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No picture no sound - Philips 60P8341 60" Rear Projection Television

1 Answer

Anonymous

Master 2,382 Answers
Posted on Mar 03, 2011

Anonymous

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Joined: Aug 03, 2010

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Hi, it could be bad inverters or a bad power supply. I'd inspect both boards. you should have 24 volts coming from the power supply to the inverter. If you have the 24 volts, bad inverter. If you don't have the 24 volts, bad power supply.

The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance. The inverter must be tested by reading voltages with a multimeter.

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