Question about Panasonic Viera TH-42PX80U Plasma TV

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No Power to Panasonic Viera TH-42PX80U

TV was on. Circuit breaker blew for no apparent reason. Re-set breaker but no power to TV. There is outlet power to DVD so know it goes that far. There are no blnking lights nor any power whatsoever getting to the TV. Is ther some sort of fuse in the TV or the power cord that may have blown?

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 39 Answers

SOURCE: tv will not come on

Hello


did you see the standby light? if no you have problem in main power section maybe the fuse is blown you can locate the fuse at the power main board, or if the standby light is light up the problem is the inverter power supply and this section is need to diagnose to find the defective parts...

Angel
Thanks...

Posted on Aug 02, 2009

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techman007

Lavell Turner

  • 1112 Answers

SOURCE: my panasonic viera plasma TH-42PX80U

Hi:
You will need to count the number of red led blinks on the power indicator, if it is at least 10 then replace the power supply it is faulty, In my years of servicing panasonic Plasma, power supply failure is about the most common failue in this class of television from this manufacture.

Posted on Aug 24, 2010

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: I have a TH-42PX80U. The

More likely to have power supply module failure, that will be the first place to look.
Most common failures in PLASMA TV are due to bad power supply module, Z and Y Sustain modules.

Posted on Dec 23, 2010

lovejoy91

Dehancy Barney

  • 691 Answers

SOURCE: My Panasonic Viera TH-42PX80U plasma TV shut down

Bad power supply check shopjimmy.com

Posted on Jan 13, 2011

haifenoj

  • 1 Answer

SOURCE: Viera TH-42PX80U Plasma TV: how to watch movies off the sd card...

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Posted on Mar 27, 2011

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Check and replace its main power regulator board. Before replacing it, check the fuse, can be located on this board itself.

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I have a TH-42PX80U. The picture went black and the red light does NOT blink. I tried a different power cord in a different outlet and still won't turn on.


More likely to have power supply module failure, that will be the first place to look.
Most common failures in PLASMA TV are due to bad power supply module, Z and Y Sustain modules.

Dec 23, 2010 | Panasonic Viera TH-42PX80U Plasma TV

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I have a panasonic th-42px80u, i turned it on and there was a pop and a flash from the back of the tv. It will not power up and have no red light. ive taken apart and inspected power supply board for burn...


Look for a fried (possibly exploded) transistor or diode on the power supply board. In particular, look at the transistor mounted on a heat sink (metal radiator block) between the fuse and the largest transformer on the board. It may also have a damaged regulator chip driving it. Modern TV sets operated by remote controls generally have the power supply split into two sections - standby and main. Your problem is most likely in the main section.

A voltage sniffer won't tell you much - most sets have power right up to the fuse on the power supply board. If the fuse is blown, don't bother replacing it until you find out what blew it - you'll just waste another fuse. I generally start by doing ohmmeter checks (power disconnected!) on the diodes and transistors - anything reading less than 1 Ohm is probably fried or is being shorted through a transformer winding by another fried component. Other readings must be interpreted according to the circuit design.

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TV will not turn on, no red light


First make sure that it is plugged and properly connected to the power source. If it's properly plugged in and you still don't get the red light, check the power outlet by looking at your circuit breaker. Make sure that the breaker supplying the outlet for your television is turned on. If not, reset the breaker by turning it off and then turn it on again. Bottom line is, if you do not have a red standby light, it is most likely that you are not getting any electric supply to your tv.

Fix14

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Forced to factory default: press and hold [VOLUME ( - )] on the TV and press [MENU] on the remote 2 seconds. Exit: Unplug Power to reset.
If it does not help, the main board need to replace. For further questions, please add your comment.

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