Burned led on this LG50LN5100

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  • ivtec
    Badcaps Legend
    • Dec 2008
    • 1967
    • USA
    #1

    Burned led on this LG50LN5100

    Hi guys i stripped this LG50LN5100 and found a Burned led,it's the L 8th strip counting from the top; check attach. i don't have 24v dc power sup. but i have 18 and 12 dc,can i use it to check if there are other bad leds? Thanks
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    • jotto
      Member
      • May 2012
      • 12
      • USA
      #2
      Re: Burned led on this LG50LN5100

      you can just use a digital meter on diode check and it will light up the led if it is good.

        Comment

        • kc8adu
          Super Moderator
          • Nov 2003
          • 8832
          • U.S.A!
          #3
          Re: Burned led on this LG50LN5100

          strip is toast pardon the pun.common to see burnups on the ln sets.

            Comment

            • ivtec
              Badcaps Legend
              • Dec 2008
              • 1967
              • USA
              #4
              Re: Burned led on this LG50LN5100

              Originally posted by kc8adu
              strip is toast pardon the pun.common to see burnups on the ln sets.
              I know it's cut off too,it seems that are no strips of this model;HC500DUN-VCFP1-llXX it's the L on the 8th strip counting from the top,jimmy doesn't have it.

                Comment

                • ivtec
                  Badcaps Legend
                  • Dec 2008
                  • 1967
                  • USA
                  #5
                  Re: Burned led on this LG50LN5100

                  Originally posted by jotto
                  you can just use a digital meter on diode check and it will light up the led if it is good.
                  Thanks jotto; i removed the burned led and soldered the circuit checked with diode position strip by strip and i have about 6 leds bad in the whole board ,i'm going to wait for strips from Jimmy.com he's out of stock now.

                    Comment

                    • jotto
                      Member
                      • May 2012
                      • 12
                      • USA
                      #6
                      Re: Burned led on this LG50LN5100

                      If you don't want to wait, call Pacific Illumination they might be able to make them for you. I used another company years ago before LEDs were installed in LCD units, but I can't remember the name.

                      Send them a email at pacificillumination@gmail.com, since this will be a order they might send you to MCM. You will probably have to install your harness to the strip. MCM only sells 12vdc units, didn't see any 24vdc. They are geared to primarily casinos.

                        Comment

                        • Alastair E
                          Chief Womble
                          • Mar 2013
                          • 1963
                          • U.K.
                          #7
                          Re: Burned led on this LG50LN5100

                          Why not cut up any old LG LED strip, take one complete with lens and piggy-back where the original was

                          Use heatsink plaster to stick in place and thin leads to connect up, just align it reasonably accurately so it lines up with hole in the white reflector sheet--Job done!

                          Did one just before leaving work today on an LG 32" thing, whole job from back off, to pic on screen 20 mins!

                          Simples.....
                          TELEFIX

                          How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
                          http://www.irf.com/technical-info/appnotes/an-1088.pdf
                          PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

                            Comment

                            • ivtec
                              Badcaps Legend
                              • Dec 2008
                              • 1967
                              • USA
                              #8
                              Re: Burned led on this LG50LN5100

                              Originally posted by Alastair E
                              Why not cut up any old LG LED strip, take one complete with lens and piggy-back where the original was

                              Use heatsink plaster to stick in place and thin leads to connect up, just align it reasonably accurately so it lines up with hole in the white reflector sheet--Job done!

                              Did one just before leaving work today on an LG 32" thing, whole job from back off, to pic on screen 20 mins!

                              Simples.....
                              Thanks Alastair i only have strips from a 32 inch Sumsung they may not fit

                                Comment

                                • ReeceyBurger123
                                  Never Give Up !
                                  • May 2014
                                  • 7325
                                  • Britain
                                  #9
                                  Re: Burned led on this LG50LN5100

                                  More shit failing, also I agree with Alis method cheap but cheerful
                                  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

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