Preface

Introduction

This manual provides installation, operation and servicing data for the
Extensa 51x Series Notebook Computers.

Intended Audience

This manual is primarily intended for use by qualified service technicians
but contains information useful to non-technical users.

Contents

This manual contains six sections and multiple reference appendices
including:
Section 1: General Description — Introduces the main features of the
notebook family; provides a list of physical and electrical specifications.
Section 2: Installation — Describes how to unpack, install options and
cable up the notebook computer in a desktop environment.
Section 3: Operating Instructions — Describes the notebook
operating controls and indicators and modes of operation.
Section 4: Theory of Operation — Describes detailed theory of
operation for Extensa Series notebooks.
Section 5: Troubleshooting Provides troubleshooting procedures for
the Extensa 51x Series notebooks.
Section 6: Field Service — Provides corrective maintenance
procedures for the notebook computer.
Appendix A: Self Test Error Messages
Appendix B: PC-Doctor Reference Data
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