HP Pavilion dv4000 Notebook PC
Compaq Presario V4000 Notebook PC
Document Part Number: 377367-002
August 2005
This guide is a troubleshooting reference used for maintaining
and servicing the notebook. It provides comprehensive
information on identifying notebook features, components, and
spare parts; troubleshooting notebook problems; and performing
notebook disassembly procedures.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation. Intel, Pentium, and Celeron are trademarks or registered
trademarks of Intel Corporation or its subsidiaries in the United States and
other countries. Bluetooth is a trademark owned by its proprietor and used
by Hewlett-Packard Company under license. SD Logo is a trademark of its
proprietor.
The information contained herein is subject to change without notice. The
only warranties for HP products and services are set forth in the express
warranty statements accompanying such products and services. Nothing
herein should be construed as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or omissions contained herein.
Maintenance and Service Guide
HP Pavilion dv4000 Notebook PC
Compaq Presario V4000 Notebook PC
Second Edition August 2005
First Edition March 2005
Document Part Number: 377367-002
The HP Pavilion dv4000 Notebook PC 1 and Compaq
Presario V4000 Notebook PC 2 offer advanced modularity,
Intel® Pentium® M and Celeron® M processors, and extensive
multimedia support.
HP Pavilion dv4000 Notebook PC and Compaq Presario V4000
Notebook PC
Maintenance and Service Guide1–1
Product Description
1.1Features
■Intel Pentium M 2.00-, 1.73-, 1.60-, or 1.50-GHz processors,
or Intel Celeron M 1.50-, 1.40-, or 1.30-GHz processors,
varying by notebook model
■15.4-inch, WXGA, TFT (1280 × 800) with BrightView
display, or 15.4-inch, WXGA, TFT (1280 × 800) display,
varying by notebook model
■100-, 80-, 60-, or 40-GB high-capacity hard drive, varying by
notebook model
■256-MB DDR synchronous DRAM (SDRAM) at 333 MHz,
expandable to 2.0 GB
■Microsoft® Windows® XP Home Edition or Windows XP
Professional, varying by notebook model
■Full-size Windows keyboard with embedded numeric keypad
■TouchPad pointing device, including dedicated horizontal
(Compaq Presario V4000 models) and vertical scroll regions
■Integrated 10Base-T/100Base-TX Ethernet local area
network (LAN) network interface card (NIC) with RJ-45 jack
■Integrated high-speed 56K modem with RJ-11 jack
■Integrated wireless support for Mini PCI IEEE 802.11b/g
WLAN device (select models only)
■Support for one Type I or Type II PC Card slot, with support
for both 32-bit (CardBus) and 16-bit PC Cards
■Support for ExpressCard slot
■External 65-watt AC adapter with 3-wire power cord
■12- or 6-cell Li-Ion battery pack, varying by notebook model
■Stereo speakers
■Volume up, volume mute, and volume down buttons
■QuickPlay buttons (select models only)
■Support for the following optical drives:
❏ DVD±RW and CD-RW Combo Drive
❏ DVD/CD-RW Combo Drive
1–2Maintenance and Service Guide
✎
Product Description
Numerous references are made throughout this Maintenance and
Service Guide to “full-featured” and “defeatured” models.
A model is considered to be full-featured if it has 4 Universal
Serial Bus ports and the following components:
A notebook model is considered to be defeatured if it has only
2 Universal Serial Bus ports and none of the components listed
above.
■Connectors:
❏ Audio-in (microphone)
❏ Audio-out (headphone)
❏ Digital Media Slot (full-featured models only)
❏ Expansion port (full-featured models only)
❏ ExpressCard slot (full-featured models only)
❏ External monitor
❏ IEEE 1394 (full-featured models only)
❏ Infrared (full-featured models only)
❏ PC Card
❏ Power
❏ Primary battery
❏ RJ-11 (modem)
❏ RJ-45 (network)
❏ S-Video-out
❏ Serial port (full-featured models only)
❏ Smart card
❏ Universal Serial Bus (USB) v. 2.0 (4 ports on full-featured
models, 2 ports on defeatured models)
Maintenance and Service Guide1–3
Product Description
1.2Resetting the Notebook
If the notebook you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:
1. Enter an incorrect password and press
2. Repeat step 1 2 times.
After the third entry of the incorrect password, the notebook
responds with a “System Disabled” message and provides an
override password.
