Samsung LN32D403E4D - Jumpy/Double Image

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  • ohmmy
    Senior Member
    • Jan 2013
    • 182
    • USA

    #1

    Samsung LN32D403E4D - Jumpy/Double Image

    Haven't taken it apart yet, just wondering if it could be a panel problem just from the symptom.
    Attached Files
    Last edited by ohmmy; 11-20-2013, 08:12 PM.
  • ohmmy
    Senior Member
    • Jan 2013
    • 182
    • USA

    #2
    Re: Samsung LN32D403E4D - Jumpy/Double Image

    Anyone? Tv is only a year old

    Comment

    • Glitcher
      Badcaps Veteran
      • Mar 2013
      • 673
      • USa

      #3
      Re: Samsung LN32D403E4D - Jumpy/Double Image

      would suspect a bad panel maybe tab bonds, but then its weird how there are little white sparkles

      Comment

      • ohmmy
        Senior Member
        • Jan 2013
        • 182
        • USA

        #4
        Re: Samsung LN32D403E4D - Jumpy/Double Image

        Are either fixable?

        Comment

        • freakaftr8
          Badcaps Legend
          • Oct 2012
          • 3743
          • USA

          #5
          Re: Samsung LN32D403E4D - Jumpy/Double Image

          Is there a horizontal line in the picture and everything under that line is normal?
          Did I leave the soldering iron on?

          Comment

          • ohmmy
            Senior Member
            • Jan 2013
            • 182
            • USA

            #6
            Re: Samsung LN32D403E4D - Jumpy/Double Image

            Originally posted by freakaftr8
            Is there a horizontal line in the picture and everything under that line is normal?
            No, any display is doubled. I just used the no signal picture to show the effect more clearly

            Comment

            • freakaftr8
              Badcaps Legend
              • Oct 2012
              • 3743
              • USA

              #7
              Re: Samsung LN32D403E4D - Jumpy/Double Image

              The white static on the black is interesting. That seems like a main board fault.
              Did I leave the soldering iron on?

              Comment

              • ohmmy
                Senior Member
                • Jan 2013
                • 182
                • USA

                #8
                Re: Samsung LN32D403E4D - Jumpy/Double Image

                Originally posted by freakaftr8
                The white static on the black is interesting. That seems like a main board fault.
                Its just a snowy background because the input was set to TV

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: Samsung LN32D403E4D - Jumpy/Double Image

                  Bad tab bonding?
                  Attached Files
                  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

                  • ohmmy
                    Senior Member
                    • Jan 2013
                    • 182
                    • USA

                    #10
                    Re: Samsung LN32D403E4D - Jumpy/Double Image

                    The gate tab bond failure looks like my problem. Is that fixable?
                    Last edited by ohmmy; 11-21-2013, 01:19 PM.

                    Comment

                    • ohmmy
                      Senior Member
                      • Jan 2013
                      • 182
                      • USA

                      #11
                      Re: Samsung LN32D403E4D - Jumpy/Double Image

                      What are the differences in tab bonds?

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: Samsung LN32D403E4D - Jumpy/Double Image

                        Which document is that image from Budm?
                        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

                        • budm
                          Badcaps Legend
                          • Feb 2010
                          • 40746
                          • USA

                          #13
                          Re: Samsung LN32D403E4D - Jumpy/Double Image

                          From Sony T-CON training manual.
                          Attached Files
                          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

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #14
                            Re: Samsung LN32D403E4D - Jumpy/Double Image

                            Useful, will keep that for future reference. Thanks.
                            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

                            • ohmmy
                              Senior Member
                              • Jan 2013
                              • 182
                              • USA

                              #15
                              Re: Samsung LN32D403E4D - Jumpy/Double Image

                              Took panel apart, and this one is unusual. Tcon is on bottom of the screen and there's only one tab bond going to the panel. Did not see any others along the edges or top of display

                              Comment

                              • ohmmy
                                Senior Member
                                • Jan 2013
                                • 182
                                • USA

                                #16
                                Re: Samsung LN32D403E4D - Jumpy/Double Image

                                So I sprayed some freeze on the t-con and noticed when I hit a small ic that looks like a regulator labeled 03 in the picture I provided, the split/double image attempted to re-join but quickly spread back out as freeze dissipated.

                                I measured the voltage on the far right pin and it was a steady 7.43v even when the ic was sprayed.

                                The pin in the middle and back tab were 0v (guessing ground) and the tab on the left measured 8v but after being sprayed dropped to around 6.68v and slowly climbed back up which is when the image was completely doubled.

                                The only marking on the ic itself is "N2"

                                Could it be bad?
                                Attached Files

                                Comment

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK

                                  #17
                                  Re: Samsung LN32D403E4D - Jumpy/Double Image

                                  Is the VSS test point what you are measuring? SAMSUNG panel?
                                  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

                                  • ohmmy
                                    Senior Member
                                    • Jan 2013
                                    • 182
                                    • USA

                                    #18
                                    Re: Samsung LN32D403E4D - Jumpy/Double Image

                                    Originally posted by tom66
                                    Is the VSS test point what you are measuring? SAMSUNG panel?
                                    Yes its a Samsung panel and the VSS point is the 7.43v reading

                                    Comment

                                    • ohmmy
                                      Senior Member
                                      • Jan 2013
                                      • 182
                                      • USA

                                      #19
                                      Re: Samsung LN32D403E4D - Jumpy/Double Image

                                      I went ahead and replaced that ic with an adjustable 1117 regulator out of curiousity as the original one seemed to be a smaller regulator.

                                      Same result with double image and voltage outputs as well as same thing happens when I spray it, picture tries to rejoin

                                      Comment

                                      • tom66
                                        EVs Rule
                                        • Apr 2011
                                        • 32560
                                        • UK

                                        #20
                                        Re: Samsung LN32D403E4D - Jumpy/Double Image

                                        Think this is the device


                                        If it's working, and conducting, voltage between B-E (outer two pins) should be approx 0.7V.

                                        ...and it's not a 1117; replacing it with one may cause damage...

                                        Is VSS definitely positive? I suppose it could be what SAMSUNG call VCOM. It would not cause jumpy image.

                                        Jumpy image could perhaps be caused by VGH/VON or VGL/VOFF going bad.
                                        Last edited by tom66; 11-21-2013, 04:39 PM.
                                        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

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