Dell P129G - Bottom side component identification; Keyboard shortcut functions

Bottom view
1. Air vent
2. Service tag location
3. Speakers
Keyboard shortcuts
NOTE:
Keyboard characters may differ depending on the keyboard language configuration. Keys that are used for shortcuts
remain the same across all language configurations.
Table 2. List of keyboard shortcuts
Keys Primary behavior
Fn + Esc
Toggle Fn-key lock
Fn + F1
Mute audio
Fn + F2
Decrease volume
Fn + F3
Increase volume
Fn + F4
Play/Pause
Fn + F5
Turn on/off keyboard backlight
Chassis overview 11