Acer Extensa 450 Service Manual

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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

2.5.4

The notebook is capable of driving both its internal LCD display and an external VGA monitor (LCD only, simultaneous, or VGA only). The external monit or connector pinouts and connector locations are shown in Figure 2-9. To install an external monitor with the notebook, use the following steps:

1. Ensure that both the notebook and the external monitor are turned off.

2. Locate the 15-pin female VGA port on the Port Adapter.

3. Attach the appropriate end of the monitor cable to the VGA port on your

notebook. If the monitor cable connectors have retaining screws, tighten them down.

4. If necessary, connect the monitor power cable to the monitor, and plug the monitor power cable into an electrical outlet.

5. Power on the monitor, as well as any other peripheral devices connected to the notebook; then power up the notebook

2.5.5

The Serial Infrared (IR) port offers wireless communication with a variety of IRDA-compliant devices made by other manufacturers. Ensure that the third-party manufacturer supplies you with the appropriat e IR drivers bef ore attempting connection.

Installing External VGA Monitor

Installing SIR Devices

2-10

Installation

Figure 2-9 External Monitor Port Pinouts

2.6

Use the following procedures to connect the AC Adapter to the system:

Caution: Use only the AC Adapter supplied with the computer; oth er adapters can damage the u nit.

Remove the AC adapter from the packaging. Connect the round coaxial connector

2. Connect the female side of the AC Power cord to the AC Adapter and connect the

Installing the AC Power Adapter

supplied with the notebook to the power receptacle on the rear of the notebook as shown in Figure 2-10.

male end to a grounded AC ou tle t .

Installation

2-11

Figure 2-10 AC Adapter Installation

2.7

After you’ve installed all internal options and external cabling, you’re ready for system checkout and software configuration.

To check out the system, set the power switch on the notebook to the On (I) position which initiates the notebook self test. During self test execution, the computer checks the operation of all key hardware including memory and CPU (and displays copyright and version number data during test execution).

Upon successful conclusion of self test, the computer automatically loads its operating system and Windows environment. If self test fails to complete and an error message is displayed, try powering down the computer for a couple of minutes and turning power back on to rep eat self test. If the error message persists, see Section 6 for troubleshooting information.

Initial System Checkout

2-12

Installation

2.8

The first time you power up the notebook, it automatically runs the Setup Progra m which prompts you for country name and printer type. You exit Windows and the notebook begins unzipping files and preparing the software for use. Then it gives you the option of keeping or removing the video.

Configuring the System

2.9

Making Backups of System Software

The Notebook is preloaded with Windows 95 operating system software. Prior to extended use of the notebook, create a backup set of system software using the Backup Utility under Windows 95. In the event of a disk problem, you can restore your system using the Restore Utility and the set of backup diskettes you’ve just created.

2.10

For assistance in loading Application Software, refer to Chapter 5 in the Extensa Series Notebook Computer User’s Reference Manual.

Loading Application Software

Installation

2-13

Operating Instructions

3.1

The first two subsections describe the Extensa 450 Series Notebook operating controls and indicators. The remainder of this section contains a summary of computer operations related to notebook maintenance including how to restore system software.

Note:

puter Users Guid e , TI Part No.98039 42-0001.

3.2

The Extensa Series Notebooks are equipped with the following controls and indicators:

Group of five LEDs just above the keyboard (Sleep Mode, Hard Drive Activity,

•

Num Lock, Caps Lock and Scroll Lock)

Power, Setup, and Standby/Suspend buttons adjacent to the status LEDs

•

Introduction

For additional operating instructions, see Extensa 450 Series Notebook Com-

Notebook Controls and Indicators

Single Power LED on the leftrear corne r of the not e book

•

Touch Pad and two select buttons at base of keyboard

•

Contrast Switch on Display Assembly (Dual Scan models only)

•

These controls and indicators are shown in Figure 3-1 and described in greater detail in the following paragraphs.

Operating Instructions

3-1

Figure 3-1 Extensa Series Controls and Indicators

3.2.1

The TFT version of the notebook contains no operating control s or indicators. The Dual Scan version of the display contains a contrast switch on the lower right side as shown in Figure 3-1.

3.2.2

The notebook contains two button switches above the keyboard including:

Power On/Off

•

to the unit.Pressing the Power button causes power to be applied to the notebook and power up self test to be run. The notebook) glows green and the computer then loads Windows 95. Wh en the Power button is pressed again, the Notebook powers down and all data in RAM memory is lost.

Standby/Suspend

•

invokes the save to disk feature and places the unit in Standby Mode (if previously On) or On if previously in Standby Mode.

