Acer Extensa 450 Service Manual

Maintenance Manual

Extensa

450 Series

Notebook Computers

9805725-0001

November 1995

Extensa 450 Series Notebook Computers

Maintenance Manual

TI Part No. 9805725-0001

Original Issue: November 1995

Changes may be made periodically to the information in this publication. Such changes will be incorporated in new editions of this manual.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopy, recording, or otherwise, without the prior written permission of Texas Instruments Incorporated.

The equipment, as well as the programs that TI has created to use with them, are tools that can help people better manage the information used in their business; but too ls — i nc luding TI products — cann o t replace sound judgement nor make the manager’s busi ness decisions .

Consequently, TI cannot warrant that its products are suitable for any specific customer application. The manager must rely on judgement of what is best for his or her business.

Address all correspondence regarding orders to:

Texas Instruments Incorporated

P.O. Box 6102, M/S 3255

Temple, Texas 76503

Extensa 450, TravelMate, 5000, 4000M, 4000E, 4000 and BatteryPro are trademarks of Texas Instruments Incorporated. The icons in the Windows Notebook and Startup groups are copyrighted by Texas Instru ments Incorporated. BitCom and BitFax are trademarks of BIT Software, Inc. Hayes is a registered trademark and SmartModem2400 is a trademar k of Hayes Mi croComputer Pro du c ts Inc. IBM, OS/2, AT PS/2, and VGA are trademarks of International Business Machines Corporation. Intel, and IntelDX4 are trademarks of Intel Corporation Lotus is a trademark of Lotus Development Corporation MNP is a registered trademark and Microcom is trademark of Microcom Inc. Microsoft and Windows 95 are trade marks of Microsoft Corporation. Ethernet is a registered trademark of Xerox Corporation. NetWare is a registered trademark of Novell, Inc. UNIX is a registered trademark of American Telephone and Telegr aph. SimulSCAN is a trademark of Cirrus Logic, Inc.

Preface Section 1 General Description

1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 Product Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.3 International Product Versions. . . . . . . . . . . . . . . . . . . . . . 1-2

1.4 Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.4.1 External Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.4.2 Touchpad Pointing Device . . . . . . . . . . . . . . . . . . . . . 1-6

1.4.3 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

1.4.4 Standard Power Features. . . . . . . . . . . . . . . . . . . . . . 1-8

1.4.5 Wireless Connection With Serial Infrared Port . . . . . . 1-9

1.4.6 Preloaded Software . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

1.4.7 Notebook Expansion Capabilities. . . . . . . . . . . . . . . . 1-9

1.5 Standard Test Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

1.6 Notebook Assemblies and Subassemblies. . . . . . . . . . . . . . 1-10

1.6.1 Cover-Display Assembly . . . . . . . . . . . . . . . . . . . . . . 1-11

1.6.2 System Base Assembly . . . . . . . . . . . . . . . . . . . . . . . 1-11

1.7 Extensa 450 Series Notebook Specifications. . . . . . . . . . . . 1-12

1.8 Agency Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Section 2 Installation

2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.3 Installing Notebook Options . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.3.1 Installing Dual Inline Memory Module(s) . . . . . . . . . . 2-1

2.3.2 Installing PCMCIA Options. . . . . . . . . . . . . . . . . . . . . 2-3

2.3.3 Installing the Port Adapter . . . . . . . . . . . . . . . . . . . . 2-4

2.3.4 Installing the Optional Numeric Keypad . . . . . . . . . . 2-5

2.4 Installing the Battery Pack(s ) . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.5 Installing External Devices . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Contents iii

