Panasonic 50" Viera plasma on/off problems

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.

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.
Panasonic TH 42PX75 80 TH C42hD18 Dead TV Repair Fix TXN P1XGTUS HNTUS... Panasonic TV Won Turn On Learn How to Replace Your Power Supply FIX Panasonic Viera 42 inch Plasma SU BOARD TH 42PX75U Diagnosis Repair...

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.

try to check power supply look for swollen capacitor it is the common trouble of plasma and lcd.

http://www2.panasonic.com/consumer-electronics/support/Televisions/VIERA-Plasma-HDTVs/model.TH-C50FD18
Download manual it shows a Pictorial connect up How to.

Go here for the download
http://www2.panasonic.com/consumer-electronics/support/Televisions/VIERA-Plasma-HDTVs/model.TH-50PX75U

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.

Panasonic has EXCELLENT Customer support. Just go to:

http://www2.panasonic.com/consumer-electronics/support/Televisions/Plasma-HDTVs/model.PT-42PD2-P

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.