3. Access MS/DOS by clicking Start > All Programs >
Accessories > Command Prompt.
4. Enter “unlock6 xxxxx 0,” where “xxxxx” is the password
generated by the notebook in step 2.
The notebook responds with another system-generated
password. This password can be used to reset the notebook
and clear all CMOS settings.
1.3Power Management
The notebook comes with power management features that
extend battery operating time and conserve power. The
notebook supports the following power management features:
enter.
■Standby
■Hibernation
■Setting customization by the user
■Hotkeys for setting the level of performance
■Battery calibration
■Lid switch standby/resume
■Power/standby button
■Advanced Configuration and Power Management (ACPM)
compliance
1–4Maintenance and Service Guide
1.4External Components
The external components on the front of the notebook are shown
below and described in Table 1-1. Depending on your notebook
model, component locations may vary.
Front Components
Product Description
Table 1 -1
Front Components
ItemComponentFunction
1Power/standby light■ On: Notebook is turned on.
■ Blinking: Notebook is in standby.
■ Off: Notebook is off or in hibernation.
2Battery light■ On: The battery pack is charging.
■ Blinking: The battery pack has reached a
low-battery condition.
■ Off: The battery pack is fully charged or
not inserted.
3Integrated Drive
Electronics (IDE) drive
light
4Consumer infrared
(IR) lens (select
models only)
On or blinking: The internal hard drive or an
optical drive is being accessed.
Links the notebook to an optional remote
control.
5SpeakersProduce stereo sound.
6Display release buttonOpens the notebook.
Maintenance and Service Guide1–5
Product Description
The external components on the right side of the HP Pavilion
dv4000 are shown below and described in Table 1-2. Depending
on your notebook model, component locations may vary.
Right-Side Components, HP Pavilion dv4000
1–6Maintenance and Service Guide
Product Description
Table 1 -2
Right-Side Components, HP Pavilion dv4000
ItemComponentFunction
1Optical driveSupports an optical disc, such as a CD
or DVD.
2Audio-out
(headphone) jack
(full-featured
models only)
3Audio-in (microphone)
jack (full-featured
models only)
4USB ports
(full-featured
models only)
Number of USB ports vary by model.
✎
5Monitor port
(full-featured
models only)
6S-Video-out jack
(full-featured
models only)
7Security cable slotAttaches an optional security cable to the
Connects an optional headphone or
powered stereo speakers. Also connects
the audio function of an audio/video device,
such as a television or VCR.
Connects an optional stereo microphone.
Connect optional USB devices.
Connects an optional VGA monitor or
projector.
Connects the video function of an optional
S-Video device, such as a television, VCR,
or video capture card.
notebook.
The purpose of security solutions is to act as a deterrent. These
✎
solutions do not prevent the product from being mishandled or
stolen.
Maintenance and Service Guide1–7
Product Description
The external components on the right side of the
Compaq Presario V4000 are shown below and described
in Table 1-3. Depending on your notebook model, component
locations may vary.
Right-Side Components, Compaq Presario V4000
1–8Maintenance and Service Guide
Product Description
Table 1 -3
Right-Side Components, Compaq Presario V4000
ItemComponentFunction
1Optical driveSupports an optical disc, such as a CD
or DVD.
2Audio-out (headphone)
jack (full-featured
models only)
3Audio-in (microphone)
jack (full-featured
models only)
4USB ports
(full-featured
models only)
Number of USB ports vary by model.
✎
5Monitor port
(full-featured
models only)
6S-Video-out jack
(full-featured
models only)
7Security cable slotAttaches an optional security cable to the
Connects an optional headphone or
powered stereo speakers. Also connects
the audio function of an audio/video device,
such as a television or VCR.
Connects an optional stereo microphone.
Connect optional USB devices.
Connects an optional VGA monitor or
projector.
Connects the video function of an optional
S-Video device, such as a television, VCR,
or video capture card.
notebook.
The purpose of security solutions is to act as a deterrent. These
✎
solutions do not prevent the product from being mishandled or
stolen.
Maintenance and Service Guide1–9
Product Description
The external components on the left side of the HP Pavilion
dv4000 are shown below and described in Table 1-4. Depending
on your notebook model, component locations may vary.
Left-Side Components, HP Pavilion dv4000
Table 1 -4
Left-Side Components, HP Pavilion dv4000
ItemComponentFunction
1Power connectorConnects the AC adapter cable.
