iSimple Handheld PC 680/680e - Manual (Page 166)

160 | HP Jornada 680/680e User’s Guide
•
Adjust the room lighting. Some types of lighting interfere
with infrared communication. Try moving to a different
location or turning off some lights.
The HP Jornada cannot send files to or receive files from a Windows CE 1.0 device via
Infrared. Windows CE 1.0 does not support the FastIR file transfer protocol used by your
HP Jornada.
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
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: