HP Compaq Presario Manual

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

Maintenance and Service Guide iii
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

iv Maintenance and Service Guide
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

Contents
Maintenance and Service Guide v
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

vi Maintenance and Service Guide
Contents
6 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
C Screw Listing
D Display Component Recycling
Index

Maintenance and Service Guide 1–1
1
Product Description
The HP Pavilion dv4000 Notebook PC 1and Compaq
Presario V4000 Notebook PC 2offer advanced modularity,
Intel® Pentium® M and Celeron® M processors, and extensive
multimedia support.
HP Pavilion dv4000 Notebook PC and Compaq Presario V4000
Notebook PC

1–2 Maintenance and Service Guide
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

Product Description
Maintenance and Service Guide 1–3
✎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)

1–4 Maintenance and Service Guide
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.