Hisense 50r6- no standby, no power, bad main board?

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  • LemoneyF
    New Member
    • Oct 2022
    • 5
    • Australia

    #1

    Hisense 50r6- no standby, no power, bad main board?

    Hi all

    I have a Hisense 50r6 that quit suddenly, immediately after turning it on. It no longer shows red a standby light and will not turn on. Completely dead.

    I have tested the power supply and found the following:

    363V and 373V across the input caps

    bri- 0V
    ana- 0V
    vamp-17.03V
    vamp-17.03V
    stb- 0V
    12V- 9.3V
    12V- 9.3V

    To the extent of my knowledge (...not far!) these numbers are normal for a Hisense power supply in a standby state, though I would like some confirmation that 9v is normal!

    This is the exact power supply:
    http://www.mxmee.com.au/index.php?ro...oduct_id=11815

    I have heard that the main boards are known to go bad, and I have the opportunity to buy one. (not cheap).

    Is there anything obvious I am missing? anything I could try?

    Been a fantastic TV, hoping I can save it. Thanks!
  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12074
    • U.S.

    #2
    Re: Hisense 50r6- no standby, no power, bad main board?

    can you post a good clear picture of the legend/map of expected voltages of the powerboard, looks like its there by those 4 capacitors? or list each pin number along with the description beside it, looks like theres more than the 7 you listed.

    Comment

    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12074
      • U.S.

      #3
      Re: Hisense 50r6- no standby, no power, bad main board?

      looks like something is amiss with those voltages, see if the one labeled stb is connected or not.

      Comment

      • dskall
        Badcaps Legend
        • Oct 2016
        • 2905
        • usa

        #4
        Re: Hisense 50r6- no standby, no power, bad main board?

        Try heating main processor and then try turning it on.
        I assume no responsibility for any stupid suggestions I might post.

        Comment

        • LemoneyF
          New Member
          • Oct 2022
          • 5
          • Australia

          #5
          Re: Hisense 50r6- no standby, no power, bad main board?

          Hi Thanks for the replies,

          Yes this is part of the problem I am having. I cannot find any information relating to expected power output from the board. I cannot recall seeing any information on the board but will look when I get home. Thanks.

          Comment

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