User manual

Chapter 5 Troubleshooting 18
The status LED
is red, blinking
• The computer is powered on, running under battery power, and the charge level in the
battery is at a minimum warning level. Plug the computer into an AC/DC power source
or install a charged battery.
Display screen is
blank or difficult
to read
• Confirm that the computer is on (the Power icon is continuously displayed in Status
area).
• The brightness may be set too low, causing the screen to appear too dark. To change
system brightness, press Settings Icon, Display, Brightness.
• The video time-out may have expired. Tap the display screen to reactivate the display.
Note: This is a normal, power-saving feature.
Headphone or
speaker volume
is too low
• The volume may be in Mute mode or set too low. Follow the instruction to adjust
headphone or speaker volume.
• Make sure the volume control in your audio software is set to an audible level.
An external
device is not
working with
the computer
• The device may need to be enabled in the computer’s configurator program. Contact
your local help desk or reseller.
Issue Possible Cause and Solution