Maintenance and Service
Guide
HP Pavilion dv4000 Notebook PC
Compaq Presario V4000 Notebook PC
Document Part Number: 377367-003
October 2005
This guide is a troubleshooting reference used for maintaining
and servicing the computer. It provides comprehensive
information on identifying computer features, components, and
spare parts; troubleshooting computer problems; and performing
computer disassembly procedures.
© Copyright 2005 Hewlett-Packard Development Company, L.P.
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
Third Edition October 2005
First Edition March 2005
Document Part Number: 377367-003
Contents
1 Product Description
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.2 Resetting the Computer. . . . . . . . . . . . . . . . . . . . . . . 1–4
1.3 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.4 External Components . . . . . . . . . . . . . . . . . . . . . . . . 1–6
1.5 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–26
2 Troubleshooting
2.1 Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Accessing Computer Setup . . . . . . . . . . . . . . . . . . . . 2–2
Computer Setup Defaults . . . . . . . . . . . . . . . . . . . . . 2–2
Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2–3
Selecting from the Security Menu . . . . . . . . . . . . . . 2–4
Selecting from the Tools Menu. . . . . . . . . . . . . . . . . 2–5
Selecting from the Advanced Menu . . . . . . . . . . . . . 2–6
2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . 2–7
Maintenance and Service Guide iii
Contents
3 Illustrated Parts Catalog
3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 Computer Major Components. . . . . . . . . . . . . . . . . . 3–2
3.3 Display Assembly Subcomponents. . . . . . . . . . . . . 3–14
HP Pavilion dv4000 Models . . . . . . . . . . . . . . . . . . 3–14
3.4 Display Assembly Subcomponents. . . . . . . . . . . . . 3–16
Compaq Presario V4000 Models . . . . . . . . . . . . . . 3–16
3.5 Miscellaneous Doors/Covers Kit
Spare Part Information . . . . . . . . . . . . . . . . . . . . . . 3–18
3.6 Miscellaneous Cable Kit . . . . . . . . . . . . . . . . . . . . . 3–20
3.7 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–22
3.8 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3–24
3.9 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–26
4 Removal and Replacement Preliminaries
4.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
4.2 Service Considerations . . . . . . . . . . . . . . . . . . . . . . . 4–2
Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4–2
4.3 Preventing Damage to Removable Drives . . . . . . . . 4–3
4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . 4–4
4.5 Packaging and Transporting Precautions . . . . . . . . . 4–5
4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4–6
4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4–7
iv Maintenance and Service Guide
5 Removal and Replacement Procedures
5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5–3
5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–5
5.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7
5.5 Computer Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11
5.6 Optical Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–13
5.7 Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–15
5.8 Mini PCI Communications Module . . . . . . . . . . . . 5–18
5.9 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20
5.10 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–21
5.11 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–24
5.12 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–26
5.13 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–29
5.14 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–34
5.15 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–50
5.16 Base Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–54
5.17 Modem Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–58
5.18 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–60
5.19 Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–73
5.20 Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–76
5.21 USB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–78
5.22 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . 5–81
Contents
Maintenance and Service Guide v
Contents
6 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
C Screw Listing
D Display Component Recycling
Index
vi Maintenance and Service Guide
1
Product Description
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 Guide 1–1
Product Description
1.1 Features
■ 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 computer model
■ 15.4-inch, WXGA, TFT (1280 × 800) with BrightView
display, or 15.4-inch, WXGA, TFT (1280 × 800) display,
varying by computer model
■ 100-, 80-, 60-, or 40-GB high-capacity hard drive, varying by
computer 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 computer 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 computer 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
1–2 Maintenance 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:
■ Digital Media Slot/Memory Reader
■ Expansion port
■ ExpressCard slot
■ IEEE 1394 port
■ Infrared port
■ Quick Launch buttons (HP Pavilion dv4000 models only)
A computer 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 Guide 1–3
Product Description
1.2 Resetting the Computer
If the computer you are servicing has an unknown password,
follow these steps to set a new password. These steps also
clear CMOS:
1. Enter an incorrect password and press
enter.
2. Repeat step 1 two more times.
After the third entry of the incorrect password, the computer
responds with a “System Disabled” message and provides an
override password.
3. On another computer running Windows XP, download the
unlock6.exe utility from the HP Channel Services Network
(CSN) Web site at
http://www.hp.com/partners/csn. Copy the
unlock6.exe utility into the root directory (C:\ drive).
4. Access MS-DOS by clicking Start > All Programs >
Accessories > Command Prompt.
5. Enter
unlock6 xxxxx 0, where “xxxxx” is the password
generated by the computer in step 2.
The computer responds with another system-generated
password.
6. Enter the password generated in step 5 on the disabled
computer to enter the system BIOS. In the BIOS, navigate
to the Security tab and Administrator Password. Enter the
password generated in step 5 as the current password. Enter
a new password to change it.
7. The password has been reset and all CMOS settings have
been cleared.
1–4 Maintenance and Service Guide
1.3 Power Management
The computer comes with power management features that
extend battery operating time and conserve power. The
computer supports the following power management features:
■ Standby
■ Hibernation
■ Setting customization by the user
■ Hotkeys for setting the level of performance
■ Battery calibration
■ Lid switch standby/resume
■ Power button
■ Advanced Configuration and Power Management (ACPM)
compliance
Product Description
Maintenance and Service Guide 1–5
Product Description
1.4 External Components
The external components on the front of the computer are shown
below and described in Table 1-1. Depending on your computer
model, component locations may vary.
Front Components
1–6 Maintenance and Service Guide
Product Description
Tabl e 1-1
Front Components
Item Component Function
1Power light ■ On: Computer is turned on.
■ Blinking: Computer is in standby.
■ Off: Computer 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.
3 Integrated Drive
Electronics (IDE)
drive light
4 Consumer infrared
(IR) lens (select
models only)
5 Speakers Produce stereo sound.
6 Display release button Opens the computer.
On or blinking: The internal hard drive or an
optical drive is being accessed.
Links the computer to an optional remote
control.
Maintenance and Service Guide 1–7
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 computer model, component locations may vary.
Right-Side Components, HP Pavilion dv4000
1–8 Maintenance and Service Guide
Product Description
Tabl e 1-2
Right-Side Components, HP Pavilion dv4000
Item Component Function
1 Optical drive Supports an optical disc, such as a CD
or DVD.
2Audio-out
(headphone) jack
(full-featured
models only)
3 Audio-in (microphone)
jack (full-featured
models only)
4 USB ports
(full-featured
models only)
Number of USB ports vary by model.
✎
5 Monitor port
(full-featured
models only)
6S-Video-out jack
(full-featured
models only)
7 Security cable slot Attaches an optional security cable to the
The purpose of security solutions is to act as a deterrent. These
✎
solutions do not prevent the product from being mishandled or
stolen.
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.
computer.
Maintenance and Service Guide 1–9
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 computer model, component
locations may vary.
Right-Side Components, Compaq Presario V4000
1–10 Maintenance and Service Guide
Product Description
Tabl e 1-3
Right-Side Components, Compaq Presario V4000
Item Component Function
1 Optical drive Supports an optical disc, such as a CD
or DVD.
2 Audio-out (headphone)
jack (full-featured
models only)
3 Audio-in (microphone)
jack (full-featured
models only)
4 USB ports
(full-featured
models only)
Number of USB ports vary by model.
✎
5 Monitor port
(full-featured
models only)
6 S-Video-out jack
(full-featured
models only)
7 Security cable slot Attaches an optional security cable to the
The purpose of security solutions is to act as a deterrent. These
✎
solutions do not prevent the product from being mishandled or
stolen.
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.
computer.
Maintenance and Service Guide 1–11
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 computer model, component locations may vary.
