Help to identify part on Sharp lcd tv power supply

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  • RoboShock
    New Member
    • Jan 2013
    • 5
    • United States

    #1

    Help to identify part on Sharp lcd tv power supply

    Hi everyone, this is my first post and I hope I'm posting in the right section.

    On a trip to pick up a family member I was lucky enough to find a Sharp LC-32D47UA TV on a curb. I brought it home and found that the power supply had a few issues. Some of the traces following the AC input were burnt and lifted. Three other parts were also damaged, a 250v fuse, a varistor and another part I cannot identify.

    I found a picture of the same power supply board on ebay and was hoping someone could identify the part. Its the part marked with an arrow and sort of looks like a mini halogen bulb.

    I included pictures of the damage for those interested.

    I appreciate any help or advice that is offered. Thanks.
    Attached Files
    Last edited by RoboShock; 05-10-2013, 12:05 AM. Reason: Forgot to upload the pictures.
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Help to identify part on Sharp lcd tv power supply

    Please repost in the TV section. That is the gas discharge tube for spike/surge suppression.
    it will show open circuit = good.
    That yellow orange disk that is blown is the MOV for the surge/spike suppression. It looks like it has been hit by lighting or 240V.
    MOV is connected between Hot and Neutral after the fuse, when it conducts, it will blow the main fuse.
    You can have a lot of damages in this TV, depends on how far the surge had traveled through the TV circuits.
    Last edited by budm; 05-10-2013, 12:11 AM.
    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

    • RoboShock
      New Member
      • Jan 2013
      • 5
      • United States

      #3
      Re: Help to identify part on Sharp lcd tv power supply

      Thank you for the information and I apologize for bumping this thread.

      Comment

      • PeteS in CA
        Badcaps Legend
        • Aug 2005
        • 3581
        • USA, Unsure of Planet

        #4
        Re: Help to identify part on Sharp lcd tv power supply

        If a power line surge blew away half the MOV, launched the gas discharge tube, shattered the fuse and vaporized traces, that TV (or its power supply) may only be suitable for recycling. That's a lot of damage!
        PeteS in CA

        Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
        ****************************
        To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
        ****************************

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