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Phillips # 50p8341 comes on everyonce in awhile. Sometimes it wont come on and the power light will start to blink

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Hello! Your set needs the board that has the microprocessor on it. It is called the "process pcb" and is located on the left side as you look into the back of your unit {with the back cover off, of course!). It stands straight up and is plugged into the signal (or "tuner"pcb). They cost about $100 and are available from tritronicsinc.com. All you have to do is unplug the board from the connector by pulling it straight up. Then you just plug the new board in. Make sure it seats properly. The board is approximately 4" by 4" square. VERY easy repair...you can do it and save BIG $. Just make sure you do it when the ac is unplugged!!! Good luck!!!

barneyluc

Posted on Oct 10, 2008

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Posted on Jan 02, 2017

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Try the power supply. Look on the one in your TV for the part number ; mine is PH3501705441. I ordered one from partstore.com and it was less than $60 shipped. Hope this helps, mine works fine now........and I have a 50P8342 chassis PTV 916

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My phillips model # 50P8341 periodically shuts off on its own. When I turn it back on it plays for a little while then shuts off again.


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Considering that in both cases, the set will turn on but not stay on, indicates either a condition of overheating due to a failed fan or it could be a component going into thermal runaway in the power supply itself that is causing the fault.

This is not a safe area to probe around in since there are capacitors that may contain a charge for a fairly long time.

If the fan cannot be heard, this is probably a cheap repair, otherwise, get an estimate first.

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