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No picture or sound

While watching tv some colors flickered on the screen and then both sound and picture went out with only a thumping sound coming from the speakers. all wires seems to be connected.

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  • Scott
    Scott Jun 07, 2008

    Same problem - I have a Sony kp-53v45. Ticking appears to be coming from the Flyback. (With cover removed) A small light with a black cover over it near the flyback with a lead leading into the flyback on the motherboard (diagnostic indicators?)  is flashing with the beat of the thump noise indicating a possible short? Sounds like flyback transformer attempting to power up and shutting down cycling over and over fast. Picture tubes never light up. Is this a problem with the input side or output side of the transformer? How can I diagnose this tv set further? Any hep greatly appreciated! - Scotty

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What model number is your set?

Posted on Feb 25, 2008


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