Left-Side Components, HP Pavilion dv4000
Tabl e 1-4
Left-Side Components, HP Pavilion dv4000
Item Component Function
1 Power connector Connects the AC adapter cable.
2 RJ-11 (modem) jack Connects a modem cable (not included).
3 RJ-45 (network) jack Connects a network cable (not included).
4 Expansion port 2
(full-featured
models only)
The computer has only one expansion port. The term
✎
expansion port 2
5 USB ports Connect optional USB devices.
1–12 Maintenance and Service Guide
Connects the computer to an optional
docking device.
describes the type of expansion port.
Tabl e 1-4
Product Description
Left-Side Components, HP Pavilion dv4000
Item Component Function
6 1394 port (4-pin;
full-featured
models only)
7 Digital Media Slot
(full-featured
models only)
8 Digital Media Slot
light (full-featured
models only)
9 ExpressCard slot
(full-featured
models only)
10 PC Card slot Supports an optional Type I or Type II 32-bit
11 PC Card eject button Ejects PC Cards from the PC Card slot.
12 Monitor port
(full-featured
models only)
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.
Connects an optional VGA monitor or
projector.
(Continued)
13 S-Video-out jack
(full-featured
models only)
14 Audio-in (microphone)
jack (full-featured
models only)
15 Audio-out (headphone)
jack (defeatured
models only)
Maintenance and Service Guide 1–13
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 computer model, component locations may vary.
Left-Side Components, Compaq Presario V4000
Tabl e 1-5
Left-Side Components, Compaq Presario V4000
Item Component Function
1 Power connector Connects the AC adapter cable.
2 RJ-11 (modem) jack Connects a modem cable (not included).
3 RJ-45 (network) jack Connects a network cable (not included).
4 Expansion port 2
(full-featured
models only)
The computer has only one expansion port. The term
✎
expansion port 2
5 USB ports Connect optional USB devices.
Number of USB ports vary by model.
✎
1–14 Maintenance and Service Guide
Connects the computer to an optional
docking device.
describes the type of expansion port.
Tabl e 1-5
Product Description
Left-Side Components, Compaq Presario V4000
Item Component Function
6 1394 port (4-pin;
full-featured
models only)
7 Memory Reader
(full-featured
models only)
8 Memory Reader
light (full-featured
models only)
9 ExpressCard slot
(full-featured
models only)
10 PC Card slot Supports an optional Type I or Type II 32-bit
11 PC Card eject button Ejects PC Cards from the PC Card slot.
12 Monitor port
(full-featured
models only)
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.
Connects an optional VGA monitor or
projector.
(Continued)
13 S-Video-out jack
(defeatured
models only)
14 Audio-in (microphone)
jack (defeatured
models only)
15 Audio-out (headphone)
jack (defeatured
models only)
Maintenance and Service Guide 1–15
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 computer are shown
below and described in Table 1-6.
Standard Keyboard Components
1–16 Maintenance and Service Guide
Product Description
Table 1-6
Standard Keyboard Components
Item Component Function
1 fn key Combines with other keys to perform
system tasks as hotkeys. For example,
pressing fn+f7 decreases screen
brightness.
2 caps lock key Enables caps lock and turns on the caps
lock light.
3 f1 to f12 keys (12) Perform system and application tasks.
When combined with fn, function keys
perform additional tasks as hotkeys.
4 num lock key Enables numeric lock, turns on the
embedded numeric keypad, and turns
on the num lock light.
5 Embedded numeric
keypad keys (15)
6 Arrow keys Move the cursor around the screen.
7Windows
applications key
8 Windows logo key Displays the Microsoft Windows
Maintenance and Service Guide 1–17
Can be used like the keys on an external
numeric keypad.
Displays a shortcut menu for items
beneath the pointer.
Start menu.
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
Item Component Function
1Power light ■ On: Computer is turned on.
■ Blinking: Computer is in standby.
■ Off: Computer is off or in hibernation.
2 Power button When the computer is
■ Off, press to start the computer.
■ 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 computer.
1–18 Maintenance and Service Guide
Table 1-7
Product Description
Top Components, HP Pavilion dv4000
Item Component Function
3 Quick Launch buttons
(select models only)
4 Volume mute button Mutes or restores volume.
5 Wireless light
(select models only)
To establish a wireless connection, a wireless network must
✎
already be set up.
6 Wireless button
(select models only)
To establish a wireless connection, a wireless network must
✎
already be set up.
7 Volume down button Decreases system volume.
8 Volume up button Increases system volume.
9 Display switch Initiates standby when the computer 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 Guide 1–19
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
1–20 Maintenance and Service Guide
Table 1-8
Top Components, Compaq Presario V4000 Models
Item Component Function
Product Description
1 Wireless button
(select models only)
To establish a wireless connection, a wireless network must
✎
already be set up.
2 Power button When the computer 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 computer.
3 Volume down button Decreases system volume.
4 Volume mute button
Volume mute light
5 Volume up button Increases system volume.
6 Display switch Initiates standby when the computer is
Turns the wireless functionality on or off,
but does not create a wireless connection.
■ Off, press to start the computer.
■ 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.
closed.
Maintenance and Service Guide 1–21
Product Description
The HP Pavilion dv4000 computer TouchPad components are
shown below and described in Table 1-9.
TouchPad Components, HP Pavilion dv4000
Table 1-9
TouchPad Components, HP Pavilion dv4000
Item Component Function
1 TouchPad Moves the pointer.
2 Left and right TouchPad
buttons
3 Display release button Opens the computer.
4 TouchPad vertical
scroll zone
1–22 Maintenance and Service Guide
Function like the left and right buttons on
an external mouse.
Scrolls up or down.
Product Description
The Compaq Presario V4000 computer TouchPad components
are shown below and described in Table 1-10.
TouchPad Components, Compaq Presario V4000
Table 1-10
TouchPad Components, Compaq Presario V4000
Item Component Function
1 TouchPad Moves the pointer.
2 TouchPad horizontal
scroll zone
3 Left and right TouchPad
buttons
4 TouchPad vertical
scroll zone
Maintenance and Service Guide 1–23
Scrolls left or right.
Function like the left and right buttons on
an external mouse.
Scrolls up or down.
Product Description
The external components on the bottom of the computer are
shown below and described in Table 1-11.
Bottom Components
Table 1-11
Bottom Components
Item Component Function
1 Battery bay Holds a battery pack.
2 Vents (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.
3 Hard drive bay Holds the internal hard drive.
1–24 Maintenance and Service Guide
Table 1-11
Product Description
Bottom Components
Item Component Function
4 Optical drive Supports an optical disc, such as a CD
5 Labels area Contains the serial number and other
6 Battery pack release latch Releases a battery pack from the
7 Memory module cover Contains 2 memory module slots that
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 computer 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 computer functionality. Then
contact Customer Care.
8 Thermal cover Provides access to the heat sink and
(Continued)
or DVD.
information labels.
battery bay.
support replaceable memory modules.
The number of preinstalled memory
modules varies by computer model.
Holds an optional wireless LAN device
(select models only).
processor.
Maintenance and Service Guide 1–25
Product Description
1.5 Design Overview
This section presents a design overview of key parts and features
of the computer. 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
■ Mini PCI communications devices
■ PC Card
■ To uc hP ad
CAUTION: To properly ventilate the computer, allow at least a 7.6-cm
Ä
(3-inch) clearance on the left and right sides of the computer.
The computer 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 computer.
1–26 Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by HP should repair
Å
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.
2.1 Computer Setup
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 computer 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.
2
The menu tables later in this chapter provide an overview of
Computer Setup options.
Maintenance and Service Guide 2–1
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
computer. 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.
❏ 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 computer restarts.
f10 while the F10 = Based Setup message is
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
computer. 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.