2RJ-11 (modem) jackConnects a modem cable (not included).
3RJ-45 (network) jackConnects a network cable (not included).
4Expansion port 2
(full-featured
models only)
The notebook has only one expansion port. The term
✎
5USB portsConnect optional USB devices.
describes the type of expansion port.
port 2
Connects the notebook to an optional
docking device.
expansion
1–10Maintenance and Service Guide
Table 1 -4
Product Description
Left-Side Components, HP Pavilion dv4000
ItemComponentFunction
61394 port (4-pin;
full-featured
models only)
7Digital Media Slot
(full-featured
models only)
8Digital Media Slot
light (full-featured
models only)
9ExpressCard slot
(full-featured
models only)
10PC Card slotSupports an optional Type I or Type II 32-bit
Connects an optional 1394a device such as
a scanner, a digital camera, or a digital
camcorder.
Supports the following optional digital
cards: SD (Secure Digital) Memory Card,
SD I/O Card, Memory Stick, Memory Stick
Pro, MultiMediaCard, xD-Picture Card, and
SmartMedia.
On: An optional digital card is being
accessed.
Supports an optional ExpressCard.
(CardBus) or 16-bit PC Card.
(Continued)
11PC Card eject buttonEjects PC Cards from the PC Card slot.
12Monitor port
(full-featured
models only)
13S-Video-out jack
(full-featured
models only)
14Audio-in (microphone)
jack (full-featured
models only)
15Audio-out (headphone)
jack (defeatured
models only)
Maintenance and Service Guide1–11
Connects an optional VGA monitor or
projector.
Connects the video function of an optional
S-Video device, such as a television, VCR,
or video capture card.
Connects an optional stereo microphone.
Connects an optional headphone or
powered stereo speakers. Also connects
the audio function of an audio/video device,
such as a television or VCR.
Product Description
The external components on the left side of the Compaq Presario
V4000 are shown below and described in Table 1-5. Depending
on your notebook model, component locations may vary.
Left-Side Components, Compaq Presario V4000
Table 1 -5
Left-Side Components, Compaq Presario V4000
ItemComponentFunction
1Power connectorConnects the AC adapter cable.
2RJ-11 (modem) jackConnects a modem cable (not included).
3RJ-45 (network) jackConnects a network cable (not included).
4Expansion port 2
(full-featured
models only)
The notebook has only one expansion port. The term
✎
5USB portsConnect optional USB devices.
describes the type of expansion port.
port 2
Connects the notebook to an optional
docking device.
expansion
Number of USB ports vary by model.
✎
1–12Maintenance and Service Guide
Table 1 -5
Product Description
Left-Side Components, Compaq Presario V4000
ItemComponentFunction
61394 port (4-pin;
full-featured
models only)
7Memory Reader
(full-featured
models only)
8Memory Reader
light (full-featured
models only)
9ExpressCard slot
(full-featured
models only)
10PC Card slotSupports an optional Type I or Type II 32-bit
Connects an optional 1394a device such as
a scanner, a digital camera, or a digital
camcorder.
Supports the following optional digital
cards: SD (Secure Digital) Memory Card,
SD I/O Card, Memory Stick, Memory Stick
Pro, MultiMediaCard, xD-Picture Card, and
SmartMedia.
On: An optional digital card is being
accessed.
Supports an optional ExpressCard.
(CardBus) or 16-bit PC Card.
(Continued)
11PC Card eject buttonEjects PC Cards from the PC Card slot.
12Monitor port
(full-featured
models only)
13S-Video-out jack
(defeatured
models only)
14Audio-in (microphone)
jack (defeatured
models only)
15Audio-out (headphone)
jack (defeatured
models only)
Maintenance and Service Guide1–13
Connects an optional VGA monitor or
projector.
Connects the video function of an optional
S-Video device, such as a television, VCR,
or video capture card.
Connects an optional stereo microphone.
Connects an optional headphone or
powered stereo speakers. Also connects
the audio function of an audio/video device,
such as a television or VCR.
Product Description
The standard keyboard components of the notebook are shown
below and described in Table 1-6.
Standard Keyboard Components
1–14Maintenance and Service Guide
Table 1-6
Standard Keyboard Components
ItemComponentFunction
Product Description
1fn
2caps lock keyEnables caps lock and turns on the caps
3f1 to f12 keys (12)Perform system and application tasks.
