Samsung LED starts up black screen then reboots itself veritical blue lines

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  • BrentH561
    Member
    • Jul 2011
    • 16
    #1

    Samsung LED starts up black screen then reboots itself veritical blue lines

    Samsung UN46C6300

    Picked this up from a friend that said while watching it the screen would flicker and go to a green or black screen .To correct this issue temporarily he would give it a knock on the back panel in the area of the board where the hdmi ports plug. I will test the fuse on the T-Con board as I have ready that this may be the cause. I have made sure all of the ribbon connections were properly secured. Any help greatly appreciated!


    Screen that appears after continuous restarting itself is shown below. The screen will take around 10 seconds to appear from the time I hear the click of it powering on. The screen will be black before it appears.



    Mainboard



    TCon





    HDMI board
    Last edited by BrentH561; 11-24-2013, 06:52 PM.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Samsung LED starts up black screen then reboots itself veritical blue lines

      That looks a lot like a main board fault (the one with the HDMIs)
      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

        • tibimakai
          Badcaps Legend
          • Jan 2012
          • 3680
          • USA
          #3
          Re: Samsung LED starts up black screen then reboots itself veritical blue lines

          The one that I have repaired, it was just rebooting in a loop and a "new" mainboard fixed it.
          It has a screeching sound also?

            Comment

            • BrentH561
              Member
              • Jul 2011
              • 16
              #4
              Re: Samsung LED starts up black screen then reboots itself veritical blue lines

              Thanks for all the help. I plan to replace the main board. Will post back with results.

                Comment

                • BrentH561
                  Member
                  • Jul 2011
                  • 16
                  #5
                  Re: Samsung LED starts up black screen then reboots itself veritical blue lines

                  Installed a main board i picked up off ebay and the unit starts up and seems to run my xbox and satellite perfect on hdmi 1. However when running my pc to hdmi2 i see a slight green flicker across the screen on the bottom. I am fairly certain this problem only happens when using hdmi port #2. Is this indication of a faulty main board?

                    Comment

                    • newtothis
                      Badcaps Legend
                      • Mar 2013
                      • 1556
                      • england
                      #6
                      Re: Samsung LED starts up black screen then reboots itself veritical blue lines

                      test your xbox on HDMI 2, also switch cables to rule them out

                        Comment

                        • freakaftr8
                          Badcaps Legend
                          • Oct 2012
                          • 3743
                          • USA
                          #7
                          Re: Samsung LED starts up black screen then reboots itself veritical blue lines

                          Also wiggle the hdmi cord in the hdmi 2 socket and see if it plays up. If so either bad cable, bad hdmi socket or bad solder connections on hdmi 2 input.
                          Did I leave the soldering iron on?

                            Comment

                            • tibimakai
                              Badcaps Legend
                              • Jan 2012
                              • 3680
                              • USA
                              #8
                              Re: Samsung LED starts up black screen then reboots itself veritical blue lines

                              I always install the latest firmwares.

                                Comment

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