Troubleshooting - Buzzing noise from speakers.

Disconnect all the audio inputs to the TV. Test to see if the "buzzing" sound still present.

If the buzzing is gone it was caused by one of the audio sources. Example. The volume level on the set top box is too high.

If the buzzing is still present your television may require service. Contact a Panasonic Authorized Servicenter When contacting a servicentre make sure to have the model # and serial # of your TV, as well as information discussed in this troubleshooting guide.