UE40D5000 red led blinking (PSU, Main board and T-con changed)

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  • wilecoyote
    New Member
    • Jan 2015
    • 6
    • FRANCE

    #1

    UE40D5000 red led blinking (PSU, Main board and T-con changed)

    Hi all,

    I have an UE40D5000 that does not start and the red light is blinking... I can also heard a sound that seem to come from T-con board or panel :s...
    I changed the PSU, the main board and the T-con board, so I'm without new ideas!
    If somebody has any idea on what I can do to solve this problem ??
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

    Does the light blink continuously?
    If you disconnect the T-con LVDS cable, does the light blink then go out?
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment

    • wilecoyote
      New Member
      • Jan 2015
      • 6
      • FRANCE

      #3
      Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

      Yes it's blinking continuously...
      Led stays on for 2 or 3 seconds then blinks several times...

      It's the same if I disconnect the TCON LVDS cable.

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

        Ok, disconnect the cable between the main board and power board. Does the backlight come on?
        Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
        For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • wilecoyote
          New Member
          • Jan 2015
          • 6
          • FRANCE

          #5
          Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

          No, the backlight stays off... Should I search for a backlight problem ??

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

            To me that indicates backlight fault (power board or LEDs inside panel)
            Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
            For service manual, schematic, boardview (board view), datasheet, cad - use our search.

            Comment

            • wilecoyote
              New Member
              • Jan 2015
              • 6
              • FRANCE

              #7
              Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

              Ok. I already changed the power board... Do you know if it's easy to test/change the LEDs inside panel ??

              Comment

              • mmartell
                Badcaps Legend
                • Oct 2013
                • 3189
                • Canada

                #8
                Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                Not easy but doable if you're careful. I have a thread here on a un55d6000 in which I did just that. Good luck.
                Last edited by mmartell; 02-03-2015, 04:20 AM.

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #9
                  Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                  Seems D-series is bad for panels and bad for LED failures, both difficult to fix (panels impossible in most cases.) Ah, Samsung...
                  Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                  For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                  Comment

                  • wilecoyote
                    New Member
                    • Jan 2015
                    • 6
                    • FRANCE

                    #10
                    Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                    Ok... Thank you guys!!! So, nothing to do anymore with that... I will try to fix the LEDs anyway... I think I have to carefully open the panel :s
                    mmartell can send me a link to the post you're talking about ??

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                      Here, I believe...
                      https://www.badcaps.net/forum/showthread.php?t=34566
                      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                      Comment

                      • labo555
                        Member
                        • May 2015
                        • 14
                        • Italia

                        #12
                        Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                        prejudice to unite myself to the problem I also have a similar problem ...not only lights the red LED flashes
                        just that to me pulling the cable the main board and power board. the backlight is on ... come on a regular basis
                        you have tips? thank you in advance
                        sorry for my bad english

                        Comment

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

                          #13
                          Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                          Images of the boards ? I had the C series blinking Led and restarting failed Bga solder on the mainboard Cpu.
                          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

                          • labo555
                            Member
                            • May 2015
                            • 14
                            • Italia

                            #14
                            Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                            thanks for your answer
                            Attached Files

                            Comment

                            • labo555
                              Member
                              • May 2015
                              • 14
                              • Italia

                              #15
                              Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                              help me...

                              Comment

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

                                #16
                                Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                                Ok firstly have you started checking the main voltages from the Psu ?
                                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

                                • labo555
                                  Member
                                  • May 2015
                                  • 14
                                  • Italia

                                  #17
                                  Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                                  ok I start to work and let you know as soon as possible
                                  thanks

                                  Comment

                                  • labo555
                                    Member
                                    • May 2015
                                    • 14
                                    • Italia

                                    #18
                                    Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                                    these are the measured values

                                    2.1.pwn_dm ------ 12.46 / 13v
                                    4.3.n.c -------------12.46 / 13v
                                    6.5.blu_on/off --------- 13v
                                    8.7.gnd -----------------
                                    10.9. gnd ----------------
                                    12.11. a5v ------------- 5.36v
                                    14.13.5. power on/off ---------------- 5.36v

                                    Comment

                                    • labo555
                                      Member
                                      • May 2015
                                      • 14
                                      • Italia

                                      #19
                                      Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                                      I have to check more

                                      Comment

                                      • labo555
                                        Member
                                        • May 2015
                                        • 14
                                        • Italia

                                        #20
                                        Re: UE40D5000 red led blinking (PSU, Main board and T-con changed)

                                        ADD THAT LED just connect the power supply flashes six times

                                        Comment

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