42" LG tv,,,shuts off ?

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  • cvcman
    New Member
    • Feb 2016
    • 3
    • usa

    #1

    42" LG tv,,,shuts off ?

    Hello,
    I have a 42" LG LCD tv,,,at times it will shutoff and the red corner light blinks,,,,if you turn it back on it comes on fine and MAY be ok for days/weeks...then it may do it 4 times in an hour..

    Is there a known repair for this issue ??? I see some say theirs goes off and on...mine does NOT come back on unless you turn it back on with the remote..

    Thx
  • ReeceyBurger123
    Never Give Up !
    • May 2014
    • 7325
    • Britain

    #2
    Re: 42" LG tv,,,shuts off ?

    We need more info than that, if your not aware there are over 500 variants of 42" size Lg Tv's all with their own little faults. Give us the following:

    Model
    Images of boards inside the Tv
    Voltages checked ?
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: 42" LG tv,,,shuts off ?

      Please give us more details information. Model? Pictures that show how all the boards are connected? History of the TV?
      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

      Comment

      • cvcman
        New Member
        • Feb 2016
        • 3
        • usa

        #4
        Re: 42" LG tv,,,shuts off ?

        opps sorry,,,here is the model 42LK520...incoming voltage is fine

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: 42" LG tv,,,shuts off ?

          Pictures? You need to take DCV reding at the connectors of the power supply board at least when the TV is working and when it is not working so you can see what control signals or Voltages are missing.
          You should also re-seat the cables, tight up all the boards mounting screws, and visual inspection.
          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

          Comment

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