HP OmniBook 6000 Service Manual page 59

Symptom Call Center:
Suggestions
Battery does not Check the power source.
charge.
Check the battery contacts. If
available, try another battery
and ac adapter.
Move the computer away
from any nearby heat source.
Unplug the ac adapter and
allow the battery to cool
down. Check for blocked air
vents.
Secondary battery Check the power source.
does not charge.
Make sure main battery is
fully charged. If not,
secondary battery will not
charge.
Check contacts on second
battery.
Battery indicator is The Time Remaining is an
inaccurate. estimate based on how
quickly the computer is using
power at the moment. It
therefore depends on the
current task, and assumes
that power will be used at the
same rate until the battery
runs out. So, for example, if
the computer is performing a
task requiring a good deal of
power (such as reading from
a CD or DVD), the value will
probably show too little time
remaining.
Display
Dark display, no Adjust display brightness.
light.
Press Fn+F5 several times.
Try external monitor.
White display. Adjust display brightness.
Erratic display.
Bright or missing See quality statement on
pixels or lines. page 5-2.
HP OmniBook 6000
Repair Center: Repair Center:
Likely Causes Comments
Battery or contacts. Check battery and ac
adapter.
ac adapter.
Check heatsink.
Motherboard.
Heatsink.
Second battery or
contacts.
Motherboard.
Display cable Set DIP switch on display
connection. interface PCA to match label
on display cable. Reprogram
Display assembly.
EEPROM for display type—
Motherboard.
see page 2-26.
Check the cable connection.
Replace the display
assembly.
If an external monitor
displays no image, replace
the motherboard.
Display assembly.
Display interface
PCA.
Display cable
connection.
Display assembly.
Display cable See quality statement on
connection. page 5-2.
Display assembly.
Troubleshooting and Diagnostics 3-7