LG 42LN5300 - Lightning Strike Victim

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  • BriSpe
    New Member
    • Sep 2014
    • 4
    • United States
    #1

    LG 42LN5300 - Lightning Strike Victim

    My new LG TV, which I purchased to replace my Vizio with no sound just over a month ago, recently took a crap from what was most likely a lightning strike (along with my DirectTV box, modem, garage door opener, and ice maker). Since the DirectTV box also was fried, could it have messed up the TV via the HDMI cable? When I plug the TV in and turn it on, the screen has an irregular strobe/flash going on with random horizontal white lines flashing. There is no picture, just black screen with white lines and flashing back-lighting. Once on, it does this until I unplug it (won't stop with power button). Between this and my Vizio, this is my first time messing with TVs. Should I just buy a new main board? Could any other boards be bad? I checked the fuse on the power board and it was still good. I also checked the voltages going out of the power board and they seemed OK too. Any ideas on what to check first?

    Thanks,
    Brian
    Tags: None
    • BriSpe
      New Member
      • Sep 2014
      • 4
      • United States
      #2
      Re: LG 42LN5300 - Lightning Strike Victim

      Found a main board for cheap and swapped it. Works perfect now.

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