Question about Panasonic TH-50PX500U 50 in. Plasma Television

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Panasonic 50" Viera plasma on/off problems

My 50" Panasonic Viera plasma tries to turn itself on (I can hear the electronic clicking noise) but no picture comes on.

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Its the problem in main board.any of the capacitors or ic are getting overheated that needs to be checked and replaced. thanks.

Posted on Jul 13, 2009

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Posted on Jan 02, 2017

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My 50" Panasonic Viera plasma tries to turn itself on (I can hear the electronic clicking noise) but no picture comes on.


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Mar 12, 2017 | Panasonic Televison & Video

1 Answer

Panasonic viera turn


The problem could be power supply failure.

Jul 17, 2014 | Panasonic VIERA TC-P50U50 50-Inch 1080p...

1 Answer

How to reset tv


hi Tracie,
is the set making a clicking noise?
is the power light flashing on the front?
or no power light at all just dead?
if the set is just dead, just put your ear to the back vents can you hear like a very faint screaming noise and can you smell and burning in the vent?
if so it just could be capacitors on the power board.
if its clicking the that will need a service kit on the power supply board.
if the power led is flashing then you will need to count how many flashers from start to finish when you first turn set on.
hope this helps.
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Jun 20, 2014 | Panasonic "Viera Tc P65 Gt30 65"" Class 3...

2 Answers

NO POWER FOR A PANASONIC VIERA TH-50PZ800A


I would suggest you try different power points in your house to eliminate whether the cause of the problem is based on your TV.

If it is the TV check the cable for any damage. you can view more detailed information at http://www2.panasonic.com/consumer-electronics/support/Televisions/VIERA-Plasma-HDTVs/Operating-Instructions/model.TH-50PZ800U.O#ts

There is also a guide for the warranty of the unit.

May 23, 2011 | Panasonic TH-50PZ800U 50 in. HDTV Plasma...

1 Answer

Panasonic 50 inch plasma


You should call for warranty service. If the set is very new try to get it exchanged.

There are some very heavy duty power supplies and many high power matrix drivers used in Plasma sets.

The description sounds like the noises are very loud. It is normal with any of these TV sets, if you put your ear right up to the back of the set at the vent holes you will hear some noises. These would be some acoustic harmonics from the power supplies and related circuits.

I am wondering if it is possible that there is something that is becoming less stable. If the set is working very well without any failure, so-far this is a very good sign. Before it gets to be a problem, I would have this checked.

On many models of these sets, they use fans for cooling specific areas. A bad fan can cause noise.


Jerry G.



Apr 13, 2008 | Panasonic 50 in. Plasma TV

4 Answers

Tv making clicking noise while I am watching


Hello everyone,

I bought the model TH-50PX60U June of 2007. I've been hearing the very annoying clicking noise as well.

Since the TV has a one year warranty, I just called Panasonic and they've scheduled a tech to come over and take a look at it three days from now.

I will publish the results on the same page.

Oct 27, 2007 | Panasonic VIERA TH-65PV500 65 in. Plasma...

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