HP Omnibook Xe3 Service Manual

HP OmniBook XE3 Troubleshooting and Diagnostics 3-1
This chapter includes troubleshooting and diagnostic information for testing the functionality of the
notebook, and for identifying faulty modules:
 · Troubleshooting information
  Troubleshooting the problem (page 3-3).
  Verifying the repair (page 3-3).
  Suggestions for troubleshooting (page 3-4).
 · Diagnostic tools
  DiagTools diagnostic program (page 3-17).
  Power-on self-test (page 3-24).
  Sycard PCCtest 450 PC Card (page 3-27).
  Desktop...

3-2 Troubleshooting and Diagnostics HP OmniBook XE3
Troubleshooting
The suggestions in this section can help isolate and repair the cause of a problem. To ensure quality
repair, HP recommends that you follow the basic troubleshooting steps shown in the illustration
below.
 
 Figure 3-1. Basic Troubleshooting Steps
Check the customers description
of the problem and any supporting
information.
Try to duplicate the customers
problem.
Troubleshoot the problem using
  - Diagnostic tools.
  - Troubleshooting...

HP OmniBook XE3 Troubleshooting and Diagnostics 3-3
Troubleshooting the Problem
Record pertinent information about the notebook:
 · Model and serial number.
 · Operating system and version.
 · BIOS version.
 · Accessories and peripherals used.
Analyze the problem:
 · 
Observe Symptoms. Using the customer’s information, try to duplicate the problem. Determine
how the problem differs from proper behavior. Also, take note of the functions that do work
properly.
 · 
Separate Problems. If there is more than...

3-4 Troubleshooting and Diagnostics HP OmniBook XE3
Suggestions for Troubleshooting
  Table 3-1. Scope of Diagnostic Tools
FunctionDiagToolsPower-On
Self-Test
Sycard
PCCtest 450
DMI/TopTools
(if installed)
BIOS Setup
BootupTests Describes Configures
ProcessorTests
(System menu)Tests Describes
MemoryTests
(Memory menu)Tests Describes Describes
BatteryDescribes
DisplayTests
(Video menu)Describes
Hard diskTests
(IDE menu)Tests Describes Configures
Floppy driveTests
(FDD menu)Tests Describes Describes...

HP OmniBook XE3 Troubleshooting and Diagnostics 3-5
If you cannot isolate the cause of a problem using the above diagnostic tools, use the suggestions in
the following table to help find the problem.
 Table 3-2. Troubleshooting Suggestions
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
To help determine likely causes, check to see what replaceable modules are involved in the system function and
what roles they play. See the figure on page 1-18 and the table on page...

3-6 Troubleshooting and Diagnostics HP OmniBook XE3
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Does not boot from
CD-ROM or DVD in
CD-ROM/DVD
drive.Make sure CD-ROM or DVD
is bootable.
Use BIOS Setup to check
boot order and make sure
CD-ROM/DVD Drive is
enabled as first boot device.
Restart notebook.
Test DVD drive with
DiagTools diagnostics.CD-ROM/DVD drive
module.
Motherboard.
Error message such
as “Invalid system
disk” or “Auto IDE
error”.Check for disk in...

HP OmniBook XE3 Troubleshooting and Diagnostics 3-7
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Battery has short
operating time.Turn down display
brightness.
Check Intel SpeedStep
Technology settings in BIOS
Setup Power menu. Try
default setting.
Check settings in Power
Management in Control
Panel.
Certain applications can
cause excess CPU and
power usage. (User can get
Intel Power Monitor from
www.intel.com and monitor
CPU load.)
When using applications with...

3-8 Troubleshooting and Diagnostics HP OmniBook XE3
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
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...

HP OmniBook XE3 Troubleshooting and Diagnostics 3-9
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Floppy drive
General problems. Make sure floppy drive is
installed correctly.
Check settings in BIOS
Setup.Floppy drive module
or contacts.
Motherboard.
Drive does not write
to 1.44-MB floppy
disks.Make sure floppy disk is not
write-protected.Floppy drive module.
Drive reads from
but does not write
to 720- or 360-KB
floppy disks.Make sure floppy disks are
not...

3-10 Troubleshooting and Diagnostics HP OmniBook XE3
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Touch pad
General problems. Slide and hold power button
four seconds to reset
notebook.
Avoid touching touch pad
while booting or resuming.
Check settings in Control
Panel. Make sure touch pad
is enabled in Mouse
Properties.
Make sure touch pad is
enabled in BIOS Setup.
Check pointing stick settings
in Control Panel.Top case.
Motherboard.
Click button does
not work.Top...