4num lock keyEnables numeric lock, turns on the
5Embedded numeric
6Arrow keysMove the cursor around the screen.
7Windows
8Windows logo keyDisplays the Microsoft Windows
keyCombines with other keys to perform
system tasks as hotkeys. For example,
pressing fn+f7 decreases screen
brightness.
lock light.
When combined with fn, function keys
perform additional tasks as hotkeys.
embedded numeric keypad, and turns
on the num lock light.
Can be used like the keys on an external
keypad keys (15)
applications key
numeric keypad.
Displays a shortcut menu for items
beneath the pointer.
Start menu.
Maintenance and Service Guide1–15
Product Description
The top components on HP Pavilion dv4000 models are shown
below and described in Table 1-7.
Top Components, HP Pavilion dv4000 Models
Table 1-7
Top Components, HP Pavilion dv4000
ItemComponentFunction
1Power/standby light■ On: Notebook is turned on.
■ Blinking: Notebook is in standby.
■ Off: Notebook is off or in hibernation.
2Power/standby buttonWhen the notebook is
■ Off, press to start the notebook.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume from
standby.
■ In hibernation, briefly press to restore
from hibernation.
If the system has stopped responding and Windows
✎
shutdown procedures cannot be used, press and hold for at
least 4 seconds to turn off the notebook.
1–16Maintenance and Service Guide
Table 1-7
Product Description
Top Components, HP Pavilion dv4000
ItemComponentFunction
3Quick Launch buttons
(select models only)
4Volume mute buttonMutes or restores volume.
5Wireless light
(select models only)
To establish a wireless connection, a wireless network must
✎
already be set up.
6Wireless button
(select models only)
To establish a wireless connection, a wireless network must
✎
already be set up.
7Volume down buttonDecreases system volume.
8Volume up buttonIncreases system volume.
9Display switchInitiates standby when the notebook is
Launch default multimedia, digital imaging,
or music applications (vary by model).
On: One or more internal wireless devices
have been turned on.
Turns the wireless functionality on or off,
but does not create a wireless connection.
closed.
(Continued)
Maintenance and Service Guide1–17
Product Description
The top components on Compaq Presario V4000 models are
shown below and described in Table 1-8.
Top Components, Compaq Presario V4000 Models
1–18Maintenance and Service Guide
Table 1-8
Top Components, Compaq Presario V4000 Models
ItemComponentFunction
Product Description
1Wireless button
(select models only)
To establish a wireless connection, a wireless network must
✎
already be set up.
2Power/standby buttonWhen the notebook is
If the system has stopped responding and Windows
✎
shutdown procedures cannot be used, press and hold for at
least 4 seconds to turn off the notebook.
3Volume down buttonDecreases system volume.
4Volume mute button
Volume mute light
Turns the wireless functionality on or off,
but does not create a wireless connection.
■ Off, press to start the notebook.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume from
standby.
■ In hibernation, briefly press to restore
from hibernation.
Mutes or restores volume.
On: Volume is muted.
5Volume up buttonIncreases system volume.
6Display switchInitiates standby when the notebook is
closed.
Maintenance and Service Guide1–19
Product Description
The HP Pavilion dv4000 notebook TouchPad components are
shown below and described in Table 1-9.
TouchPad Components, HP Pavilion dv4000
Table 1-9
TouchPad Components, HP Pavilion dv4000
ItemComponentFunction
1TouchPadMoves the pointer.
2Left and right TouchPad
buttons
3Display release buttonOpens the notebook.
4TouchPad vertical
scroll zone
Function like the left and right buttons on
an external mouse.
Scrolls up or down.
1–20Maintenance and Service Guide
Product Description
The Compaq Presario V4000 notebook TouchPad components
are shown below and described in Table 1-10.
TouchPad Components, Compaq Presario V4000
Table 1-10
TouchPad Components, Compaq Presario V4000
ItemComponentFunction
1TouchPadMoves the pointer.
2TouchPad horizontal
scroll zone
3Left and right TouchPad
buttons
4TouchPad vertical
scroll zone
Scrolls left or right.
Function like the left and right buttons on
an external mouse.
Scrolls up or down.
Maintenance and Service Guide1–21
Product Description
The external components on the bottom of the notebook are
shown below and described in Table 1-11.
