HP FA974AA - iPAQ 310 Travel Companion Product Manual page 22

Displays the current master volume level. The more number of
arcs, the louder is the sound. The crossed out speaker icon
indicates that the sound output is mute.
Opens the Brightness setting slider below the icon to set the
new backlight level. Tap the screen at the desired backlight
level, or use the wheel to adjust it. This icon is displayed only
when you tap the speaker icon, or press the multifunction
wheel twice.
Opens the Route progress list.
When displayed on the Main menu screen, tap this icon to exit
navigation, and return to the Multimedia application. When
displayed on list screens, tap this icon to delete the item it is
displayed next to.
Opens a new screen where you can edit the item it is displayed
next to.
Opens the GPS Data screen.
Displays the current GPS reception quality status. The more
vertical lines, the better is the reception. A cross means there
is no GPS reception.
Locks the touch screen against accidental tapping. The
hardware buttons can be operated even if the screen is locked.
Reactivates the touch screen.
Unlock
Returns to the Main menu screen.
Opens the Map screen.
Displayed on the top left corner, this button opens the Phone
Dialer application.
On Points of interest (POI) detail screens, tapping the button
calls the number saved with the POI.
Exits navigation, and opens the Music player application.
Returns to the previous screen.
On screens with editable screen content, this icon saves the
changes and exits the screen.
On such screens, the icon returns to the previous
screen without saving.
On screens with non-editable point information, this icon leads
to the Map screen with the selected point in the middle.
14 Chapter 7 Learn the basics