Symptom

Call Center:

Repair Center:

Repair Center:

 

Suggestions

Likely Causes

Comments

USB

 

 

 

General problems.

Check connections.

Motherboard.

Use a loop-back connector

 

Try one device at a time.

Expansion base.

when testing the serial or

 

Check settings in BIOS

 

parallel port—see

 

 

page 3-21.

 

Setup and Control Panel.

 

 

 

 

 

Test ports with the

 

 

 

e-DiagTools diagnostics.

 

 

 

Check for latest versions of

 

 

 

drivers.

 

 

 

If the device is powered by

 

 

 

the USB port, try different

 

 

 

ports: if the device works in

 

 

 

all but one port, replace the

 

 

 

module containing that port.

 

 

Modem

 

 

 

General problems.

Check all cables and

Mini-PCI card.

 

 

connections. If possible,

Mini-PCI panel.

 

 

connect directly to a wall

Motherboard.

 

 

jack. Check line quality.

 

 

 

 

 

In Control Panel, open

 

 

 

Modems (Windows 98) or

 

 

 

Phone and Modem Options

 

 

 

(Windows 2000). Make sure

 

 

 

the parity, speed, word

 

 

 

length, and stop bits match

 

 

 

on sending and receiving

 

 

 

modems.

 

 

 

Open the hardware Device

 

 

 

Manager. If the modem is

 

 

 

disabled, try to enable it. If it

 

 

 

has a conflict, try disabling

 

 

 

another device.

 

 

 

Use an analog telephone

 

 

 

line, not a digital line. In a

 

 

 

hotel, ask for a data line.

 

 

 

Try disabling error correction

 

 

 

and data compression.

 

 

LAN/Network

 

 

 

General problems.

Check all cables and

Mini-PCI card.

 

 

connections.

Mini-PCI panel.

 

 

Try connecting a different

Motherboard.

 

 

computer to the cable.

 

 

 

Check settings in BIOS

 

 

 

Setup and Control Panel.

 

 

 

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).

 

 

 

Run the LAN diagnostic

 

 

 

software—click Start, Run,

 

 

 

then click Browse, and select

 

 

 

the file C:\HP\DRIVERS

 

 

 

\LAN\WINDIAG\SETUP.EXE.

 

 

HP Omnibook 500

Troubleshooting and Diagnostics 3-13

Page 75
Image 75
HP 500 manual Modem, LAN/Network

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