2.5.1 Installing an External Keyboard/Mouse . . . . . . . . . . . 2-6

2.5.2 Installing External Parallel Printer . . . . . . . . . . . . . . . 2-8

2.5.3 Installing External Serial Port Device . . . . . . . . . . . . . 2-8

2.5.4 Installing External VGA Monitor . . . . . . . . . . . . . . . . . 2-10

2.5.5 Installing SIR Devices . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

2.6 Installing the AC Power Adapter . . . . . . . . . . . . . . . . . . . . 2-11

2.7 Initial System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

2.8 Configuring the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

2.9 Making Backups of System Software. . . . . . . . . . . . . . . . . . 2-13

2.10 Loading Application Software . . . . . . . . . . . . . . . . . . . . . . 2-13

Section 3 Operating Instructions

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 Notebook Controls and Indicators . . . . . . . . . . . . . . . . . . . . 3-1

3.2.1 LCD Brightness Control . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.2.2 Button Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.2.3 Cover Release Latch . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.2.4 Touch Pad Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.2.5 Keyboard Mode LEDs. . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.3 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.3.1 Floppy Drive Operating Procedures . . . . . . . . . . . . . . 3-4

3.3.2 Installing/Removing PCMCIA Options . . . . . . . . . . . . 3-4

3.3.3 Computer Hot Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3.3.4 Responding to Low Battery Conditions. . . . . . . . . . . . 3-5

3.3.5 Minimizing Power Usage . . . . . . . . . . . . . . . . . . . . . . 3-5

3.3.6 Recharging the Battery Packs . . . . . . . . . . . . . . . . . . 3-6

3.3.7 Restoring Missing System Files . . . . . . . . . . . . . . . . . 3-6

3.3.8 Rebuilding the System Software. . . . . . . . . . . . . . . . . 3-6

Section 4 Theory of Operation

iv Contents

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2 Notebook Functional Description . . . . . . . . . . . . . . . . . . . . 4-1

4.2.1 Processor/Memory Subsystems . . . . . . . . . . . . . . . . 4-1

4.2.2 I/O Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

4.2.3 Video Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

4.2.4 Hard Disk Subsystem . . . . . . . . . . . . . . . . . . . . . . . . 4-8

4.2.5 Floppy Diskette Drive Subsystem. . . . . . . . . . . . . . . . 4-9

4.2.6 PCMCIA Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

4.2.7 Power Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Section 5 Troubleshooting Procedures

5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 Overview of Fault Isolation Process . . . . . . . . . . . . . . . . . . 5-1

5.3 Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . . . . 5-3

5.3.1 Troubleshooting a Power Supply Problem . . . . . . . . . 5-3

5.3.2 Troubleshooting a Display Problem . . . . . . . . . . . . . . 5-5

5.3.3 Fault Isolation Using Selftest . . . . . . . . . . . . . . . . . . . 5-5

5.3.4 PCMCIA Modem Problems. . . . . . . . . . . . . . . . . . . . . . 5-5

5.3.5 Fault Isolation Using Diagnostics . . . . . . . . . . . . . . . . 5-6

Section 6 Field Service

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2.1 Cleaning the Computer . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2.2 Protecting the Disk Drives . . . . . . . . . . . . . . . . . . . . . 6-2

6.2.3 Handling the Computer Battery Pack. . . . . . . . . . . . . 6-2

6.2.4 Restoring System Software. . . . . . . . . . . . . . . . . . . . . 6-2

6.3 Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . 6-3

6.4 Notebook Field-Replaceable Parts and Assemblies. . . . . . . . 6-3

6.4.1 Cover-Display Assembly . . . . . . . . . . . . . . . . . . . . . . 6-3

6.4.2 System Base Assembly . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.5 FRU Removal and Replacement Procedures . . . . . . . . . . . . 6-6

