HP Compaq NC4400 Manuel

Maintenance and Service

Guide

HP Compaq nc4400 Notebook PC

Document Part Number: 383207-002

May 2006

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.

Microsoft and Windows are U.S. registered trademarks of Microsoft

Corporation. Intel, Celeron, and Core 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 Compaq nc4400 Notebook PC

Second Edition: May 2006

First Edition: March 2005

Document Part Number: 383207-002

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. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–20

2 Troubleshooting

2.1 Computer Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1

Using Computer Setup . . . . . . . . . . . . . . . . . . . . . . . 2–1

Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2–2

Selecting from the Security Menu . . . . . . . . . . . . . . 2–3

Selecting from the Diagnostics Menu. . . . . . . . . . . . 2–4

Selecting from the System Configuration Menu. . . . 2–5

2.2 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . 2–6

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 Components . . . . . . . . . . . . . . . 3–11

3.4 Plastics Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13

3.5 Cable Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–14

3.6 Miscellaneous (Not Illustrated). . . . . . . . . . . . . . . . 3–15

3.7 Sequential Part Number Listing . . . . . . . . . . . . . . . 3–17

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 Bluetooth Module . . . . . . . . . . . . . . . . . . . . . . . . . . 5–12

5.7 External Memory Module . . . . . . . . . . . . . . . . . . . . 5–14

5.8 Keyboard Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–17

5.9 Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20

5.10 Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–24

5.11 Heat Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–25

5.12 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–28

5.13 Internal Memory Module . . . . . . . . . . . . . . . . . . . 5–30

5.14 Mini Card WLAN Module . . . . . . . . . . . . . . . . . . 5–32

5.15 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–34

5.16 Button Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–48

5.17 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–51

5.18 TouchPad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–55

5.19 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–59

5.20 Infrared Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–61

5.21 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–63

5.22 Modem Module. . . . . . . . . . . . . . . . . . . . . . . . . . . 5–68

5.23 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–70

vi Maintenance and Service Guide

Contents

6 Specifications

A Screw Listing

B Software Backup and Recovery

C Display Component Recycling

D Connector Pin Assignments

E Power Cord Set Requirements

Index

Maintenance and Service Guide 1–1

Product Description

The HP Compaq nc4400 Notebook PC offers advanced

modularity, Intel® Core™ Duo and Celeron® M processors, and

extensive multimedia support.

HP Compaq nc4400 Notebook PC

1–2 Maintenance and Service Guide

Product Description

1.1 Features

■Intel Core Duo T2600 (2.17-GHz), T2500 (2.00-GHz),

T2400 (1.83-GHz), and T2300 (1.67-GHz) or Intel

Celeron M 1.60-GHz processors, varying by computer model

■12.1-inch, XGA, TFT (1024 × 768) display with over

16.8 million colors

■100-, 80-, or 60-GB high-capacity hard drive, varying by

computer model

■256-MB DDR2 synchronous DRAM (SDRAM) at 633 MHz

and 533 MHz, expandable to 4.0 GB

■Microsoft® Windows® XP Home Edition or Windows XP

Professional, varying by computer model

■Full-size Windows keyboard with embedded numeric keypad

■TouchPad and pointing stick pointing devices, including a

dedicated vertical scroll region

■Integrated 10Base-T/100Base-T/1000Base-T 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 Card 802.11b/g and

802.11a/b/g 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

Product Description

Maintenance and Service Guide 1–3

■External 65-watt AC adapter with 3-wire power cord

■6-cell Li-Ion battery pack

■Audio speaker

■Volume up, volume mute, and volume down buttons

■Connectors:

❏Infrared

❏Audio-out (headphone)

❏Audio-in (microphone)

❏Universal Serial Bus (USB) v. 2.0 (3 ports, 1 powered)

❏Smart adapter power

❏External monitor

❏RJ-45 (network)

❏RJ-11 (modem)

❏S-Video-out

❏PC Card

❏Digital Media Slot

❏Primary battery pack

❏Accessory battery pack

❏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 the steps below to reset the password. These steps also

clear CMOS.

✎The following steps will not clear an unknown password if the

stringent security option has been enabled in the BIOS. If

stringent security is enabled, the system board must be replaced

to reset an unknown password. Refer to Section 5.21, “System

Board,” for more information on replacing the system board.

Before replacing the system board, perform the steps below to

be sure that stringent security has been properly enabled.

Enabling stringent security provides enhanced prtotection for the

power-on password and administrator password and other forms

of power-on authorization. Stringent security is enabled/disabled

by accessing the Password Options menu in the Computer Setup

utility. Refer to Section 2.1, “Computer Setup,” for more

information.

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 5.23, “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.

Autres manuels pour Compaq NC4400

Ce manuel convient aux modèles suivants

Table des matières

Autres manuels HP Ordinateur portable

HP Compaq Presario CQ61 Manuel

HP ProBook 6455b Manuel

HP Compaq Presario Manuel utilisateur

HP 2230s - Compaq Business Notebook Manuel

HP Compaq Presario,Presario 650 Manuel utilisateur

HP 6830s - Compaq Business Notebook Manuel utilisateur

HP 4310s - ProBook - Core 2 Duo 2.1 GHz Manuel utilisateur

HP Pavilion Power 15 Instructions de montage

HP 14s Manuel

HP Pavilion DV1010 Instructions de montage

HP HP 241 G1 Notebook PC Manuel

HP Tx1205us - Pavilion - Turion 64 X2 1.8 GHz Instructions d'utilisation et d'installation

HP 2133 Mini-Note Manuel

HP F2974KT - OmniBook 500 - PIII 700 MHz Manuel utilisateur

HP KR922UT - 2133 Mini-Note - C7-M 1 GHz Manuel

HP EliteBook 8770w Manuel

HP Pavilion dv6500 - Entertainment Notebook PC Manuel

HP Invent Compaq Series Manuel utilisateur

HP Pro c645 Chromebook Manuel

HP EliteBook Revolve 810 G2 Tablet Manuel utilisateur

HP Pavilion DV9500 Manuel

HP Pavilion DV1000t Instructions de montage

HP OmniBook XT1000 Mode d’emploi

HP Presario CQ42-100 - Notebook PC Manuel utilisateur

Manuels Ordinateur portable populaires d'autres marques

Velocity

Velocity NoteMagix M10 Manuel utilisateur

Dell

Dell Alienware 17 R2 Manuel utilisateur

Toshiba

Toshiba A105-S2236 Manuel utilisateur

Winbook

Winbook LM Manuel utilisateur

Dell

Dell Inspiron 1464 Manuel utilisateur

Dell

Dell Inspiron 15R 5537 Manuel utilisateur

Dell

Dell Latitude ATG D620 Manuel utilisateur

Sony

Sony VAIO PCG-FX270 Manuel utilisateur

Dell

Dell Latitude 7310 Manuel utilisateur

Dell

Dell Precision GU806 Manuel utilisateur

Sony

Sony VAIO PCG-R505JLK Manuel utilisateur

Lenovo

Lenovo THINKPAD X32 Manuel utilisateur

Toshiba

Toshiba mini NB300 Manuel utilisateur

Lenovo

Lenovo ThinkPad X201 Tablet Manuel

Lenovo

Lenovo THINKPAD X31 Manuel

Sony

Sony VGN-T240P VAIO Manuel utilisateur

Compaq

Compaq Armada E700 Series Manuel utilisateur

Fujitsu

Fujitsu Lifebook A6230 Manuel utilisateur