LCD Contrast Control

Button Switches

Switch- Alternate action, button type switch that controls power

PWR

LED (left rear corner of

Button Switch- an alternate action touch switch that

Operating Instructions

3-2

3.2.3

The Notebook contains one Cover Release latch . To open the notebook, slide the Release Mechanism to the right and lift up on the front edge of the notebook cover.

3.2.4

The Extensa 450 Series Notebook Computers are equipped with a built-in mouse device called “the Touchpad” physically located at the bottom of the keyboard (see Figure 3-1).

The cursor is positioned by touching and draging your finger in the direction you want the cursor to go. The select functions are performed either by tapping the touch pad or by pressing the two buttons (switches) at the bo ttom of the keyboard.

You can change the operation of the pad by changing values in the mouse section of the Windows 95 Control Panel. Once your cursor is in the prop er place and you want to select, use the left button to click or double click just as you would a mouse.

3.2.5

The Notebook contains three “keyboard mode” indicators just above the keyboard on the left side (notebook cover open). These LEDs include:

Cover Release Latch

Touch Pad Controls

Keyboard Mode LEDs

CAP (Caps Lock)

•

the Uppercase mode. To switch to the Lowercase mode, press the key on the keyboard.

NUM (Num Lock)

•

(NumLk) keys 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 pressed in conjunction with the Fn key.

When the NUM indicator is Off, pressing the Fn key with the appr opriate keys provides cursor movement, paging and other functions in the normal mode.

When the NUM indicator is On, the embedded numeric keypad becomes a temporary numeric keypad that does not require you to press any other key.

SCRL (Scroll Lock)

•

locked in the scroll mode.

3.3

Some of the operating features useful for notebook maintenance are provided in the following paragraphs. For additional operating instructions, refer to the Extensa

450 Series Notebook Computer User’s Manual, Texas Instruments Part No.

9803942-0001.

Operating Procedures

Indicator- this LED indicates that the keyboard is locked in

Caps Lock

Indicator- This LED lights when you press the

Indicator- This LED lights to indicate that the keyboard is

Fn-F7

3.3.1

To avoid damaging the floppy drive drive, and to protect data, take the following precautions:

Floppy Drive Operating Procedures

Operating Instructions

3-3

Never turn off or reset the notebook while the floppy activity indicator is lit.

•

Keep the AC adapter at least 6 inches away from your drive.

•

Insert the floppy into the floppy drive slot with the label side up and the

•

metal-shutter end first. Gently push the floppy into the floppy drive slot until the floppy clicks into place.

To remove a floppy, press the eject button until the floppy po ps out.

•

Never force open the access shutter on a floppy.

•

Always remove a floppy from the floppy drive before turning off the computer.

•

Never transport the commuter with a floppy in the floppy drive. Doing so can

•

damage the drive head.

If a floppy appears to be damaged, try to make a copy of it, and immediately

•

discard it.

Keep all floppies when not in use in a disk storage box to protect them from

•

damage or loss.

3.3.2

PCMCIA cards are inserted and ejected in much the same way as diskettes:

Type I or Type II PCMCIA options may be installed in the compartment on the

•

left side of the notebook. Type III Options may be installed on the right side of the notebook with the Floppy Drive removed and the PCMCIA Option installed.

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.

To eject a PCMCIA card, go to the Windows 95 Control Panel, select PC Card

•

and select the card to stop; then press the release button and remove the PCMCIA option.

3.3.3

The Extensa Series recognizes the following hot key sequences:

CTRL-ALT-DEL

•

Installing/Removing PCMCIA Options

Computer Hot Keys

(warm boot)

Operating Instructions

3-4

CTRL-ALT-ESC

•

at "Starting Windows 95" message. Select Command Prompt Only; then press

CTRL-ALT-ESC.

(Enter setup screen); to use, power up notebook and press F8

3.3.4

The computer generally will notify you when you are reaching a low battery condition by the following:

Four short beeps per minute (unless battery warning is disabled)

•

The battery low warning is automatically disabled when the AC Adapter is installed on the notebook regardless of the charge condition of the battery pack.

If the AC adapter is not plugged in within threeminutes of a detected battery low condition, the notebook enters Suspend mode. When the notebook enters Suspend Mode, it issues one beep,saves contents of RAM to disk and powers down the unit.

The Notebook returns to the normal operating mode when the power switch is activated. Unit then recovers RAM information from the hard drive and restores unit to previous "On" condition.

3.3.5

The following actions can minimize power usage and protect your work during the critical minutes before you shut the system down or replace on the battery packs with a fully charged pack:

Responding to Low Battery Conditions

Minimizing Power Usage

CTRL-STANDBY

Press

•

Save RAM Disk (if using RAM Disk feature)

•

Standby/ Suspend

Press

•

mode whenever you are not actively using the computer. This will save all your work and remember the application and file you were previously using when you return to the On condition.