6.5.1 Removing/Replacing the Notebook Battery Pack. . . . . 6-6

6.5.2 Removing/Replacing PCMCIA Options . . . . . . . . . . . . 6-7

6.5.3 Removing/Replacing the Floppy Drive . . . . . . . . . . . . 6-7

6.5.4 Removing/Replacing the Hard Drive . . . . . . . . . . . . . 6-7

6.5.5 Removing/Replacing the Keyboard Assembly . . . . . . . 6-8

6.5.6 Removing/Replacing the Heat Sink . . . . . . . . . . . . . . 6-8

6.5.7 Removing/Replacing Memory Modules (DIMMS) . . . . 6-9

6.5.8 Removing and Replacing the Cover-Display Assembly 6-10

Contents v

6.5.9 Removing and Replacing the Inverter Board. . . . . . . . 6-10

6.5.10 Opening/Replacing the Top Case Assembly . . . . . . . 6-11

6.5.11 Removing/Replacing the Touch Pad Assembly . . . . . 6-11

6.5.12 Removing/Replacing the SIR Board . . . . . . . . . . . . . 6-13

6.5.13 Removing/Replacing the Primary Battery Board . . . 6-14

6.5.14 Removing/Replacing Power Supply Board . . . . . . . . 6-15

6.5.15 Removing/Replacing the Memory Board . . . . . . . . . 6-16

6.5.16 Removing/Replacing the Main Board. . . . . . . . . . . . 6-16

6.5.17 Removing/Replacing th e Secondary Battery Board . 6-18

Appendix A Self-Test Error Messages

A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Appendix B Connector Pinouts

B.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Appendix C PC-Doctor Diagnostics

C.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

C.2 Starting PC-Doctor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

C.3 Keyboard Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

C.4 Mouse Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

C.5 PC-Doctor Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

C.5.1 Online Help (?). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

C.5.2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

C.5.3 Interactive Tests Menu . . . . . . . . . . . . . . . . . . . . . . . C-4

C.5.4 Hardware Info Menu . . . . . . . . . . . . . . . . . . . . . . . . . C-5

C.5.5 Utility Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

vi Contents

C.6 Quitting PC-Doctor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

C.7 Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Preface

This manual provides installation, operation and servicing data for the Extensa

450 Series Notebook Computers.

Intended Audience

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

Contents

This manual contains six sections and multiple reference appendices including:

Section 1: General Description —

•

notebook; provides a list of physical and electrical specifications.

Section 2: Installation —

•

and cable up the notebook computer in a desktop environment.

Section 3: Operating Instructions —

•

operating controls and indicators and modes of operation.

Describes ho w to unpack, install options

Introduces the main features of the

Describes the no tebook

Section 4: Theory of Operation —

•

operation for Extensa series notebooks.

Section 5: Troubleshooting

•

for the Extensa 450 series notebooks.

Section 6: Field Service

•

procedures for the notebook computer.

Appendix A: Self Test Error Messages

•

Appendix B: Connector Pinouts

•

Appendix C: PC-Doctor Reference Data

•

Note:

new members of the Extensa product family.

Additional appendices will be added at a future date to document

— Provides troubleshooting procedures

— Provides corrective maintenance

Describes detailed theory of

Other Manuals About the System

The following docu ments provide addi ti o nal information related to the Extensa 450 series:

Preface

vii

Extensa 450 Series Notebook Computer User’s Reference Manual,

•

Part No. 9803942-0001; contains reference information regarding the Extensa 450 series softwar e including th e TI custom utilities.

Windows 95 Help

•

PC-Doctor Help and Technical Reference

•

(online)

Ordering Parts and Supplies

To order a copy of any TI publication or to order option kits, spare parts or supplies for your system, contact your TI Reseller or:

Telephone Tol l -free:

1-800-TI TEXAS

viii

Preface

General Description

1.1 Introduction

Section 1

This manual contains field and factory level servicing information for the Texas Instruments Extensa

This section provides a general overview and specifications for the Extensa 450 Series Notebook Computers.

450 Series of Notebook Computers (Figure 1-1).

Figure1-1 Extensa 450 Series Notebook Computer

General Description 1-1

1.2 Product Models

Table 1-1 summarizes the features of the product models initially available in the Extensa 450 product line. Basically, the product models offer a choice of either

10.4" Dual Scan Color or 9.4" Active Matrix Color LCDs and a choice of either the basic Windows 95 operating system or Windows 95 plus applications.

