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back light problem in jvc lt-42ex19

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    back light problem in jvc lt-42ex19

    hi to all
    in this lcd tv with inverter board( kls-ee42tkh18 rev:0.97) back light gone to protect.2 mosfet Q3 &Q4 damged and replaced with new one.
    When you turn off the TV for an hour or more, everything is normal after turning on and the device is working fine without getting hot any part in inverter board..
    Now you just have to turn the device on and off You can hear a lot of noise from the inverter and backlight gone to protect.
    oz9966sn is controller back light ic.
    please advaise me .
    tnx
    https://cdn.badcaps-static.com/pdfs/...1794855152.pdf
    Attached Files
    Last edited by boyebaran; 06-03-2019, 11:35 PM.
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