Power down the system if you do not need the computer

•

3.3.6

A standalone battery charger option is available to charge notebook battery packs. The battery packs may also be charged in the notebook as follows:

1. Install the battery pack in your computer (if not already installed).

2. Connect the AC Adapter as described in Section 2.

3. To fully charge the battery pack, leave it charging in the Notebook for at least

another 90 minutes.

Recharging the Battery Packs

to shut off the alarm (if its enabled)

button to put the computer in Standby/suspend

3.3.7

When you power up the Notebook, it automatically checks for certain key files that must be present for normal system operation. If any of these files are accidently erased as indicated by error message, insert the Windows 95 Startup Diskette and reboot the system. This will allow you to boot up and troubleshoot your system.

Restoring Missing System Files

Operating Instructions

3-5

3.3.8

In the event of a hard drive replacement or system board replacement which resulted in loss of system software, you may need to rebuilt the entire system software structure.

The following items are required to rebuild the system software:

Set of backup diskettes of the system software

•

Operational Notebook

•

Insert the Windows 95 Startup Diskette in the Notebook’s floppy drive and power up the system.

Note:For additi ona l operating procedures , refer to to the Extensa 450 Series Note-

book Computer User’s Manual, Texas Instrume nts Pa rt No. 9803942-0 001..

Rebuilding the System Software

Operating Instructions

3-6

Theory of Operation

4.1

This section describes the notebook theory of operation.

4.2

Functionally, the notebook computer consists of the following major subsystems:

Processor and Memory Subsystem

•

I/O Subsystem

•

Video Subsystem

•

Hard Disk Subsystem

•

Floppy Disk Subsystem

•

PCMCIA Subsystem

•

Serial Infrared Subsystem

•

Power Subsystem

•

Introduction

Notebook Functional Description

A functional blo c k di ag ram of the Extensa Notebo ok is shown in Figure 4- 1.

4.2.1

The Processor function, housed on the Main Board, is implemented with a 75mhz IntelDX4 Processor. The processor operates in conjunction with RAM and ROM Memory on the Memory Board and other control logic on the Main Board to process software instructions (BIOS, Windows 95, and Applications).

Primary control for the Processor/Memory subsystem is implemented with the M1429L PC/AT Chipset. Address buffering and real time clock function is implemented with an M1441L.

The memory subsystem, implemented on the Memory Board and optional Dual Inline Memory Modul es, provides 4MB (expandabl e to 32 MB) of fast DRAM memory, 128 bytes of CMOS RAM (battery backed up) and 256 KB of Flash ROM for system and video BIOS storage. Tables 4-1 through 4-3 contain the Notebook I/O address map, DMA channel assignments and IRQ interrupt level assignments respectively.

Processor/Memory Subsystems

Theory

4-1

4-2

Figure 4-1 Notebook Functional Block Diagram

Theory

Table 4-1 Extensa Series I/O Address Map

Address Range Device

000-00F DMA Controller 1 020-021 Interrupt Contr oller-1 022-023 M1429 Registers 040-043 Tim er 1 060-06E Keyboard Controll e r 8742 Chip Select 070-071 Real Time Cl ock and NMI Mask 080-08F DMA Page Register 0A0-0A1 In terrupt Controller 2 0C0-0DF DMA Controller-2 1F0-1F7 Hard Disk Select 178,,17A 6377 Reg i sters 1F0-1F7 Hard Disk Select 3F6,,3F7, 278-27F Parallel Port 3 35F, 36F Special I/O Ports 378,,37A Parallel Port 2 3BC-3BE Parallel Port 1 3C0-3C5 3C6-3C9 Video DAC 3C0-3CF Enhanced Graphics Display 3D0-3DF Color Graphics Adapter 3E0-3E1 PCMCIA Controller 3F0-3F7 Floppy Disk Controller 3F8-3FF Serial Port 1

Theory

4-3

Table 4-2 DMA Channels

Controller Channel Address Function

1 0 0087 Spare 1 1 0083 Spare 1 2 0081 Diskette 1 3 0082 Spare 2 4 Cascade Cascade 2 5 008B Spare 2 6 0089 Spare 2 7 008A Spare

Table 4-3 IRQ Interrupt Levels

Priority Interrupt

Interrupt Source

Number

1 SMI Power management unit 2 NMI Parity Error Detected,,I/O Channel Error 3 IRQ0 Interval Timer ,,Counter 0 Output 4 IRQ1 Keyboard

IRQ 2 Interrupt from controller 2 (cascade) 5 IRQ8 Real Time Clock 6 IRQ 9 Cascaded to INT 0AH (IRQ 2) 7 IRQ10 Reserved 8IRQ

11,Reserved

9 10 IRQ13 INT from Coprocessor 11 IRQ14 Hard Disk Controller

IRQ 12,PS/2 Mouse

4-4

12 IRQ15 Reserved 13 IRQ3 Serial Comm

Port 2 14 IRQ4 Serial Comm Port 1 15 IRQ5 Reserved 16 IRQ6 Diskette Controller 17 IRQ7 Parallel Port

Theory

Note: A PCMCIA card can use IRQ 3, 4, 5, 7, 9 and 11 as long as it does not conflict with the interrup t a ddress of any o ther device.

