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1-8 Product Information Technology Code ID)
Figure 1-5. Keyboard Status Lights
1. Caps Lock. Caps Lock is active.
2. Num Lock. Num Lock is active. (The Keypad Lock must also be on to use the
embedded keypad.)
3. CD/DVD drive activity. The CD/DVD drive is active.
Using Fn Hot Keys
The combination of the Fn key plus another key creates a hot key—a shortcut key sequence—for
various system controls. To use a hot key, press and hold Fn, press the appropriate second key, then
release both keys.
Table 1-3. Fn Hot Keys
Hot Key Effect
Fn+F1 Decreases the display brightness.
Fn+F2 Increases the display brightness.
Fn+F5 Toggles among the built-in display, an external display, and simultaneous display on
both.
Fn+F8 Toggles the built-in numeric keypad on and off. Does not affect an external keyboard. If
Num Lock is on, the numeric functions are active; otherwise, cursor control is active.
Fn+Num Lock Toggles Scroll Lock on and off.
Fn+Page Up Increases the volume (and turns audio on if muted).
Fn+Page Down Decreases the volume.
Fn+Backspace Toggles the mute function on and off.
Fn+any One-Touch
button
Toggles the One-Touch button LEDs on and off (selected models).