Bottom Components
Table 1-11
Bottom Components
ItemComponentFunction
1Battery bayHolds a battery pack.
2Vents (4)Provide airflow to cool internal
components.
To prevent overheating, do not obstruct vents. Do not allow a
Ä
hard surface, such as a printer, or a soft surface, such as
pillows or thick rugs or clothing, to block airflow.
3Hard drive bayHolds the internal hard drive.
1–22Maintenance and Service Guide
Table 1-11
Product Description
Bottom Components
ItemComponentFunction
4Optical driveSupports an optical disc, such as a CD
or DVD.
5Labels areaContains the serial number and other
information labels.
6Battery pack release latchReleases a battery pack from the
battery bay.
7Memory module coverContains 2 memory module slots that
support replaceable memory modules.
The number of preinstalled memory
modules varies by notebook model.
Mini PCI compartment
cover
To prevent an unresponsive system and the display of a
Ä
warning message, install only a Mini PCI device authorized for
use in your notebook by the governmental agency that
regulates wireless devices in your country. If you install an
unauthorized device and then receive a warning message,
remove the device to restore notebook functionality. Then
contact Customer Care.
Holds an optional wireless LAN device
(select models only).
(Continued)
8Thermal coverProvides access to the heat sink and
Maintenance and Service Guide1–23
processor.
Product Description
1.5Design Overview
This section presents a design overview of key parts and features
of the notebook. Refer to Chapter 3, “Illustrated Parts Catalog,”
to identify replacement parts, and Chapter 5, “Removal and
Replacement Procedures,” for disassembly steps.
The system board provides the following device connections:
■Audio
■Display
■Hard drive
■Intel Pentium M and Celeron M processors
■Keyboard
■Memory module
Ä
■Mini PCI communications devices
■PC Card
■Tou ch Pad
CAUTION: To properly ventilate the notebook, allow at least a 7.6-cm
(3-inch) clearance on the left and right sides of the notebook.
The notebook uses an electric fan for ventilation. The fan is
controlled by a temperature sensor and is designed to be turned
on automatically when high temperature conditions exist. These
conditions are affected by high external temperatures, system
power consumption, power management/battery conservation
configurations, battery fast charging, and software applications.
Exhaust air is displaced through the ventilation grill located on
the left side of the notebook.
1–24Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by HP should repair
Å
2.1Computer Setup
this equipment. All troubleshooting and repair procedures are detailed
to allow only subassembly-/module-level repair. Because of the
complexity of the individual boards and subassemblies, do not attempt
to make repairs at the component level or modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any
indication of component replacement or printed wiring board
modification may void any warranty or exchange allowances.
2
✎
Computer Setup is a preinstalled, ROM-based utility that can be
used even when the operating system is not working or will not
load. If the operating system is working, the notebook restarts the
operating system after you exit Computer Setup.
Pointing devices are not supported in Computer Setup; you
must use the keyboard to navigate and make selections.
The menu tables later in this chapter provide an overview of
Computer Setup options.
Maintenance and Service Guide2–1
Troubleshooting
Accessing Computer Setup
The information and settings in Computer Setup are accessed
from the File, Security, To ol s, and Advanced menus.
1. Open Computer Setup by turning on or restarting the
notebook. Press
displayed in the lower-left corner of the screen.
❏ To change the language, press f2.
❏ To view navigation information, press f1.
❏ To return to the Computer Setup menu, press esc.
2. Select the File, Security, Tools, or Advanced menu.
3. To exit Computer Setup, choose one of the following:
❏ To exit without saving any changes, use the arrow keys to
select File > Ignore changes and exit, and then follow
the instructions on the screen.
f10 while the F10 = Based Setup message is
❏ To exit and save all the settings you have entered, use the
arrow keys to select File > Save changes and exit, and
then follow the instructions on the screen.
Your preferences are set when you exit Computer Setup and take
effect when the notebook restarts.
Computer Setup Defaults
To return all settings in Computer Setup to the values that were
set at the factory:
1. Open Computer Setup by turning on or restarting the
notebook. Press
displayed in the lower-left corner of the screen.
❏ To change the language, press f2.
❏ To view navigation information, press f1.
2. Use the arrow keys to select File > Restore defaults.
f10 while the F10 = Based Setup message is
3. Select the Restore Defaults check box.
2–2Maintenance and Service Guide
4. To confirm the restoration, press f10.
5. Select File > Save changes and exit, and then follow the
instructions on the screen.
