Question about Philips 27PT543S 27" TV

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My tv wont come on the green light comes on for a few sec then the red light comes on blinking i have a mag flat screen model num 50mf231d137

No pic no sound

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  • 9 Answers

Your high tension transformer is defect.
replace transformator flyback and transistor BU508AF or equal

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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SOURCE: 32 inch tv, 32mf231d/37 light blinking

There two caps on the power supply that the tops will swell up. Change them both and that should get you going.

Posted on Nov 21, 2008

ginko
  • 19396 Answers

SOURCE: blinking red led light

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on May 21, 2009

Bassplyr1
  • 77 Answers

SOURCE: TV set self turn off after few seconds

It sounds like the voltage regulator in your power circuit. Also you have a capacitor that's going bad somewhere and won't hold a charge. That's why the picture is fine for a while then turns green. Unless you service TV's this one will have to be brought into the shop. Unfortunately it'll cost more than the TV is worth to get it fixed unless it's still under warranty. These days TV's that small aren't worth fixing. You're better off buying a new TV.

-An Ex-TV Repairman

Posted on Jul 12, 2009

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Some other pics of different caps: http://i121.photobucket.com/albums/o229/garafrax/TV%20Repair/HPIM1458.jpg

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