Sharp LC-60LE830U

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  • dbemowsk
    New Member
    • Feb 2013
    • 5
    • USA

    #21
    Re: Sharp LC-60LE830U

    I thought there may be a different key sequence for this. As mentioned in my earlier post, I was able to get the power LED to come on solid, which I thought might cause it to fire, but it didn't. Obviously the power supply has the backlights shut down for a reason, and I am guessing that that one LED strip is still bad. I just wish I knew where to get one.

    Dan

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    • electronicsurplus
      Badcaps Veteran
      • Jun 2012
      • 210
      • USA

      #22
      Re: Sharp LC-60LE830U

      How exactly would you force start the Power Supply using resistors?

      Do you need to bypass the error detect pin or simply cross 5V Stby and PS on?

      We are asking so others will have a clearer understanding
      This Forum absolutely the best and, the most helpful forum I have ever found anywhere. thanks to all the fantastic members here
      Help keep these from the landfills

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      • electronicsurplus
        Badcaps Veteran
        • Jun 2012
        • 210
        • USA

        #23
        Re: Sharp LC-60LE830U

        Also, many of these Televisions have touch sensor buttons which are not active until the TV is powered on therefore, using a force start to determine whether the power supply is putting out power to the Led strips

        Since, Sharp does use Error Detect and will shut down immediately, is there some other connections needed?

        Which points on the Plug would need to be supplied power or changed to override the error detect.

        We have read somewhere but have lost the link where someone removed a resistor on the back side of the power supply to override the error shut down feature

        Any one have any ideas?

        There are many of these televisions out there which have failed LED Strips that need to be kept from the landfills
        This Forum absolutely the best and, the most helpful forum I have ever found anywhere. thanks to all the fantastic members here
        Help keep these from the landfills

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #24
          Re: Sharp LC-60LE830U

          "Do you need to bypass the error detect pin or simply cross 5V Stby and PS on?" in this case the resistor (470~1K Ohms) between the PS-ON and BU-5V. This is just to verify if the main power supply sections will come on. There are also PNL_PWR control line that send the 12V to the T-CON.
          But you must disconnect the PS-ON wire going back to the main board first.
          You will need to force on the backlghts also.
          Last edited by budm; 08-18-2015, 09:35 PM.
          Never stop learning
          Basic LCD TV and Monitor troubleshooting guides.
          http://www.badcaps.net/forum/showthr...956#post305956

          Voltage Regulator (LDO) testing:
          http://www.badcaps.net/forum/showthr...999#post300999

          Inverter testing using old CFL:
          http://www.badcaps.net/forum/showthr...er+testing+cfl

          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
          http://s807.photobucket.com/user/budm/library/

          TV Factory reset codes listing:
          http://www.badcaps.net/forum/showthread.php?t=24809

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