3. Select the Restore Defaults check box.
2–2 Maintenance and Service Guide
f10 while the F10 = Based Setup message is
Troubleshooting
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
Select To Do This
System Information ■ View identification information about the
computer 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.
Save to floppy Save system configuration settings to a diskette.
Restore to floppy Restore system configuration settings from a
diskette.
Restore defaults Replace configuration settings in Computer Setup
with factory default settings. (Identification
information is retained.)
Ignore changes and exit Cancel changes entered during the current
session. Then exit and restart the computer.
Save changes and exit Save changes entered during the current session.
Then exit and restart the computer. The changes
you save are in effect when the computer restarts.
Maintenance and Service Guide 2–3
Troubleshooting
Selecting from the Security Menu
Table 2 -2
Security Menu
Select To Do This
Administrator password Enter, change, or delete an HP Administrator
password.
Power-on password Enter, change, or delete a power-on password.
Password options
DriveLock passwords Enable/disable DriveLock; change a DriveLock
Smart Card Security Enable/disable power-on support for smart cards.
Embedded Security
Device security Enable/Disable devices in the system.
System IDs Enter user-defined identification values.
■ 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 computer.
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.
Embedded Security settings are accessible
✎
only if the computer is equipped with an
embedded security chip.
Enable NIC for inclusion in MultiBoot.
2–4 Maintenance and Service Guide
Troubleshooting
Selecting from the Tools Menu
Table 2 -3
Tools M enu
Select To Do This
HDD Self Test options Run a quick or comprehensive self-test on any
hard drive in the system.
Battery Information View information about any battery packs in the
computer.
Memory Check
■ Run a self-test on memory modules in the
computer.
■ View information about memory modules
installed in the computer.
Maintenance and Service Guide 2–5
Troubleshooting
Selecting from the Advanced Menu
Table 2 -4
Advanced Menu
Select To Do This
Language (or press f2) Change the Computer Setup language.
Boot options
■ Enable/Disable MultiBoot, which sets a startup
sequence that can include most bootable
devices and media in the system.
■ Set the boot order.
Device options ■ Swap the functions of the fn key and
left ctrl key.
■ Enable/Disable multiple pointing devices at
startup. (To set the computer 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 computer 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
computer or to an optional docking
device.
■ Select a parallel port mode: EPP (Enhanced
Parallel Port), standard, bidirectional, or ECP
(Enhanced Capabilities Port).
■ Enable/Disable all settings in the SpeedStep
window. (When Disable is selected, the
computer runs in Battery Optimized mode.)
2–6 Maintenance and Service Guide
Troubleshooting
2.2 Troubleshooting Flowcharts
Tabl e 2-5
Troubleshooting Flowcharts Overview
Flowchart Description
2.1 “Flowchart 2.1—Initial Troubleshooting”
2.2 “Flowchart 2.2—No Power, Part 1”
2.3 “Flowchart 2.3—No Power, Part 2”
2.4 “Flowchart 2.4—No Power, Part 3”
2.5 “Flowchart 2.5—No Power, Part 4”
2.6 “Flowchart 2.6—No Video, Part 1”
2.7 “Flowchart 2.7—No Video, Part 2”
2.8 “Flowchart 2.8—Nonfunctioning Docking Device (if applicable)”
2.9 “Flowchart 2.9—No Operating System (OS) Loading”
2.10 “Flowchart 2.10—No OS Loading, Hard Drive, Part 1”
2.11 “Flowchart 2.11—No OS Loading, Hard Drive, Part 2”
2.12 “Flowchart 2.12—No OS Loading, Hard Drive, Part 3”
2.13 “Flowchart 2.13—No OS Loading, Diskette Drive”
Maintenance and Service Guide 2–7
Troubleshooting
Tabl e 2-5
Troubleshooting Flowcharts Overview
Flowchart Description
2.14 “Flowchart 2.14—No OS Loading, Optical Drive”
2.15 “Flowchart 2.15—No Audio, Part 1”
2.16 “Flowchart 2.16—No Audio, Part 2”
2.17 “Flowchart 2.17—Nonfunctioning Device”
2.18 “Flowchart 2.18—Nonfunctioning Keyboard”
2.19 “Flowchart 2.19—Nonfunctioning Pointing Device”
2.20 “Flowchart 2.20—No Network/Modem Connection”
(Continued)
2–8 Maintenance and Service Guide
Flowchart 2.1—Initial Troubleshooting
Begin
troubleshooting.
N
Go to
Is there
power?
Y
N
Beeps,
LEDs, or error
messages?
Y
N
Is there video?
(no boot)
Y
N
Is the OS
loading?
Y
N
Is there
sound?
Y
“Flowchart
2.2—No Power,
Par t 1.”
Check
LED board,
speaker
connections.
Go to
“Flowchart
2.6—No Video,
Part 1.”
Go to
“Flowchart
2.9—No Operating
System (OS)
Loading.”
Go to
“Flowchart
2.15—No Audio,
Par t 1.”
N
All drives
working?
Y
N
Keyboard/
pointing
device
working?
Y
N
Connecting
to network
or modem?
Y
End
Troubleshooting
Go to
“Flowchart
2.17—Nonfunctioning Device.”
Go to
“Flowchart
2.18—Nonfunc-
tioning Keyboard”
or “Flowchart
2.19—Nonfunctioning Pointing
Device.”
Go to
“Flowchart
2.20—No
Network/Modem
Connection.”
Maintenance and Service Guide 2–9
Troubleshooting
N
Flowchart 2.2—No Power, Part 1
No power
(power LED
is off).
Remove from
docking device
(if applicable).
Y
Y
Power up
on battery
power?
Power up
on AC
power?
N
Reset
power.*
Power up
on battery
power?
Y
N
Reset
power.*
Power up
on AC power?
Y
N
Go to
“Flowchart
2.3—No Power,
Par t 2.”
N
Go to
“Flowchart
2.4—No Power,
Part 3.”
Y
Power up in
docking
device?
1. Reseat the power cables in the docking
device and at the AC outlet.
2. Ensure the AC power source is active.
3. Ensure that the power strip is working.
Done
YN
Done
Power up
in docking
device?
*NOTES
1. On select models, there is a separate
reset button.
2. On select models, the computer can be
reset using the standby switch and either
the lid switch or the main power switch.
Go to
“Flowchart
2.8—Nonfunctioning
Docking Device (if
applicable).”
2–10 Maintenance and Service Guide
Flowchart 2.3—No Power, Part 2
N
Continued from
“Flowchart
2.2—No Power,
Par t 1.”
Visually check for
debris in battery
socket and clean
if necessary.
Y
Troubleshooting
Power on?
Check battery by
recharging it,
moving it to
another computer,
or replacing it.
Done
N
Power on?
Replace
power supply
(if applicable).
Y
N
Go to
Done
Power on?
“Flowchart
2.4—No Power,
Part 3.”
Y
Done
Maintenance and Service Guide 2–11
Troubleshooting
Flowchart 2.4—No Power, Part 3
Continued from
“Flowchart
2.3—No Power,
Part 2.”
Plug directly
into AC outlet.
Y
Power LED
on?
N
Reseat AC adapter
in computer and
at power source.
Power on?
N
Power outlet
active?
Y
Replace
power cord.
Power on?
Done
Y
Done
External
N
Try different
outlet.
Internal or
external AC
adapter?
Internal
Go to
“Flowchart
2.5—No Power,
Part 4.”
Replace external
AC adapter.
N
Power on?
Y
Y
Done
Done
N
2–12 Maintenance and Service Guide
Flowchart 2.5—No Power, Part 4
Continued from
“Flowchart
2.4—No Power,
Par t 3.”
Open
computer.
Troubleshooting
N
computer and
Y
Loose or
damaged
parts?
Close
retest.
Power on?
Done
Y
Reseat loose
components and
boards and
replace damaged
items.
