HP BOOK XE4500 manual Infrared

Symptom	Call Center:	Repair Center:	Repair Center:
	Suggestions	Likely Causes	Comments
LAN/network
General problems.	Check cables and	Motherboard.
	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.
Infrared
General problems.	Infrared is disabled and no	Motherboard.
	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.

3-14 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500