Question about LG 50PX5D 50 in. Plasma HDTV

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Samsung plasma does not power on but will click trying to come on

This started about a week or so ago. Powering on the red light flash and a loud click is heard but nothing. This repeats itself over and over . When this started it would eventually power on but now nothing. I have no idea whether this is worth fixing. Please any suggestions

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  • 3 Answers

Check Capacitors on power supply board. I believe CM852 and CM853 are the two I replaced. They only cost a few dollars each and can be replaced with a cheap soldering iron and solder (flux core). The board cost around $150.

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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I have a Samsung Plasma TV Model PN43D490A1D, I had sound but no picture, have replaced some parts but now I have nothing but a flashing red light and a clicking relay.


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If you unplug for a minute and hit the power button it sound like it is coming on then it shuts off and the red power light flashes slowly. The TV is a Panisonic 1080i HDTV, about 6-7 years old. ... I have an old type sony tv with the big back and the red power light keeps flashing and ...

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Why would a red light be flashing instead of powering on?


The power supply keeps trying to start but can't.

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Hello Junior,
This type of failures is commonly due to defective capacitors in the power supply.
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2 for 5vdc and 1 for 12vdc. replace with best quality 1000uF 25V cap.
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