LG 60PB5600 Plasma Won't Turn On

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  • SpeedAddiction
    Member
    • Jan 2016
    • 21
    • US

    #1

    LG 60PB5600 Plasma Won't Turn On

    I think I've narrowed down the problem but wanted to run it past everyone first to make sure that I'm not missing something.

    The TV initially fell victim to a very close proximity lighting strike which left it with the inability to turn on and unsightly PSU / Main Board burns. After swapping both boards out it still refused to turn on.

    So after extensive reading of these forums and troubleshooting I have the following results.

    With P231 Unplugged from CTRL Board and EXT_AUTO_GEN jumped along with RL_ON / 5.2 jumped on the PSU the TV sprang to life in test mode.

    This should point to the Main Board being bad but since it was just replaced with a Main Board from ShopJimmy.com I wanted to make sure it wasn't the Power Button / IR Receiver. Checking Voltages from p501 connector on Main Board while hitting Power on TV and remote showed the following.

    1 - 0
    2 - 3.25v
    3 - 3.25v
    4 - 0
    5 - 3.21v
    6 - .203 (I think this is with the MM since VS TP tested the same way)
    7 - 3.20v - Jumps all over when hitting the TV power button
    8 - 3.20v
    9 - 0
    10 - 3.14v - Jumps all over when hitting the remote power button

    So, does it look like the Main Board? Anything else I should test before I claim it's bad?
    Attached Files
  • SpeedAddiction
    Member
    • Jan 2016
    • 21
    • US

    #2
    Re: LG 60PB5600 Plasma Won't Turn On

    Does anyone have any additional input or tests I should try out?

    Comment

    • Hamie
      Badcaps Legend
      • Apr 2014
      • 1383
      • UK

      #3
      Re: LG 60PB5600 Plasma Won't Turn On

      You have a faulty mainboard.

      Shop Jimmy are not immune to selling duff parts as many on here will testify to.

      Comment

      • SpeedAddiction
        Member
        • Jan 2016
        • 21
        • US

        #4
        Re: LG 60PB5600 Plasma Won't Turn On

        Great. Thanks for the confirmation. MainBoard going back.

        Comment

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