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Texas Instruments Extensa 450 Series User Manual

Texas Instruments Extensa 450 Series
100 pages
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Maintenance Manual
Extensa
tm
450 Series
Notebook Computers
9805725-0001
November 1995

Table of Contents

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Texas Instruments Extensa 450 Series Specifications

General IconGeneral
BrandTexas Instruments
ModelExtensa 450 Series
CategoryLaptop
LanguageEnglish

Summary

Section 1 General Description

1.4 Product Overview

Key features and specifications of the notebook.

1.6 Notebook Assemblies and Subassemblies

Overview of modular components and their layout.

1.7 Extensa 450 Series Notebook Specifications

Detailed technical specifications for the Extensa 450 series.

1.8 Agency Approvals

List of product certifications and standards met.

Section 2 Installation

2.2 Unpacking Instructions

Step-by-step guide for safely unpacking the notebook.

2.3 Installing Notebook Options

Guide for installing internal hardware components.

2.5 Installing External Devices

Instructions for connecting external peripherals.

2.8 Configuring the System

Initial system setup and configuration steps.

Section 3 Operating Instructions

3.2 Notebook Controls and Indicators

Identification of buttons, LEDs, and system controls.

3.3 Operating Procedures

Common operational tasks and procedures.

3.3.5 Minimizing Power Usage

Tips and actions for extending battery life.

3.3.8 Rebuilding the System Software

Process for rebuilding the system software structure.

Section 4 Theory of Operation

4.2 Notebook Functional Description

Overview of major computer subsystems and their functions.

4.2.1 Processor/Memory Subsystems

Details on CPU, memory components, and chipsets.

4.2.4 Hard Disk Subsystem

Description of the hard disk drive and controller.

4.2.7 Power Subsystem

Overview of the power management system and components.

Section 5 Troubleshooting Procedures

5.2 Overview of Fault Isolation Process

Steps for diagnosing and isolating system issues.

5.3 Troubleshooting Procedures

Specific problem-solving steps for common issues.

5.3.1 Troubleshooting a Power Supply Problem

Steps for diagnosing and resolving power supply issues.

5.3.5 Fault Isolation Using Diagnostics

Using PC-Doctor for system diagnostics and analysis.

Section 6 Field Service

6.2 Preventive Maintenance

Routine maintenance tasks for the computer.

6.4 Notebook Field-Replaceable Parts and Assemblies

Identification of field-replaceable units (FRUs).

6.5 Notebook Subassembly Removal and Replacement Procedures

Detailed steps for replacing major subassemblies.

6.5.4 Removing/Replacing the Hard Drive

Procedure for removing and replacing the hard drive.

6.5.16 Removing/Replacing the Main Board

Procedure for removing and replacing the main system board.

Appendix A Self-Test Error Messages

A.1 Introduction

Introduction to self-test error messages.

Appendix B Connector Pinouts

B.1 Introduction

Introduction to connector pinout data.

Appendix C PC-Doctor Diagnostics

C.1 Introduction

Overview of the PC-Doctor diagnostics tool.

C.5 PC-Doctor Menus

Available menus and options within PC-Doctor.

C.5.2 Diagnostics

Running non-destructive system tests with PC-Doctor.

C.5.4 Hardware Info Menu

Displaying system hardware configuration data.

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