HP Omnibook 500 Service Manual

HP Omnibook 500 Troubleshooting and Diagnostics 3-9
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Main battery does
not charge.Check the power source.
Make sure the main battery is
installed properly.
Check the battery contacts. If
available, try another battery
and AC adapter.
Move the computer away
from any heat source. Unplug
the AC adapter and let the
battery cool down. Check for
blocked air vents.Battery or contacts.
AC adapter.
Motherboard.
Heatsink/fan.Check...

3-10 Troubleshooting and Diagnostics HP Omnibook 500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Punctured display. Declared to be caused by
customer abuse.
Vertical crack near
center of display.Usually caused by
closing display with
pencil-sized object on
keyboard.Declared to be caused by
customer abuse.
Scratched display
glass.Declared to be caused by
customer abuse.
Local area of dark
or light discoloration
visible when display
is on.Caused by excessive...

HP Omnibook 500 Troubleshooting and Diagnostics 3-11
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
CD-ROM/DVD drive
Cannot read a CD
or DVD.Make sure the CD/DVD is
clean and inserted properly.
Make sure the drive module
is inserted properly.
Restart the computer. Reset
the expansion base.CD/DVD drive
module.
Region Code error
when playing a
DVD.DVDs can contain embedded
regional codes that prevent
them from playing outside
the region in which they are
sold. This...

3-12 Troubleshooting and Diagnostics HP Omnibook 500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Memory
Out of memory
message appears.Delete temporary and
unneeded files on drive C.
If using third-party SDRAM
module, check HP Notebook
web site to see if the module
has been tested for use with
this computer.
Test the memory with the
e-DiagTools diagnostics.SDRAM module.
Motherboard.
Memory doesn’t
increase after
adding SDRAM.Use only PC-100 SDRAM
modules.SDRAM...

HP Omnibook 500 Troubleshooting and Diagnostics 3-13
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
USB
General problems. Check connections.
Try one device at a time.
Check settings in BIOS
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.Motherboard.
Expansion...

3-14 Troubleshooting and Diagnostics HP Omnibook 500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Infrared
General problems. Check installation: when
shipped, infrared is disabled
and no drivers are installed.
(Drivers are included with
notebook.)
Check settings in BIOS
Setup.
Remove any PC Card from
notebook (possible IRQ
conflict).
For fast IrDA, check for DMA
conflict with ECP parallel
port.Motherboard.
Wireless
General problems. Check TCP/IP setup in
Control...

HP Omnibook 500 Troubleshooting and Diagnostics 3-15
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
PCMCIA
General problems. Restart the computer.
Remove and reinsert the PC
Card.
If the card requires an IRQ,
make sure one is available.
Check settings in Control
Panel.
Check for conflicts or refresh
the device list in Device
Manager.
Check the HP Notebook web
site for installation
instructions (page vi), and to
make sure the computer
supports the problem card.
W hen...

3-16 Troubleshooting and Diagnostics HP Omnibook 500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Computer pauses
or runs sluggishly.May be normal W indows
behavior (background
processing can affect
response time).
Certain background
operations (such as
VirusScan) can affect
performance.
Press CTRL+ALT+DEL to
see if an application is not
responding.
Restart the computer.
If the hard disk has spun
down to conserve power, it
can take several seconds to
spin up (you...

HP Omnibook 500 Troubleshooting and Diagnostics 3-17
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Does not suspend
to Standby mode as
expected.The computer won’t suspend
if it has an active connection
to another computer.
If the computer is busy, it
normally waits to finish the
current operation before
suspending.
Does not
automatically enter
Hibernate mode as
expected.For W indows 2000, make
sure hibernate support is
enabled in Power in Control
Panel. Also, make...

3-18 Troubleshooting and Diagnostics HP Omnibook 500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Expansion base
Computer won’t
undock or gets
stuck.Use the emergency undock
latch.
Test the expansion base with
e-DiagTools diagnostics.Expansion base.
Port on expansion
base isn’t working.Make sure the computer is
docked properly.
Reset the computer and the
expansion base.Expansion base.
Motherboard.
Computer does not
respond to undock
switch or Eject
command.Check...