HP pavilion ze5100 Service Manual

Page of 161
Troubleshooting and Maintenance
Troubleshooting Your Computer
Reference Guide
103
 
Suspend or shut down the computer before you attach the scroll mouse, so that it will
be detected properly.
If you want to use the touch pad again, you must suspend or shut down the computer
before you detach the scroll mouse.
 
Test the keyboard and pointing devices with the e-Diagtools diagnostics. See “Testing
the Hardware” on page 116.
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.
If you can’t type the euro symbol
 
Hold ALT GR when you press the marked key.
 
The euro symbol is not on the U.S. English keyboard. Make sure the embedded
keypad is active (Fn+F8) and Num Lock is on, and then hold ALT while typing 0128
on the numeric keypad.
If you can’t update or reinstall One-Touch software
 
Log in as administrator to perform the update or installation.
LAN Problems
If the built-in network adapter doesn’t connect to the LAN
 
Check all cables and connections. Try connecting at a different network station, if
available.
 
If the green light next to the LAN port does not light, the LAN cable may not be
connected to the network or the network may be down. Try connecting a different
computer to the cable.
 
Make sure the LAN cable is Category 3, 4, or 5 for 10Base-T operation, or Category
5 for 100Base-TX operation. Maximum cable length is 100 meters (330 feet).
 
Click Start, Help and Support (or Help), and use the Networking troubleshooter.
 
Open the hardware Device Manager: click Start, Control Panel, Performance and
Maintenance, System (Windows XP) or Start, Settings, Control Panel, System