Heat Problems
Keep in mind that your notebook normally gets warm during routine operation. Charging the battery
and running games and other programs that drive CPU usage toward 100% can further increase the
notebook's temperature.
If the notebook gets unusually warm
•
Always set the notebook on a firm, flat surface, so that air can flow freely around and beneath it.
•
Make sure the air vents on the right side and back of the notebook are clear.
•
Make sure the fan is working properly. If needed, test the fan's operation with the e-DiagTools
diagnostics— see "Using the e-Diagtools Diagnostic Tests" on page 32.
Infrared Problems
If you have problems with infrared communication
•
Make sure the line between the two infrared ports is not blocked, and that the ports face each
other as squarely as possible. The ports should be no more than 1 meter apart, with no
obstructions between them. Sunlight, heat from nearby equipment, and other sources of infrared
radiation can also interfere with infrared communications.
•
Make sure only one application is using the infrared port.
Keyboard and Pointing Device Problems
If the pointer is difficult to control
•
Adjust the pointer controls: click Start, Control Panel, Printers and Other Hardware, Mouse.
If the touch pad or scroll pad doesn't work
•
Don't use the touch pad or scroll pad while the notebook is rebooting or resuming. If this happens,
try the following:
•
Press any key on the keyboard.
•
Put the notebook on standby, then resume operation.
•
The touch pad and scroll pad are automatically disabled when the notebook is docked in a port
replicator that has a PS/2 mouse connected.
•
Restart the notebook: click Start, Turn Off Computer, Restart.
•
Check settings: click Start, Control Pad, Printers and Other Hardware, Mouse, Scrolling.
•
Test the keyboard and pointing devices with the e-DiagTools diagnostics— see "Using the e-
Diagtools Diagnostic Tests" on page 32.
If the embedded numeric keypad doesn't work
•
To type numbers, make sure Num Lock is on.
•
Make sure the embedded Keypad Lock (Fn+F8) is on—or that you press and hold the Fn key to
temporarily access the embedded keypad.
20
Troubleshooting and Diagnostics
zt1100/xz100 and xt1000 Series
Troubleshooting and Self-Repair Guide