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zt1100/xz100 and xt1000 Series Troubleshooting and Diagnostics 25
Troubleshooting and Self-Repair Guide
Parallel and USB Problems
If a USB mouse doesn’t work properly
• Make sure you followed the manufacturer’s installation instructions completely and have installed
the mouse properly. If not, repeat the procedure.
• Make sure the port connection is secure.
• Put the notebook on standby, then resume.
• Restart the notebook.
• Check mouse settings in Control Panel.
• Check the port settings in Control Panel: click Start, Control Panel, Performance and
Maintenance, System. On the Hardware tab, open the Device Manager, and double-click
Universal Serial Bus Controllers.
If a USB modem doesn’t work properly
• See “Modem Problems” on page 22.
• Make sure the port connection is secure.
• Use the modem troubleshooter (under Networking problems) in Windows Help and Support.
• Check the modem settings in Control Panel.
• Disable the internal modem:
1. Click Start, Control Panel, Performance and Maintenance, System. On the Hardware tab,
open the Device Manager.
2. Double-click Modem to list the current modem devices.
3. Double-click the internal modem, then select the option to disable the modem.
• Check the port settings in Control Panel: click Start, Control Panel, Performance and
Maintenance, System. On the hardware tab, open the Device Manager, then double-click
Universal Serial Bus controllers.
If the parallel port is not working
• Make sure the port connection is secure.
• Check the port settings in Control Panel: click Start, Control Panel, Performance and
Maintenance, System. On the Hardware tab, open the Device Manager, and double-click Ports
(COM & LPT).
• Test the ports with the e-DiagTools diagnostics— see “Using the e-Diagtools Diagnostic Tests”
on page 32.
If the USB port is not working
• Contact the vendor of the peripheral device and check the HP Notebook web site
(www.hp.com/notebooks) for the latest versions of the USB drivers and the driver for the device.
• Check the port settings in Control Panel: click Start, Control Panel, Performance and
Maintenance, System. On the Hardware tab, open the Device Manager, and double-click
Universal Serial Bus controllers.
• Test the USB port with the e-DiagTools diagnostics— see “Using the e-Diagtools Diagnostic
Tests” on page 32.