Question about Philips 20PT6441 20" TV

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My Philips 20' TV Dead condition

While switch on the TV some tick tick noise come. But i removed the board & Line Transformer then switch on its Power ON. Please clarify what was the problem. Problem with Line Transformer or Picture Tube.

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Ok clicking tends to a relay trip do to over power caused by a dead fuse. unscrew your tv after you unplug it look at the board pull the fuse and replace its usually says like 250v blah blah blah and that should do you if that doesn't do the trix then it may be a blown compacitor wich you can't fix your self, unless educated in soldier repair.

Posted on Jul 12, 2009

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If you still haven't thrown the set away . . . The ticking noise can come from different sources; either a relay that is tripping so the set doesn't burn your house down, or the horizontal output transistor is shorted shutting the set down, or there are failed components in the power supply.
I'm not sure which 'line transformer' you suspect but it isn't a likely place to look for this problem.   

Posted on Jan 10, 2009

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Your Philips Tvs line output section has some trouble with it. All philips power supply circuits are so designed that, even a small short circuit in the ciruit board occurs, the power regulator will sense it, and the entire system will shut down, and that is happening now in your TV.

You just start with the horizontal output transistor, fitted very close to Line Output Transformer [LOT], for any short. You must desolder it out from the circuit for this check, and check it for collector to emitter leak. If this will happen, the main regulated power supply ie 120VDC, will gets shorted through this transistor, cause a dead short circuit. If it is shorted, you must find out the reason for that short.

If LOT said above has damaged, this transitor will also get shorted. In otherwords, if LOT is damaged, its driver transitor,will also will get leaky. You just replace this transitor with an identical one. Switch on the tv for a while, say 10 seconds or so, check its heat effect. If it heats up abnormally, surely LOT has damaged, and you should replace it also with an identical type and number. Ok

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