HP Compaq nw9440 - Mobile Workstation Manual

Maintenance and Service
Guide
HP Compaq nw9440 Notebook PC
HP Compaq nx9420 Notebook PC
Document Part Number: 412725-003
May 2007
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 2006, 2007 Hewlett-Packard Development Company, L.P.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation. Intel is a trademark or registered trademark 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 Compaq nw9440 Notebook PC
HP Compaq nx9420 Notebook PC
Third Edition: May 2007
First Edition: March 2006
Document Part Number: 412725-003

Maintenance and Service Guide i
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. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–22
2Troubleshooting
2.1 Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Computer Setup Defaults . . . . . . . . . . . . . . . . . . . . . 2–3
Computer Setup Menus. . . . . . . . . . . . . . . . . . . . . . . 2–4
2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . 2–10
3 Illustrated Parts Catalog
3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 Computer Major Components. . . . . . . . . . . . . . . . . . 3–2
3.3 Display Assembly Components . . . . . . . . . . . . . . . 3–16
3.4 Plastics Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–18
3.5 Cable Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19
3.6 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–20
3.7 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3–21
3.8 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–24

ii Maintenance and Service Guide
Contents
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
5 Removal and Replacement Procedures
5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . 5–2
5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–4
5.4 Hard Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6
5.5 Computer Feet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–10
5.6 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11
5.7 External Memory Module . . . . . . . . . . . . . . . . . . . . 5–12
5.8 Mini Card Module. . . . . . . . . . . . . . . . . . . . . . . . . . 5–14
5.9 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–17
5.10 Optical Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–18
5.11 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20
5.12 Internal Memory Module . . . . . . . . . . . . . . . . . . . 5–24
5.13 TouchPad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–26
5.14 Modem Module. . . . . . . . . . . . . . . . . . . . . . . . . . . 5–30
5.15 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–32
5.16 LED Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–34
5.17 Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–35
5.18 Processor Heat Sink . . . . . . . . . . . . . . . . . . . . . . . 5–36
5.19 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–38
5.20 Video Board Heat Sink . . . . . . . . . . . . . . . . . . . . . 5–40
5.21 Video Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–44
5.22 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–46

Contents
Maintenance and Service Guide iii
5.23 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–63
5.24 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–66
5.25 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–68
5.26 USB/Audio Board . . . . . . . . . . . . . . . . . . . . . . . . . 5–75
5.27 PC Card/Smart Card Assembly. . . . . . . . . . . . . . . 5–78
6 Specifications
A ScrewListing
B Software Backup and Recovery
C Display Component Recycling
D Connector Pin Assignments
E Power Cord Set Requirements
Index

iv Maintenance and Service Guide
Contents

Maintenance and Service Guide 1–1
1
Product Description
The HP Compaq nw9440 Notebook PC and HP Compaq nx9420
Notebook PC offer advanced modularity, Intel® Core Duo
processors, and extensive multimedia support.
HP Compaq nw9440 Notebook PC and HP Compaq nx9420
Notebook PC

1–2 Maintenance and Service Guide
Product Description
1.1 Features
■The following processors, varying by computer model:
❏Intel Core Duo T2600 (2.17-GHz)
❏Intel Core Duo T2500 (2.00-GHz)
❏Intel Core Duo T2400 (1.83-GHz)
❏Intel Core Duo T2300 (1.66-GHz)
■The following displays are available, varying by
computer model:
❏17.0-inch, WUXGA+WVA, TFT (1920 × 1200) with over
16.8 million colors with AntiGlare
❏17.0-inch, WSXGA+WVA, TFT (1680 × 1050) with over
16.8 million colors with AntiGlare
❏17.0-inch, WXGA+WVA, TFT (1440 × 900) with over
16.8 million colors with AntiGlare
❏17.0-inch, WSXGA+WVA, TFT (1680 × 1050) with over
16.8 million colors with BrightView
■100-, 80-, and 60-GB high-capacity hard drive, varying by
computer model
■256-MB DDR2 synchronous DRAM (SDRAM) at 533 MHz
and 667 MHz, expandable to 4.0 GB
■Microsoft® Windows® XP Professional
■Full-size Windows keyboard with numeric keypad
■TouchPad and pointing stick pointing devices, including
a dedicated vertical scroll region (select models only)
■Integrated 10 Base-T/100 Base-TX Ethernet local area
network (LAN) network interface card (NIC) with RJ-45 jack
■Integrated high-speed 56K modem with RJ-11 jack

Product Description
Maintenance and Service Guide 1–3
■Integrated wireless support for Mini Card IEEE 802.11a/b/g
or 802.11b/g Wireless LAN (WLAN) device
■Support for one Type I or Type II PC Card slot, with support
for both 32-bit (CardBus) and 16-bit PC Cards, varying by
computer model
■External 120- and 90-watt AC adapters with 3-wire power
cord, varying by computer model
■8-cell Li-Ion battery pack
■Stereo speakers
■Volume up, volume mute, and volume down buttons
■Support for the following optical drives:
❏DVD±RW and CD-RW Combo Drive
❏DVD/CD-RW Combo Drive
❏DVD-ROM drive
■Connectors:
❏Audio-out (headphone)
❏Audio-in (microphone)
❏Four Universal Serial Bus (USB) v. 2.0
❏SmartPower
❏External monitor
❏RJ-11 (modem)
❏RJ-45 (network)
❏IEEE 1394
❏Accessory battery
❏Digital Media Slot
❏Parallel port
❏S-Video-out
❏Docking connector

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 clear the password. These steps also
clear CMOS:
1. Prepare the computer for disassembly (refer to Section 5.3,
“Preparing the Computer for Disassembly,” for more
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 5.9, “RTC Battery,” for more information on
removing and replacing the RTC battery).
3. Wait approximately 5 minutes.
4. Replace the RTC battery and reassemble the computer.
5. Connect AC power to the computer. Do not reinsert any
battery packs at this time.
6. Turn on the computer.
All passwords and all CMOS settings have been cleared.

