Samsung UN46ES7500F constant reboot

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  • tmlfan
    Senior Member
    • Jun 2011
    • 109
    #1

    Samsung UN46ES7500F constant reboot

    I bought this tv from someone that was selling it broken with 4 pairs of 3d glasses for 25$, figured it was a good deal, they said they had it for 6 months then it broke, took it to the repair shop who replaced the main/wifi/power board in June of 2013 then Samsung wouldn't honor warranty so it's basically been sitting ever since

    I took it home, plugged it in, worked perfect for about an hour then started randomly rebooting, did some reading and found it was very common for these tv's but never found a common answer for what was wrong, upon taking it apart I noticed one of the pinholes on the plug connecting main to power was brown but could have been caused before boards were replaced
    Attached Files
    Tags: None
    • tmlfan
      Senior Member
      • Jun 2011
      • 109
      #2
      Re: Samsung UN46ES7500F constant reboot

      So a little bit of an update, I had found a video on Facebook of a guy that had the same "es" style smart TV that was doing the same thing, he said he opened up back of tv and unplugged WiFi board and it fixed the problem, I did the same thing and tried using the tv and instead of randomly rebooting after tv running for about an hour perfectly it ran perfect for 5-6 days before it started shooting of again.....make sense to anyone?

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: Samsung UN46ES7500F constant reboot

          UNxxES7500-8000 SERIES May 2013 Tech Talk Newsletter.
          Attached Files
          Last edited by budm; 03-25-2018, 05:02 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

            • tmlfan
              Senior Member
              • Jun 2011
              • 109
              #4
              Re: Samsung UN46ES7500F constant reboot

              So is smps considered the whole power board, reason I ask is it was supposed to be replaced under warranty but as the pics show if the power board was replaced the ribbon cable between it and main definitely wasn't cause it is discolored, as far as I know the t-con was never touched so that might be my first thing to try

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: Samsung UN46ES7500F constant reboot

                  The connector is discolor due to heat caused by contact resistance between the female contacts and the male pins on the board. Samsung knows about the problem that is why it made the bulletin for it.
                  Last edited by budm; 03-26-2018, 09:35 AM.
                  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

                    • nomoresonys
                      Badcaps Legend
                      • Jan 2013
                      • 12274
                      • U.S.
                      #6
                      Re: Samsung UN46ES7500F constant reboot

                      Does samsung have a solution, improved cable etc?

                        Comment

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