Buzz from back of the tv

Try another input and another source such as a DVD player. If you still get the buzzing sound, you could have a faulty power supply output or a fault in the audio circuit of the main board.

Poor earth grounding.

Bryce.

My experiance with what you are talking about is sounding like the color wheel going bad. Same thing happened to mine and it was the color wheel. Right around 120.00 and is a easy do-it-yourself job.

Ur tv have a colors wheel design in it.Tv have buzzing,squiling or loud motor noises.Have colors turn in Black&White or flashes white within pictures.All these causes and problems are the effect of the colors wheel is dying and require repacement of the colors wheel,because it is woring out and not spinning correctly on it motor axis anymore.Have no machanical experience taking things aparts and putting it back together again.Don't atempt to change the colors wheel by ur self,bacuse the colors wheel sit way back on the tv,must take out many machanicals parts before u can even come to it to change it.Hire a Tv Tech. to change the colors wheel ok best solutions and no complication taking out the old one and putting in the new colors wheel,for it to functions correctly.

my tv is new too and also makes a buzzing sound and i turned the DCR off and it worked to thanks for the help!!

Hi.

I think you have problem with the main digital PWB

You need change that part.

I had the same problem with the same model.
The solution was to replace a capacitor, C622, which is located near
a small blue rectangular plastic component.
This component is a relay that is controlled by C622. I paid $2.39 for
the part, $8.99 for S&H for a total of $11.38. This fixed my problem!

thre are several components that can make a buzzing sound, especially a bad power component or capacitor. check the capacitors to make sure they are installed in the board correctly. the stripe on the cap must line up with the white mark on the board under it. remove the back panel lay the tv down on a blanket turn it on and see if you can isolate the noise component by ear up close. and visually check for swollen capacitors the top will be pushed up round if bad if good it will be flat on top. warning if tv is less than a year old make the place you bought it replace it. so you dont void the warranty.

Does the buzzing come from the speakers or the back...turn the volume down.. is it still there?

You need to change the Audio / Control Head, as well as the Pinch Roller of the machine. A worn out Audio cum Control Head will reflect in poor tracking and so will cause the above problems.