Table 1-1 Extensa 450 Serie s Noteb oo k Compute rs

Model 450 Model 450T Model 455 Model 455T

10.4" DS LCD 9.4" Active Matrix Color

Windows 95 Windows 95 Windows 95 Plus

10.4" DS LCD 9.4" Active Matrix Color

Windows 95 Plus

Microsoft Works, Quicken SE, Lotus Organizer, and Microsoft Entertainment Pack

1.3 International Product Versions

The Extensa 450 Series Notebooks are available in one of 15 domestic and international configurations as listed in Table 1-2.

Table 1-2. Noteb ook Dom esti c/ International Configuratio ns

Configuration P/N Suffix Configuration P/N Suffix

Domestic -0001 Swedish -0010 UK -0002 Swiss/French -0011 German -0003 Danish -0012 French -0004 Norwegian -0013 Spanish -0005 Finish -0014 Swiss/German -0006 Belgium -0015 Italian -0007 Austrian -0016 Portuguese -0008 Latin American -0018 Western European -0009

1-2 Gene ral Description

1.4 Product Overview

All members of the Extensa 450 Series are high performance notebooks powered by the 75MHz IntelDX4 processor and Windows 95

As a standard feature, all members of the Extensa 450 family also contain the following features:

Operating System software.

• 4MB of RAM memory (user-expandable to 32MB)

• 128 bytes of battery-backed up CMOS RAM

• 512 KB of video RAM

• 340 Million B yte Hard Drive (user replaceable)

• Support for one PCMCIA Type I or II option (Type III if floppy drive is removed

with option)

• Ergonomic keyboard with palm rest (2.7 mm travel); bu ilt-in touchpad pointing

device

• Most standard external device interfaces including serial, parallel, PS/2,

external VGA, and serial infrared wireless port

• Removable 3.5", 1.44 MB Floppy Drive (second Lithium Ion battery or a type III

PCMCIA device can be installed in its place with option)

• Choice of LCD displays (10.4" Dual Scan Color or 9.4" Active Matrix Color

LCD).

• AC Adapter with autosensing (100 VAC to 240 VAC, 50 to 60 Hz); 34 Watts of

DC output power

• 10.8 Volt, 2400 mAH capacity, Nickel-Metal Hydride (NiMH) primary battery

pack

• Provisions for secondary 10.8V, 1460 mAH capacity, Lithium-Ion Battery Pack

(with removal of Floppy Dri ve)

• Power management features for longer portable operation away from AC power.

General Description 1-3

1-4 General Desc rip ti o n

Figure 1-2 Extensa 450 Series Feature s

1.4.1 External Ports

As shown in Figure 1-3, the notebook computer contains the following external ports:

• Serial Infrared (SIR) Port for wireless connection with a similarly equipped

printer or computer

• 9-Pin Serial Port for attaching any RS-232 type serial device to the Notebook

• 15-Pin External VGA Monitor Port for attaching an external monitor

• 6-Pin PS/2 Port to attach an external Keyboard or Mouse

• Second 6-Pin PS/2 Port for attachin g an external Key board/Mouse

• AC Adapter Connector for attaching the AC Adapter to the notebook

Figure 1-3 Notebo ok External Ports

General Description 1-5

1.4.2 Touchpad Pointing Device

All members of the Extensa family feature a built-in Touchpad pointing device located near the center of the ke yboard’s palmrest. W ith light presure, the cursor can quickly be positioned to the desired point; a quick double tap on the Touchpad and you have selected an object. Two select buttons (switches) are located along the front edge of the notebook

Figure1-4 Extensa Touchpad

1.4.3 Keyboard

The Extensa Series Keyboard is an 83/84-key, IBM enhanced-type keyboard with the standard character and function keys plus 12 programmable function keys (F1 through F12).

Using the Special Function (Fn ) key which assigns multiple funct io ns to keys, the keyboard can emulate the IBM 101/102 keyboards using 83 keys (84 o n international models).

