Compaq Contura 400 User Manual

Notice
The information in this guide is subject to change without notice.
Compaq Computer Corporation shall not be liable for technical or editorial
errors or omissions contained herein; nor for incidental or consequential
damages resulting from the furnishing, performance, or use of this
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This guide contains information protected by copyright. No part of this
guide may be photocopied or reproduced in any form without prior written
consent from Compaq Computer Corporation.
Copyright 1994, 1995 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Deskpro, LTE, Contura, Presario, ProLinea
Registered U. S. Patent and Trademark Office.
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MAINTENANCE AND SERVICE GUIDE
COMPAQ CONTURA 400 FAMILY OF PERSONAL COMPUTERS
Second Edition (June 1995)
First Edition (September 1994)
Part Number 147951-002

Compaq Contura 400 Specifications

General

Manufacturer	Compaq
Model	Contura 400
Category	Laptop
RAM	4MB (expandable to 20MB)
Operating System	MS-DOS, Windows 3.1
Battery	NiMH
Hard Drive	120 MB or 240 MB
Display	9.5-inch TFT
Display Resolution	640x480
Graphics	VGA
Ports	Serial, Parallel, VGA

Summary

Notice

Preface

Chapter 1. Illustrated Parts Catalog

System Unit Module Overview

Details the components within the main computer unit, including upgradable parts and major components.

Display Assembly Overview

Describes the display assembly and its replaceable components like bezel, latches, and LCD panel.

Keyboards and Cables

Details various notebook keyboards and cable types for different models.

AC Adapter, Memory, and Power Components

Specifications and parts for AC adapters, power cords, and memory expansion boards.

Documentation and Software Listings

Lists available user manuals, software guides, and reference materials.

Chapter 2. Preparing the Computer for Service

Electrostatic Discharge (ESD) Precautions

Essential information on preventing damage from static electricity during service.

Service Preliminaries and Password Clearing

General steps before service, including power disconnection and clearing the power-on password.

Chapter 3. Removal and Replacement Procedures

Preparing the Computer for Component Removal

Steps to safely disconnect power and remove components before disassembly.

System Unit Component Procedures

Detailed steps for removing and replacing hard drives, memory, and keyboards.

Display Assembly Procedures

Procedures for removing and replacing display components like bezel, latches, and panels.

Docking Base Components and Monitor Support

Procedures for replacing parts of the docking base and monitor support.

Chapter 4. Running POST and Test

Preliminary Steps for Diagnostics

Essential steps to perform before running POST or Computer Checkup.

Power-On Self-Test (POST) Execution

Guidance on running the Power-On Self-Test for system diagnostics.

Computer Checkup (TEST) Procedures

Steps to run the Computer Checkup diagnostic tool for hardware verification.

Chapter 5. Error Messages and Codes

Power-On Self-Test (POST) Error Messages

Lists POST error messages, probable causes, and recommended actions.

Computer Checkup (TEST) Error Codes

Lists Computer Checkup error codes and recommended solutions for diagnosis.

Troubleshooting Without Error Messages

Guides for diagnosing problems without system error messages.

Chapter 6. Specifications

Computer and Display Specifications

Physical, environmental, and performance specs for computers and displays.

Storage and Battery Specifications

Technical specifications for hard drives, diskette drives, and battery packs.

AC Adapter and Docking Base Specifications

Technical specifications for AC adapters and docking bases.