Question about Philips 50PFL3807 - 50"" Class 49.6 viewable LCD TV

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My philips 50pfl3807/f7 wont stay on

Cant get to the menu because it goes to a black screen and no response from volume, menu, nothing works.

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Posted on Jan 02, 2017

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SOURCE: Philips 46PP9302 46 in. Rear projection -

The power supply section is not working.
Common possibilities are:
- Convergences amps have failed overloading the supply
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

Posted on Jan 22, 2008

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http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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Make sure you back up all songs on the GoGear before attempting this solution.

1) Back up all files on the GoGear
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Now you can do the firmware upgrade that will prevent this problem from occuring in the future. Open up Philips Device Manager and click the Update tab. This problem was caused because most GoGear's were designed for Windows XP with Media Player 10 (which is no longer the latest standard).

-Tha Mp3 Doctor

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