Question about Emerson LC501EM3 50" 1080p 60Hz Class LCD HDTV

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I have a Emerson LC501EM3. It keeps blowing the fuse when I plug the power up. I can unplug the main board (green Board) and it does not blow but will as soon as I plug it to the power supply board? If I replace a board, which one?

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  • Emerson Master
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It will be best to contact any service technician; before a replacement. There might have other faults too with it. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Posted on Nov 15, 2014

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Posted on Jan 02, 2017

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SOURCE: ba71f0f01042 power board blows fuse

I'm not too familar with this model, but to give you some pointers, you will find when you have this problem the fuse will go straight away as there will be some of the semi-conductors short circuited. Check your bridge rectifier diodes & also the chopper transistor in the power supply. As a general check, test most of the diodes & power transistors & replace any that read short circuit on your meter. Hope this may help you as a guide line.

Posted on Aug 01, 2009

budmrtn
  • 11361 Answers

SOURCE: blows control fuse, have isolated power board, any

It can be shorted bridge rectifier, shorted MOSFET driving the switch mode transformer. Check those two parts first.

Posted on Nov 07, 2009

MNfisherman
  • 11896 Answers

SOURCE: have a emerson blc320em9 a,

You will need to replace your high voltage transformer or flyback. You can get a replacement at http://tigerdirect.partsearch.com

Posted on Dec 12, 2009

  • 8457 Answers

SOURCE: power inverter board didnot solve the problem.

This problems is the causes of the power supply board.The power supply board have problems,it is not giving the tv the wright voltages anymore.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Posted on Nov 15, 2010

Slinteriors
  • 8617 Answers

SOURCE: emerson tv keeps blowing fuse

Shorted power supply is the most likely cause. You can get the replacement power supply board from www.tvrepairworld.com

Posted on Oct 28, 2012

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