Question about Philips 50PF9631D 50 in. HD-Ready Plasma Television

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50PF9631D won't turn on... red light flashing/blinking 6 times

I have a Philips 50PF9631D/37 Plasma TV that has recently quit working and started flashing the red light on the front six times before repeating this sequence. I have tried plugging it in several times in a row as some people have said to do in these forums, but mine never turns on. Occasionally it will turn the red light to green for a second like it about to turn on before going back to flashing red again, but the screen remains black throughout. I found a service manual for it online and it says that the red light flashing six times indicates a problem with the "5V Supply". I'm unsure of where this is located on the board or if this is completely correct. I now have the back removed from the tv and the capacitors everyone has changed appear to be flat, not bulged, and there isn't any leaking on or around them. Any help in getting my tv running again would be great! I tried a power cord from my printer that was the same type and it now tries to start up every time I turn it on rather than just occasionally.

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  • 158 Answers

Your TV main board is damaged and you need a new one. You can order one on ebay and fix it yourself. Make sure you have the TV model/serial number on the back label of the TV to have the right part when ordering.

Posted on Aug 14, 2015

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Posted on Jan 02, 2017

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SOURCE: Philips 42" Flat Screen Plasma - blinking red light 7 times - HELP please!

6f4eeb8.jpg
Here is a photo of the board where I have removed the two from my TV. You can see the two open holes.

Posted on Dec 12, 2009

  • 1 Answer

SOURCE: philips 50pf9631d/37 no picture sound. Red light flashing

hey crs246, I have the same exact problem with my philips tv same model. Have you gotten any help that you can share with me. Any help would be appreciated.

Posted on Mar 06, 2010

ginko
  • 19396 Answers

SOURCE: My Philips 50" plasma flat screen TV will not come

Hi.

The main board is called the board with the input output connection. The capacitors that blow more often are the ones on the main board. If the capacitors have blown, then there may be more parts that may have been damaged.

Can you please give me the TV full model number, and possibly also the chassis number. Both should be printed in the tag located at the back of the TV.

Thanks.

Ginko

Posted on Jun 04, 2011

  • 1456 Answers

SOURCE: 42pfl7403d/27. Won't turn on normally.

Hello

The symptom you describe is consistent with an overload(short) on one of the power supply output voltages.

If you hear a clicking noise,that is one of the relays ,showing that the TV power supply try to start normally,but then a short condition is detected and power supply shuts off,and all repeats again.

Now from my experience with these units,the most common cause is the power board itself or the Y sustain board.To make the exact determination,further diagnose inside of tv set is necessary(voltages and resistances readings)-a common occurance would be some defective-bulged top capacitors in this power supply you will have to replace the board.

Depending on the models,these boards cost about-$250 to $300 each.Add another $150 for labor and the repair cost will be around-$400-$450.

Posted on Jul 15, 2011

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I'm having the same problem and am about to try this solution. I truly believe this is going to work. I hope this helps!
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