Question about Philips 42PF9630A 42 in. Plasma Television

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Power problem for phillips 42 plasma 42pf7321d/37

My tv is just over 1 years old. I believe the power board has gone out but seeking advice. I opened up the back and on the power board far left side above the word "buffer" there is the chip that stands up and that led light blinks 3 times at an interval of one blink per second followed by a 3 second pause. what does this mean. I am not an electrician but know how to change a board if that is the only problem. Thank you for any help you can offer

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  • ssgkillion Aug 20, 2008

    The front of the tv used to blink 4 times red and on philips website it had a fix for this problem by updating the software/firmware. I downloaded and installed into TV usb port. The only thing this did was take care of the blinking LED on the front. The back power board led light blinks 3 times now which means vscan according to alarm sig under the chip. When someone on here said to unplug the cable and see if power stays on, that is what I did and power board, board with all the AV inputs, and the board under it(think the logic board). With that cable plugged in, the power goes on the entire tv. So what else needs to be trouble shot.

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That blink don't mean nothing. Measurements need to be made. Don't just buy the board troble shooting would need to be done to see witch board is bad. Also look on the fron of the set and see how many time the led flashes. That wher your error code comes from..

Posted on Aug 19, 2008

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Ur power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get ur tv power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.


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