The keyboard has a 2.77 mm stroke and features a special keyboard interface chip that can detect multiple levels of key input (good simulation of N-key rollover for up to 10 keys).

Some of the major features of the keyboard include:

• 2.77-mm Key movement

• Integrated numeric keypad

• “Inverted T" Cursor C ontrol Key layout

1-6 General Description

The notebook keyboard is available in the following versions:

• U.S. English - This version (also known as the domestic version) has 81 keys

and is generally used in the United States and Canada.

• U.K. English - This version (also known as the international version) has 82

keys and is generally used in England, Germany, and other European countries with the appropriate keycap changes.

n Note: The Extensa Series Notebook Computer User’s Reference Manual contains de-

scriptions of keyboard special function keys. A six-pin Mini-DIN connector can attach to either an external PS/2 keyboard (or 101 Ke yboard via an adapter), PS/2 Mouse, or the opti onal PS/2 Numeric Keypad.

NumLk

Esc F1

Caps Lock

Shift

Ctrl

F3 F5

34 5

Alt

6 7

F10F9F8F7F6

F12

F11

Break

Pause

Alt

Home

ScrLk

Prt Sc SysRq

{

[

Shift

Delete

Insert

}

]

Enter

End

PgU

PgDn

Figure1-5 Extensa Keyboard

1.4.3.1 Controls and Indicators

As shown in Figure 1-6, Extensa Series No tebook Computers contain a set of three buttons (switches) and five LED displays just above the keyboard including:

• Power, Setup, and Standby/Suspend Buttons (Switches)

• Caps Lock indicator. This LED indicates that the keyboard is locked in the

uppercase mode. To switch to the lowercase mode, press the Caps Lock key.

• Num Lock indicator. This LED lights when you press the NumLk key to toggle

on the numeric keypad lock function. When the LED is On, the embedded numeric keyboard keys generate AT-keypad characters and functions when pres sed in conjunction with the Shift key. When the indicator is Off, pressing

General Description 1-7

the Fn key with th e appropriate keys provides curso r movement, paging and other functions in the normal mode.

• Scroll Lock indicator. This LED lights to indicate that the keyboard is locked

in the scroll mode.

• Hard Disk Drive Activity Indicator. Indicates when notebook is accessing the

hard drive.

• Standby Indicator. Lights wh en Notebook is in Standby mode.

1.4.4 Standard Power Features

Notebook power for the Extensa 450 Series Notebook Computers is provided by an AC Adapter an d a rechargeable 10.8 V, 2400 mAh Duracell nickel metal hydride (NiMH) battery pack that installs in a power bay near the front of the notebook (right side).

A second lithium ion battery may optionally be installed in the Floppy Drive bay when the Floppy Drive is removed from the Notebook.

1-8 General Description

Figure1-6 Extensa Series Controls and Indicators

All members of the Extensa 450 family feature TI’s paten ted power management subsystem (hardware and software) that provides longer portable operation and protection of files during low battery conditions.

1.4.5 Wireless Connection With Serial Infrared Port

The Extensa series notebooks are equipped with a Serial Infrared (IR) port that offers wireless communication with a variety of IRDA-compliant devices made by other manufacturers.

n Note: Prior to communicating with an external device equipped with a serial infra-

red interface, the appropriate third-party drivers must be installed on your notebook.

1.4.6 Preloaded Software

All members of th e Extensa 450 No tebook family are preloaded with the Wi ndows 95 Operating System. In addition, Extensa Models 455 and 455T come standard with the following application packages installed:

• Microsoft Works

• Quicken SE

• Lotus Organizer

• Microsoft Entertainment Pack No. 4

1.4.7 Notebook Expansion Capabilities

Expansion capabilities built into the Extensa notebook series include:

• User installable expansion RAM me mory (to a maximum of 32 MB)

• By removing t he floppy drive, you can add either a second battery pack or a

Type III PCMCIA device with option.

