HP omnibook xe3 Service Manual

3-8

Troubleshooting and Diagnostics

HP OmniBook XE3

White display.

Adjust display brightness.

Display assembly.
Switchboard PCA.

Erratic display.

Display cable

connection.

Video PCA.
Display assembly.
Motherboard.

Bright or missing
pixels or lines.

See quality statement on
page 5-2.

Display cable

connection.

Display assembly.

See quality statement on
page 5-2.

External display
does not work.

Check connections.
Press Fn+F5 several times.
Check settings in BIOS
Setup.

Motherboard.

Display difficult to
read or part of
desktop not visible.

Check display resolution
(default is 800 × 600 for
12.1-in displays, 1024 × 768
for others).

Hard disk never
spins.

Check power source.
Remove and reinstall hard
drive. Check connector.

Hard drive or

connector.

Motherboard.

If drive case is damaged,
drive may not operate
properly.

Hard disk makes
clunking or
scratching noise.

Back up drive immediately.
Was notebook or drive
dropped?

Hard drive.

Check notebook and drive for
evidence of customer abuse.

Hard disk makes
buzzing or whining
noise.

Back up drive immediately.
Check hard drive installation.
Check for alternate noise
sources, such as PCMCIA
drive or fan.

Depends on source of

noise.

Files are corrupted.

Run virus scan program.
Check disk surface by
running Scandisk (Windows
98) or by using Tools tab in
disk’s Properties sheet
(Windows 2000).
Test hard disk drive with
DiagTools diagnostics.
Use 

Recovery CD, to restore

original factory software.

Use suggestions shown at
left.

Drive capacity is
less than normal.

Check disk surface by
running Scandisk (Windows
98) or by using Tools tab in
disk’s Properties sheet
(Windows 2000).
Check partitions using FDISK
(Windows 98) or Control
Panel, Administrative Tools,
Computer Management
under Storage (Windows
2000).

Hard drive.

Use suggestions shown at
left.
Recreate Hibernate partition,
then partition and format
disk.