N
Replace the following items (if applicable). Check
computer operation after each replacement:
1. Internal DC-DC converter*
2. Internal AC adapter
3. Processor board*
4. System board*
*NOTE: Replace these items as a set to prevent
shorting out among components.
Maintenance and Service Guide 2–13
Troubleshooting
Flowchart 2.6—No Video, Part 1
No video.
Docking Device
Stand-alone
or docking
device?
Go to
“Flowchart
2.7—No Video,
Part 2.”
*NOTE: To change from internal to
external display, use the hotkey
combination.
Stand-alone
Internal or
external
display*?
External
Adjust
brightness.
Internal
Y
Video OK? Done
N
Check for bent
pins on cable.
N
Video OK?
Adjust
brightness.
Video OK? Done
N
A
Press lid
switch to ensure
operation.
Video OK? Done
N
Replace the following one at a time. Test after each replacement.
1. Cable between computer and computer display (if applicable)
2. Display
3. System board
Try
another
display.
Internal and
external
video OK?
Y
Y
N
Replace
system
board.
YY
Done
Done
2–14 Maintenance and Service Guide
Flowchart 2.7—No Video, Part 2
Continued from
“Flowchart
2.6—No Video,
Part 1.”
Remove
computer from
docking device,
if connected.
Troubleshooting
Adjust
display
brightness.
N
Video OK?
Y
Check that computer is properly
seated in docking device,
for bent pins on cable,
and for monitor connection.
Y
Video OK?
N
Adjust external
monitor display.
Go to “A” in
“Flowchart
2.6—No Video,
Part 1.”
Done
Check brightness
of external
monitor.
Video OK?
N
Try another
external
monitor.
Internal
and external
video OK?
N
Go to
“Flowchart
2.8—Nonfunctioning
Docking Device (if
applicable).”
Y
Done
Y
Done
Maintenance and Service Guide 2–15
Troubleshooting
Flowchart 2.8—Nonfunctioning Docking Device
(if applicable)
Nonfunctioning
docking device.
Reseat power
cord in docking
device and
power outlet.
Check voltage
setting on docking
device.
Reset monitor
cable connector at
docking device.
Docking
device
operating?
N
Remove computer,
replace docking
device.
Reinstall
computer into
docking device.
Y
Docking
device
operating?
Y
Done
N
Test replacement
docking device with
new computer.
Done
2–16 Maintenance and Service Guide
Troubleshooting
Flowchart 2.9—No Operating System (OS)
Loading
No OS
loading.*
Reseat power
cord in docking
device and
power outlet.
No OS loading from hard drive,
“Flowchart 2.10—No OS Loading,
go to
go to
Hard Drive, Part 1.”
No OS loading from diskette drive,
“Flowchart 2.13—No OS Loading,
Diskette Drive.”
No OS loading from optical drive,
“Flowchart 2.14—No OS Loading,
go to
“Flowchart 2.20—No Network/Modem
go to
*NOTE: Before beginning troubleshooting, always
check cable connections, cable ends, and drives
for bent or damaged pins.
Optical Drive.”
No OS loading from network,
Connection.”
Maintenance and Service Guide 2–17
Troubleshooting
Flowchart 2.10—No OS Loading, Hard Drive,
Part 1
OS not
loading from
hard drive.
Nonsystem
disk message?
N
Reseat
external
hard drive.
OS loading?
N
Boot
from
CD?
Y
Check the Setup
utility for correct
booting order.
Boot
from
hard drive?
Y
Done
Y
Go to
“Flowchart
2.11—No OS
Loading,
Hard Drive, Part 2.”
Y
Done
N
N
Boot
from
diskette?
Y
N
Change boot
priority through
the Setup Utility
and reboot.
Go to
“Flowchart
2.13—No OS
Loading,
Diskette Drive.”
N
Boot
from
hard drive?
2.17—Nonfunctioning
Go to
“Flowchart
Device.”
Y
2–18 Maintenance and Service Guide
Troubleshooting
Flowchart 2.11—No OS Loading, Hard Drive,
Part 2
Continued from
“Flowchart
2.10—No OS
Loading,
Hard Drive, Part 1.”
Disc or
diskette in
drive?
Y
Remove disc or
diskette and
reboot.
N
1. Replace
hard drive.
2. Replace system
board.
N
Reseat
hard drive.
Hard drive
accessible?
Run FDISK.
Y
Done
N
from diskette
Y
Boot
from
hard drive?
Boot
drive?
Y
N
Diskette Drive.”
Done
Go to
“Flowchart
2.13—No OS
Loading,
Hard drive
partitioned?
Y
Hard drive
formatted?
Y
N
Create partition,
and then format
hard drive to
bootable
C:\ prompt.
N
Format hard drive
and bring to
abootable
C:\ prompt.
N
Y
Computer
booted?
Load OS using
Operating System disc
(if applicable).
Y
Hard drive
accessible?
Done
N
Go to
“Flowchart
2.12—No OS
Loading,
Hard Drive, Part 3.”
Maintenance and Service Guide 2–19
Go to
“Flowchart
2.12—No OS
Loading,
Hard Drive, Part 3.”
Troubleshooting
Flowchart 2.12—No OS Loading, Hard Drive,
Part 3
Continued from
“Flowchart
2.11—No OS
Loading,
Hard Drive, Part 2.”
N
System
files on hard
drive?
Y
Install OS
and reboot.
Virus
on
hard drive?
N
Run SCANDISK and
check for
bad sectors.
Can bad
sectors
be fixed?
Y
Fix bad
sectors.
Y
OS
Clean virus.
loading from
hard drive?
Y
Done
N
Y
Diagnostics on
disc or diskette?
Replace
hard drive.
N
N
Replace
hard drive.
Run diagnostics
and follow
recommendations.
N
Boot from
hard drive?
Replace
hard drive.
Y
Done
2–20 Maintenance and Service Guide
Troubleshooting
N
N
Flowchart 2.13—No OS Loading, Diskette Drive
Y
OS not loading
from
diskette drive.
Reseat
diskette drive.
OS
loading?
Done
N
Nonsystem
disk message?
Y
Bootable
diskette
in drive?
N
Install bootable
diskette and
reboot computer.
Y
N
Boot
from another
device?
Y
Go to
“Flowchart
2.17—Nonfunctioning Device.”
N
Diskette
drive enabled
in the Setup
utility?
Enable drive
and cold boot
computer.
Y
Y
Reset the computer.
Is diskette
drive boot
order
correct?
Refer to
Section 1.2,
“Resetting the
Computer,”
instructions.
for
Check diskette
for system files.
Try d iff er ent
diskette.
Nonsystem
disk error?
N
loading?
N
OS
Y
Replace the following
components
individually, retesting
after each
replacement:
■ Diskette drive
■ System board
Y
Done
Change boot
priority using
the Setup Utility.
2.17—Nonfunctioning
Go to
“Flowchart
Device.”
Maintenance and Service Guide 2–21
Troubleshooting
Flowchart 2.14—No OS Loading, Optical Drive
loading from
CD-ROM or
DVD-ROM drive.
Boots from
CD or DVD?
N
Reseat
No OS
drive.
N
bootable disc.
Disc
in drive?
Install
Y
Bootable
disc in
drive?
Y
Try another
bootable disc.
N
Install bootable
disc and
reboot
computer.
Y
Done
Y
Boots from
CD or DVD?
Done
N
N
Go to
“Flowchart
Device.”
Y
Booting
from another
device?
2.17—Nonfunctioning
Reset the computer.
Booting
correct?
N
Correct boot
order using
the Setup Utility.
order
Y
Refer to
Section 1.2,
“Resetting the
Computer,”
instructions.
for
2.17—Nonfunctioning
Go to
“Flowchart
Device.”
