Sunday, 18 March 2012

Samsung LE40A558 power supply

I have a Samsung LE40A558 television that I recently had to repair due to a faulty power supply.  The TV started having trouble during startup with the power LED flashing for a long period before starting - this happened a few times before it stopped working altogether.  I did some research and while I couldn't find anything about this specific model of TV, it seems that there is a common problem with the power supply capacitors in similar TVs so I decided to take the case off and have a look.  Surly enough, the power supply was the same as the ones I'd seen online and the problem capacitors were bulging indicating they had failed.

Bulging capacitors marked in red


I read the specifications off the bulging capacitors and popped down to my local Maplins in Rugby and bought some equivalent ones for about 50p.  I then simply removed the existing ones and soldered then new ones into the gap and voila, the TV was working again!

9 comments:

  1. Nik10 July 2014 at 01:25

    Quick update - I was talking to a friend with a similar problem recently which made me think about this post!

    It's been nearly two and a half years since the repair and the TV is still going strong on a daily basis.

    ReplyDelete
  2. Nik21 December 2015 at 04:57

    It's now December 2015 and my fix is still working and the TV is in daily use!

    ReplyDelete
  3. Nik21 December 2015 at 04:58

    It's now December 2015 and my fix is still working and the TV is in daily use!

    ReplyDelete
  4. Jade Graham15 February 2017 at 09:31

    This comment has been removed by a blog administrator.

    ReplyDelete
  5. Nik7 March 2017 at 03:36

    Quick update - it's March 2017 and the TV is still fine!

    ReplyDelete
  6. Buha Tala11 October 2017 at 00:39

    Surly enough, the power supply was the same as the ones I'd seen online and the problem capacitors were bulging indicating they had failed. Dars enizami

    ReplyDelete
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