• A Cable Connec t PS/2 Numeric Keypad option, P/N 2581381-0001, can be

attached to either of the two external PS/2 Ports.

• A parallel device can be attached to the notebo ok’s external 25-pin parallel port

(EPP/ECP compatible).

• With the port adapter installed (supplied with the notebook), the notebook’s

expansion bus is adapted to provide the following external ports:

– Serial RS-232 Port for attaching any serial device – External VGA Port for driving an external color monitor – Second PS/2 Port for attaching an external keyboard or mouse

General Description 1-9

• Third Party External PS/2 keyboard (or external mouse)

1.5 Standard Test Features

The Extensa Series Notebook Computers use modular design and built-in test features to reduce the mean time to repair. A power on self-test automatically verifies the operational state of the primary circuits and a powerful suite of diagnostic tests are available to further test selected parts of the system.

1.6 Notebook Assemblies and

Subassemblie s

The Extensa Series Notebooks are modular in design and can be disassembled for maintenance purposes using a standard set of flat-bladed, Phillips -head and hexagonal screwdrivers. The major assemblies that comprise a typical notebook in the Extensa family are shown in Figure 1-7 and briefly described in the following paragraphs.

1-10 General Descriptio n

Figure 1-7 Notebook Assemblies

1.6.1 Cover-Display Assembly

The Cover-Display Assembly contains the LCD screen and associated high voltage power supply and video circuitry. The Cover-Display Assembly contains three field-replaceable components including:

• LCD Assembly

• Inverter Board

• Slide Pot/Converter Board

The Cover-Display Assembly attaches to the System Base Assembly through four top mounted screws and six mounting screws on the bottom of the computer.

1.6.2 System Base Assembly

As shown in Figure 1-7, the majority of the notebook’s field replaceable units (FRUs) are located in the system base assembly. These FRUs include:

• Main Board Assembly

• Hard Disk Drive Assembly

• Memory Board Assembly

• Up to two Dual Inline Memory Modules

• Serial Infra-red B oard Assembly

• Floppy Drive Assembly

• Secondary Battery Board Assembly

• Power Supply Board Assembly

• Battery Pack Assembly

• Top Case Assembly

• Touchpad Assembly

• Keyboard Assembly (removed in Figure 1-7 for clarity)

• Battery Board Assembly

General Description 1-11

1.7 Extensa 450 Serie s Not ebook

Specif ica tions

Specifications for the Extensa 450 Series Notebooks are provided in Table 1-6.

Table 1-6 Extensa 450 Notebook Feature s

Specifications Models 450/450T Models 455/455T

Memory:

Standard:4MB 4MB Maximum 32MB 32MB

Display LCD Type:

Simultaneous LCD/Ext. VGA

Video RAM Size: Video Bus

Keyboard/Pointing Device,

Ergonomic Keyboard Yes Yes Built-In Touchpad Yes Yes

Storage

Floppy Drive: 3.5", 1.44MB 3.5", 1.44MB Hard Drive: 340 Million Byte 340 Million Byte

Interfaces

Serial (RS232) Port Yes (Port Adapter) Yes (Port Adapter)

10.4" Dual Scan Color 9.4" Active Matrix Color

Yes Yes

512 KB 512 KB VLBUS with Graphics

Accelerator

VLBUS with Graphics Accelerator

Parallel Port (EPP/ECP), Yes

External VGA Port Yes (Port Adapter) Yes (Port Adapter) External PS2 Ports Yes (2nd PS/2 Port on

Serial Infrared Port Yes Yes

PCMCIA Support

1-12 General Descriptio n

Yes

Yes (2nd PS/2 Port on

Adapter)

Type I/II (III Optional) Type I/II (III Optional)

Adapter)

Specifications Models 450/450T Models 455/455T

Software

Physical Characteristics

Weight: Approx. 5.0 Pounds

Dimensions: 11.7” (L) X 1.7” (H) X

* Wight specifications do not include Floppy Drive, AC Adapter or 2nd Battery

Windows 95 Windows 95,plus

applications

Approx. 5.0 Pounds

(2.27kg) *

8.2” (W)

