Sony Bravia Tv Volume Is Fixed. I use the manual button on the tv, but it only holds for a few seconds, then resume to the maximum setting. On the remote control, press the back button.

I have never seen this before. If the volume cannot be adjusted using the volume buttons on the remote control or television, then perform a power reset on the tv. 3) plug in the cord while the buttons are still pushed, and the screen will display the sony logo.