HP OmniBook 3000 Service Manual page 52

Symptom Call Center:
Suggestions
Power/Battery
Short battery Turn down display
operating time brightness.
Check power management
settings in BIOS Setup. Try
the default settings.
Inform user that certain
applications can cause
excess power usage. (User
can get power monitor from
www.intel.com and monitor
CPU load.)
Heavy modem use can affect
battery operating time.
Does not run on Check battery contacts. If
battery, empty available, try another battery.
battery indicator
Battery does not Check the power source.
charge
Check battery contacts. If
available, try another battery
and ac adapter.
Check for high ambient
temperature and blocked air
vents.
Secondary battery Check secondary-battery
does not work, contacts.
main battery works
Secondary battery does not
charge until main battery is
fully charged.
Display
Dark display, no Adjust display brightness.
light
Press Fn+F5 several times.
White display
Erratic display
Bright or missing See quality statement on
pixels or lines page 5-2.
Hard disk
Hard disk never Check the power source.
spins
Remove and reinsert the
hard drive. Check the
contacts.
3-4 Troubleshooting and Diagnostics
Repair Center: Repair Center:
Likely Causes Comments
Battery Battery capacity often
(F1382-60901). decreases after a year or
more.
Motherboard
(F1391-60901).
Battery or contacts
(F1382-60901).
Motherboard
(F1391-60901).
Battery or contacts Check ac adapter.
(F1382-60901).
Check fan.
AC adapter
(F1377-60901).
Motherboard
(F1391-60901).
Heat sink (fan)
(F1391-60921).
Secondary battery or
contacts
(F1383-60901).
Motherboard
(F1391-60901).
LCD module If an external monitor
(backlight) displays no image, replace
(F1391-60907). the motherboard instead.
LCD cables or
connections.
LCD module
(F1391-60907).
LCD cables or
connections.
LCD module See quality statement on
(F1391-60907). page 5-2.
LCD cables or
connections.
Hard drive or contacts If the drive case is damaged,
(varies). it can prevent proper
operation.
Motherboard
(F1391-60901). Check the flex cable for
wear.
Hard drive case (flex
cable)
(F1391-60937).
HP OmniBook 3000