Question about Panasonic Viera TH-42PX80U Plasma TV
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Posted on Jan 02, 2017
You are missing 15volts. If this is a new TV, it could be as simple as a plug not fully seated on the power supply. Regardless, the repair should be covered by warranty and Panasonic is one of the best when it comes to taking care of the customer. Ifd nI can be of further assistance, let me know
Posted on Dec 21, 2008
SOURCE: Panasonic 42PX80U
Please unplug it for about an hour and try again. If it still does not work, then you will have to do some troubleshooting.
Please see my basic troubleshooting guide here:
Posted on Jun 22, 2010
SOURCE: model # TH-42PX80U tv was
You are better off replacing the power supply board. Usually the mother board will output a power ok signal to turn on the TV only when the power supply is working correctly (all voltages are within specs), similar to a computer, having said so, if you have the schematics you can verify those voltages being output from the power supply upon depressing the power button. The +5v stand by voltage is most likely ok, since the mother board is at least providing you with the blinking light. It is the +12V and +24V which are not being output, along with any other auxiliary voltages. I would suggest either having a replacement board (power PCB) installed or otherwise feeding the needed voltages by substituting those missing ones with a variable DC power supply, just to verify it. Follow above only if familiar with electronics and electricity. safety first!.
http://www.HDalacarte.com guy audio/video/computer technician for over 30 years
Posted on May 26, 2011
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