When the computer restarts, the factory settings are restored, and
any identification information you have entered is saved.
Selecting from the File Menu
Table 2-1
File Menu
SelectTo Do This
Troubleshooting
System Information
Save to floppySave system configuration settings to a diskette.
Restore to floppyRestore system configuration settings from a
Restore defaultsReplace configuration settings in Computer Setup
Ignore changes and exitCancel changes entered during the current
Save changes and exitSave changes entered during the current session.
■ View identification information about the
notebook and any battery packs in the system.
■ View specification information about the
processor, memory and cache size, video
revision, keyboard controller version, and
system ROM.
diskette.
with factory default settings. (Identification
information is retained.)
session. Then exit and restart the notebook.
Then exit and restart the notebook. The changes
you save are in effect when the notebook restarts.
Maintenance and Service Guide2–3
Troubleshooting
Selecting from the Security Menu
Table 2-2
Security Menu
SelectTo Do This
Administrator passwordEnter, change, or delete an HP Administrator
password.
Power-on passwordEnter, change, or delete a power-on password.
Password options
DriveLock passwordsEnable/disable DriveLock; change a DriveLock
Smart Card SecurityEnable/disable power-on support for smart cards.
Embedded Security
■ Enable/Disable stringent security.
■ Enable/Disable required password on restart.
user or master password.
DriveLock Settings are accessible only
✎
when you enter Computer Setup by turning
on (not restarting) the notebook.
This feature is supported by select smart
✎
card readers only.
■ Enable/Disable the embedded security chip.
■ Restore embedded security chip to factory
settings.
■ Enable/Disable power-on authentication
support.
■ Enable/Disable automatic DriveLock.
■ Reset power-on authentication credential
Device securityEnable/Disable devices in the system.
System IDsEnter user-defined identification values.
2–4Maintenance and Service Guide
Embedded Security settings are accessible
✎
only if the notebook is equipped with an
embedded security chip.
Enable NIC for inclusion in MultiBoot.
Troubleshooting
Selecting from the Tools Menu
Table 2-3
Tools Menu
SelectTo Do This
HDD Self Test optionsRun a quick or comprehensive self-test on any
hard drive in the system.
Battery InformationView information about any battery packs in the
notebook.
Memory Check
■ Run a self-test on memory modules in the
notebook.
■ View information about memory modules
installed in the notebook.
Maintenance and Service Guide2–5
Troubleshooting
Selecting from the Advanced Menu
Table 2-4
Advanced Menu
SelectTo Do This
Language (or press f2)Change the Computer Setup language.
Boot options
Device options
■ Enable/Disable MultiBoot, which sets a startup
sequence that can include most bootable
devices and media in the system.
■ Set the boot order.
■ Swap the functions of the fn key and
left ctrl key.
■ Enable/Disable multiple pointing devices at
startup. (To set the notebook to support only a
single, usually nonstandard, pointing device at
startup, select Disable.)
■ Enable/Disable USB legacy support for a USB
keyboard, mouse, and hub. When USB legacy
support is enabled
❐A USB keyboard, mouse, and hub work
even when a Windows operating system
is not loaded.
❐The notebook starts from a bootable hard
drive, diskette drive diskette, or CD,
CD-RW, or DVD inserted into a drive
connected by a USB connector to the
notebook or to an optional docking
device.
■ Select a parallel port mode: EPP (Enhanced
Parallel Port), standard, bidirectional, or ECP
(Enhanced Capabilities Port).
2–6Maintenance and Service Guide
■ Enable/Disable all settings in the SpeedStep
window. (When Disable is selected, the
notebook runs in Battery Optimized mode.)
The following sections include some of the considerations
that you should keep in mind during disassembly and assembly
procedures.
As you remove each subassembly from the notebook, place
✎
Plastic Parts
the subassembly (and all accompanying screws) away from
the work area to prevent damage.
Using excessive force during disassembly and reassembly can
damage plastic parts. Use care when handling the plastic parts.
Apply pressure only at the points designated in the maintenance
instructions.
Cables and Connectors
CAUTION: When servicing the notebook, ensure that cables are
Ä
placed in their proper locations during the reassembly process.
Improper cable placement can damage the notebook.
