HP DesignJet 500 Service Manual page 70

Symptom Call Center:
Suggestions
Power/Battery
Short battery Turn down the display
operating time. brightness.
Check power management
settings in BIOS Setup. Try
the default settings.
Restart the computer, press
F6 when the HP logo
appears, and follow the
instructions that appear
onscreen. This process
calibrates the main battery
and any secondary battery in
the expansion base's left
module bay, and requires
four to five hours per battery.
You cannot use the computer
during this process.
Some applications can use
excess power. (Users can
get the Intel Power Monitor
from www.intel.com and
monitor CPU load.)
PCMCIA cards can affect
battery life. Some cards draw
power even while not in use.
Heavy modem use can affect
battery operating time.
Turns off Battery may be extremely
immediately after low. Plug in the AC adapter,
turning on. insert a charged battery (if
undocked), or plug in a
secondary battery (if
docked).
Does not run on Check the battery and
battery; empty contacts. If one is available,
battery indication. try another battery.
Beeps repeatedly. The computer beeps
repeatedly when the battery
is low. Save your work
immediately, shut down
Windows, and insert a
charged battery or plug in the
AC adapter.
Computer stops Disable device settings that
while swapping use extra power during
main battery in Standby (for example, turn
Standby mode. off Windows 2000 Wake On
LAN option).
Shut down or plug in AC
adapter before swapping.
Plug in AC adapter and allow
to stand overnight to
recharge backup battery.
Unplug any USB devices.
3-8 Troubleshooting and Diagnostics
Repair Center: Repair Center:
Likely Causes Comments
Battery. Battery capacity often
decreases after a year or
Motherboard.
more.
Battery.
Battery or contacts.
Motherboard.
Battery.
Backup battery.
HP Omnibook 500