HP OmniBook 3100 Notebook PC - Manual (Page 15)

15
Brightness
• Press Fn+F1 to decrease the brightness.
• Press Fn+F2 to increase the brightness.
Contrast (for DSTN displays only)
• Press Fn+F3 to decrease the contrast.
•
Press Fn+F4 to increase the contrast.
Hint
Brightness affects battery life. To maximize your battery operating time, set the
brightness to the lowest comfortable setting, so that the internal light uses less
power.
To extend the life of the display
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
Fn+F7. Press again to restore the speaker output.
To adjust the volume in Windows
1. Click the speaker symbol in the taskbar.