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LG 55LM4600 Repair Log

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    #1

    LG 55LM4600 Repair Log

    Good afternoon!
    I cannot find this model in the search history so I will start one for repairing the one I was given.
    Symptons:
    TV turns on. LG Logo is displayed. Tv Shuts down. PSU board has an LED that flashes 5 Times. Quick check of the voltages show we have the 3.5v Power On and Standby. We also have our 12V, no 24V. I will be checking the other voltages and posting a pic. I cannot find a service manual so if someone has one or a link to it, that would be awesome. Pics in a day or two.
    Tags: None
    #2
    Re: LG 55LM4600 Repair Log

    Ok DMM set to wrong settings. Doh!

    Pwr-On: 3.5v
    12v: 12V
    24V: 24v (had it set to 20V)
    P-Dim2: 1.8v
    Error: 3.5v
    P-Dim: 1.8v
    Drv-On: 3.5v
    Vsync-In: 1.8v

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      #3
      Re: LG 55LM4600 Repair Log

      We NEED pictures of the whole backside of the TV showing all the boards.
      Power supply board P/N?
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

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