Hisense TV 40K321UW no led does not turn on

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  • kalesh
    New Member
    • Dec 2021
    • 3
    • fiji
    #1

    Hisense TV 40K321UW no led does not turn on

    Hello everyone.

    I have a Hisense TV 40K321UW that has no led and does not turn on.

    I have tested the power supply board
    It has 12v at the 12v output when it's not connected to the motherboard. and it has 3.3v at the 12v output when it is connected to the motherboard. It has 0v at the 16v output.

    The motherboard has 3.3v at some points, but not at the point marked 3.3v on the motherboard and also not at the eeprom (all pins of eeprom are at 0v)

    I have attached image of some of the points where 3.3v was available.

    Does anyone have any ideas on what to check next?

    Thanks.
    Tags: None
    • kalesh
      New Member
      • Dec 2021
      • 3
      • fiji
      #2
      Re: Hisense TV 40K321UW no led does not turn on

      missed the attachements
      Attached Files

        Comment

        • dskall
          Badcaps Legend
          • Oct 2016
          • 2905
          • usa
          #3
          Re: Hisense TV 40K321UW no led does not turn on

          Need better pictures. You will need around 1v for main processor voltage. The coils should have voltages on them.
          I assume no responsibility for any stupid suggestions I might post.

            Comment

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