Hisense LEDN40K Back lights

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  • provider10
    Senior Member
    • Mar 2016
    • 52
    • South Africa
    #1

    Hisense LEDN40K Back lights

    Hi All

    Got a problem with a Hisense LEDN40K. There is no back light . when I check the LED strips ( of which there are 8 with 5 LEDs on each one) I find that a lot of them are blown, there isnt one strip functioning. some have 2 leds working some none and in total there are26 LEDs blown out of 40. The weird thing is I have had this problem 4 times previous customers have refused the quote. But I would like to get to the bottom of this. does the PSU go faulty and blow all the LEDs.
    Any input would be gratefully received

    James
    Last edited by SMDFlea; 10-07-2020, 07:17 AM. Reason: Added LEDN40K to thread title
    Tags: None
    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12206
      • U.S.
      #2
      Re: Hisense LEDN40K Back lights

      Is this the same tv that messed up 4 times?
      Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

        Comment

        • provider10
          Senior Member
          • Mar 2016
          • 52
          • South Africa
          #3
          Re: Hisense LEDN40K Back lights

          NO i have had 4 different sets of this model with the same problem . The first three were returned unrepaired, but I would like to get to the bottom of this problem

          James

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12206
              • U.S.
              #4
              Re: Hisense LEDN40K Back lights

              I suspect an over-current situation, there he measures and does a fairly simple resistor mod to lower the current: https://www.youtube.com/watch?v=S2_WtM5DMx0
              Last edited by nomoresonys; 10-08-2020, 04:58 AM.
              Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                Comment

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