Question about Philips 42PFL5603D 42 in. LCD HDTV

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Phillips Plasma 42" TV

Blinking red light only,I unplugged it for acouple of min.and started working for a few days and it is out again,with the blinking red light on again. I have a 42 inch phillips and once i turn it off and leave it for a while the red blinking light turns on by itself. Once i unplug it for a minute it turns back on. Any ideas about whats wrong with it?

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  • dimplesblair Jan 10, 2009

    Philips Plasma Model 42PF5321D/37

    no picture or sound, blinking red light, a few times we have been able to unplug the TV and idgital box and then plug them back in and it will work. This has happened for a few days, now nothing

  • Anonymous Mar 29, 2014

    It also seems to have to do with the heat of the TV

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  • Philips Master
  • 5,568 Answers

It is most likely a power supply failure and if there had been no signs of problems in the video display, it is probably the main power supply rather than one dedicated to the plasma display itself.
You might leave it unplugged overnight to give any stored charge inside the unit a chance to bleed off, the remove the back panel.
The primary supply is normally on a separate board and is characterized by having mostly larger components, including one or more transformers with black ferrite cores. The main supply will be associated closer to the AC input while the high voltage supply which may or may not be separate is not.
If you can locate the board with some confidence, check it visually for any signs of heat such as discoloration of board or components. If it seems OK it may be a candidate for exchange or repair by Philips.
I wouldn't advise removing and sending it before you talk to Philips to see if this is a familiar problem to them. 

Posted on Dec 16, 2008

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Posted on Jan 02, 2017

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