Compaq hp pavilion ze4100 notebook pc User Manual

2-40 Removal and Replacement Service Manual
ComponentRemoval ProcedureAdditional Steps
Guide, HDDKeyboard cover
(page 2-10).
Speaker (page 2-12).
Switchboard PCA
(page 2-13).
Keyboard (page 2-13).
CD/DVD (page 2-16).
Display (page 2-17).
Top case (page 2-20).W hen replacing the HDD guide, make sure you only
replace the two right screws. Do not replace the two
left screws.
Heatsink (with fan)See page 2-27.
KeyboardSee page 2-13.
Panel, wirelessKeyboard cover
(page 2-10).
Speaker (page 2-12).
Switchboard...

Service Manual Troubleshooting and Diagnostics 3-1
3 
Troubleshooting and Diagnostics
This chapter includes troubleshooting and diagnostic information for testing the functionality of the
notebook, and for identifying faulty components:
 • 
ASP support information
 • 
Troubleshooting information
 ! Checking for customer abuse (page 3-3).
 ! Troubleshooting the problem (page 3-3).
 ! Verifying the repair (page 3-4).
 ! Suggestions for troubleshooting (page 3-5).
 • 
Diagnostic tools
 ! e-Diagtools...

3-2 Troubleshooting and Diagnostics Service Manual
Troubleshooting
The suggestions in this section can help isolate and repair the cause of a problem. To ensure quality
repair, follow the basic troubleshooting steps shown 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 the
functionality of the complete unit....

Service Manual Troubleshooting and Diagnostics 3-3
Checking for Customer Abuse
Some notebooks might 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 notebook shows any of the following, customer abuse is declared:
 ! Missing parts.
 ! Broken plastic parts....

3-4 Troubleshooting and Diagnostics Service Manual
Swapping modules that might be defective with others known to be good is generally an ideal way to
find the module responsible for the problem. A failure symptom is rarely caused by more than one
module, so you will not usually need to replace more than one to correct a particular failure.
After you replace a module, the notebook will normally be in a confused state and lock up when you
apply power. If this happens, press the reset button: this turns the...

Service Manual Troubleshooting and Diagnostics 3-5
Suggestions for Troubleshooting
  Table 3-2. Scope of Diagnostic Tools
Functione-DiagtoolsPower-On
Self-Test
Sycard
PCCtest 450
WMI/
Toptools
(if installed)
BIOS Setup
BootupTests Describes Configures
ProcessorTests Describes
MemoryTests Tests Describes Describes
FanTests
BatteriesTests (CMOS
battery only)Describes
DisplayTests Describes Configures
Hard diskTests Tests Describes Configures
Floppy driveTests* Tests Describes Configures
KeyboardTests Tests...

3-6 Troubleshooting and Diagnostics Service Manual
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 3-3. Troubleshooting Suggestions
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
To help determine likely causes of a problem, determine which replaceable modules are involved in the system
function and what roles they play: see the figure on page 1-14 and the...

Service Manual Troubleshooting and Diagnostics 3-7
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Sluggish startup or
shutdown.Use Tools tab in disk’s
Properties sheet to check
hard disk. Use Disk
Defragmenter to optimize
hard disk.
Delete temporary and
unneeded files.Hard drive.
Error message
such as “Invalid
system disk” or
“Auto IDE error”.Check for disk in floppy drive.
Check boot order in BIOS
Setup.
Remove and reinstall hard
drive.Hard drive contacts.
Hard...

3-8 Troubleshooting and Diagnostics Service Manual
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Turns off
immediately after
turning on.Battery may be extremely
low. Plug in AC adapter or
insert charged batteryBattery.
Does not run on
battery; empty
battery indication.Check battery and contacts.
Try another battery if
available.Battery or contacts.
Motherboard.
Beeps repeatedly. Notebook beeps repeatedly
when battery is low. Connect
AC adapter or replace...

Service Manual Troubleshooting and Diagnostics 3-9
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Notebook resumes
slowly from Standby
mode.Notebook can take a minute
or longer to resume if
network card is installed.
Blinking cursor appears while
system is loading and
checking hardware and
network connections. W hen
hardware is reinitialized,
W indows desktop appears.
Does not suspend
to Standby mode as
expected.Notebook won’t suspend if
connection to another...