HP Omnibook Xe4500 Service Manual

HP Omnibook XE4100/XE4500 Troubleshooting and Diagnostics 3-7
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Sluggish startup or
shutdown.Use Tools tab in disk’s
Properties sheet to check
hard disk. Use Disk
Defragmenter to optimize
hard disk.
Delete temporary and
unneeded files.Hard drive.
Error message
such as “Invalid
system disk” or
“Auto IDE error”.Check for disk in floppy drive.
Check boot order in BIOS
Setup.
Remove and reinstall hard
drive.Hard drive...

3-8 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Turns off
immediately after
turning on.Battery may be extremely
low. Plug in AC adapter or
insert charged batteryBattery.
Does not run on
battery; empty
battery indication.Check battery and contacts.
Try another battery if
available.Battery or contacts.
Motherboard.
Beeps repeatedly. Notebook beeps repeatedly
when battery is low. Connect
AC adapter or replace...

HP Omnibook XE4100/XE4500 Troubleshooting and Diagnostics 3-9
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Notebook resumes
slowly from Standby
mode.Notebook can take a minute
or longer to resume if
network card is installed.
Blinking cursor appears while
system is loading and
checking hardware and
network connections. W hen
hardware is reinitialized,
W indows desktop appears.
Does not suspend
to Standby mode as
expected.Notebook won’t suspend if
connection to...

3-10 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Local area of dark
or light discoloration
visible when display
is on.Caused by excessive
pressure applied to
area on screen.Declared to be caused by
customer abuse.
External display
does not work.Check connections.
Press Fn+F5 several times.
Try display on another
computer.External display.
Motherboard.
Hard disk
Hard disk never
spins.Check power source....

HP Omnibook XE4100/XE4500 Troubleshooting and Diagnostics 3-11
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
CD/DVD drive
Particular CD or
DVD not playing
properly.Check disk for proper
insertion, dirt, or damage.
Clean with soft cloth or
replace as needed.
If CD was created on CD-RW
drive, try using HP certified
media. Read and write
quality can vary for other
media.
Cannot read any
CD or DVD.Restart notebook.
Make sure CD/DVD drive is
installed properly.CD/DVD...

3-12 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Embedded numeric
keypad does not
work.Press Fn+F8 to activate
numeric keypad, and Lock
key to turn on number lock.
Avoid touching touch pad
while booting or resuming.Keyboard.
Motherboard.
PS/2 keyboard and
mouse with Y-
adapter do not
work.Check devices separately. Y-adapter.
PS/2 device.
Motherboard.
Touch pad
General problems. Reset notebook (see page 1-...

HP Omnibook XE4100/XE4500 Troubleshooting and Diagnostics 3-13
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Sound does not
record.Use an external microphone
(internal microphone
normally not included).
Check software controls.
Test audio with e-Diagtools
diagnostics.Switchboard PCA.
Motherboard.
Serial/Parallel/USB
General problems. Check connections.
Restart notebook.
Use troubleshooters in
W indows Help.
Check settings in Control
Panel.
Check port settings in...

3-14 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
LAN/network
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 W indows
Help.
Check settings in Control
Panel.
Make sure LAN cable is
Category 3, 4,...

HP Omnibook XE4100/XE4500 Troubleshooting and Diagnostics 3-15
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Wireless
General problems. Check TCP/IP setup in
Control Panel.
Check SSID, channel, and
encryption settings.Mini-PCI card.
Antenna PCAs.
Motherboard.Make sure all cables are
properly connected to mini-
PCI card and motherboard.
Check for damaged coaxial
cables or connectors.
One-Touch button
problems
Buttons not working
properly.Make sure correct...

3-16 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Notebook pauses
or runs sluggishly.May be normal W indows
behavior (background
processing can affect
response time).
Certain operations (such as
virus scanning or file
browsers) can affect
performance.
Press Ctrl+Alt+Del to see if
an application is not
responding.
Restart notebook.
If hard disk has spun down to
conserve power, it can take
several seconds to...