(2.27kg)

11.7” (L) X 1.7” (H) X

8.2” (W)

1.8 Agency Approvals

All Extensa 450 Serie s products meet the following standards:

• Underwriter’s Lab (UL) Standard 1950 (safety)

• Canadian Standards Association (CSA) Standard 220 (safety)

• FCC CFR 47, Part 15, Subpart J, FCC Level B (EMI)

• Canadian Department of Communications (DOC) Certification

• VDE 0871, Class B (EMI)

General Description 1-13

Installation

2.1

This section contains unpacking and preparation for use instructions for the Extensa 450 Series Notebook Computers.

2.2

The packaging diagram for the notebook computer is shown in Figure 2-1. Unpack the computer using the following instructions:

Note:

2.3

Introduction

Unpacking Instructions

Carefully cut the tape that seals the top flap of the shipping carton.

Remove the computer and the accessories from the main shipping carton.

Remove all protective coverings from the computer.

Remove the holding tape and open up the accessory box; remove the contents.

Save the shipping containers and packaging for later reuse.

Installing Notebook Options

If you have no options to install at this time, skip to Paragraph 2.3. Otherwise, continue with Paragraph 2.2.1.

2.3.1

Note:

graph.

Caution: The Dual Inline Me mory M odu le conta in s compon ents th at a re sensitive to static electri city. When handling the module and the in ternal parts of the computer, protect against static electrici ty by usin g wrist or ankle groundin g stra ps a nd gro unded w orkin g ma ts. W hen mo ving or storing items, us e the a nti -static bag s s upplied with the ite ms.

If not installing RAM Expansion option at this time, skip to the next para-

Installing Dual Inline Memory Module(s)

Installation

2-1

1. Ensure that the notebook is powered off and that the AC Adapter and internal battery pack(s) is (are) removed from the notebook.

2. Remove the DIMM module(s) from its shipping container.

3. Release the Keyboard by pulling the keyboard release tabs forward (tabs are

located underneath the Ctrl and right arrow keys).

4 Disengage the Keyboard using a straight blade screwdrive and gently lifting up

along the front edge of the keyboa rd.

5 Using the back edge of the keyboard as a hinge, lift the front edge of the

keyboard up and lay it against the display.

Remove the two Phillips head screws holding heatsink to the Main Board

and remove the heatsink by lifting it upwards and out of the unit.

7. Insert the edge of the DIMM Board into the rear of either available connector (see Figure 2-1). Use a rocking motion to fully insert the module. Push downwards on each side of the DIMMs module until it snaps in place.

8. R eplace the heatsink, keyboard assembly and any other components removed in step 1.

This completes the expansion memory module installation procedur e.

2-2

Figure 2-1 Installing Additional Memory

Installation

Type III PCMCIA If Floppy Drive Removed and PCMCIA Option installed

Type 1 or Type II PCMCIA Option

2.3.2

The Notebook has provisions for one Type I or Type II PCMCIA option card. However, a type III PCMCIA device can be installed if the Floppy Drive is removed from the notebook and the optional PCMCIA Module is installed ..

1. Review the installation instructions supplied with the PCMCIA option card(s).

2. Open the Type I/II PCMCIA compartment cover on the left side of the

notebook.

3. To insert a PCMCIA card, align the card with the socket and slide the card into the socket until it locks into place. To install a Type III option, you must remove the Floppy Drive from the right side of the notebookand install the PCMCIA Option Assembly..

4. To eject a PCMCIA card, first ensure that the notebook is not accessing the memory card or device. Under Windows 95, go to the Control Panel, PC Card and direct the card to stop before removing card.

