Sharp Aquos PN-LE801 shutting down

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  • Burned
    Member
    • May 2012
    • 18
    • Canada
    #1

    Sharp Aquos PN-LE801 shutting down

    Hello,

    I have a Sharp TV that is powering on with backlight and picture then after 5 seconds it turns off. The front LED blinks after shutting down.

    I checked the power board voltages and have 12v, 5v and 3.3v on the standby when first turned on then the STB goes down to 1.4v after a second.

    Where should I go from here?
    Tags: None
    • mayss
      Member
      • Nov 2016
      • 30
      • Polska
      #2
      Re: Sharp Aquos PN-LE801 shutting down

      Damaged, dry capacitors in the power supply of the standby power line. You have to measure ESR and you will know.

        Comment

        • Burned
          Member
          • May 2012
          • 18
          • Canada
          #3
          Re: Sharp Aquos PN-LE801 shutting down

          Originally posted by mayss
          Damaged, dry capacitors in the power supply of the standby power line. You have to measure ESR and you will know.
          I have checked them all with the ESR meter.

            Comment

            • mayss
              Member
              • Nov 2016
              • 30
              • Polska
              #4
              Re: Sharp Aquos PN-LE801 shutting down

              In that case, the protection is triggered and the TV goes into standby and blinks showing the fault code. Usually it is a faulty backlight diode in the led strip.

                Comment

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