Maintenance and Service Guide

Service Manual Troubleshooting and Diagnostics 3-17
Symptom Call Center: Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
General problems Check cables and connections.
Try connecting notebook
to another network station (if
applicable). If green light
next to LAN port does not light,
LAN cable may not be
connected to network or
network may be down.
Use networking troubleshooter
in Windows Help.
Check settings in Control
Panel.
Make sure 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).
Test LAN with e-Diagtools
diagnostics.
Motherboard
Infrared
General problems Infrared is disabled and no
drivers installed as shipped.
(Drivers are included.)
Make sure line between
infrared ports is not blocked,
ports face each other squarely
and are no more than 1 meter
apart. Sunlight, heat from
nearby equipment, or other
sources of infrared radiation
can cause transmission errors.
Open Hardware Device
Manager. Try to enable the
infrared port.
Remove any PC cards from
notebook (possible IRQ
conflict).
For fast-IrDA, check for
DMA conflict with ECP
parallel port.
Motherboard
LAN/network