The green power light in the hinge area (located on the icon PCA) indicates the power state. The green lights on the main battery or secondary battery indicate its charge level. Table 1-5. Indicator Lights (Icon PCA and Battery) Using Functions Keys (F1 through F12) The top row of the keyboard has twelve function keys that serve as hot keys—shortcut key sequences—for various system controls. For an external keyboard, CTRL+ALT is normally equivalent to the Fn key. Table 1-6. Function Keys (F1-F12) 1-6 Product Information HP OmniBook 2100/3000/3100 Light Meaning OmniBook 2100/3100: Power Light Steady green light Blinking green light No light OmniBook is running (On mode).
OmniBook is suspended (Suspend or Standby mode). OmniBook is off (Off or Hibernate mode). OmniBook 3000: Power Light Steady green light Blinking green light No light Battery is charging (ac power connected). Battery is not charging (ac power connected), or computer is Suspended (no ac power). Battery is not charging (no ac power). Battery Lights Show battery charge level only while the button is pressed on the battery. The number of lights that turn on indicates the charge. Hot Keys Effect Fn + F1 Decreases the display’s brightness. Fn + F2 Increases the display’s brightness. Fn + F3 Decreases the display’s contrast (DSTN displays only, if available).
Fn + F4 Increases the display’s contrast (DSTN displays only, if available). Fn + F5 Switches among the built-in display, an external display, and simultaneous displays. Fn + F6 (hold) For use with two batteries: The battery indicator in the status panel briefly displays the individual battery status for each battery. Fn + F7 Toggles the sound on and off (mutes sound). Fn + F8 Toggles the built-in keypad on and off. Does not affect an external keyboard. If Num Lock is on, then the numeric functions are active—otherwise, cursor control is active. Fn + F9 Toggles Num Lock (numeric functions for the keypad) on and off. Fn + F10 Toggles Scroll Lock on and off. Fn + F12 Enters Hibernate mode.
Fn + R Enters Suspend mode. Fn + S Enters Standby mode. Fn + UP-ARROW Increases sound volume. Fn + DOWN-ARROW Decreases sound volume.