HP Pavilion xt500 HP Pavilion & Compaq Presario Notebook PC - Service Manu - Page 89

Symptom, Call Center, Suggestions, Repair Center, Likely Causes, Comments, Wireless, One-Touch button

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Symptom Wireless General problems. Call Center: Suggestions Check TCP/IP setup in Control Panel. Check SSID, channel, and encryption settings. Repair Center: Likely Causes Mini-PCI card. Antenna PCAs. Motherboard. One-Touch button problems Buttons not working properly. On-screen display does not appear when button is pressed. PCMCIA General problems. AC adapter Does not power notebook. Motherboard Evidence of spilled liquid. Bent or broken connectors, or burnt component. Motherboard cracked. Miscellaneous Clock loses time Notebook gets abnormally hot. Make sure correct applications are associated with buttons in One-Touch tab of Keyboard in Control Panel. Make sure Onscreen Display is enabled in One-Touch tab of Keyboard in Control Panel. Restart notebook. Try card in another computer. If card requires an IRQ, make sure one is available. In Device Manager, refresh device list and check for conflicts. Download current drivers from card manufacturer's Web site. Make sure AC adapter has correct power rating. Try another AC adapter, if available. Plug in AC adapter for 24 hours to charge CMOS battery. Always set notebook on a flat surface, so air can flow freely around and underneath it Make sure air vents are not blocked. Games and other programs that drive CPU usage toward 100% can contribute. Keyboard cover. Switchboard PCA. Motherboard. PCMCIA socket. Motherboard. AC adapter. Motherboard. CMOS battery. Motherboard. Heatsink. Repair Center: Comments Make sure all cables are properly connected to miniPCI card and motherboard. Check for damaged coaxial cables or connectors. Using a flashlight, look for bent pins inside the PCMCIA socket. For model XE4500, if only one slot is affected, replace PCMCIA socket. If both slots are affected, replace motherboard. AC adapter cannot be repaired and must be replaced. Declared to be caused by customer abuse. Declared to be caused by customer abuse. Declared to be caused by customer abuse. Charge CMOS battery. Check heatsink for damage or proper fan operation. Check thermal contact between CPU and heatsink. Replace thermal pad if needed. 3-16 Troubleshooting and Diagnostics Service Manual

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Symptom
Call 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
applications are associated
with buttons in One-Touch
tab of Keyboard in Control
Panel.
Keyboard cover.
Switchboard PCA.
Motherboard.
On-screen display
does not appear
when button is
pressed.
Make sure Onscreen Display
is enabled in One-Touch tab
of Keyboard in Control Panel.
PCMCIA
General problems.
Restart notebook.
Try card in another computer.
If card requires an IRQ, make
sure one is available.
In Device Manager, refresh
device list and check for
conflicts.
Download current drivers
from card manufacturer°s
Web site.
PCMCIA socket.
Motherboard.
Using a flashlight, look for
bent pins inside the PCMCIA
socket.
For model XE4500, if only
one slot is affected, replace
PCMCIA socket. If both slots
are affected, replace
motherboard.
AC adapter
Does not power
notebook.
Make sure AC adapter has
correct power rating.
Try another AC adapter, if
available.
AC adapter.
Motherboard.
AC adapter cannot be
repaired and must be
replaced.
Motherboard
Evidence of spilled
liquid.
Declared to be caused by
customer abuse.
Bent or broken
connectors, or burnt
component.
Declared to be caused by
customer abuse.
Motherboard
cracked.
Declared to be caused by
customer abuse.
Miscellaneous
Clock loses time
Plug in AC adapter for 24
hours to charge CMOS
battery.
CMOS battery.
Motherboard.
Charge CMOS battery.
Notebook gets
abnormally hot.
Always set notebook on a flat
surface, so air can flow freely
around and underneath it
Make sure air vents are not
blocked.
Games and other programs
that drive CPU usage toward
100% can contribute.
Heatsink.
Check heatsink for damage
or proper fan operation.
Check thermal contact
between CPU and heatsink.
Replace thermal pad if
needed.
3-16
Troubleshooting and Diagnostics
Service Manual