Question about Philips 42PFL7422D 42 in. LCD TV
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Posted on Jan 02, 2017
This problem is related to two failures, one is the Power Supply Board, another one is the Y-Main Board. Troubleshoot procedures:
1. Disconnect the Vs Power Supply cable from the Power Supply Board,
2. Turn on the tv and check the Vs voltage on Power Supply Board,
3. If the Vs voltage is there, then the Y-Main board failed.
4. If the Vs is not there, then the Power Supply Board failed.
Posted on Jan 19, 2008
open the back of the set and inspect the power supply board -- there should be two fuses on the board- they cost around 2 dollars at radio shack -- check all connections for wear or damage -- there are two boards in most televisions -- a power supply board and a audio / digital board -- one is probably board
Posted on Mar 03, 2009
I have a Phillips 42FD9954/17S and every time I try to turn it on I also get the power red light blinking and sometimes it will try to turn on with a bunch of clicking noises and it will be green for a while then turn red. What I do and its very weird but works, put a blow dryer on hot and blow it under the tv on the side of the power button for about 10 minutes and it will turn on. I took it apart and there is a heat sink that if i put the blow dryer directly onto it on heat it turns on in less than a minute. Can someone tell me how I can fix this heat sink? I cant take it off. I want to put some thermal compound to see if that works. Give it a try I promise it will work. The Red Light has to be on put the heat on it and then press the power button, if you hear it clicking and green then back to red you are almost there. Keep putting heat on it and it will turn on.
Posted on Mar 31, 2009
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