Question about Samsung Televison & Video

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Fixya tv I have a Samsung LCD TV. Model Number LN40B530P7FXZA. In January this year my TV picture went out and only had sound. I replace the power supply board and all was well. Well the same thing happen again but this time one of the fuses on the board has blown. I replaced the fuse and as soon as I plugged in the power cord it blew. I did this twice. Should I get another board or is it something else? Thanks.

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  • Samsung Master
  • 73,619 Answers

It sounds that there should be a dead short circuit in the power supply board's circuit. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electric shock. Instead, contact any experienced service technician, or the nearest service center.

Posted on Apr 26, 2013

6 Suggested Answers

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Posted on Jan 02, 2017

a1electronic
  • 30 Answers

SOURCE: flat panel tv blows fuses

next to the fuse that blows is 4 large black diodes2.gif.one of those is common to short out. the bad one would give you areading of zero ohms when checked with a meter. or just replace all 4.most likely its location D603. hope this helps

Posted on Jul 20, 2009

  • 1 Answer

SOURCE: LG 42PX4MVH PLASMA TV - Sound but no picture.

I have the same issue with my LG 42PC3DVA and I narrowed it down to the Y SUS board. After a little research there are a few items that are prone to go. The ceramic fuses (as you found), sometimes the capacitors on the Y SUS, Z SUS, and power supply go along with them You can tell because thy will be bulged at the top instead of flat. I replaced a few of my capacitors - they are only $0.89 each so it was MUCH cheaper than a board.

The other thing that is common on the Y SUS in particular are the FETs (also called MOSFET). They can be replaced if you are good with a soldering gun but they are static sensitive so be grounded. They are also a bit tricky to test so you may want to do some research on how to determine if this is the issue... or you can just replace the whole board.

Posted on Oct 28, 2009

dave1645
  • 834 Answers

SOURCE: My 50

if the fuse was at the or near the AC plug chances are your got a power surge, if you did you got very lucky the fuse was there you might want to get a surge protector on the set ... But sometime you get just a defective fuse as long as the set is working I would not worry about it

Posted on Dec 07, 2009

  • 1 Answer

SOURCE: Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX

You'll find some Samsung power supply boards here : http://www.usefulparts.com/index.php?main_page=index&manufacturers_id=11&sort=20a&filter_id=98&alpha_filter_id=0
but you have to open your TV first and find out model number

Posted on May 10, 2010

diodeic
  • 1622 Answers

SOURCE: I have a Panasonic TH-50PX75U Plasma 50" tv. The

Hello,

All you need to do is to open the back cover of the television to check for burnt transistor , this is always the problem , for you to fix this it require a basic knowledge on electronics,
Your power supply board is not yet dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

I hope this will help out in solving the problem

Posted on Dec 19, 2010

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