Sony KDL 46HX900

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  • hispeck
    Badcaps Veteran
    • Aug 2015
    • 258
    • nigeria
    #1

    Sony KDL 46HX900

    Sony KDL 46HX900 with sharp led driverwill power on and work for some seconds then shutdown and blink for 6 times. I ckecked the the back light all is working fine. Am asking if there a way one can remove protection on this kind of led driver? I attaced thepicture of tv
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    • kasfamily
      Badcaps Veteran
      • Aug 2014
      • 770
      • Russia
      #2
      Re: Sony KDL 46HX900

      Hi!
      Try to disconnect 4 the panel loop from the t-con board

        Comment

        • neilc6
          Badcaps Legend
          • Nov 2015
          • 1550
          • Canada
          #3
          Re: Sony KDL 46HX900

          Your TV is indicating it has bad backlights and they are likely failing under load. You can try turning down the backlight level and see if they stay on.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: Sony KDL 46HX900

              How did you check each LED backlights strings? There are many LED strings on that panel based on many LED connectors on the driver 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

                • hispeck
                  Badcaps Veteran
                  • Aug 2015
                  • 258
                  • nigeria
                  #5
                  Re: Sony KDL 46HX900

                  I opend the panel to the backlight , and i can see All lighting . But after some few seconds it will shutdown . If i power it again the samething. So that is why i said led.strips are good . Though some may light like this.and still fail

                    Comment

                    • hispeck
                      Badcaps Veteran
                      • Aug 2015
                      • 258
                      • nigeria
                      #6
                      Re: Sony KDL 46HX900

                      Ok i will try this and see

                        Comment

                        • ademim
                          Member
                          • Dec 2014
                          • 28
                          • Portugal
                          #7
                          Re: Sony KDL 46HX900

                          Hi I have the same exact problem did you ever fix it???? Pleased reply

                            Comment

                            • Storyteller12
                              Badcaps Veteran
                              • Jun 2020
                              • 624
                              • USA
                              #8
                              Re: Sony KDL 46HX900

                              Replace backlights.

                              4 and 6 blinks is backlight error codes

                                Comment

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