HP omnibook xt1000 Service Manual

Page of 105
HP Pavilion zt1100/xz100 Omnibook xt1000 
Troubleshooting and Diagnostics 
3-15 
Symptom 
Call Center: 
Suggestions 
Repair Center: 
Likely Causes 
Repair Center: 
Comments 
Modem will not 
connect at any 
speed. 
Make sure notebook’s 
modem is properly 
connected to wall telephone 
jack. Check cables. 
Verify settings in Control 
Panel. Make sure parity, 
speed, word length, and stop 
bits match on sending and 
receiving modems. 
Restart notebook. 
Run Windows modem 
diagnostics or modem 
troubleshooter in Windows 
Help. 
Open Device Manager. If 
modem is disabled, enable it. 
If it has a conflict, try 
disabling another device. 
Use analog telephone line, 
not PBX or digital line. In a 
hotel, ask for data line. 
Try disabling error correction 
and data compression. 
Download latest modem 
driver from technical support 
area of HP notebook web site 
(see page vi). 
Mini-PCI card. 
Motherboard. 
 
Modem dials 
incorrectly. 
Check number you entered, 
including digits required for 
outside access or long 
distance. 
Check dialing options in 
Control Panel—look for 
duplicate digits for outside 
access or long distance. 
In foreign country, modem 
may not recognize dial tone. 
In Control Panel, disable 
option that waits for dial tone. 
Disable call-waiting. 
 
 
Modem seems 
slow. 
Check for excess line noise 
or static (often difficult to 
eliminate on international 
calls). Contact telephone 
company if needed. 
Disable call-waiting. 
Eliminate extra connections 
in the line. If possible, 
connect directly to wall jack. 
Try another telephone line, 
preferably one used for a fax 
machine or modem. 
Mini-PCI card.