The Whale sound problems

[whale one of three]

I have a Panasonic 43" Hd Viera model which I bought about 5 years ago.

The sound works but there is a static buz noise that is very annoying.

 

[Reynod]

I'm only rated expert on dolphin sounds ... but I'll ask one of the other peeps.

 

[americanaudiophile]

If you have a cable box connected to the TV then a ground problem in the cable system can cause a constant buzz that occurs regardless of what source you have the TV playing. Try disconnecting the RF cable from the cable box when you are on a different input. If that works you need a ground lift for the cable line
http://www.amazon.com/Viewsonics-VSIS-EU-Cable-Ground-Isolator/dp/B0017I3K9M
If that isn't helpful you may have a ground loop with other causes. Disconnect everything from the TV and see if you get the noise then. If not then this paper on ground loops may help.
http://web.mit.edu/~jhawk/tmp/p/EST016_Ground_Loops_handout.pdf
If you get the noise without anything connected to the TV then it is an internal problem of the TV.