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    Samsung UE65F9000SLXXH

    Hello, I have this TV for repair and the symptom is that every black background has a red colour like noise. It is not visible in the menu though. I have removed and cleaned all the flex / cable connected on the boards, nothing changed. Is that main board issue?
    Attached Files

    #2
    Re: Samsung UE65F9000SLXXH

    log in service menu from STB state and from there do initial (hard reset ). after you check the white balance all channel value.. write it down over here or upload screen shoot.

    Comment


      #3
      Re: Samsung UE65F9000SLXXH

      Originally posted by diah View Post
      log in service menu from stb state and from there do initial (hard reset ). After you check the white balance all channel value.. Write it down over here or upload screen shoot.
      Attached Files

      Comment


        #4
        Re: Samsung UE65F9000SLXXH

        if you did hard reset from service menu and there no change.... for me its One connect problem
        Last edited by Diah; 02-27-2021, 04:45 AM.

        Comment


          #5
          Re: Samsung UE65F9000SLXXH

          Originally posted by Diah View Post
          if you did hard reset from service menu and there no change.... for me its One connect problem
          I did factory reset the TV and took a photo.
          How can this be a One Connect problem though? The red background is pressent even with One Connect disconnected.

          Comment


            #6
            Re: Samsung UE65F9000SLXXH

            Originally posted by WhiteWolfHellas View Post
            I did factory reset the TV and took a photo.
            How can this be a One Connect problem though? The red background is pressent even with One Connect disconnected.
            where are the photo its show this back ground with warning screen about connect the one connect ??????

            Comment


              #7
              Re: Samsung UE65F9000SLXXH

              Originally posted by diah View Post
              where are the photo its show this back ground with warning screen about connect the one connect ??????
              You mean this?

              Attached Files

              Comment


                #8
                Re: Samsung UE65F9000SLXXH

                now its clear..yours mainboards integrated with T-CON ..?!!?

                Comment


                  #9
                  Re: Samsung UE65F9000SLXXH

                  Originally posted by Diah View Post
                  now its clear..yours mainboards integrated with T-CON ..?!!?
                  No, the T-Con is separate from the main board.

                  Attached Files
                  Last edited by WhiteWolfHellas; 03-02-2021, 04:03 AM.

                  Comment


                    #10
                    Re: Samsung UE65F9000SLXXH

                    Originally posted by WhiteWolfHellas View Post
                    No, the T-Con is separate from the main board.
                    in this case you need first to test panel reaction after you connect the one connect and feed video or other ports signal then disconnect one ribbon at time between T-CON and panel. to check if there are any different with it.

                    Comment


                      #11
                      Re: Samsung UE65F9000SLXXH

                      Originally posted by Diah View Post
                      in this case you need first to test panel reaction after you connect the one connect and feed video or other ports signal then disconnect one ribbon at time between T-CON and panel. to check if there are any different with it.
                      Using the antenna signal (aerial) the screen turns black when I disconnect either of the T-Con flexes to panel.

                      Comment


                        #12
                        Re: Samsung UE65F9000SLXXH

                        remove the metal shield of the 2 boards the back one and the one at the middle. upload focused high resolution photos on both. we need to track the video signal R/G/B-Offset

                        Comment


                          #13
                          Re: Samsung UE65F9000SLXXH

                          Originally posted by diah View Post
                          remove the metal shield of the 2 boards the back one and the one at the middle. Upload focused high resolution photos on both. We need to track the video signal r/g/b-offset
                          T-Con board

                          3-D board(?)
                          Attached Files

                          Comment


                            #14
                            Re: Samsung UE65F9000SLXXH

                            its difficult to trace the signal walking thru. need to take a look on the other boards with black cover.

                            BTW: did the "one connect" socket connected to video processing boards ( the middle one ) via the Yellow socket clip?

                            Comment


                              #15
                              Re: Samsung UE65F9000SLXXH

                              Originally posted by Diah View Post
                              its difficult to trace the signal walking thru. need to take a look on the other boards with black cover.

                              BTW: did the "one connect" socket connected to video processing boards ( the middle one ) via the Yellow socket clip?


                              The One Connect socket is connected in the main board. The yellow socket connects the main board with the 3-D board if that's what you are asking.
                              Attached Files

                              Comment


                                #16
                                Re: Samsung UE65F9000SLXXH

                                try first to clean and reseat the black LVDS cable from both sides.. then you have 3 gate IC on the manibiards close to this black LVDS. IC110-111-112 try to freeze or to heat to check any different at screen

                                Comment


                                  #17
                                  Re: Samsung UE65F9000SLXXH

                                  Originally posted by Diah View Post
                                  try first to clean and reseat the black LVDS cable from both sides.. then you have 3 gate IC on the manibiards close to this black LVDS. IC110-111-112 try to freeze or to heat to check any different at screen
                                  Did everything you said, nothing changed. Could it be a defective panel?

                                  Comment


                                    #18
                                    Re: Samsung UE65F9000SLXXH

                                    Originally posted by WhiteWolfHellas View Post
                                    Did everything you said, nothing changed. Could it be a defective panel?
                                    No,
                                    if you did freeze or heating ICs 110-111-112 with no change.. then you have 90% BGA at the big chip.. look on the left side of the Ics where the print line goes.. at this side of the chip need flux and refellow
                                    Last edited by Diah; 03-05-2021, 06:13 AM.

                                    Comment


                                      #19
                                      Re: Samsung UE65F9000SLXXH

                                      Originally posted by Diah View Post
                                      No,
                                      if you did freeze or heating ICs 110-111-112 with no change.. then you have 90% BGA at the big chip.. look on the left side of the Ics where the print line goes.. at this side of the chip need flux and refellow
                                      OK, I will do a reflow and report back, thank you for the info brother.

                                      Comment

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