Cables must be handled with extreme care to avoid damage.
Apply only the tension required to unseat or seat the cables
during removal and insertion. Handle cables by the connector
whenever possible. In all cases, avoid bending, twisting, or
tearing cables. Ensure that cables are routed in such a way that
they cannot be caught or snagged by parts being removed or
replaced. Handle flex cables with extreme care; these cables
tear easily.
4–2Maintenance and Service Guide
Removal and Replacement Preliminaries
4.3Preventing Damage to
Removable Drives
Removable drives are fragile components that must be handled
with care. To prevent damage to the notebook, damage to a
removable drive, or loss of information, observe the following
precautions:
■Before removing or inserting a hard drive, shut down the
notebook. If you are unsure whether the notebook is off or
in hibernation, turn the notebook on, and then shut it down
through the operating system.
■Before removing a diskette drive or optical drive, ensure that
a diskette or disc is not in the drive and ensure that the optical
drive tray is closed.
■Before handling a drive, ensure that you are discharged of
static electricity. While handling a drive, avoid touching the
connector.
■Handle drives on surfaces covered with at least one inch of
shock-proof foam.
■Avoid dropping drives from any height onto any surface.
■After removing a hard drive, an optical drive, or a diskette
drive, place it in a static-proof bag.
■Avoid exposing a hard drive to products that have magnetic
fields, such as monitors or speakers.
■Avoid exposing a drive to temperature extremes or liquids.
■If a drive must be mailed, place the drive in a bubble pack
mailer or other suitable form of protective packaging and label
the package “Fragile: Handle With Care.”
Maintenance and Service Guide4–3
Removal and Replacement Preliminaries
4.4Preventing Electrostatic Damage
Many electronic components are sensitive to electrostatic
discharge (ESD). Circuitry design and structure determine the
degree of sensitivity. Networks built into many integrated circuits
provide some protection, but in many cases, the discharge
contains enough power to alter device parameters or melt
silicon junctions.
A sudden discharge of static electricity from a finger or other
conductor can destroy static-sensitive devices or microcircuitry.
Often the spark is neither felt nor heard, but damage occurs.
An electronic device exposed to electrostatic discharge may not
be affected at all and can work perfectly throughout a normal
cycle. Or the device may function normally for a while, then
degrade in the internal layers, reducing its life expectancy.
4–4Maintenance and Service Guide
Removal and Replacement Preliminaries
4.5Packaging and Transporting
Precautions
Use the following grounding precautions when packaging and
transporting equipment:
■To avoid hand contact, transport products in static-safe
containers, such as tubes, bags, or boxes.
■Protect all electrostatic-sensitive parts and assemblies with
conductive or approved containers or packaging.
■Keep electrostatic-sensitive parts in their containers until
the parts arrive at static-free workstations.
■Place items on a grounded surface before removing items
from their containers.
■Always be properly grounded when touching a sensitive
component or assembly.
■Store reusable electrostatic-sensitive parts from assemblies
in protective packaging or nonconductive foam.
■Use transporters and conveyors made of antistatic belts and
roller bushings. Ensure that mechanized equipment used for
moving materials is wired to ground and that proper materials
are selected to avoid static charging. When grounding is not
possible, use an ionizer to dissipate electric charges.
Maintenance and Service Guide4–5
Removal and Replacement Preliminaries
4.6Workstation Precautions
Use the following grounding precautions at workstations:
■Cover the workstation with approved static-shielding material
(refer to
■Use a wrist strap connected to a properly grounded work
surface and use properly grounded tools and equipment.
■Use conductive field service tools such as cutters, drivers, and
vacuums.
■When fixtures must directly contact dissipative surfaces, use
fixtures made only of static-safe materials.
■Keep the work area free of nonconductive materials such
as ordinary plastic assembly aids and Styrofoam.
■Handle electrostatic-sensitive components, parts, and
assemblies by the case or PCM laminate. Handle these
items only at static-free workstations.
Table 4-2, “Static-Shielding Materials”).
■Avoid contact with pins, leads, or circuitry.
■Turn off power and input signals before inserting or removing
connectors or test equipment.
4–6Maintenance and Service Guide
Removal and Replacement Preliminaries
4.7Grounding Equipment and
Methods
Grounding equipment must include either a wrist strap or a
foot strap at a grounded workstation.