2–22 Maintenance and Service Guide
Flowchart 2.15—No Audio, Part 1
N
Turn up audio
No audio.
internally or
externally.
Audio? Done
N
Troubleshooting
Y
Computer in
docking device
(if applicable)?
Y
Undock
Internal
audio?
N
Go to
“Flowchart
2.16—No Audio,
Par t 2.”
Y
Go to
“Flowchart
2.16—No Audio,
Par t 2.”
Replace
the
docking device.
Y
Go to
“Flowchart
2.17—Nonfunctioning
Device.”
Audio? Done
N
Maintenance and Service Guide 2–23
Troubleshooting
Flowchart 2.16—No Audio, Part 2
Continued from
“Flowchart
2.15—No Audio,
Part 1.”
N
Audio
driver in OS
configured?
Y
N
Correct
drivers for
application?
Y
Connect to
external
speaker.
Reload
audio drivers.
Load drivers and
set configuration
in OS.
Replace audio
board and
Audio?
YN
speaker
connections
in computer
(if applicable).
Audio? Done
Replace the following components
individually, retesting after each
replacement:
■ Internal speakers
■ Audio board (if applicable)
YN
2–24 Maintenance and Service Guide
Flowchart 2.17—Nonfunctioning Device
Nonfunctioning
device.
Reseat
device.
Unplug the nonfunctioning device from the computer
and inspect cables and plugs for bent or broken pins
Clear
CMOS.
Reattach device.
Close computer,
plug in power,
and reboot.
or other damage.
Any physical
device detected?
N
Replace hard drive.
Y
Operating System
Troubleshooting
Fix or
replace
broken item.
Go to
“Flowchart
2.9—No
(OS) Loading.”
N
Device
boots
properly?
Y
Done
Replace NIC.
If integrated NIC,
replace system
board.
Y
Replace diskette
drive.
Maintenance and Service Guide 2–25
Device
boots
properly?
Done
N
Troubleshooting
Flowchart 2.18—Nonfunctioning Keyboard
Keyboard
not operating
properly.
Connect computer
to good external
keyboard.
N
Y
Reseat internal
connector
(if applicable).
Y
External
device
works?
keyboard
Replace
system
board.
N
Keyboard
operating
properly?
Replace internal
keyboard or
cable.
Y
Keyboard
Done Done
operating
properly?
N
Replace
system
board.
2–26 Maintenance and Service Guide
Troubleshooting
Flowchart 2.19—Nonfunctioning Pointing
Device
Pointing device
not operating
properly.
Connect computer
to good external
pointing device.
N
External
device
works?
Y
Reseat internal
pointing device
connector
(if applicable).
Replace
system
board.
N
Pointing device
operating
properly?
Replace internal
pointing device
or cable.
Y
Y
Done Done
Pointing device
operating
properly?
N
Replace
system
board.
Maintenance and Service Guide 2–27
Troubleshooting
Flowchart 2.20—No Network/Modem
Connection
No network
or modem
connection.
N
Network
or modem jack
active?
Y
Digital
line?
N
Replace jack
or have jack
activated.
Y
Connect
to nondigital
line.
Y
Done
Y
Disconnect all
the computer
NIC/modem
configured
in OS?
power from
and open.
N
Reload
drivers and
reconfigure.
Network
or modem
connection
working?
N
Replace the
NIC/modem
(if applicable).
Y
Reseat NIC/modem
(if applicable).
Network
or modem
connection
working?
Done
N
Replace
system
board.
2–28 Maintenance and Service Guide
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdown and a
reference for spare part numbers.
3.1 Serial Number Location
When ordering parts or requesting information, provide the
computer serial number and model number located on the bottom
of the computer.
3
Serial Number Location
Maintenance and Service Guide 3–1
Illustrated Parts Catalog
3.2 Computer Major Components
Computer Major Components, HP Pavilion dv4000
3–2 Maintenance and Service Guide
Illustrated Parts Catalog
Table 3 -1
Spare Parts: Computer Major Components
Spare Part
Item Description
1 Display assemblies (include display cable, wireless antenna boards,
and antenna cables)
For use with HP Pavilion dv4000 models
15.4-inch, WXGA, TFT with BrightView
15.4-inch, WXGA, TFT
For use with Compaq Presario V4000 models
15.4-inch, WXGA, TFT with BrightView
15.4-inch, WXGA, TFT
Refer to Section 3.3, “Display Assembly Subcomponents,” for
✎
display assembly internal component spare part number
information.
2 Switch cover (includes LED board and LED board cable)
Number
383477-001
383476-001
383479-001
383478-001
For use with HP Pavilion dv4000 models with wireless
capability
For use with HP Pavilion dv4000 models without
wireless capability
For use with Compaq Presario V4000 models with
wireless capability
For use with Compaq Presario V4000 models without
wireless capability
Maintenance and Service Guide 3–3
403911-001
403910-001
384619-001
403004-001
Illustrated Parts Catalog
Computer Major Components, Compaq Presario V4000
3–4 Maintenance and Service Guide
Table 3 -1
Illustrated Parts Catalog
Spare Parts: Computer Major Components
Item Description
3 Keyboards
For use with HP Pavilion dv4000 models:
Belgium
Denmark
Europe
France
French Canada
Germany
Greece
Israel
Italy
Korea
Norway
For use with Compaq Presario V4000 models:
Denmark
France
French Canada
Italy
Korea
The Netherlands
383495-181
383495-081
383495-021
383495-051
383495-121
383495-041
383495-151
383495-BB1
383495-061
383495-AD1
383495-091
384635-081
384635-051
384635-121
384635-061
384635-AD1
384635-331
Norway
Portugal
Saudi Arabia
Spain
Sweden/Finland
Switzerland
Ta i wa n
Thailand
Tu r ke y
United Kingdom
United States
Norway
Spain
Sweden/Finland
Thailand
United Kingdom
United States
(Continued)
Spare Part
Number
383495-091
383495-131
383495-171
383495-071
383495-B71
383495-111
383495-AB1
383495-281
383495-141
383495-031
383495-001
384635-091
384635-071
384635-101
384635-AB1
384635-031
384635-001
Maintenance and Service Guide 3–5
Illustrated Parts Catalog
Computer Major Components, HP Pavilion dv4000
3–6 Maintenance and Service Guide
Table 3 -1
Illustrated Parts Catalog
Spare Parts: Computer Major Components
Item Description
4 Top covers
For use with full-featured HP Pavilion dv4000 models
(includes TouchPad)
For use with defeatured HP Pavilion dv4000 models
(includes TouchPad)
For use with full-featured Compaq Presario V4000
models (does not include TouchPad)
For use with defeatured Compaq Presario V4000
models (does not include TouchPad)
TouchPad board, for use with Compaq Presario
V4000 models (not illustrated)
5 Modem board (high-speed 56K, includes
modem cable)
6 TouchPad cable 383467-001
Miscellaneous Doors/Covers Kit
For use with HP Pavilion dv4000 models 383469-001
For use with Compaq Presario V4000 models 384627-001
Includes:
7a
7b
7c
7d
7e
PC Card slot space saver
ExpressCard slot space saver
Thermal cover
Memory module compartment cover
Hard drive cover
Computer feet (not illustrated)
(Continued)
Spare Part
Number
397858-001
397860-001
397859-001
397861-001
391737-001
384623-001
Maintenance and Service Guide 3–7
Illustrated Parts Catalog
Computer Major Components, Compaq Presario V4000
3–8 Maintenance and Service Guide
Table 3 -1
Illustrated Parts Catalog
Spare Parts: Computer Major Components
Item Description
8 System board shield (for use with HP Pavilion
dv4000 models)
9 System boards
Full-featured
Defeatured
USB board, includes:
10a
10b
11 Bluetooth® module (includes Bluetooth
12a
12b
13 Speakers 383466-001
14 Base enclosures
USB board, USB board cable, and audio board cable
USB board frame
module cable)
Heat sink assembly, includes:
Fan
Heat sink
