HP F1816A - Jornada 720 - Win, User Manual, Page: 163 / 204

Chapter 8 | Troubleshooting | 159
• Position the infrared ports so that they line up and are less
than 1 meter (3 feet) but more than 5 centimeters (2 inches)
apart.
• Make sure nothing is blocking the path between the two
infrared ports.
• Adjust the room lighting. Some types of lighting interfere with
infrared communication. Try moving to a different location or
turning off some lights.
Display
Display Display
Display
If you are having trouble viewing your data, here are some
suggestions.
Screen is blank
If your HP Jornada fails to respond when you briefly press the
On/Off button, be sure you have pressed the button firmly. If that
does not work:
• Make sure the main battery is installed properly.
• Adjust the display contrast. On some devices, the screen can
darken or lighten to the point that it appears to be turned off.
• Reset your HP Jornada. (See the Resetting section in this
chapter.)
• Recharge the main battery.
Screen is dark
Prolonged exposure to direct sunlight may cause your
HP Jornada screen to temporarily darken. This is a normal
occurrence with LCD screens and is not permanent.
Resetting
Resetting Resetting
Resetting
Occasionally, you will need to reset your HP Jornada, for
example, after you restore data from your desktop PC or when
the operating system stops responding. There are two methods of
resetting: