Sharp LC-32D44E - No power

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #1

    Sharp LC-32D44E - No power

    Diagnosis & Repair video:

    http://www.youtube.com/watch?v=5wUuARpFe90&hd=1

    Overall very nice build quality.

    Just accumulated too many lamp errors on its internal counter. Required simple debug and reset.

    User has watched it approx 15.5hrs/day according to manufacture date (3.5 years ago) and lamp timer. I'm guessing they have nothing better to do, or their pets watch it.
    Last edited by tom66; 02-02-2013, 11:44 AM.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.
  • randtek
    Badcaps Veteran
    • Oct 2011
    • 280
    • US

    #2
    Re: Sharp LC-32D44E - No power

    Tom, one thing you should do before returning this set to the owner is to remove the inverter board again, and burnish all of the grounding connections at the screw holes, and the panel back. I have seen several that would throw intermittent panel errors due to poor inverter grounding with the panel. It could take weeks before 5 errors accumulate, but it sometimes happens, so this is important to ensure this one does not come back to you.

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: Sharp LC-32D44E - No power

      What do you mean by burnish? I did tighten all of the screws as I had heard of the grounding issue before but I thought tightening was all that was necessary. Thanks.

      I sell all the TVs I fix (found this on eBay for £25 just 15 miles away, should hopefully sell for £100~£125), so I sure don't want it coming back to me as I offer 3 month warranty whenever I sell something.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

      Comment

      • randtek
        Badcaps Veteran
        • Oct 2011
        • 280
        • US

        #4
        Re: Sharp LC-32D44E - No power

        I rough them up with fine sandpaper to ensure all corrosion is removed, and clean metal is exposed. It may not be visible, but there can be types of corrosion that interfere with the grounding. It is a quick matter to rub them all with sandpaper. A pencil eraser works too.

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: Sharp LC-32D44E - No power

          Hi Tom. Can you please post how to reset timer counter for the sharp in the Factory reset stickied in case I need to do them in the future, thanks.
          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

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: Sharp LC-32D44E - No power

            Done.
            Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
            For service manual, schematic, boardview (board view), datasheet, cad - use our search.

            Comment

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