Thermal paste (not illustrated)
For use with full-featured HP Pavilion dv4000 models
For use with defeatured HP Pavilion dv4000 models
For use with Compaq Presario V4000 models 385739-001
(Continued)
Spare Part
Number
403915-001
396696-001
383462-001
384625-001
383459-001
384622-001
384629-001
390917-001
Rubber feet (not illustrated)
For use with HP Pavilion dv4000 models 404369-001
For use with Compaq Presario V4000 models 404576-001
Maintenance and Service Guide 3–9
Illustrated Parts Catalog
Computer Major Components, HP Pavilion dv4000
3–10 Maintenance and Service Guide
Table 3 -1
Illustrated Parts Catalog
Spare Parts: Computer Major Components
Item Description
15 Processors (include thermal paste)
Intel Pentium M 2.13-GHz
Intel Pentium M 2.00-GHz
Intel Pentium M 1.86-GHz
Intel Pentium M 1.73-GHz
Intel Pentium M 1.60-GHz
Intel Celeron M 1.50-GHz
Intel Celeron M 1.40-GHz
Intel Celeron M 1.30-GHz
16 Mini PCI communications modules
802.11b/g wireless local access network (WLAN)
module, for use in most of the world
802.11b/g WLAN module, for use in the rest of the
world
802.11b/g WLAN Broadcomm module, for use in most
of the world
802.11b/g WLAN Broadcomm module, for use in the
rest of the world
17 Memory modules
(Continued)
Spare Part
Number
396700-001
396699-001
393327-001
383474-001
383473-001
and
396698-001
383471-001
396697-001
389036-001
378973-001
378972-001
396694-001
396695-001
1024 MB
512 MB
256 MB
18 Battery packs
12-cell, 8.8-AHr
6-cell, 4.4-AHr
Maintenance and Service Guide 3–11
383482-001
383481-001
383480-001
383492-001
383493-001
Illustrated Parts Catalog
Computer Major Components, HP Pavilion dv4000
3–12 Maintenance and Service Guide
Table 3 -1
Illustrated Parts Catalog
Spare Parts: Computer Major Components
Item Description
19 Optical drives
For use with HP Pavilion dv4000 models
DVD±RW and CD-RW Double Layer Combo Drive
with LightScribe
DVD±RW and CD-RW Double Layer Combo Drive
DVD/CD-RW Combo Drive
DVD-ROM drive
For use with Compaq Presario V4000 models
DVD±RW and CD-RW Double Layer Combo Drive
with LightScribe
DVD±RW and CD-RW Double Layer Combo Drive
DVD/CD-RW Combo Drive
DVD-ROM drive
20 RTC battery (includes 2-sided tape) 384626-001
21 Hard drives (include frame and connector)
5400 rpm
80-GB
60-GB
383487-001
383485-001
4200-rpm
100-GB
80-GB
60-GB
40-GB
(Continued)
Spare Part
Number
396704-001
391743-001
383490-001
396706-001
396705-001
391744-001
384631-001
396707-001
383488-001
383486-001
383484-001
383483-001
Maintenance and Service Guide 3–13
Illustrated Parts Catalog
3.3 Display Assembly Subcomponents
HP Pavilion dv4000 Models
3–14 Maintenance and Service Guide
Display Assembly Subcomponent
Spare Part Number Information
Item Description
Illustrated Parts Catalog
Table 3-2
HP Pavilion dv4000
Display Plastics Kit, includes:
1a
1b
2 Display Panel Kit (includes display panel,
3a
3b
4 Wireless antenna (includes cable and board) 397924-001
■ Display bezel
■ Display enclosure
display inverter, and display cable)
Display Hinge Kit, includes:
■ Display hinges (2)
■ Display release hooks (2)
Display Label Kit (not illustrated) 403925-001
Display Screw Kit (not illustrated, includes Phillips
PM2.5×7.0 screws, Phillips PM2.5×5.0 screws, and
rubber screw covers)
403919-001
403918-001
403921-001
403923-001
Maintenance and Service Guide 3–15
Illustrated Parts Catalog
3.4 Display Assembly Subcomponents
Compaq Presario V4000 Models
3–16 Maintenance and Service Guide
Compaq Presario V4000 Models
Display Assembly Subcomponent
Spare Part Number Information
Item Description
Illustrated Parts Catalog
Table 3-3
Display Plastics Kit, includes:
1a
1b
1c
2 Display Panel Kit (includes the display panel,
3a
3b
4 Wireless antenna (includes cable and board) 397925-001
■ Display bezel
■ Display enclosure
■ Display hinge covers
display inverter, and display cable)
Display Hinge Kit, includes:
■ Display hinges (2)
■ Display release hooks (2)
Display Label Kit (not illustrated) 403926-001
Display Screw Kit (not illustrated, includes Phillips
PM2.5×7.0 screws, Phillips PM2.5×5.0 screws, and
rubber screw covers)
403920-001
403918-001
403922-001
403924-001
Maintenance and Service Guide 3–17
Illustrated Parts Catalog
3.5 Miscellaneous Doors/Covers Kit Spare Part Information
3–18 Maintenance and Service Guide
Illustrated Parts Catalog
Table 3-4
Miscellaneous Doors/Covers Kit
Spare Part Information
Spare Part
Item Description
Miscellaneous Doors/Covers Kit
For use with HP Pavilion dv4000 models 383469-001
For use with Compaq Presario V4000 models 384627-001
Includes:
1
2 ExpressCard slot space saver
3 Thermal cover (includes one captive screw, secured by C-clip)
4a
4b
5 Memory module/Mini PCI compartment cover (includes 3 captive
PC Card slot space saver
Computer feet
For use with HP Pavilion dv4000 models
For use with Compaq Presario V4000 models
screws, secured by C-clips)
Number
6 Hard drive cover (includes 2 captive screws, secured by C-clips)
Maintenance and Service Guide 3–19
Illustrated Parts Catalog
3.6 Miscellaneous Cable Kit
3–20 Maintenance and Service Guide
Miscellaneous Cable Kit
Spare Part Number Information
Item Description
Miscellaneous Cable Kit
Includes:
1 Modem cable
2 Audio board cable
3 USB board cable
4 Bluetooth module cable
5 LED board cable
Illustrated Parts Catalog
Tabl e 3-5
Spare Part
Number
383468-001
Maintenance and Service Guide 3–21
Illustrated Parts Catalog
3.7 Mass Storage Devices
3–22 Maintenance and Service Guide
Tabl e 3-6
Mass Storage Devices
Spare Part Number Information
Item Description
1 Hard drives (include frame and connector)
Illustrated Parts Catalog
Spare Part
Number
5400 rpm
80-GB
60-GB
2 Optical drives
For use with HP Pavilion dv4000 models
DVD±RW and CD-RW Double Layer Combo Drive
with LightScribe
DVD±RW and CD-RW Double Layer Combo Drive
DVD/CD-RW Combo Drive
DVD-ROM drive
For use with Compaq Presario V4000 models
DVD±RW and CD-RW Double Layer Combo Drive
with LightScribe
DVD±RW and CD-RW Double Layer Combo Drive
DVD/CD-RW Combo Drive
DVD-ROM drive
USB digital drive (not illustrated) 364727-001
383487-001
383485-001
4200-rpm
100-GB
80-GB
60-GB
40-GB
383488-001
383486-001
383484-001
383483-001
396704-001
391743-001
383490-001
396706-001
396705-001
391744-001
384631-001
396707-001
Maintenance and Service Guide 3–23
Illustrated Parts Catalog
3.8 Miscellaneous (Not Illustrated)
Tabl e 3-7
Miscellaneous (Not Illustrated)
Spare Part Information
Spare Part
Description
Power supply, 65 watt 383494-001
Power cords
For use in:
Australia and New Zealand 383496-011
Belgium, Europe, Finland, France, Germany, Greece,
the Netherlands, Norway, Portugal, Spain, and Sweden
Number
383496-021
Canada, French Canada, Latin America, Taiwan, Thailand,
and the United States
Denmark 383496-081
Hong Kong and the United Kingdom 383496-031
Israel 383496-BB1
Italy 383496-061
People’s Republic of China 383496-AA1
Korea 383496-AD1
Switzerland 383496-111
3–24 Maintenance and Service Guide
383496-001
Illustrated Parts Catalog
Tabl e 3-7
Miscellaneous (Not Illustrated)
Spare Part Information
Description
Screw Kits (include the following screws; refer to Appendix C, “Screw Listing,”
