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Sharp LC32LE530E with LED Backlight

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    #1

    Sharp LC32LE530E with LED Backlight

    Hello to all the very good specialists in this forum!
    Got a Sharp LC32LE530E The backlight turns on for 1second then shutdown!
    My Question Is there a problem with the LEDs in the backlight!
    Does anybody got trouble with this LCD?Before I dismantle the panel!
    it is the same as Philips 32PFL6606H/12 Q552.2 Chassis!
    regards to all
    thoma!
    Tags: None
    #2
    Re: Sharp LC32LE530E with LED Backlight

    It could be a LED Driver issue or the LEDS have gone defective.

    Comment

      #3
      Re: Sharp LC32LE530E with LED Backlight

      You can check the DCV at the connector to goes that goes to the LEDs. Good clear pictures of the TV and the board will help.
      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

      Comment

        #4
        Re: Sharp LC32LE530E with LED Backlight

        http://www.electronica-pt.com/esquem...artdown/25418/
        Delta PSU DPS-93BP



        These are the links of schematics of the boards which are inside my lcd tv!
        I studied the schematic of the Delta SMPS!take a hair dryer and when I blow the hot air under the connector CN 2 which is connected to the led strings in the panel suddenly the backlight stays and picture appears!Question Do I warm
        up the LED Driver IC702 which is near of the underside of The Delta SMPS?
        Do you think the ic is broken and is it possible to get it alone or must I change the board?
        regards thoma!
        There is a training of this smps

        Comment

          #5
          Re: Sharp LC32LE530E with LED Backlight

          I am still waiting for the pictures of your boards and the whole backside of the TV.
          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

          Comment

            #6
            Re: Sharp LC32LE530E with LED Backlight

            I have the same model TV where the problem is that the backlights are on but the picture does not show up.

            On startup, the red led flashes about seven times before the backlight turns on and then flashes four times red before turns green, the lcd panel shades darker, but no picture is displayed.

            The PSU keeps buzzing that changes its frequency when backlights turn on and the next time when the screen shades darker.

            Comment

              #7
              Re: Sharp LC32LE530E with LED Backlight

              You really need to post clear pictures of the circuit boards and also give any voltage readings you have taken alongside their names.
              Willing to help but I'm no expert.

              Comment

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