Samsung QN75QN800AF doing constant reboots, and click sound from Connect One device.

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  • Alper99
    New Member
    • Oct 2024
    • 9
    • United States

    #1

    Samsung QN75QN800AF doing constant reboots, and click sound from Connect One device.

    So here is the thing. Someone from a rich neighborhood posted a sale on a broken Samsung. It was doing re-boot all the time.
    A web search revealed a very quick fix, so I bought it TV for $100.

    First move was to get a new used Samsung Connect Box​ but there was no change on error.
    I opened up the device, and what I saw was way different on what was on YouTube videos, in terms of complexity.

    Now, I can replace all 3 board onboard, and give it a go, but that may also be a waste of money. I can get all components for $150

    Below is the video of what is going on when It is powered.

    https://www.icloud.com/photos/#0bfUy...OYO5RnMMgmZWrg

    What should be my next step on fixing this.
    I plan on using it since this is a fancy one.


    Thanks in advance for your time and thoughts!
  • EazyBone
    Badcaps Legend
    • Jun 2023
    • 1303
    • United states

    #2
    Rebooting generally means a panel fault. Which isnt fixable. But sometimes we can get lucky on these tvs. As a note, don't ever buy a rebooting Samsung again for $$ unless you need something on them specifically.

    On these qleds we can sometimes get lucky

    Take a picture of the buffer boards at the bottom of the TV with clear pictures. It's the long strips at the very bottom, post a picture of all of it which will be a few pictures.

    This will be a start.

    Comment

    • Alper99
      New Member
      • Oct 2024
      • 9
      • United States

      #3
      Thanks a lot!, here they are;

      https://www.icloud.com/photos/#067F2...5R3tBEZ8p8ih5Q


      Originally posted by EazyBone
      Rebooting generally means a panel fault. Which isnt fixable. But sometimes we can get lucky on these tvs. As a note, don't ever buy a rebooting Samsung again for $$ unless you need something on them specifically.

      On these qleds we can sometimes get lucky

      Take a picture of the buffer boards at the bottom of the TV with clear pictures. It's the long strips at the very bottom, post a picture of all of it which will be a few pictures.

      This will be a start.

      Comment

      • EazyBone
        Badcaps Legend
        • Jun 2023
        • 1303
        • United states

        #4
        Now there is a yellowish ribbon that connects those buffer boards one on the left side and one on the right side. Undo the far left side ribbon and take it off Don't leave any bits hanging and then plug the TV in and turn it on and see if you get 3/4 of a picture. If it's still rebooting unplug the TV plug that ribbon back in and then try the right side and unplug that ribbon and see if you get 3/4 of a picture when you plug it in then. Make sure you're not unplugging those ribbons while the TV is plugged in. It's the yellowish ribbons not the ones coming from the main board in the middle. Let us know if anything happens, sometimes this test doesn't work but let's see

        Comment

        • Alper99
          New Member
          • Oct 2024
          • 9
          • United States

          #5
          Yes, removing far left got a 3/4 of a picture and stopped the reboot process.

          Comment

          • Alper99
            New Member
            • Oct 2024
            • 9
            • United States

            #6
            ok tried to tape the ribbons to block the short,and must have done something wrong since screen is all colored lines at the moment. I am guessing I will be heading to recycling tomorrow.

            Comment

            • EazyBone
              Badcaps Legend
              • Jun 2023
              • 1303
              • United states

              #7
              Sorry for late response.. yes if you got 3/4 then yes panel short. I would take the boards out and the one connect boxes and resell them on eBay. They fetch a pretty penny. Also that cable for ocb also.

              Try the 3/4 picture again see if lines are gone. Sorry to hear 🥺

              Comment

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