■When seated, wear a wrist strap connected to a grounded
system. Wrist straps are flexible straps with a minimum of
one megohm ±10% resistance in the ground cords. To provide
proper ground, wear a strap snugly against the skin at all times.
On grounded mats with banana-plug connectors, use alligator
clips to connect a wrist strap.
■When standing, use foot straps and a grounded floor mat.
Foot straps (heel, toe, or boot straps) can be used at standing
workstations and are compatible with most types of shoes
or boots. On conductive floors or dissipative floor mats, use
foot straps on both feet with a minimum of one megohm
resistance between the operator and ground. To be effective,
the conductive strips must be worn in contact with the skin.
Other grounding equipment recommended for use in preventing
electrostatic damage includes:
■Antistatic tape
■Antistatic smocks, aprons, and sleeve protectors
■Conductive bins and other assembly or soldering aids
■Nonconductive foam
■Conductive tabletop workstations with ground cords of
one megohm resistance
■Static-dissipative tables or floor mats with hard ties to
the ground
■Field service kits
■Static awareness labels
■Material-handling packages
■Nonconductive plastic bags, tubes, or boxes
■Metal tote boxes
■Electrostatic voltage levels and protective materials
Maintenance and Service Guide4–7
Removal and Replacement Preliminaries
Table 4-1 shows how humidity affects the electrostatic voltage
levels generated by different activities.
Table 4 -1
Typical Electrostatic Voltage Levels
Relative Humidity
Event10%40%55%
Walking across carpet35,000 V15,000 V7,500 V
Walking across vinyl floor12,000 V 5,000 V3,000 V
Motions of bench worker6,000 V800 V400 V
Removing DIPS from plastic tube2,000 V700 V400 V
Removing DIPS from vinyl tray11,500 V4,000 V2,000 V
Removing DIPS from Styrofoam14,500 V5,000 V3,500 V
Removing bubble pack from PCB26,500 V20,000 V7,000 V
Packing PCBs in foam-lined box21,000 V11,000 V5,000 V
A product can be degraded by as little as 700 V.
✎
Table 4-2 lists the shielding protection provided by antistatic
bags and floor mats.
Table 4-2
Static-Shielding Materials
MaterialUseVoltage Protection Level
Antistatic plasticBags1,500 V
Carbon-loaded plasticFloor mats7,500 V
Metallized laminateFloor mats5,000 V
4–8Maintenance and Service Guide
Removal and Replacement
This chapter provides removal and replacement procedures.
There are as many as 102 screws and screw locks, in 10 different
sizes, that may have to be removed, replaced, or loosened when
servicing the notebook. Make special note of each screw and
screw lock size and location during removal and replacement.
Refer to Appendix C, “Screw Listing.” for detailed information
on screw and screw lock sizes, locations, and usage.
5.1Serial Number
5
Procedures
Report the notebook serial number to HP when requesting
information or ordering spare parts. The serial number is
located on the bottom of the notebook.
Serial Number Location
Maintenance and Service Guide5–1
Removal and Replacement Procedures
5.2Disassembly Sequence Chart
Use the chart below to determine the section number to be
referenced when removing notebook components.
Disassembly Sequence Chart
SectionDescription# of Screws Removed
5.3Preparing the notebook for
disassembly
Battery pack0
5.4Hard drive2 loosened to remove the
hard drive cover
4 to remove the
hard drive frame
5.5Notebook feet0
5.6Optical drive1
5.7Memory module3 loosened to remove the
memory module/Mini PCI
compartment cover
5.8Mini PCI communications card3 loosened to remove the
memory module/Mini PCI
compartment cover
To prevent an unresponsive system and the display of a
Å
warning message, install only a Mini PCI device authorized
for use in your notebook by the governmental agency that
regulates wireless devices in your country. If you install a
device and then receive a warning message, remove the
device to restore notebook functionality. Then contact
Customer Care.
Before you begin any removal or installation procedures:
1. Shut down the notebook. If you are unsure whether the
notebook is off or in hibernation, turn the computer on,
and then shut it down through the operating system.
2. Disconnect all external devices connected to the notebook.
3. Disconnect the power cord.
Battery Pack Spare Part Number Information
12-cell, 8.8-AHr383492-001
6-cell, 4.4-AHr383493-001
4. Remove the battery pack by following these steps:
a. Turn the notebook upside down with the front toward you.
5–4Maintenance and Service Guide
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