HP — OmniBook 4100 User's Handbook (EN)

Observe the following guidelines to extend the life of the backlight in the OmniBook display. • Set the brightness to the lowest comfortable setting (Fn+F1). • When working at your desk, connect an external monitor and turn off the internal display (Fn+F5). • Avoid using a screen saver or other software that prevents the OmniBook from changing to Suspend or Standby mode after a time-out period. • Do not disable Suspend and Standby time-outs. • If you are using ac power and have no external monitor attached, change to suspend or standby when not in use. Adjusting the Sound System • To adjust the volume manually. • To adjust the volume in Windows.

The OmniBook supports Sound Blaster Pro-compatible sound and the Microsoft Windows Sound System. To adjust the volume manually • To increase the volume, press Fn+UP-ARROW. • To decrease the volume, press Fn+DOWN-ARROW. • To temporarily silence the speaker without changing the volume setting, press the mute button on the right side of the OmniBook. To adjust the volume in Windows 1. Click the speaker symbol in the taskbar. 2. Drag the volume control bar up or down to adjust the volume. 3. To temporarily silence the speaker without changing the volume setting, click Mute. Using the OmniBook Keyboard • To use the Fn hot keys. • To use the Windows keys. • To use the embedded keypad.

• To use the Alt Gr key. Warning Improper use of keyboards and other input devices has been associated with ergonomic injury. For information about reducing your risk, see Working in 16