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Samsung UN60H6203AF LED TV Screen Won't Turn On

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    #61
    Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

    Originally posted by budm View Post
    The LED driver IC should be SMD located on the bottom side of the board.
    I thought that was on the top. When i look at the bottom the smd points to that part. I figured the driver would be attached to gate so im not sure what part is which. I took pics of the area hoping that helps.
    Attached Files

    Comment


      #62
      Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

      Originally posted by Bambam33 View Post
      I thought that was on the top. When i look at the bottom the smd points to that part. I figured the driver would be attached to gate so im not sure what part is which. I took pics of the area hoping that helps.
      Are these good enough pics budm?

      Comment


        #63
        Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

        I cannot read the P/N on top of the IC.
        Can you clean the top of the IC with Alcohol to see if you can read the prints?

        https://www.badcaps.net/forum/attach...9&d=1602949370
        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


          #64
          Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

          Originally posted by budm View Post
          I cannot read the P/N on top of the IC.
          Can you clean the top of the IC with Alcohol to see if you can read the prints?

          https://www.badcaps.net/forum/attach...9&d=1602949370
          Best i can tell it is 4077014k2620. The 0's could be 6 or 8 instead. And my eyes tell me that could be a k or a x, but i think what i have is correct. Consequently, the only magnifying glass i had fell onto the concrete right out of the lens as i was looking at the part.
          Last edited by Bambam33; 10-19-2020, 11:17 AM.

          Comment


            #65
            Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

            Originally posted by budm View Post
            I cannot read the P/N on top of the IC.
            Can you clean the top of the IC with Alcohol to see if you can read the prints?

            https://www.badcaps.net/forum/attach...9&d=1602949370
            Do those numbers seem right? I cant find anything online with that part number.

            Comment


              #66
              Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

              Originally posted by Bambam33 View Post
              Do those numbers seem right? I cant find anything online with that part number.
              I cannot find anything at all either.
              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


                #67
                Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                Originally posted by budm View Post
                I cannot find anything at all either.
                I will get one of my kids to look at it out in the daylight tomorrow to see of they can see it better. Never thought I would have to say that but here i am in life lol.

                I really appreciate your help so far. I am so ready to get this tv out of my way and on the wall.

                Comment


                  #68
                  Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                  Looks like: 407 7014X 2620

                  I've modified (contrast, exposure, shadow) the original picture to make it a little easier to see.

                  Here's a previous thread trying to identify a 7014x SOIC-8 LED driver...

                  https://www.badcaps.net/forum/showthread.php?t=82041

                  Attached Files
                  Last edited by SoftwareHack; 10-21-2020, 10:28 PM.

                  Comment


                    #69
                    Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                    Originally posted by budm View Post
                    I cannot find anything at all either.
                    Confirmed by younger eyes the number is 4077014x2620 (after i explained she was not looking at "plans for a golf course", but electrical traces instead).

                    Comment


                      #70
                      Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                      Originally posted by SoftwareHack View Post
                      Looks like: 407 7014X 2620

                      I've modified (contrast, exposure, shadow) the original picture to make it a little easier to see.

                      Here's a previous thread trying to identify a 7014x SOIC-8 LED driver...

                      https://www.badcaps.net/forum/showthread.php?t=82041

                      Perfect! Thank u. That is what i see as well but urs is much clearer. Now, i only get a mathematical equation when i plug that in to the google.

                      Comment


                        #71
                        Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                        Originally posted by budm View Post
                        I cannot find anything at all either.
                        Now that we have the part identified, do you know what voltages i should be reading there to test it?

                        Comment


                          #72
                          Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                          Originally posted by SoftwareHack View Post
                          Looks like: 407 7014X 2620

                          I've modified (contrast, exposure, shadow) the original picture to make it a little easier to see.

                          Here's a previous thread trying to identify a 7014x SOIC-8 LED driver...

                          https://www.badcaps.net/forum/showthread.php?t=82041

                          I read thru that post. At first we seemed to have a similar problem, but then his would turn on full bright after disconnecting the main. Mine will not. Any other ideas other that what bud has suggested i try?

                          Comment


                            #73
                            Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                            I did not have a chance to look at the pinout of MAP3511 compared to pinout of the IC you have on your board yet to verify if we can use the pinout of MAP3511 to troubleshoot your board or not.
                            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


                              #74
                              Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                              Originally posted by budm View Post
                              I did not have a chance to look at the pinout of MAP3511 compared to pinout of the IC you have on your board yet to verify if we can use the pinout of MAP3511 to troubleshoot your board or not.
                              No worries. Thank u for helping. I will keep looking to see what i can figure out. Im not giving up on this tv yet.

                              Comment


                                #75
                                Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                                BTW, do you have LED tester for testing the whole LED string?
                                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


                                  #76
                                  Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                                  Originally posted by budm View Post
                                  BTW, do you have LED tester for testing the whole LED string?
                                  No tester but I went led by led and tested each one with my multimeter. Also, this is a new string, albeit an ebay purchase from china. They all light up brightly when i provide that path to ground. Also, i performed a continuity test to be sure there wasnt a short to ground issue either on the harness or on the strips. Does that suffice for testing them?

                                  Comment


                                    #77
                                    Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                                    It is always to test the LED as the whole string by putting the tester at the LED connector since failure can be in the path where each LED strip is connected to each other and all the way to the LED connector, I always per form that test before putting the LCD panel back together after installing the new LED strips.
                                    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


                                      #78
                                      Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                                      Originally posted by budm View Post
                                      It is always to test the LED as the whole string by putting the tester at the LED connector since failure can be in the path where each LED strip is connected to each other and all the way to the LED connector, I always per form that test before putting the LCD panel back together after installing the new LED strips.
                                      Can i run 27vdc voltage through each string and test (9v batteries in series) or does it need to be the full vdc at the connector?

                                      Comment


                                        #79
                                        Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                                        https://www.shopjimmy.com/samsung-bn...re-led-strips/

                                        According to the LED drive Voltage chart, the Voltage is 326V.
                                        So how many pair of wires are connected to the LED connector?
                                        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


                                          #80
                                          Re: Samsung UN60H6203AF LED TV Screen Won't Turn On

                                          Originally posted by budm View Post
                                          https://www.shopjimmy.com/samsung-bn...re-led-strips/

                                          According to the LED drive Voltage chart, the Voltage is 326V.
                                          So how many pair of wires are connected to the LED connector?
                                          There are 4
                                          2 blue and 2 blk

                                          Comment

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