for more information on specifications and usage)
■ Phillips PM2.5×8.0 screw
■ Phillips PM2.5×7.0 screw
■ Phillips PM2.5×4.0 screw
■ Phillips PM2.0×16.0 screw
■ Phillips PM2.0×5.0 screw
For use with full-featured HP Pavilion dv4000 models
For use with defeatured HP Pavilion dv4000 models
For use with full-featured Compaq Presario V4000 models
For use with defeatured Compaq Presario V4000 models
All-in-One Media Cable II 375759-001
Audio Y-Cable 2 379452-001
USB travel mouse 309674-001
USB digital drive 364727-001
Wired headset with volume control 371693-001
(Continued)
Spare Part
Number
■ Phillips PM2.0×12.0 spring-loaded
screw
■ Phillips PM2.0×4.0 screw
■ Phillips PM2.0×2.0 screw
■ Phillips PM1.5×4.0 screw
384628-001
385740-001
385741-001
385742-001
Maintenance and Service Guide 3–25
Illustrated Parts Catalog
3.9 Sequential Part Number Listing
Table 3 -8
Sequential Part Number Listing
Spare Part
Number Description
309674-001 USB travel mouse
364727-001 USB digital drive
371693-001 Wired headset with volume control
375759-001 All-in-One Media Cable II
378972-001 802.11b/g WLAN Mini PCI communications module, for use
in most of the world
378973-001 802.11b/g WLAN Mini PCI communications module, for use
in the rest of the world
379452-001 Audio Y-Cable 2
383459-001 Bluetooth module (includes Bluetooth module cable)
383462-001 Defeatured system board
383466-001 Speakers
383467-001 TouchPad cable
383468-001 Miscellaneous Cable Kit
383469-001 Miscellaneous Doors/Covers Kit for use with HP Pavilion
dv4000 models
383471-001 Intel Celeron M 1.50-GHz processor (includes thermal paste)
3–26 Maintenance and Service Guide
Table 3 -8
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
Number Description
383473-001 Intel Pentium M 1.60-GHz processor (includes thermal paste)
383474-001 Intel Pentium M 1.73-GHz processor (includes thermal paste)
383476-001 15.4-inch, WXGA, TFT display assembly, for use with
HP Pavilion dv4000 models (includes display cable, wireless
antenna boards, and antenna cables)
383477-001 15.4-inch, WXGA, TFT display assembly with BrightView for
use with HP Pavilion dv4000 models (includes display cable,
wireless antenna boards, and antenna cables)
383478-001 15.4-inch, WXGA, TFT display assembly for use with
Compaq Presario V4000 models (includes display cable,
wireless antenna boards, and antenna cables)
383479-001 15.4-inch, WXGA, TFT display assembly with BrightView for
use with Compaq Presario V4000 models (includes display
cable, wireless antenna boards, and antenna cables)
383480-001 256-MB memory module
383481-001 512-MB memory module
383482-001 1024-MB memory module
383483-001 4200-rpm 40-GB hard drive (includes frame and connector)
383484-001 4200-rpm 60-GB hard drive (includes frame and connector)
(Continued)
383485-001 5400 rpm, 60-GB hard drive (includes frame and connector)
383486-001 4200-rpm 80-GB hard drive (includes frame and connector)
Maintenance and Service Guide 3–27
Illustrated Parts Catalog
Table 3 -8
Sequential Part Number Listing
Spare Part
Number Description
383487-001 5400 rpm, 80-GB hard drive (includes frame and connector)
383488-001 4200-rpm 100-GB hard drive (includes frame and connector)
383490-001 DVD/CD-RW Combo Drive or use with HP Pavilion dv4000
models
383492-001 12-cell, 8.8-AHr battery pack for use with HP Pavilion dv4000
models
383493-001 6-cell, 4.4-AHr battery pack for use with HP Pavilion dv4000
models
383494-001 65-watt power supply
383495-001 Keyboard for use with HP Pavilion dv4000 models in
the United States
383495-021 Keyboard for use with HP Pavilion dv4000 models in Europe
383495-031 Keyboard for use with HP Pavilion dv4000 models in
the United Kingdom
383495-041 Keyboard for use with HP Pavilion dv4000 models in Germany
383495-051 Keyboard for use with HP Pavilion dv4000 models in France
383495-061 Keyboard for use with HP Pavilion dv4000 models in Italy
(Continued)
383495-071 Keyboard for use with HP Pavilion dv4000 models in Spain
383495-081 Keyboard for use with HP Pavilion dv4000 models in Denmark
3–28 Maintenance and Service Guide
Table 3 -8
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
Number Description
383495-091 Keyboard for use with HP Pavilion dv4000 models in Norway
383495-111 Keyboard for use with HP Pavilion dv4000 models in
Switzerland
383495-121 Keyboard for use with HP Pavilion dv4000 models in
French Canada
383495-131 Keyboard for use with HP Pavilion dv4000 models in Portugal
383495-141 Keyboard for use with HP Pavilion dv4000 models in Turkey
383495-151 Keyboard for use with HP Pavilion dv4000 models in Greece
383495-171 Keyboard for use with HP Pavilion dv4000 models in
Saudi Arabia
383495-181 Keyboard for use with HP Pavilion dv4000 models in Belgium
383495-281 Keyboard for use with HP Pavilion dv4000 models in Thailand
383495-AB1 Keyboard for use with HP Pavilion dv4000 models in Taiwan
383495-AD1 Keyboard for use with HP Pavilion dv4000 models in Korea
383495-B71 Keyboard for use with HP Pavilion dv4000 models in
Sweden/Finland
(Continued)
383495-BB1 Keyboard for use with HP Pavilion dv4000 models in Israel
383496-001 Power cord for use in Canada, French Canada, Latin America,
Taiwan, Thailand, and the United States
Maintenance and Service Guide 3–29
Illustrated Parts Catalog
Table 3 -8
Sequential Part Number Listing
Spare Part
Number Description
383496-011 Power cord for use in Australia and New Zealand
383496-021 Power cord for use in Belgium, Europe, Finland, France,
Germany, Greece, the Netherlands, Norway, Portugal, Spain,
and Sweden
383496-031 Power cord for use in Hong Kong and the United Kingdom
383496-061 Power cord for use in Italy
383496-081 Power cord for use in Denmark
383496-111 Power cord for use in Switzerland
383496-AA1 Power cord for use in People’s Republic of China
383496-AD1 Power cord for use in Korea
383496-BB1 Power cord for use in Israel
384619-001 Switch cover for use with Compaq Presario V4000 models with
wireless capability (includes LED board and LED board cable)
384622-001 Heat sink assembly (includes fan, heat sink, and
thermal paste)
384623-001 Modem board (high-speed 56K, includes modem cable)
(Continued)
384625-001 USB board (includes USB board, USB board frame,
USB board cable, and audio board cable)
384626-001 RTC battery (includes 2-sided tape)
3–30 Maintenance and Service Guide
Table 3 -8
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
Number Description
384627-001 Miscellaneous Doors/Covers Kit for use with Compaq Presario
V4000 models
384628-001 Screw Kit for use with full-featured HP Pavilion dv4000 models
384629-001 Base enclosure for use with full-featured HP Pavilion dv4000
models
384631-001 DVD/CD-RW Combo Drive for use with Compaq Presario
V4000 models
384635-001 Keyboard for use with Compaq Presario V4000 models in
the United States
384635-031 Keyboard for use with Compaq Presario V4000 models in
the United Kingdom
384635-051 Keyboard for use with Compaq Presario V4000 models in
France
384635-061 Keyboard for use with Compaq Presario V4000 models in Italy
384635-071 Keyboard for use with Compaq Presario V4000 models in
Spain
