Sony KDL-40v3000 no picture or sound

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  • tab_a
    Member
    • Oct 2011
    • 10
    #1

    Sony KDL-40v3000 no picture or sound

    Sudden loss of picture and sound. Did some googling and found that a bad backlight bulb was common. Sure enough--one was out. Replaced it and backlight now works but still no picture or sound.

    Power button works and green light is lit. No flashing red code. Voltages at cables on DF and GF boards are good. Fuses on all boards are good.

    I did download the service manual, and have moderate experience with PCBs, but am not sure where to start looking for this problem.

    Thanks!
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