Product Description
Maintenance and Service Guide 1–5
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

1–6 Maintenance and Service Guide
Product Description
1.4 External Components
The external components on the front of the computer are shown
below and described in Table 1-1.
Front Components
Table 1-1
Front Components
Item Component Function
1 Wireless light On: An integrated wireless device, such as
a wireless local area network (LAN) device
and/or a Bluetooth® device, is turned on.
2Powerlight ■On: The computer is on.
■Blinking: The computer is in standby.
■Blinking rapidly: An AC adapter with a
higher power rating should be
connected.
■Off: The computer is off or in hibernation.

Product Description
Maintenance and Service Guide 1–7
3 Battery light ■Amber: A battery pack is charging.
■Green: A battery pack is close to full
charge capacity.
■Blinking amber: A battery pack that is the
only available power source has reached
a low-battery condition. When the battery
reaches a critical low-battery condition,
the battery light begins blinking more
quickly.
■Off: If the computer is connected to an
external power source, the light is turned
off when all batteries in the computer are
fully charged. If the computer is not
connected to an external power source,
the light is turned off until the battery
reaches a low-battery condition.
4 Drive light Blinking: The hard drive or optical drive is
being accessed.
5 Display release latch Opens the computer.
6 Stereo speakers (2) Produce stereo sound.
7 Digital Media Slot Supports 7 optional digital memory card
formats: SD (Secure Digital) Memory Card,
MultiMediaCard, Memory Stick, Memory
Stick Pro, Memory Stick Duo (with adapter),
SmartMedia, and xD-Picture Card.
Table 1-1
Front Components
(Continued)
Item Component Function

1–8 Maintenance and Service Guide
Product Description
The external components on the right side of the computer are
shown below and described in Table 1-2.
Right-Side Components

Product Description
Maintenance and Service Guide 1–9
Table 1-2
Right-Side Components
Item Component Function
1Audio-out
(headphone) jack
Connect optional headphones or powered
stereo speakers. Also connects the audio
function of an audio/video device such as
a television or VCR.
2Audio-in
(microphone) jack
Connects an optional monaural
microphone.
3 USB ports (2) Connect USB 1.1- and 2.0-compliant
devices to the computer using a standard
USB cable, or connect an optional External
MultiBay II to the computer. The MultiBay II
must also be connected to an external
power source.
4 Optical drive Supports an optical disc. The type of optical
drive varies by model.
5 RJ-45 (network) jack Connects an optional network cable.

1–10 Maintenance and Service Guide
Product Description
The external components on the left side of the computer are
shown below and described in Table 1-3.
Left-Side Components
Table 1-3
Left-Side Components
Item Component Function
1 Exhaust vent Provides airflow to cool internal
components.
ÄTo prevent overheating, do not
obstruct vents. Do not allow a hard
surface, such as a printer, or a soft
surface, such as pillows, thick rugs,
or clothing, to block airflow.
2 Smart Adaptor power
connector
Connects an AC adapter or an optional
power adapter.
3 External monitor port Connects an optional VGA external monitor
or projector.
4 S-Video-out jack Connects an optional S-Video device, such
as a television, VCR, camcorder, projector,
or video capture card.
5 USB ports (2) Connect USB 1.1- and 2.0-compliant
devices to the computer using a standard
USB cable, or connect an optional External
MultiBay II to the computer. The MultiBay II
must also be connected to an external
power source.

Product Description
Maintenance and Service Guide 1–11
6 1394 port Connects an optional 1394a device such
as a scanner, digital camera, or digital
camcorder.
7 Smart card slot Supports optional smart cards.
8 PC Card slot Supports optional Type I, Type II, or
Type III 32-bit (CardBus) or 16-bit
PC Cards.
Table 1-3
Left-Side Components
(Continued)
Item Component Function

1–12 Maintenance and Service Guide
Product Description
The external components on the rear panel of the computer are
shown below and described in Table 1-4.
Rear Panel Components

Product Description
Maintenance and Service Guide 1–13
Table 1-4
Rear Panel Components
Item Component Function
1 Security cable slot Attaches an optional security cable to the
computer.
ÄSecurity solutions are designed to
act as deterrents. These deterrents
may not prevent a product from
being mishandled or stolen.
2 Battery bay Holds a battery pack.
3 Exhaust vent Provides airflow to cool internal
components.
ÄTo prevent overheating, do not
obstruct vents. Do not allow a hard
surface, such as a printer, or a soft
surface, such as pillows, thick rugs,
or clothing, to block airflow.
4 RJ-11 (modem) jack Connects the modem cable.

1–14 Maintenance and Service Guide
Product Description
The standard keyboard components of the computer are shown
below and described in Table 1-5.
Standard Keyboard Components