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Samsung UE58TU7100K Wont Turn On

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    Samsung UE58TU7100K Wont Turn On

    Samsung UE58TU7100K

    When trying to turn on, red light flashes twice, then pause, then flashes twice, then pause, then comes on solid, and screen lights up for a second (no image), then goes off and starts the cycle again.

    Is there any known faults that I should be aware of before opening it up?

    #2
    Re: Samsung UE58TU7100K Wont Turn On

    Pics with back removed
    Attached Files

    Comment


      #3
      Re: Samsung UE58TU7100K Wont Turn On

      If I unplug the main board, and plug the TV in, the screen illuminates and stays on, so would seem the backlights are ok.

      If I leave the mainboard plugged in, but inplug Tcon ribbon, the screen illuminates and stays on also
      Last edited by Bloopeta; 09-15-2022, 11:11 AM.

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        #4
        Re: Samsung UE58TU7100K Wont Turn On

        unplug the U ribbon on the screen buffer boards from one side and turn on... it should u have half picture

        Comment


          #5
          Re: Samsung UE58TU7100K Wont Turn On

          Originally posted by Diah View Post
          unplug the U ribbon on the screen buffer boards from one side and turn on... it should u have half picture
          Unfortunately not, if I unplug either side one at a time, I get illumination from backlights, but nothing else

          Comment


            #6
            Re: Samsung UE58TU7100K Wont Turn On

            This was already discussed in other threads. In US the model number starts with UN instead.
            With scotch tape you can get the image back, but there will be color tint on the lelt side.

            Comment


              #7
              Re: Samsung UE58TU7100K Wont Turn On

              Originally posted by alfatv View Post
              This was already discussed in other threads. In US the model number starts with UN instead.
              With scotch tape you can get the image back, but there will be color tint on the lelt side.

              Ffs 🙄
              The TV is only 18 months old too

              Comment


                #8
                Re: Samsung UE58TU7100K Wont Turn On

                Originally posted by Bloopeta View Post
                Ffs 🙄
                The TV is only 18 months old too
                It's still under warranty, why not take it back?

                Comment


                  #9
                  Re: Samsung UE58TU7100K Wont Turn On

                  Originally posted by diif View Post
                  It's still under warranty, why not take it back?
                  Its not, we only get 12 months warranty

                  Comment


                    #10
                    Re: Samsung UE58TU7100K Wont Turn On

                    Hi, if i'm right 2 blinks is Power supply, try to test psb 13v output with board alone and dummy load like resistors or lamp, it could be a tension that seats under load..
                    Last edited by Davi.p; 09-16-2022, 12:19 AM.

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                      #11
                      Re: Samsung UE58TU7100K Wont Turn On

                      That might be the Samsung warranty but it doesn't align with UK consumer law and doesn't apply.

                      Comment


                        #12
                        Re: Samsung UE58TU7100K Wont Turn On

                        Originally posted by alfatv View Post
                        This was already discussed in other threads. In US the model number starts with UN instead.
                        With scotch tape you can get the image back, but there will be color tint on the lelt side.
                        Im not getting able to find anything on search, do you have a link to the thread please?

                        Comment


                          #13
                          Re: Samsung UE58TU7100K Wont Turn On

                          test also the tension in standby, m.b. attached..

                          Comment


                            #14
                            Re: Samsung UE58TU7100K Wont Turn On

                            Originally posted by Davi.p View Post
                            Hi, if i'm right 2 blinks is Power supply, try to test psb 13v output with board alone and dummy load like resistors or lamp, it could be a tension that seats under load..
                            Hi, tested the 13v outputs with board alone and all are reading ok. Not sure how to dummy load?

                            Comment


                              #15
                              Re: Samsung UE58TU7100K Wont Turn On

                              Put a car lamp on 13v or another house lamp like halogen, about 30-50w

                              Comment


                                #16
                                Re: Samsung UE58TU7100K Wont Turn On

                                Originally posted by Davi.p View Post
                                test also the tension in standby, m.b. attached..
                                Still all test 13.4 with MB attached

                                Comment


                                  #17
                                  Re: Samsung UE58TU7100K Wont Turn On

                                  but is it in standby? because in standby must be 7,5v
                                  do the lamp test

                                  Comment


                                    #18
                                    Re: Samsung UE58TU7100K Wont Turn On

                                    Originally posted by Davi.p View Post
                                    but is it in standby? because in standby must be 7,5v
                                    do the lamp test
                                    It wont go into standby. As soon as it is plugged in, it goes into the cycle of turning on and off. Pressing power button both on set, and remote control does nothing.

                                    How do I wire in a lamp and do test please?

                                    Comment


                                      #19
                                      Re: Samsung UE58TU7100K Wont Turn On

                                      Originally posted by diif View Post
                                      That might be the Samsung warranty but it doesn't align with UK consumer law and doesn't apply.
                                      Unfortunately I didnt buy the set new myself, so unable to return it. But thats interesting to know for future reference, I always thought electrical goods were 12 month warranty, unless took out extended from Currys etc

                                      Comment


                                        #20
                                        Re: Samsung UE58TU7100K Wont Turn On

                                        Originally posted by Bloopeta View Post
                                        Its not, we only get 12 months warranty
                                        Please research out excellent consumer laws. An 18 month old TV is covered. There really is no need to fix, unless it's for learning.

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