384635-081 Keyboard for use with Compaq Presario V4000 models in
Denmark
384635-091 Keyboard for use with Compaq Presario V4000 models in
Norway
(Continued)
Maintenance and Service Guide 3–31
Illustrated Parts Catalog
Table 3 -8
Sequential Part Number Listing
Spare Part
Number Description
384635-101 Keyboard for use with Compaq Presario V4000 models in
Sweden and Finland
384635-121 Keyboard for use with Compaq Presario V4000 models in
French Canada
384635-331 Keyboard for use with Compaq Presario V4000 models in
the Netherlands
384635-AB1 Keyboard for use with Compaq Presario V4000 models in
Thailand
384635-AD1 Keyboard for use with Compaq Presario V4000 models in
Korea
385739-001 Base enclosure for use with Compaq Presario V4000 models
385740-001 Screw Kit for use with defeatured HP Pavilion dv4000 models
385741-001 Screw Kit for use with full-featured Compaq Presario V4000
models
385742-001 Screw Kit For use with defeatured Compaq Presario V4000
models
389036-001 Intel Celeron M 1.30-GHz processor (includes thermal paste)
390917-001 Base enclosure for use with defeatured HP Pavilion dv4000
models
(Continued)
391737-001 TouchPad board, for use with Compaq Presario V4000 models
3–32 Maintenance and Service Guide
Table 3 -8
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
Number Description
391743-001 DVD±RW and CD-RW Combo Drive (double-layer writing
capability), for use with HP Pavilion dv4000 models
391744-001 DVD±RW and CD-RW Combo Drive (double-layer writing
capability), for use with Compaq Presario V4000 models
393327-001 Intel Pentium M 1.86-GHz processor (includes thermal paste)
396694-001 802.11b/g WLAN Mini PCI communications Broadcomm card,
for use in most of the world
396695-001 802.11b/g WLAN Mini PCI communications Broadcomm card,
for use in the rest of the world
396696-001 Full-featured system board
396697-001 Intel Celeron M 1.40-GHz processor (includes thermal paste)
396698-001 Intel Pentium M 1.60-GHz processor (includes thermal paste)
396699-001 Intel Pentium M 2.00-GHz processor (includes thermal paste)
396700-001 Intel Pentium M 2.13-GHz processor (includes thermal paste)
396704-001 DVD±RW and CD-RW Double Layer Combo Drive with
LightScribe for use with HP Pavilion dv4000 models
396705-001 DVD±RW and CD-RW Double Layer Combo Drive with
LightScribe for use with Compaq Presario V4000 models
(Continued)
396706-001 DVD-ROM drive for use with HP Pavilion dv4000 models
Maintenance and Service Guide 3–33
Illustrated Parts Catalog
Table 3 -8
Sequential Part Number Listing
Spare Part
Number Description
396707-001 DVD-ROM drive for use with Compaq Presario V4000 models
397858-001 Top cover for use with full-featured HP Pavilion dv4000 models
(includes TouchPad)
397859-001 Top cover for use with full-featured Compaq Presario V4000
models (does not include TouchPad)
397860-001 Top cover for use with defeatured HP Pavilion dv4000 models
(includes TouchPad)
397861-001 Top cover for use with defeatured Compaq Presario V4000
models (does not include TouchPad)
397924-001 Wireless antenna for use with HP Pavilion dv4000 models
(includes cable and transceiver)
397925-001 Wireless antenna for use with Compaq Presario V4000 models
(includes cable and transceiver)
398752-001 6-cell, 4.4-Amp hour battery pack
403004-001 Switch cover for use with Compaq Presario V4000 models
without wireless capability (includes LED board and LED board
cable)
403572-01 128-MB memory module
403573-001 256-MB memory module
(Continued)
403737-001 12-cell, 8.8-Amp hour battery pack
3–34 Maintenance and Service Guide
Table 3 -8
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
Number Description
403910-001 Switch cover for use with HP Pavilion v4000 models without
wireless capability (includes LED board and LED board cable)
403911-001 Switch cover for use with HP Pavilion v4000 models with
wireless capability (includes LED board and LED board cable)
403915-001 System board shield for use with HP Pavilion dv4000 models
403918-001 Display Panel Kit (includes display inverter and display cable)
403919-001 Display Plastics Kit for use with HP Pavilion dv4000 models
(includes display bezel and display enclosure)
403920-001 Display Plastics Kit for use with Compaq Presario V4000
models (includes display bezel, display enclosure, and
display hinge covers)
403921-001 Display Hinge Kit for use with HP Pavilion dv4000 models
(includes display hinges and display release hooks)
403922-001 Display Hinge Kit for use with Compaq Presario V4000 models
(includes display hinges and display release loop)
403923-001 Display Screw Kit for use with HP Pavilion dv4000 models
(includes Phillips PM2.5×7.0 screws, Phillips PM2.5×5.0
screws, and rubber screw covers)
(Continued)
403924-001 Display Screw Kit for use with Compaq Presario V4000 models
(includes Phillips PM2.5×7.0 screws, Phillips PM2.5×5.0
screws, and rubber screw covers)
Maintenance and Service Guide 3–35
Illustrated Parts Catalog
Table 3 -8
Sequential Part Number Listing
Spare Part
Number Description
403925-001 Display Label Kit for use with HP Pavilion dv4000 models
403926-001 Display Label Kit for use with Compaq Presario V4000 models
404369-001 Rubber feet for use with HP Pavilion dv4000 models
404576-001 Rubber feet for use with Compaq Presario V4000 models
404803-001 Intel Celeron M 1.60-GHz processor (includes thermal paste)
405019-001 Top cover for use with defeatured HP Pavilion dv4000 models
(includes TouchPad)
(Continued)
3–36 Maintenance and Service Guide
Removal and Replacement
This chapter provides essential information for proper and
safe removal and replacement service.
4.1 Tools Required
You will need the following tools to complete the removal and
replacement procedures:
■ Magnetic screwdriver
■ Phillips P0 screwdriver
■ Flat-bladed screwdriver
■ Tool kit—includes connector removal tool, loopback plugs,
and case utility tool
4
Preliminaries
Maintenance and Service Guide 4–1
Removal and Replacement Preliminaries
4.2 Service Considerations
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 computer, place
✎
the subassembly (and all accompanying screws) away from
the work area to prevent damage.
Plastic Parts
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 computer, ensure that cables are
Ä
placed in their proper locations during the reassembly process.
Improper cable placement can damage the computer.
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.
4–2 Maintenance and Service Guide
Removal and Replacement Preliminaries
4.3 Preventing Damage to Removable Drives
Removable drives are fragile components that must be handled
with care. To prevent damage to the computer, damage to a
removable drive, or loss of information, observe the following
precautions:
■ Before removing or inserting a hard drive, shut down the
computer. If you are unsure whether the computer is off or
in hibernation, turn the computer 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 Guide 4–3
Removal and Replacement Preliminaries
4.4 Preventing 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.
4–4 Maintenance and Service Guide
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