Samsung UN46d6400 Tcon/Display

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  • tom thumb
    Senior Member
    • Jul 2013
    • 66
    • USA

    #1

    Samsung UN46d6400 Tcon/Display

    The display pulsates a line on the bottom of the display when turned on.
    I can sometimes see some picture in the pulses
    I get perfect sound and right half of the picture if I unplug the ribbon
    cable from T-con to the left half of the display.
    So Is the T-con bad or could it be the circuit board shorted out that is
    is connected to the display on that half of the display in other words is that
    half of the Panel Bad? and how can I tell without swapping a T-con board that
    as my luck would have it Shop-Jimmy is out of stock
    I also forced back light on according to Samsung Guide and
    the back light worked perfect. But whatever is shorted seems to be pulsating the back light as well as the picture. I am on Dial-Up so the pics may be too small to see I can attempt re-up larger ones if needed but I think you get what I mean about this TV

    Thanks Everyone
    Attached Files
  • freakaftr8
    Badcaps Legend
    • Oct 2012
    • 3743
    • USA

    #2
    Re: Samsung UN46d6400 Tcon/Display

    Im afraid it sounds like a faulty panel. What happens if you leave the ribbon plugged in to the bad side and disconnect the ribbon on the good side?
    Did I leave the soldering iron on?

    Comment

    • tom thumb
      Senior Member
      • Jul 2013
      • 66
      • USA

      #3
      Re: Samsung UN46d6400 Tcon/Display

      Bad side plugged in good side unplugged = pulsating picture brighter on good side may upload pic if that would help
      Attached Files
      Last edited by tom thumb; 12-12-2013, 01:02 PM. Reason: Ok I added Pic

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Samsung UN46d6400 Tcon/Display

        I would say you have bad panel.
        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

        • tom thumb
          Senior Member
          • Jul 2013
          • 66
          • USA

          #5
          Re: Samsung UN46d6400 Tcon/Display

          Ya I was afraid it was Panel

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: Samsung UN46d6400 Tcon/Display

            Seeing tons of D-Series 2011 Samsung dying recently on favourite auction sites, 90% with panel failures.
            Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
            For service manual, schematic, boardview (board view), datasheet, cad - use our search.

            Comment

            • tom thumb
              Senior Member
              • Jul 2013
              • 66
              • USA

              #7
              Re: Samsung UN46d6400 Tcon/Display

              Now Why Doesn't That Surprise Me

              Comment

              • tibimakai
                Badcaps Legend
                • Jan 2012
                • 3680
                • USA

                #8
                Re: Samsung UN46d6400 Tcon/Display

                I have just for parts, a 46D6420 3D, Bluetooth, wifi, etc TV with the same exact issue.
                Samsung went from capacitor issues to panel issues. I would say, that is an improvement.

                Comment

                • tom thumb
                  Senior Member
                  • Jul 2013
                  • 66
                  • USA

                  #9
                  Re: Samsung UN46d6400 Tcon/Display

                  Update The owner of the TV wants to try T con anyway and has ordered one
                  so I'll update after we try it.
                  Also I didn't notice before but with the bad side plugged in the T con makes a clicking noise
                  in time with the picture pulsing unplug bad side and plug in good side and there is no clicking.

                  Comment

                  • freakaftr8
                    Badcaps Legend
                    • Oct 2012
                    • 3743
                    • USA

                    #10
                    Re: Samsung UN46d6400 Tcon/Display

                    I think it's partially caused by heat issues. I have a you and 32 series 32 inch D series Samsung LCD and you have no idea how hot the LED backlight get around the edges of the screen its sad and I think this is a contributing factor to an LCD panel failing
                    Did I leave the soldering iron on?

                    Comment

                    • tom thumb
                      Senior Member
                      • Jul 2013
                      • 66
                      • USA

                      #11
                      Re: Samsung UN46d6400 Tcon/Display

                      Update Info Swap T-Con Same problem
                      Tv = Junk
                      Took Panel frame apart and found the problem
                      Burned Panel Wires on bad side (see pics) not the best quality pics But I show you the Good side of the Screen Versus The Bad Side
                      Every Samsung tv I work on have bad panels and I tell my customers
                      to never buy Samsung

                      I have had good luck with my Sharp Brand Tv's and wonder if anyone
                      else finds them to be a better Quality Or Not
                      Attached Files

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: Samsung UN46d6400 Tcon/Display

                        Sharp >>> Samsung for sure. Samsung QC is terrible.

                        Looks like ANOTHER dead panel, I've lost count for this week.
                        Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                        For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                        Comment

                        • freakaftr8
                          Badcaps Legend
                          • Oct 2012
                          • 3743
                          • USA

                          #13
                          Re: Samsung UN46d6400 Tcon/Display

                          Wow that one actually shorted to melt!
                          Did I leave the soldering iron on?

                          Comment

                          • budm
                            Badcaps Legend
                            • Feb 2010
                            • 40746
                            • USA

                            #14
                            Re: Samsung UN46d6400 Tcon/Display

                            Is the panel Samsung/Sony or other manufacturers,? ChiMei?
                            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

                            • tom thumb
                              Senior Member
                              • Jul 2013
                              • 66
                              • USA

                              #15
                              Re: Samsung UN46d6400 Tcon/Display

                              Panel # is LTJ460HW01-B Samsung
                              Under Bar code = MX09bN9106714alb06bbs1197
                              Made in Mexico (Samex)
                              BW48 Dated 2011.11.28

                              Comment

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