Sony VGN-T150 - Manual (Page 13)

Using Special Buttons
Your computer is equipped with several special buttons: DVD play buttons, a Sound Effects / Mute button, and Volume Up /
Down buttons. The DVD buttons are located at the top right of the computer and are designed to offer a quick and easy
user interface when playing DVDs. The sound efffects and volume buttons are located at the bottom right of the computer
and are designed to control a variety of audio functions.
Page 13