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LG 55LS4500 No Standby light will not power on

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    #21
    Re: LG 55LS4500 No Standby light will not power on

    budm....set up jumper resistors and the LED backlights come on.
    any additional tests?

    Comment


      #22
      Re: LG 55LS4500 No Standby light will not power on

      I'd replace mainboard.

      Comment


        #23
        Re: LG 55LS4500 No Standby light will not power on

        Originally posted by RFITTS46 View Post
        budm....set up jumper resistors and the LED backlights come on.
        any additional tests?
        Main board issue.
        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


          #24
          Re: LG 55LS4500 No Standby light will not power on

          how does one go about sourcing a known good replacement?

          shopjimmy does not have one

          eBay?

          anything else I might want to be aware of?

          Comment


            #25
            Re: LG 55LS4500 No Standby light will not power on

            There's some on ebay here, I'm not sure which sticker numbers need to be matched up for compatibility. https://www.ebay.com/sch/i.html?_fro...acat=0&_sop=15

            Comment


              #26
              Re: LG 55LS4500 No Standby light will not power on

              okay I don't usually purchase something unless I know what I am buying.

              The control board has an orange sticker bottom left, next to mounting screw. It states:

              55L84500-UD.AUSWLJR
              VER.3.20.12
              PM.VER.3.1.2 Y.C hand written 2

              How does one go about making sure the control board is a duplicate or a compatible board?


              Other places selling a control board for a LG 55LS4500-UD on the internet state:
              Part Number: EBT62227807
              Identifying Numbers That Appear On This Specific Part: EAX64437505(1.0) / EBR75708201
              Works in televisions with SVC code: 55LS4500-UD.AUSWLUR

              One other thing, the control board main IC had two dobs of clear translucent silicone securing the black heatsink. Some boards on Ebay have white dobs of silicone have these been repaired?????
              Last edited by RFITTS46; 07-10-2019, 07:55 AM.

              Comment


                #27
                Re: LG 55LS4500 No Standby light will not power on

                Ok, looks like you need to match your svc code if yours is 55LS4500-UD.AUSWLUR then those boards should work. I did notice that there's an S in the code where yours is an 8, I see the J and U are different too, I don't know what the difference is if there is any?? I know the boards look the same.
                Last edited by nomoresonys; 07-10-2019, 09:37 AM.

                Comment


                  #28
                  Re: LG 55LS4500 No Standby light will not power on

                  The fourth position represents the year of development model and the J is type of digital tuner.
                  Last edited by nomoresonys; 07-10-2019, 09:39 AM.

                  Comment


                    #29
                    Re: LG 55LS4500 No Standby light will not power on

                    I guess the easiest way is to call or email shopjimmy or another trusted entity and ask them how to match them up.
                    Last edited by nomoresonys; 07-10-2019, 10:10 AM.

                    Comment


                      #30
                      Re: LG 55LS4500 No Standby light will not power on

                      Yep, contact Shopjimmy.
                      https://www.shopjimmy.com/catalogsea...?q=LG+55LS4500
                      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


                        #31
                        Re: LG 55LS4500 No Standby light will not power on

                        Current status purchased a used control board off of Ebay. Will status outcome soon as it gets installed.

                        Comment


                          #32
                          Re: LG 55LS4500 No Standby light will not power on

                          New used control board installed. up and running.

                          Comment


                            #33
                            Re: LG 55LS4500 No Standby light will not power on

                            Good to hear, thanks for report.

                            Comment

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