Installing PCMCIA Options

Figure 2-2 Installing PCMCIA Options

Installation

2-3

2.3.3

Note:

To install the Port Adapter, refer to Figure 2-3 and use the following procedure:

1 Remove the -port adapter and any accessories from its shipping carton . 2 Disconnect the AC Adapter from the notebook (if attached). 3 Open the rear connector door on the notebook and attach the Port Adapter to the

Skip this paragraph if not installing the Port Adapter at this time.

notebook as shown in Figure 2-3.

Installing the Port Adapter

Figure 2-3 Installing the Port Adapter

2-4

Installation

2.3.4

An optional numeric keyboard can be attached to the notebook via the notebook’s PS/2 connector as shown in Figure 2-4.

Installing the Optional Numeric Keypad

Figure 2-4 Installing the Numeric Keypad option

2.4

The standard configuration of the Extensa Notebook is equipped with a single battery pack that is inserted from the front right side of the comput er. However, if you can do without the Floppy Drive, you can use the floppy drive bay to house a second Lithium Ion battery pack.

To remove or replace the battery pack , follow the steps below.

1. Power off the notebook, being sure to save your data first.

2. Locate the battery door (right side of notebook near the front). Press the battery

3. Insert a new or recharged battery pack into the battery compartment bay. Make

Installing the Battery Pack(s )

door inwards and slide the door toward the front of the not e book; remove the battery door.

sure that the contacts are facing up and to the rear of the compartment. Check the label (facing up when inserted) indicating the positive and negative poles of the battery.

Installation

2-5

Caution: There is danger of explosion if the battery is incorrectly replaced. Replace the battery only w ith the same o r an e qui valen t type recommended by the manufa cturer. Discard used batteries accor ding to the manufacturer’s instruction s.

2.5

Most external devices connect to the Notebook via the connectors on the rear of the notebook and on the rear of the Port Adapter supplied with the noteb ook (see Figur e 2-5 for port assignments).

Installing External Devices

2-6

Installation

Figure 2-5 Extensa Port Assignments

2.5.1

As shown in Figure 2-6, the notebook has provisions for two external PS/2 compatible devices (keyboard, mouse, etc.) that may be attached to the notebook . The pinouts for the 6-pin Mini-DIN connectors are also provided in Figure 2-6.

Install ing an External Keyboard/Mouse

PS/2 Ports

Figure 2-6 PS/2 Port Assignments/Pinouts

To install an external keyboard or external PS/2 mouse on the notebook, use the following procedure:

1. Ensure that the notebook is po we re d off.

2. Locate the external PS/2 ports at the rear of the notebook (see Figure 2-6).

3. Attach the PS/2 cable from your mouse and/or keyboard cable to the PS/2

port(s).

4. Power on any other peripheral devices you may have connected to the notebook, and then power up the notebook.

Installation

2-7

2.5.2

The Notebook is equipped with a bi-directional, ECC/EPP compatible, 25-pin parallel printer port. The connector pinouts and connector location are shown in Figure 2-7.

If you will be using a parallel interface, connect the 25-pin male connector of your printer cable to the 25-pin female parallel port on your notebook. Refer to the manual which accompanied your printer for instructions on configuring your operating environment

Installing External Parallel Printer

2-8

Installation

Figure 2-7 Parallel Port Location/Pinouts

2.5.3

The notebook contains an RS-232 serial port with a male DB-9 connector as shown in Figure 2-8. The serial ports are used to interconnect such devices as:

External Modem

•

Serial Printer

•

Any device that uses an RS-232 interface

•

To connect a printer to the notebook, ensure that both the notebook and the printer are turned off.

Installing External Serial Port Device

Caution: Never connect a paralle l device to a se ri al port o r a se rial de vice to a parallel port o r video po rt; th is may cau se dama ge to th e No tebook and/or peripheral devi ce. If y ou ar e unce rtain of wh at ty pe connector the externa l dev ice ha s, ref er to th e techn ica l manua l fo r th e external device.

Figure 2-8 Serial Port Location/Pinouts

Installation

2-9

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