Samsung 60" LED Issue (UN60H6400AFXZA)

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  • cheapshot
    Member
    • Jul 2012
    • 41
    • Bahamas
    #1

    Samsung 60" LED Issue (UN60H6400AFXZA)

    Hello everyone. I have a Samsung 60" LED TV Model #-UN60H6400AFXZA. Here is the issue: TV will cut on fine, standby led is fine. No image at all though and no backlights seen at all when TV is cut on. Sound works as well, I can hear when I toggle the menu options it is responding. I have attached some images so hope this helps as I have done no troubleshooting yet. I will test the main filter cap and get back as I need help testing the led output. Thanks for you help here!
    Attached Files
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    • cheapshot
      Member
      • Jul 2012
      • 41
      • Bahamas
      #2
      Re: Samsung 60" LED Issue (UN60H6400AFXZA)

      I see www.shopjimmy.com sells the complete board kit for this here: http://www.shopjimmy.com/samsung-un6...-version-1.htm

      You think its worth getting or we should rule out the LED strips first?

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: Samsung 60" LED Issue (UN60H6400AFXZA)

          Do you get the baklights when you power up the power supply/LED driver board without the cable connected to the main 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

            • cheapshot
              Member
              • Jul 2012
              • 41
              • Bahamas
              #4
              Re: Samsung 60" LED Issue (UN60H6400AFXZA)

              Budm, let me check that sorry. Sorry for the long delay!

                Comment

                • cheapshot
                  Member
                  • Jul 2012
                  • 41
                  • Bahamas
                  #5
                  Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                  Yes sir. Backlights work once main board is disconnected. Main board issue?

                    Comment

                    • TechGeek
                      Computer Geek
                      • Jan 2015
                      • 2254
                      • USA
                      #6
                      Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                      Sounds like something is loading down the PSU enough to knock out the backlights. Try reconnecting the mainboard and retesting.
                      Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

                      My computer doubles as a space heater.

                      Permanently Retired Systems:
                      RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
                      Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


                      Kooky and Kool Systems
                      - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
                      - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
                      - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
                      - Main Workstation - Fully operational!

                      sigpic

                        Comment

                        • cheapshot
                          Member
                          • Jul 2012
                          • 41
                          • Bahamas
                          #7
                          Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                          Reconnected mainboard same issue as before. No backlights.

                            Comment

                            • TechGeek
                              Computer Geek
                              • Jan 2015
                              • 2254
                              • USA
                              #8
                              Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                              Ok
                              Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

                              My computer doubles as a space heater.

                              Permanently Retired Systems:
                              RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
                              Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


                              Kooky and Kool Systems
                              - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
                              - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
                              - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
                              - Main Workstation - Fully operational!

                              sigpic

                                Comment

                                • cheapshot
                                  Member
                                  • Jul 2012
                                  • 41
                                  • Bahamas
                                  #9
                                  Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                                  So seems like a main board is in order or is more testing needed with this?

                                    Comment

                                    • TechGeek
                                      Computer Geek
                                      • Jan 2015
                                      • 2254
                                      • USA
                                      #10
                                      Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                                      Let me obtain some schematics for this TV...
                                      Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

                                      My computer doubles as a space heater.

                                      Permanently Retired Systems:
                                      RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
                                      Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


                                      Kooky and Kool Systems
                                      - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
                                      - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
                                      - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
                                      - Main Workstation - Fully operational!

                                      sigpic

                                        Comment

                                        • budm
                                          Badcaps Legend
                                          • Feb 2010
                                          • 40746
                                          • USA
                                          #11
                                          Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                                          That means the main board is not sending the BL-ON (BLU-ON) to turn on the backlights circuit.
                                          Try disconnecting the T-CON board, heat and cool the main board to see if it has any affect.
                                          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

                                            • cheapshot
                                              Member
                                              • Jul 2012
                                              • 41
                                              • Bahamas
                                              #12
                                              Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                                              No effect Budm.

                                                Comment

                                                • ReeceyBurger123
                                                  Never Give Up !
                                                  • May 2014
                                                  • 7325
                                                  • Britain
                                                  #13
                                                  Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                                                  Common issue is the Spi Flash Ic which contains the firmware corrupting and not turning the set on. If you can source a chip with the firmware on replace it if not replace the motherboard
                                                  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

                                                    • cheapshot
                                                      Member
                                                      • Jul 2012
                                                      • 41
                                                      • Bahamas
                                                      #14
                                                      Re: Samsung 60" LED Issue (UN60H6400AFXZA)

                                                      Thanks guys for all your help. I will source the MB with kit mentioned earlier. I will get back with results thanks!

                                                        Comment

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