Samsung UE46C6005 only clicking

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  • Stanem
    Member
    • Sep 2016
    • 22
    • sweden

    #1

    Samsung UE46C6005 only clicking

    Hi all!
    Having problem with my Samsung, model code UE46C6005RWXXE.
    As soon as I apply main power it starts clicking and red led in front flashing. I have opened up the backside and measured between t-con and main board, all voltage readings seem correct (I guess PS & BS should be 16.9v). When clicking the voltages disapperes and comes back at next click.
    ThatΒ΄s about as far I know what to check - IΒ΄m quite handy with soldering iron, computers & electronics but when coming to modern TVs my knowledge is quite basic... so any help what it could be/what to do would be much appreciated
  • Moreno83
    Badcaps Legend
    • Jun 2014
    • 2008
    • The Netherlands

    #2
    Re: Samsung UE46C6005 only clicking

    What happens when you remove the cable between mainboard and powersupply? Remove that cable and turn on the tv , does the backlight come on?
    I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

    Comment

    • Stanem
      Member
      • Sep 2016
      • 22
      • sweden

      #3
      Re: Samsung UE46C6005 only clicking

      If I remove the cable nothing happens when I apply main power and the connector to mainboard is powerless.

      Comment

      • Moreno83
        Badcaps Legend
        • Jun 2014
        • 2008
        • The Netherlands

        #4
        Re: Samsung UE46C6005 only clicking

        Ok , that looks like you have a backlight issue. Im not really familiar with these led tv's. Im more into plasma tv's.

        Need to wait for Budm/Reecey etc to join. Can you provide some clear pictures of the back of the tv? This well help for quicker repair.
        I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

        Comment

        • Stanem
          Member
          • Sep 2016
          • 22
          • sweden

          #5
          Re: Samsung UE46C6005 only clicking

          OK, thank you very much anyway - I will try to get some pictures and post them.

          Comment

          • ReeceyBurger123
            Never Give Up !
            • May 2014
            • 7325
            • Britain

            #6
            Re: Samsung UE46C6005 only clicking

            Have you an image of the boards please ? Also if its clicking with the MB out sounds like a psu issue to me.
            Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

            https://www.facebook.com/Telford-Tel...7894576335359/

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA

              #7
              Re: Samsung UE46C6005 only clicking

              Originally posted by Stanem
              If I remove the cable nothing happens when I apply main power and the connector to main board is powerless.
              So if you do not see the backlights come on and stay on when the cable between the power supply and the main board is removed, then we need to good clear pictures of the whole backside of the TV showing all the boards and then good clear pictures of the power supply board so we see good clear labels and traces on the board.
              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

              • Stanem
                Member
                • Sep 2016
                • 22
                • sweden

                #8
                Re: Samsung UE46C6005 only clicking

                I put the pictures as attachment - donΒ΄t know how to do else... not my best pictures but in evening itΒ΄s problematic with the light but I hope you can see.
                Obviously I wasnΒ΄t clear with my decription - if I remove the cable between MB and T-board (PSU) it happens nothing when applying main power, no clicking, no power (on connector to MB),no backlight, no nothing at all...
                Attached Files

                Comment

                • Moreno83
                  Badcaps Legend
                  • Jun 2014
                  • 2008
                  • The Netherlands

                  #9
                  Re: Samsung UE46C6005 only clicking

                  I saw your mainboard and i ran upstairs to my scab boards. I got 4 of them , all DEAD.

                  Looks like a common issue with these boards. Going to keep an eye on this thread and see if i can fix the boards.
                  I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                  Comment

                  • ReeceyBurger123
                    Never Give Up !
                    • May 2014
                    • 7325
                    • Britain

                    #10
                    Re: Samsung UE46C6005 only clicking

                    It will probably be the Bga soldering on the main cpu thats failed. My advise reflow the mainboard see if helps. Samsung were able to make a nice flat Tv but they failed at properly cooling the hot running parts which leads to failure.
                    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                    https://www.facebook.com/Telford-Tel...7894576335359/

                    Comment

                    • Stanem
                      Member
                      • Sep 2016
                      • 22
                      • sweden

                      #11
                      Re: Samsung UE46C6005 only clicking

                      Originally posted by ReeceyBurger123
                      It will probably be the Bga soldering on the main cpu thats failed. My advise reflow the mainboard see if helps. Samsung were able to make a nice flat Tv but they failed at properly cooling the hot running parts which leads to failure.
                      Thanks for the advice but that kind of equipment I havenΒ΄t... or is there a way to do it at home?

