42PT350R nedd help isolating the problem

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  • buchman
    Badcaps Veteran
    • Aug 2015
    • 283
    • greece
    #1

    42PT350R nedd help isolating the problem

    Hi guys,

    My T.V. has a clicking noise when I turn it on, but have no picture or sound.
    I have tested the VS and VA voltages and while all boards are connected, I don't get the correct measurement as stated on the back of the T.V.
    When I unplug all ribbons and boards only then I get the correct voltages on the PSU.
    I have cheked all the capacitors and they seem to be O.K (including the ESR).
    How do I pinpoint the bad board?
    Attached Files
    Tags: None
    • ReeceyBurger123
      Never Give Up !
      • May 2014
      • 7325
      • Britain
      #2
      Re: 42PT350R nedd help isolating the problem

      Use the search feature on the forum to help you find out how to diagnose shorted sustain board. As Psu voltages rise with them disconnected Psu is ok.
      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

        • buchman
          Badcaps Veteran
          • Aug 2015
          • 283
          • greece
          #3
          Re: 42PT350R nedd help isolating the problem

          Thanks for your comment.
          Unfortunately I couldn't find anything about how to diagnose shorted sustain board except of one thread that isn't help me much.
          What should I wright in the search box?

          Sorry and, thanks for the understanding.

            Comment

            • ReeceyBurger123
              Never Give Up !
              • May 2014
              • 7325
              • Britain
              #4
              Re: 42PT350R nedd help isolating the problem

              https://www.badcaps.net/forum/search...archid=7762376
              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

                • buchman
                  Badcaps Veteran
                  • Aug 2015
                  • 283
                  • greece
                  #5
                  Re: 42PT350R nedd help isolating the problem

                  Thank you very much ReecyBurger123

                    Comment

                    • ReeceyBurger123
                      Never Give Up !
                      • May 2014
                      • 7325
                      • Britain
                      #6
                      Re: 42PT350R nedd help isolating the problem

                      Any luck matey ?
                      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

                        • buchman
                          Badcaps Veteran
                          • Aug 2015
                          • 283
                          • greece
                          #7
                          Re: 42PT350R nedd help isolating the problem

                          Not yet unfortunately. I did found one thread that looks like the guy has the same problem like I do.
                          A few hours later suddenly the link that you have provided stopped working.
                          Attached Files
                          Last edited by buchman; 12-11-2016, 08:41 AM.

                            Comment

                            • ReeceyBurger123
                              Never Give Up !
                              • May 2014
                              • 7325
                              • Britain
                              #8
                              Re: 42PT350R nedd help isolating the problem

                              Hmm the search feature on here has become useless as or recent. Right have you a DMM ?
                              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

                                • buchman
                                  Badcaps Veteran
                                  • Aug 2015
                                  • 283
                                  • greece
                                  #9
                                  Re: 42PT350R nedd help isolating the problem

                                  Yes I have. Plus, I have ESR meter too.

                                    Comment

                                    • bikerbuddy
                                      Senior Member
                                      • Jun 2011
                                      • 134
                                      • USA
                                      #10
                                      Re: 42PT350R nedd help isolating the problem

                                      https://www.badcaps.net/forum/showth...ht=LG+42PT350R

                                      Found this see if it will help .

                                        Comment

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