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LG55LV5300-uA 55" TV just died

Discussion in 'Repairing Electronics' started by Mosaic, Nov 18, 2017.

  1. Mosaic

    Mosaic Well-Known Member

    Joined:
    Jun 3, 2010
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    Location:
    Caribbean
    Didn't use the TV for a couple months, powered up and ran for 5 mins then powered itself down.
    Unplugged it for a bit, plugged it back in, now powering it up causes a steady beeper sound from the back and ONLY the power light illuminates. Then I hear a relay click and the power light goes off after a few secs.
    Flashlight test on the screen shows nothing. I could test it on a Killawatt to see the max draw.

    TV is 7 years old.

    To me this sounds like a PSU problem. I see the PSU for abt $63 on EBAY, used.

    Any thoughts?
     
  2. Ramussons

    Ramussons Member

    Joined:
    May 15, 2013
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    Location:
    Asia
    Something overheating causing a thermal shutdown......... :confused:
    If so, why overheating....... :(
     
  3. picbits

    picbits Well-Known Member

    Joined:
    Jan 29, 2007
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    Location:
    Northants, United Kingdom
    Inspect / test all electrolytics on the power supply board - these dry out over time and can cause these symptoms.
     

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