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 PCA
(page 2-13).
Keyboard (page 2-13).
CD/DVD (page 2-16).
Display (page 2-17).
Top case (page 2-20).Press the tabs on both sides of the panel and then lift
it from the bottom case.
PCA, I/RSee page 2-25.
PCA, left and right
antennas (wireless
models only)Keyboard 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).
Heatsink (page 2-27).
Floppy (page 2-22).
Motherboard (page 2-31)
Bottom case (page 2-35).Disconnect the front antenna PCA cables from the
mini-PCI card (page 2-6).
Be careful not to bend the metal tabs on the bottom
case when removing or replacing either of the two
antenna PCAs.
PCA, motherboardSee page 2-31.
PCA, switchboardSee page 2-13.
Socket, PCMCIAKeyboard cover
(page 2-10).
Keyboard (page 2-13).
CD/DVD (page 2-16).
Display (page 2-17).
Top case (page 2-20).
Heatsink (page 2-27).
Floppy (page 2-22).
Motherboard (page 2-31).1.  Remove the two screws attaching the socket to the
motherboard.
2.  Unplug the PCMCIA socket from the motherboard.
Speaker assemblySee page 2-12. 
						

							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 diagnostic program (page 3-17).
 ! Power-on self-test (page 3-18).
 ! Sycard PCCtest 450/460 PC card (page 3-24).
 ! Windows Management Instrumentation (page 3-25).
 ! BIOS Setup utility (page 3-25).
Support by Authorized Service Providers
In the U.S., support of notebook computers by Authorized Service Providers (ASPs) is a purchasable
option. Standard predefined models and standard special models do not
 include ASP support. The sales
force has the option of creating models with ASP support using the specials process.
The serial number label on the bottom of the notebook indicates the ASP support status for that model.
See the following table.
  Table 3-1. ASP Support Options
Serial Number LabelASP Support Status
“NoASP” No reimbursement to ASP for parts or labor. However the ASP is authorized to
repair the notebook, and reimbursement can be negotiated directly with the
customer.
“ASP” Parts and labor will be reimbursed to the ASP.
In other countries, ASP support is standard in most situations—but you should check the marking on
the serial number label to verify the ASP support status for that model. 
						

							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.
Check for customer abuse.
 
  Figure 3-1. Basic Troubleshooting Steps 
						

							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.
 ! Parts not original to the notebook.
 ! Damaged or missing keys on the keyboard.
Table 3-3 lists additional criteria for determining customer abuse to specific parts of the notebook.
  Important
 
Parts damaged by customer abuse are not covered by the warranty.
Troubleshooting the Problem
Record pertinent information about the notebook:
 • 
Model and serial number.
 • 
Operating system and version.
 • 
Software version (stored in hidden file c:\version.inf).
 • 
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, note the functions that do
 work properly.
 • 
Separate Problems. If there are multiple symptoms, separate them into distinct problems.
 • 
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 notebook’s components using automatic
and interactive tests, and is your primary troubleshooting tool. Other tools include the power-
on self-test, WMI/Toptools (if installed), the BIOS Setup utility, and the Sycard PCCtest.
Table 3-2 on page 3-5 shows how you can use these tools to isolate the cause of the
notebook’s problem.
 ! The troubleshooting suggestions on page 3-6 include general suggestions for repairing
notebooks that show specific failure symptoms. 
						

							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 notebook off, so that you can restart it
in a known state.
Verifying the Repair
Before returning the repaired notebook to the customer, verify the repair by running the following tests:
 • e-
Diagtools Basic Diagnostic Test. Run the basic test of the e-Diagtools diagnostic program
(page 3-17).
 
–and–
 • 
Function Tests. Run tests that check the repaired function, such as those in e-Diagtools
(page 3-17).
 
–and–
 • 
Failed Tests. Run any other tests that failed during troubleshooting. 
						

							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 Describes
AudioTests
SerialTests* Describes Configures
ParallelTests Describes Configures
LANTests Describes Configures
ModemConfigures
WirelessConfigures
InfraredDescribes Configures
PS/2 port
Tests†Configures
USBDescribes Configures
Port replicator
PCMCIATests Tests Describes
IEEE 1394Tests
AC adapterStatus
* Test might be available only on certain units.†Use an external keyboard to exercise the port. Run the external 101-key test. 
						