                      Comment

                      • budm
                        Badcaps Legend
                        • Feb 2010
                        • 40746
                        • USA

                        #12
                        Re: Samsung UE46C6005 only clicking

                        BN44-00357B POWER SUPPLY/LED driver board.
                        These boards are known for bad solder joints on the rivet through hole solder joints, you can them on TM801S transformer. I would resolder all those transformer legs and any devices mounted on the heatsink.
                        Run the power supply board by itself and then check the DCV on the LED connector CNL801 Pin 1~8 to see what kind of DCV you have to the LEDs.
                        Attached Files
                        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

                        • Stanem
                          Member
                          • Sep 2016
                          • 22
                          • sweden

                          #13
                          Re: Samsung UE46C6005 only clicking

                          Originally posted by budm
                          BN44-00357B POWER SUPPLY/LED driver board.
                          These boards are known for bad solder joints on the rivet through hole solder joints, you can them on TM801S transformer. I would resolder all those transformer legs and any devices mounted on the heatsink.
                          Run the power supply board by itself and then check the DCV on the LED connector CNL801 Pin 1~8 to see what kind of DCV you have to the LEDs.
                          That I will check at once! Tnx for the tip, will resolder and see what happens

                          Comment

                          • Moreno83
                            Badcaps Legend
                            • Jun 2014
                            • 2008
                            • The Netherlands

                            #14
                            Re: Samsung UE46C6005 only clicking

                            First test what Budm says. I think normally the backlight should come on with mainboard removed.
                            I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                            Comment

                            • Stanem
                              Member
                              • Sep 2016
                              • 22
                              • sweden

                              #15
                              Re: Samsung UE46C6005 only clicking

                              Tried to resolder, no change - still clicking.
                              The part I donΒ΄t really get is how to measure CN801 when PSU is by it self - is backlight on as soon as there is main power present? DonΒ΄t I have to activate in some way, I mean is the backlight always on even if the TV is in standby? Anyway, I did measure CN801 with only main power cord connected and there is no DVC present.

                              Comment

                              • budm
                                Badcaps Legend
                                • Feb 2010
                                • 40746
                                • USA

                                #16
                                Re: Samsung UE46C6005 only clicking

                                OK, I just look at the schematic in details, the BN44-00357A or B DOES NOT have pull up resistor for testing the power supply board by itself.
                                So removing the cable between the main board and the power supply board will not do anything, you have to use force on resistors to test the power supply board.
                                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

                                • Stanem
                                  Member
                                  • Sep 2016
                                  • 22
                                  • sweden

                                  #17
                                  Re: Samsung UE46C6005 only clicking

                                  Originally posted by budm
                                  OK, I just look at the schematic in details, the BN44-00357A or B DOES NOT have pull up resistor for testing the power supply board by itself.
                                  So removing the cable between the main board and the power supply board will not do anything, you have to use force on resistors to test the power supply board.
                                  Where and what resistance should I use?
                                  By the way, do you know what SW4110 on MB is for? Just out of curiosity...

                                  Comment

                                  • Stanem
                                    Member
                                    • Sep 2016
                                    • 22
                                    • sweden

                                    #18
                                    Re: Samsung UE46C6005 only clicking

                                    Sorry, it should be SW4001 - starting to get tired...

                                    Comment

                                    • budm
                                      Badcaps Legend
                                      • Feb 2010
                                      • 40746
                                      • USA

                                      #19
                                      Re: Samsung UE46C6005 only clicking

                                      There are charts next to the transformer TB801S for the connector CNM801 (18 pins)
                                      You will connect 1K resistor between Pin 16 SB (STANDBY 5.2VDC) and pin 18 PS (PS-ON/POWER-ON), then another 1K resistor between SB pin and pin 4 BL (BL-ON). You will run the test without the main board connected.
                                      Last edited by budm; 09-17-2016, 02:54 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

                                      • Stanem
                                        Member
                                        • Sep 2016
                                        • 22
                                        • sweden

                                        #20
                                        Re: Samsung UE46C6005 only clicking

                                        Thank you! I will try it and post the result tomorrow - too tired now...

                                        Comment

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