HP Omnibook XE4400 Service Manual page 77

Symptom Call Center:
Suggestions
Serial/Parallel/USB
General problems. Check connections.
Restart notebook.
Use troubleshooters in
Windows Help.
Check settings in Control
Panel.
Check port settings in Device
Manager.
Test ports with e-Diagtools
diagnostics.
For USB: contact device
vendor and HP Notebook
web site (see page vii) for
latest USB drivers.
For USB: if the device is
powered by the USB port, try
the other port.
Modem
General problems. Check settings in Control
Panel.
Open hardware Device
Manager. If modem is
disabled, try to enable. If
modem has a conflict, try
disabling another device.
Use analog telephone line (2,
3, or 4 wires), not PBX or
digital line. In a hotel, ask for
data line.
Try disabling error correction
and data compression.
Test modem with e-Diagtools
diagnostics.
HP Omnibook XE4400
Repair Center: Repair Center:
Likely Causes Comments
Motherboard.
Motherboard.
Troubleshooting and Diagnostics 3-13