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Samsung UN55D7000LF Display issue

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    #1

    Samsung UN55D7000LF Display issue

    Hi,
    Having an issue with the display. Is this a ribbon issue? Is the same in all inputs and menu.
    Attached Files
    Tags: None
    #2
    Re: Samsung UN55D7000LF Display issue

    It's a bad panel.
    you'd need to take it down to the panel, press on the ribbons to see if the picture comes back.

    Comment

      #3
      Re: Samsung UN55D7000LF Display issue

      Is this the problem?
      The ribbon is missing
      Attached Files

      Comment

        #4
        Re: Samsung UN55D7000LF Display issue

        yep... that's is likely the ribbon that generates that side. Must be some story behind this one as I don't think it would have just disappeared... :-)

        Comment

          #5
          Re: Samsung UN55D7000LF Display issue

          History of this TV? Someone/shop else worked on this unit before?
          That black vertical line is due to bad panel.
          Last edited by budm; 11-02-2015, 12:07 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

            #6
            Re: Samsung UN55D7000LF Display issue

            Most likely, if you put that ribbon cable back, it won't turn on at all.
            Do you see some damages at the T-Con board, panel's PCB/tabs?

            Comment

              #7
              Re: Samsung UN55D7000LF Display issue

              The history is I bought it from a guy who had a bunch of tvs that was moving. He told me the ribbon was the problem, I wanted to confirm before I bought it, which seems it may not be.

              The tcon board looks in good shape.

              Comment

                #8
                Re: Samsung UN55D7000LF Display issue

                Is it for sure bad display even with that ribbon missing?

                Comment

                  #9
                  Re: Samsung UN55D7000LF Display issue

                  have you tried swopping the ribbon cable to the other side? if so what image do you get then.

                  Comment

                    #10
                    Re: Samsung UN55D7000LF Display issue

                    Originally posted by vinceroger69 View Post
                    have you tried swopping the ribbon cable to the other side? if so what image do you get then.
                    +1 Thats the best option to try.
                    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

                      #11
                      Re: Samsung UN55D7000LF Display issue

                      Swapped the ribbon.
                      Still have vertical bars. On same side
                      Attached Files

                      Comment

                        #12
                        Re: Samsung UN55D7000LF Display issue

                        Check for shoddy connections on some of the resistors and capacitors up on top of that FRP board that connect the ribbon cable to the panel on that side. I've seen a few instances where there is a bad connection or a bad solder joint on some of those SMD capacitors up on top of that board. If not your panels definitely bad
                        Did I leave the soldering iron on?

                        Comment

                          #13
                          Re: Samsung UN55D7000LF Display issue

                          bad panel i guess then but atleast you can either keep or sell the boards and led strips out of it to get some money back etc

                          Comment

                            #14
                            Re: Samsung UN55D7000LF Display issue

                            are these panels not repairable? Ive been told you can get the bonded tabs replaced?

                            Comment

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