sony bravia kdl-46nx723 (APS-295) Red light blinks twice

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  • mobileunlockers
    Member
    • Jul 2016
    • 12
    • uk
    #1

    sony bravia kdl-46nx723 (APS-295) Red light blinks twice

    Hi
    I need some help with a sony bravia kdl-46nx723, I have bought this tv from a customer. He given to someone for repairing and they messed it up more. They have broken the parts from the T-con board and PSU. I have replaced both boards and now standby light blinks twice. I have checked on the schematic and it says there is an issue with the psu but I tried with another psu and still same issue.
    I have checked the voltages on the psu and I have only Standby 3.3 voltages but REG 12v are missing. Can anyone please confirm if these voltages need to be present all the time or just after tv come on. Thanks
    Attached Files
    Last edited by mobileunlockers; 09-04-2016, 03:24 PM.
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: sony bravia kdl-46nx723 (APS-295) Red light blinks twice

      The one picture is blurred and cannot read the legend.
      Willing to help but I'm no expert.

        Comment

        • mobileunlockers
          Member
          • Jul 2016
          • 12
          • uk
          #3
          Re: sony bravia kdl-46nx723 (APS-295) Red light blinks twice

          Hi thanks for the reply. please check the pictures now.

            Comment

            • dick_barton
              Badcaps Legend
              • Aug 2015
              • 6642
              • Wales
              #4
              Re: sony bravia kdl-46nx723 (APS-295) Red light blinks twice

              If you jumper Power On to 3.3Vstby using 1K resistor and with the main board disconnected, do the other supplies come up?
              Willing to help but I'm no expert.

                Comment

                • mobileunlockers
                  Member
                  • Jul 2016
                  • 12
                  • uk
                  #5
                  Re: sony bravia kdl-46nx723 (APS-295) Red light blinks twice

                  yes i do get all the 12v after jumpering between standby and pwr.
                  Last edited by mobileunlockers; 09-04-2016, 04:25 PM.

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