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TV Not turning on

Hi, I have recently been given a broken Phillips 42PFP5532D / 05 which won't turn on, apparently it just stopped working one day. I have working knowledge of PC repair so decided that I would try fixing a TV ago but as I have just found out, they are quite different. I believe the problem lies somewhere on the power board but I'm unable to determine exactly what is wrong the TV. When I plug the TV in you can hear the power click and a blue light appears on the front but the screen is totally black, exactly as it is when the TV is not connected to the power. Upon pressing the the power button on the side of the TV the blue light on the front goes out and no other lights come on, this is also accompanied by another click from the what I can only assume is the power board inside the TV. To try and diagnose the problem further I removed the back panel and plugged the TV into the mains power again. Same thing happened, blue light came on, nothing on the screen. I located the power board and noticed a steady green LED and some reference numbers to error codes. Upon pressing the Power button on the side of the TV again the Same click can be heard, the blue light on the front goes out and the green LED on the power board flashes 9 times and then 10 times. It continues to flash 10 times repeatedly with a small pause inbetween (just to clarify it flashes: 9, 10, 10, 10, 10 and so on). When corresponding the flashes with the error codes printed on the power PCB they are listed as the following: 9: OVP, DC_PROT 10: PROT I have visually inspected the capacitors but can't see and leakage or bulging although I may have overlooked something, I'm not sure. Any help or advice I can get to point me in the right direction would be greatfully recieved, I've got this far but am now are a loose end! Seems a shame to throw it out if it's something that I can fix. Cheers!

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  • Televison & ... Master
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You can be pretty sure something's wrong with the power board. Defective capacitors may "look" OK but aren't. It could be helpful to lay your hands on a schematic.

Posted on Jan 02, 2014

  • Russell Penella Jan 28, 2014

    Just rebuild or replace the power supply board. Cheap on ebay or shopjimmy.

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Posted on Jan 02, 2017

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maatmartin7
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SOURCE: Have a Magnavox 37mf321d LCD TV, one day, went to

Although a capacitor may look good, it may be weak or bad. Here is what you will have to do. Replace capacitor (location) 2074 which is a 25 volt 2200Mf at 105 degrees. Replace capacitor (location) 2081 which is a 35 volt 1200 Mf at 105 degrees. And you should change capacitor 2066 which is a 16 volt 10Mf at 105 degrees. Please be careful with the last cap mentioned. You can easily tear the PCB trace if you are not extremely careful. This should bring your TV back to life. Thanks for asking and show a few hands of support!

Posted on Dec 25, 2010

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