lg 32le5300 no power/back light

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  • tocold4u2
    Badcaps Veteran
    • Dec 2012
    • 284
    • usa

    #1

    lg 32le5300 no power/back light

    Is there any. post on a lg32le5300? I just pick up a set
    and everything measured good except 24v. i only had 18
  • sordids999
    Badcaps Legend
    • May 2013
    • 2156
    • uk

    #2
    Re: lg 32le5300 no power/back light

    post some pictures then someone will help you more

    Comment

    • tocold4u2
      Badcaps Veteran
      • Dec 2012
      • 284
      • usa

      #3
      Re: lg 32le5300 no power/back light

      Not sure how the pictures are gona look..but it s. worth a shot
      Attached Files

      Comment

      • tocold4u2
        Badcaps Veteran
        • Dec 2012
        • 284
        • usa

        #4
        Re: lg 32le5300 no power/back light

        Voltage on power board
        0 = nc
        12.09 =12
        12.09 =12
        12.09 =12
        0=G
        0=G
        3.47=3.5
        3.47=3.5
        0 =G
        0 =G
        18.24 =24v
        3.27=pwr on

        Comment

        • tocold4u2
          Badcaps Veteran
          • Dec 2012
          • 284
          • usa

          #5
          Re: lg 32le5300 no power/back light

          The 2 nd from bottom reading is
          18.42 v =20V

          Comment

          • tocold4u2
            Badcaps Veteran
            • Dec 2012
            • 284
            • usa

            #6
            Re: lg 32le5300 no power/back light

            Can the backlight be forced on with a jumper or not ?
            First time seeing one set up like this with a backlight controlboard
            mounted on the powersupply.

            Comment

            • tocold4u2
              Badcaps Veteran
              • Dec 2012
              • 284
              • usa

              #7
              Re: lg 32le5300 no power/back light

              Im guessing the fault is in the led driver board..but not certian

              Comment

              • tocold4u2
                Badcaps Veteran
                • Dec 2012
                • 284
                • usa

                #8
                Re: lg 32le5300 no power/back light

                Ok i was able to. jump and make the back light come on.
                Anyone have luck at finding the fault on the control board??

                Comment

                • tonyuk
                  Badcaps Veteran
                  • Feb 2014
                  • 238
                  • uk

                  #9
                  Re: lg 32le5300 no power/back light

                  if you turn tv on in a dark room do you see a flash on screen ?

                  Comment

                  • tocold4u2
                    Badcaps Veteran
                    • Dec 2012
                    • 284
                    • usa

                    #10
                    Re: lg 32le5300 no power/back light

                    No..no flash . even tried to shine a flashlight...cant seea pic
                    but i was able to jumper the backlight on.

                    Comment

                    • tocold4u2
                      Badcaps Veteran
                      • Dec 2012
                      • 284
                      • usa

                      #11
                      Re: lg 32le5300 no power/back light

                      I did notice on voltage on power supply i don t have a
                      3.5 v reading. it is 0
                      And

                      Comment

                      • tocold4u2
                        Badcaps Veteran
                        • Dec 2012
                        • 284
                        • usa

                        #12
                        Re: lg 32le5300 no power/back light

                        I dont have a 3.5 v on back.light dim and a 3.5 both were
                        0 v. so wouldnt the power supply be the fault.

                        Comment

                        • tocold4u2
                          Badcaps Veteran
                          • Dec 2012
                          • 284
                          • usa

                          #13
                          Re: lg 32le5300 no power/back light

                          When the back light is forced on..i have all the correct voltages
                          so i will try to find a controll board

                          Comment

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