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I have a 50" Philips plasma and my screen won't turn on. But the TV seems to be getting power because the standby light blinks and the side ambilight system turns on. I was wondering which board is most likely to get it working if I swap it out for a new one?

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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty

Posted on Dec 16, 2014

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Posted on Jan 02, 2017

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SOURCE: 50 in philips hd plasma with ambilight model number 50PF9631D/37

The backlight inverter board is going just not dead yet.
U need a new board.

Posted on Sep 10, 2009

  • 1 Answer

SOURCE: I have a Philips 50 inch plasma tv. The light is

I have Philips 50 inch plasma TV purchased almost exactly 3 years ago. Completely out of warranty. Paid 1999 bucks for it new. Now Plasma TVs similar to this are 800 bucks. I figured the cost of a repair tech coming to the house would be around 500 bucks.. so I decided I could "do no harm" and look at the power supply. Sure enough, two 3300 uF caps were swollen.. I am far from a true electrical repair person, and if it were not for the caps being swollen, would have no idea that they were bad. I am however a little bit skilled in soldering. So I ordered replacements for about 8 bucks. The caps were actually only 1.50 ea. but the min order fee and shipping brought it to about 8 bucks.. I got them from studiosoundelectronics.com . They came in today and installed them... to my astonishment, my TV works as good as it did when it was new... I must say that I am dissapointed in Philips.. and will never buy another product from them. If it is out of warranty.. they will not even talk to you.. I don't think it is too much to ask when you spend 1999 bucks on a product from them.. I expected my TV to have more than 2.999 years in life in it. Thanks a million to this site for providing soulutions for folks..

Jeff
Florence AL

Posted on Oct 03, 2009

eagle338
  • 4889 Answers

SOURCE: Philips Cineos flat screen TV

Sounds like an issue with the power supply board. We will have to go component by component and you will need to knowledge of using a multimeter. If you are skilled enough to do this then let me know and I will help you troubleshoot it.

Posted on Mar 19, 2010

  • 2318 Answers

SOURCE: My 50 in philips ambilight plasma will not turn on

The failure with your plasma is with defective capacitors in the power supply.
Check the link below with info on how to DIY.
http://www.fixya.com/support/t5048641-easy_replace_capacitors

Posted on Jul 31, 2010

SOURCE: LG 50PC3D 50in. plasma.... TV works

Hi, this could be a problem with the power supply in the tv, it is common especially on some Samsungs and specific repair kits are available quite cheaply if you have good soldering skills, this can also apply to many other Flat Screen TV's .

Usually this is caused by capacitors that have dried up and split, you can normally tell as the capacitors are bulging on the pcb, you can get them in a kit as I said eBayer's sometimes do them or you can buy them indivually from a good electronics components supplier, make sure you get the correct values for each!! marked on the side of the capacitors in xx/x V, xxx/x uF and 105oC. (the x's represent numbers)

The picture below shows the type of theing that happens, the brown ones are bulging/split on the top whereas the black one is fine.

midgefive_26.jpg

High Voltages can exist in these sets, never attempt anything while plugged in and
if in doubt do not attempt it yourself and seek the advice of a qualified TV Technician.

There could also be dry solder joints on the panel, usually applies to the power supply as it's mainly these get the hottest.

Here's an example of what dry joints look like.....

midgefive_27.jpg

High Voltages can exist in these sets, never attempt anything while plugged in and
if in doubt do not attempt it yourself and seek the advice of a qualified TV Technician.


It's also worth considering claiming under the warranty for replacement or repair through you dealer if warranty is valid.

Hope this helps

Midge.

Posted on Feb 12, 2011

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HI:
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Check the tv power supply board for those dying parts call copactors.That the board,where the power a/c cord plug into it.These capacitors are alway bulges or puffing up on it tops.U have tools and know basic electronic?Replaced those dying soon to be dead capacitors,will fix the power supply and have stable tv power again and tv will work.Or try website like Ebay.com to buy a whole refurbish power supply board for the replacement.

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The failure with your plasma is with defective capacitors in the power supply.
Check the link below with info on how to DIY.
http://www.fixya.com/support/t5048641-easy_replace_capacitors

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