Panasonic TOUGHBOOK CF-28 - Manual (Page 23)

Battery Indicator
The red indicator lights.
Repeated beeping sound
while the computer is in use.
The battery level is low. Save your data and powxr off your computer.
After connecting the AC adaptor or replacing the battery pack with a fully charged one, turn
your computer on.
The red indicator blinks • The battery pack or recharging function may be defective. Quickly remove the battery
pack and disconnect the AC adaptor, then connect them again.
• If the problem persists, contact Panasonic Technical Support.
The orange indicator blinks Unable to charge because of an improper temperature range. ((^ page 6)
Application Software
Press ( Ctrl ^ + C Alt ) + C Del )and then select [Shut Down].
After shutting down by rotating the power switch for more than four seconds, rotate the
power switch to power on and open the application again.
If the program no longer works normally, go to [Start] - [Settings] - [Control Panel] -
[Add/Remove Programs] to delete the program. Then, reinstall the program.
Reference Manual
The Reference Manual is Is Acrobat Reader installed?
not displayed If Acrobat Reader is not installed, run [c:\util\reader\ar500enu.exe] in [Start] - [Run] to
reinstall the program. When installing the program, do not change the installation destina­
tion folder. If the destination folder is changed, the Reference Manual cannot be opened
from the [Start] menu.
Shutting down
Do not shut down Windows during music playback.
If a USB device is connected, try removing it.
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