Good I have on TV 20 ", h Goolstard brand makes a buzz. The image looks good. I am not technical. But will the sound layers are? If this is how they change?

The buzzing can be by devaluation of capacitors in the audio stage or at its power supply. It may even be the cause, depending on the case, transistors or amplification IC. The capacitors are exchanged for the values ​​they indicate in their body. Indicate Model and / or Chassis of the TV, for better attention.

Greetings friend ... will there be the TV? Do you know if the buzz is on the speaker or on the TV board? Turn the volume down to zero or disconnect the speaker to see if the noise is removed if the hum is not removed, it comes from the other side maybe from the flyback or the source ... a bad chopped or broken speaker could cause distortions in the sound but you have to try the above to discard ... if the tv has dvd inputs try if the buzz is heard there too ...