HP Omnibook 500 Service Manual

HP Omnibook 500 Removal and Replacement 2-35
ComponentRemoval ProcedureAdditional Steps
Heatsink/fanSee page 2-21.
Panel, audio/PCMCIAHard disk drive (page 2-6).
Power button panel
(page 2-9).
Keyboard (page 2-10).
Switchboard PCA
(page 2-15).
Display (page 2-18).
Top case (page 2-23).Remove all three screws from the panel. Flip out the
PC Card eject button, so that it stands out from the
side of the unit, then remove the panel.
Reassembly Notes:
 Make sure the audio-out jack,
external microphone jack,...

HP Omnibook 500 Troubleshooting and Diagnostics 3-1
3 
Troubleshooting and Diagnostics
This chapter includes troubleshooting and diagnostic information for testing the functionality of the
Omnibook and identifying faulty components.
 
• Troubleshooting information
 
… Checking for customer abuse (page 3-3).
 
… Troubleshooting the problem (page 3-2).
 
… Verifying the repair (page 3-4).
 
… Suggestions for troubleshooting (page 3-5).
 
• Diagnostic tools
 
… Omnibook e-DiagTools diagnostic program (page...

3-2 Troubleshooting and Diagnostics HP Omnibook 500
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.
 
Check the customers description
of the problem and any supporting
information.
Try to duplicate the customers
problem.
Troubleshoot the problem using:
  - Diagnostic tools.
  - Troubleshooting suggestions.
Verify the repair by testing...

HP Omnibook 500 Troubleshooting and Diagnostics 3-3
Checking for Customer Abuse
Some units may appear to have been damaged by customer abuse. Use these guidelines to help
determine if this is the case:
 
• If the shipping box is seriously damaged, customer abuse 
cannot be declared.
 
• If the damage 
could have a cause other than customer abuse, customer abuse 
cannot be declared.
 
• If the unit shows any of the following, customer abuse is declared:
 
… Missing parts.
 
… Broken plastic parts.
 
…...

3-4 Troubleshooting and Diagnostics HP Omnibook 500
 
• Consider Causes. Keep in mind possible causes for each problem. Use the diagnostic tools and
troubleshooting suggestions to help find possible causes.
 
… The e-DiagTools diagnostic program tests most of the computer’s components using
automatic and interactive tests, and will be your primary troubleshooting tool. Other tools
include the power-on self-test, DMI/Toptools (if installed), the BIOS Setup utility, and the
Sycard PCCtest. Table 3-1 on...

HP Omnibook 500 Troubleshooting and Diagnostics 3-5
Suggestions for Troubleshooting
  Table 3-1. Scope of Diagnostic Tools
Functione-DiagToolsPower-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
BatteriesTests (CMOS
battery only)Describes
(W in 98 only)
DisplayTests
(Video menu)Describes
Hard diskTests
(IDE menu)Tests Describes Configures
Floppy...

3-6 Troubleshooting and Diagnostics HP Omnibook 500
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, find out which replaceable components are involved in the system involved,
and what roles they play. See Figure 1-11 on page 1-19 and Table 1-9 on page...

HP Omnibook 500 Troubleshooting and Diagnostics 3-7
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Does not boot from
a floppy drive.Make sure the floppy disk is
bootable.
Make sure the floppy drive is
installed or connected
correctly.
If the floppy drive is
connected to a USB port,
make sure Legacy USB
Support is enabled in BIOS
Setup.
Use BIOS Setup to check the
boot order and to make sure
that floppy boot is enabled.
If the drive is installed in the
expansion...

3-8 Troubleshooting and Diagnostics HP Omnibook 500
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Power/Battery
Short battery
operating time.Turn down the display
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...