							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 table on page 1-15.
Startup
Does not boot on
AC or battery.Check power source.
Press and hold power button
to turn notebook off, then
press power button to turn
notebook on.
Unplug AC adapter, remove
the battery and any PC
cards, press reset button to
turn notebook off, then
reconnect power and try
again.
Do not use touch pad while
booting or resuming.
Remove all but one SDRAM
module and try again.
Reinsert any other SDRAM
module and try again.AC adapter.
SDRAM module.
CPU module.
Switchboard PCA.
Motherboard.
Display assembly.
Hard drive.Check AC adapter. Remove
all but one SDRAM module
and try again.
If power status light does not
turn on, reprogram BIOS,
replace top case, replace
motherboard.
If power status light turns on
but display remains off, try
external monitor. If monitor
shows successful boot,
replace display assembly. If
monitor shows activity but
BIOS does not complete,
replace display assembly. If
monitor is blank, replace
switchboard PCA, replace
motherboard.
If power status light and
display turn on, BIOS
completes, but OS does not
start from hard disk or floppy
drive, replace CPU module,
replace motherboard. If OS
starts from floppy drive,
reload hard drive, replace
hard drive.
Beeps once, spins
hard disk, repeats,
but does not boot.Make sure at least one
SDRAM module is installed.SDRAM module.
Does not boot on
battery, but boots
on AC.Make sure battery is properly
installed and fully charged.
Check battery level on
battery LEDs.
Check battery contacts. If
available, try another battery.Battery or contacts.
Motherboard.
Does not boot from
floppy drive.Make sure floppy disk is
bootable.
Use BIOS Setup to check
default boot order.Floppy disk or floppy
drive.
Motherboard.Make sure floppy drive is
installed and connected
correctly.
Does not boot from
CD in CD/DVD
drive.Make sure CD is bootable.
Use BIOS Setup to check
default boot order.
Restart notebook.CD/DVD drive.
Motherboard.Make sure CD/DVD is
installed and connected
correctly. 
						

							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 drive.If notebook boots from floppy
drive, check for corrupt files
on hard drive, use Recovery
CDs to reinstall factory
software onto hard drive,
replace hard drive.
Password forgotten. Verify proper ownership, then
follow removal procedure
with owner and record
appropriate data—see page
5-1.User must call Technical
Support and provide proof of
ownership. Password
removal is restricted to
certain sites. See page 5-1.
Power
No power. Make sure charged battery is
installed or AC adapter
connected.
Try another battery or AC
adapter if available.AC adapter.
Battery.
Motherboard.
Notebook has short
operating time
when on battery.Turn down display
brightness.
Check timeout settings in
Power in Control Panel.
Check power management
settings in BIOS Setup. Try
default settings.
Battery gauge might need
calibration. Run HP Battery
Optimizer from Start menu.
Certain applications can
cause excess CPU and
power usage. (User can get
Intel Power Monitor from
www.intel.com and monitor
CPU load.)
W hen playing DVD movies
on battery power, use Power
Options in Control Panel to
select Portable/Laptop power
scheme.
W hen using applications with
automatic save feature (such
as MS W ord), extend save
time or disable to reduce
hard disk access and power
usage.
PCMCIA card use can affect
battery life. Some PCMCIA
cards draw power even while
not in use.
Heavy modem use can affect
battery operating time.Battery.
Motherboard.Battery capacity often
decreases after a year or
more. 
						

							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
battery.Battery.
Battery does not
charge.Make sure AC adapter has
correct power rating.
Make sure AC adapter is
connected properly and
battery installed properly.
Check battery contacts. If
available, try another battery
and AC adapter.
Move notebook away from
any nearby heat source.
Unplug AC adapter and allow
battery to cool. Check for
blocked air vents.Battery or contacts.
AC adapter.
Motherboard.
Heatsink.Check battery and AC
adapter.
Check heatsink.
AC adapter does
not power
notebook.Try another AC adapter, if
available.AC adapter.
Motherboard.AC adapter cannot be
repaired, and must be
replaced.
Battery indicator is
inaccurate.Time Remaining is an
estimate based on
notebook’s power use at that
moment. It therefore
depends on current task, and
assumes power will be used
at that rate until battery runs
out. So if notebook is
currently using good deal of
power (such as when reading
CD or DVD), Time
Remaining likely shows less
time than actually remains.
Standby/resume
General problems. Close all applications before
entering (or allowing
notebook to enter) Standby
or Hibernation mode.
If problem appears after
installing new software
(including drivers), uninstall
that software. Contact
software vendor for additional
support. 
						

							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
computer is active.
If notebook is busy, it
normally finishes current
operation before suspending.
Does not
automatically enter
Hibernation mode
as expected.Make sure hibernate support
is enabled in Power in
Control Panel. Also, make
sure Hibernate timeouts
(Power Schemes tab) for AC
and battery power are not set
to Never.
Display
Dark display, no
light.Make sure notebook is
turned on and warmed up.
Check power supply.
Make sure SDRAM modules
are installed properly.
Adjust display brightness.
Press Fn+F5 several times.
Try external monitor.Display cable
connection.
SDRAM modules.
CPU module.
Display assembly.
Motherboard.Check cable connections.
Replace SDRAM modules.
Make sure CPU module is
installed properly, replace
CPU module.
Check display cable
connections, replace display
assembly.
If external monitor displays
no image, replace
motherboard.
W hite display. Adjust display brightness. Display assembly.
Switchboard PCA.
Erratic display. Display cable
connection.
Switchboard PCA.
Display assembly.
Motherboard.Check display cable
connection.
Bright or missing
pixels or lines.See quality statement on
page 5-2.Display cable
connection.
Display assembly.Check display cable
connection.
See quality statement on
page 5-2.
Punctured display. Declared to be caused by
customer abuse.
Vertical crack near
center of display.Usually caused by
closing display with
pencil-sized object on
keyboard.Declared to be caused by
customer abuse.
Scratched display
glass.Declared to be caused by
customer abuse.