciotr (small blue cap) one that feeds to the hori output Transistor 2Kolts

  • ladywinn
    ladywinn Nov 09, 2010

    2k volt cap

  • ladywinn
    ladywinn Nov 11, 2010

    retrevo.com might have it, Do you know what the FBT flyback Transfomer is ?It will be on your deflection board and has 2 leads coming up and out.it should be gray FBT,over on the right hand side is the Hori output Transistor and next to it is the small blue capacitor,Look and see if this cap is burt hole on it.

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