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42PT350R nedd help isolating the problem

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    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

    #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


      #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


        #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


          #5
          Re: 42PT350R nedd help isolating the problem

          Thank you very much ReecyBurger123

          Comment


            #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


              #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


                #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


                  #9
                  Re: 42PT350R nedd help isolating the problem

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

                  Comment


                    #10
                    Re: 42PT350R nedd help isolating the problem

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

                    Found this see if it will help .

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