Sony Bravia KDL-55EX713 - No picture

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  • chlanman
    Member
    • Oct 2014
    • 15
    • canada

    #21
    Re: Sony Bravia KDL-55EX713 - No picture

    THanks!!!... Slowly learning

    Comment

    • chlanman
      Member
      • Oct 2014
      • 15
      • canada

      #22
      Re: Sony Bravia KDL-55EX713 - No picture

      Originally posted by budm
      "Sorry but whats a bad panel? If its a bad panel is the tv pretty much scrap?"
      If you have both cables disconnected, do you still hear clicking sound?
      Tried it today.
      If i have both cables disconnected(LVDS cable installed) there is still a clicking noise coming from the t-con. Held it up to my ear and its definetly coming from the tcon

      What can "click" in the tcon board?
      Replace Tcon im assuming?

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #23
        Re: Sony Bravia KDL-55EX713 - No picture

        There may be shorted circuits on the T-CON so the switching power supply on the T-CON is turning on and off.
        I see five switching PS on the board.
        Last edited by budm; 11-05-2014, 05:47 PM.
        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

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #24
          Re: Sony Bravia KDL-55EX713 - No picture

          Oops, double posted.
          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

          • chlanman
            Member
            • Oct 2014
            • 15
            • canada

            #25
            Re: Sony Bravia KDL-55EX713 - No picture

            Originally posted by budm
            There may be shorted circuits on the T-CON so the switching power supply on the T-CON is turning on and off.
            I see five switching PS on the board.
            could you circle them for me? How do i check them?

            Thanks!

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA

              #26
              Re: Sony Bravia KDL-55EX713 - No picture

              Inductors LD1, 2, 3, 6, and 7 are the inductors for the switching power supplies.
              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

              • chlanman
                Member
                • Oct 2014
                • 15
                • canada

                #27
                Re: Sony Bravia KDL-55EX713 - No picture

                Is there anywhere i can find the schematics for this tv?

                Comment

                • Neelix
                  Senior Member
                  • Oct 2013
                  • 145
                  • South Africa

                  #28
                  Re: Sony Bravia KDL-55EX713 - No picture

                  In the service manuals I seen so far for Bravia TVs, the schematics are not included and the reason for that according to Sony is that part level repair of the boards are too complicated. So it very unlikely that you will find schematics for your TV

                  Comment

                  • RepairTV
                    New Member
                    • May 2018
                    • 1
                    • Canada

                    #29
                    Re: Sony Bravia KDL-55EX713 - No picture

                    I have the same tv like this kdl55ex713, it have band of vertical lines, intermitant picture bad.
                    When I put menu, the lines is missing, picture ok, so I am sure problem is T-CON, not the panel.
                    If the menu is clear, that mean panel is ok.

                    Comment

                    • nomoresonys
                      Badcaps Legend
                      • Jan 2013
                      • 12192
                      • U.S.

                      #30
                      Re: Sony Bravia KDL-55EX713 - No picture

                      Well you convinced me, I'd try a replacement tcon.

                      Comment

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