Dell LATITUDE D400 User Manual

Dell™ latitude™ d400 service manual

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Dell™ Latitude™ D400 Service Manual

Before You Begin

Preparing to Work Inside the Computer

Recommended Tools

Computer Orientation

Screw Identification

Using the Dell Diagnostics

When to Use the Dell Diagnostics

Features of the Dell Diagnostics

Starting the Dell Diagnostics

System Components


Removing the Keyboard

Installing the Keyboard


Installing a Memory Module Under the Memory
Module/Modem Cover

Installing a Memory Module Under the Keyboard

Mini PCI Card


Hard Drive

Removing the Hard Drive

Installing the Hard Drive

Removing the Interposer

Replacing the Interposer

Docking Doors

Removing the Docking Doors

Installing the Docking Doors



Removing the Display Assembly

Replacing the Display Latch

Palm Rest

Cooling Fan

Touch Pad

System Board

Removing the System Board

Replacing the System Board

Reserve Battery

Flashing the BIOS


Battery Latch

Pin Assignments for I/O Connectors

USB Connector

Video Connector

Serial Connector

Dell D/Bay Connector

Mini Recommended Spares List

Notes, Notices, and Cautions

Information in this document is subject to change without notice.
© 2003 Dell Inc. All rights reserved.

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft Corporation; Bluetooth is a
trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.

Model PPT

October 2003     Rev. A02


A NOTE indicates important information that helps you make better use of your computer.


A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.


A CAUTION indicates a potential for property damage, personal injury, or death.