HP Omnibook XE3 Service Manual page 74

Symptom Call Center:
Suggestions
Display
Dark display, no Make sure notebook is
light. turned on and warmed up.
Check power supply.
Adjust display brightness.
Press Fn+F5 several times.
Make sure SDRAM modules
are installed properly.
Make sure display cable is
connected to motherboard
and switchboard PCA.
Make sure video PCA is
installed properly.
Make sure CPU module is
installed properly.
Try external monitor.
White display. Adjust display brightness.
Erratic display.
Bright or missing See quality statement on
pixels or lines. page 5-2.
Punctured display.
Vertical crack near
center of display.
Scratched display
glass.
Local area of dark
or light discoloration
visible when display
is on.
External display Check connections.
does not work.
Press Fn+F5 several times.
Try display on another
computer.
Check settings in BIOS
Setup.
Display difficult to Check display resolution
read or part of (default is 1024 × 768).
desktop not visible.
Use HP Desktop Zoom to
adjust size of desktop icons
and labels.
3-10 Troubleshooting and Diagnostics
Repair Center:
Likely Causes
Display cable
connection.
SDRAM modules.
Video PCA.
CPU module.
Display assembly.
Motherboard.
Display assembly.
Switchboard PCA.
Display cable
connection.
Video PCA.
Display assembly.
Motherboard.
Display cable
connection.
Display assembly.
Usually caused by
closing display with
pencil-sized object
on keyboard.
Caused by excessive
pressure applied to
area on screen.
External display.
Motherboard.
HP Omnibook XE3 (Technology Codes GE and GD)
Repair Center:
Comments
Set DIP switch on video PCA
to match label on display
(see page 2-20).
Check cable connection.
Replace SDRAM modules.
Replace CPU module.
Replace display assembly.
If external monitor displays
no image, replace
motherboard.
Check display cable
connection.
Check display cable
connection.
See quality statement on
page 5-2.
Declared to be caused by
customer abuse.
Declared to be caused by
customer abuse.
Declared to be caused by
customer abuse.
Declared to be caused by
customer abuse.