
20 Hewlett-Packard Jornada 420 Palm-size PC
• Set the display to dim automatically after a short time. To set
dimming: from the Start menu, tap Settings, tap Power,
and then tap the Dimming tab.
• Minimize brightness and use contrast to increase readability.
To set brightness and contrast: from the Start menu, tap
HP settings. For more information about HP settings, see
“Using HP settings” on page 31.
• Turn off sounds you do not need or mute the system speaker.
To mute sounds: from the Start menu, tap HP settings. For
more information about HP settings, see “Using HP settings”
on page 31.
• Connect to AC power when connected to any peripherals
requiring power.
• Connect to AC power when connected to your desktop PC.
Caring for the HP Jornada
Follow these suggestions for long and trouble-free use.
• To clean the screen, wipe it with a damp, lint-free cloth.
• Do not drop the HP Jornada. Accidental damage is not covered
under the Hewlett-Packard express warranty.
• Radiated interference from other electronic equipment may
affect the appearance of the display. To return the display to
normal, remove the P/PC from the source of the interference.
• The HP Jornada is designed to operate at temperatures
between 0 to 40 ºC (32 to 104 ºF). It is designed to maintain
data at temperatures between 0 to 55 ºC (32 to 131 ºF).
Subjecting the P/PC to temperatures outside those ranges may
damage the P/PC or result in loss of data. Be especially careful
not to leave the HP Jornada in direct sunlight or in a car
where temperatures can rise to harmful levels.