4.2.2

The I/O subsystem, implemen ted with an NS87334 VJG S uper I/O Controller Chip, provides for such functions as internal Hard Drive control, floppy drive control, serial and parallel ports and support for the Serial Infrared port. The Super I/O Controller includes the following features: .

100 percent compatible with ISA, EISA, and Micro-channel architectures

•

Built-in Floppy Disk Controller

•

Software compatible with the DP8473, the 765A and N82077

•

I/O Subsystem

•

16-byte FIFO (default disabled)

•

Burst and Non-burst modes

•

Perpendicular Recording drive support

•

New high-performance internal digital data separator (no external filter components required)

•

Low-power CMOS with enhanced power-down mode

•

Automatic media-sense support

Two UARTS

•

Software compatible with the PC16550A and PC16450

•

MIDI compatible

•

Infrared support on UART2 (IrDA -compliant)

Bidirectional Parallel Port

•

Enhanced Paralle Port (EPP) compatible

•

Extended Capabilities Port (ECP) compatible, including level 2 support

•

Bidirectional under eithe r software or hardware control

•

Compatbile with ISA, EISA, and Micro Channel architectures

•

Ability to multiplex FDC signals on parallel port pins for external FDD

Theory

4-5

•

Includes protection circuit against damage caused when printer is powered up, or operated at higher voltages

Integral IDE controller

•

Provides a complete IDE inter face with DM A cont rol (except for optional buffers)

Integral address decoder- provides selection of all primary and secondary ISA

•

addresses including COM1-4 and LPT1-3.

Enhanced Power Management Function

•

Special configuration registers for power down

•

Enhanced programmable power-down and wake-up modes

•

Auto power-down and wake-up modes

•

3 special pins for power management

•

Typical current consumption during power-down is less than 10A

4.2.3

The video subsystem, implemented on the Main Board and on the LCD Display Unit, displays text, graphics and drives an external VGA port. The video subsystem is implemented with a Cirrus Logic 6245 high perfo rmance flat panel/RT VGA controller and supporting logic and video RAM (512KB).

The major features of the VGA controller include:

Highly integrated design (flat panel / CRT VGA controller, RAMDAC, clock

•

synthesizer)

Multiple Bus Architecture Integrated Interface

•

Advanced frame buffer architecture uses available display memory, maximizing

•

integration and minimizing chip count

Integrated programmable linear address feature accelerates GUI performance

•

High performance resulting from zero wait state writes (write buffer) and

•

minimum wait state reads (internal asynchronous FIFO design)

Video Subsystem

•

Local Bus (32-bit CPU Direct and VL)

•

EISA/ISA (PC/AT) 16-bit Bus

4-6

Theory

Supports panel res olutions up to 1280 x 102 4 res olution including 800x600

•

and 1024x768

SMARTMAP intelligent color to gray scale conversion enhances text legibility

•

Text enhancement feature improves white text contrast on flat panel displays

•

Fully Compatible with IBM VGA

•

4.2.3.1 External VGA Drive Capability

On the Extensa 450, the external VGA port is provided by the port adaptor fixture in the form of a 15-pin, female, D-type connector which can be used to drive an external CRT (standard VGA modes with resolutions of 800 X 600 X 256, or 640 X 480 X 256 ).

4.2.4

The Hard Disk Subsystem, controlled by the IDE interface compatible NS87334 VJG Super I/O Controller on the Main Board, provides disk storage for all system software and user files. Initially, the 450 Series Notebooks are equipped with a 340 Million Byte hard drive. However, the onboard controller can support high capacity drives.

During the manufacturing process, Texas Instruments formats the hard disk and then loads all supplied software including Windows 95.

Caution: Formatting the di sk driv e e rases a ny data tha t may be stor ed on the disk. Therefore do not a ttempt a forma t of the ha rd disk u nless the computer self-test and diagn os tics con firm th at th e disk h as no t been formatted.

A Hard Drive activity LED is located along the front edge of the notebook. This LED lights during hard driver read/write accesses.

Hard Disk Subsystem

Caution: The notebook sh ou ld not be mo ved wh en the HDD LE D is lit to prevent accidental damage to the h ard dri ve.

4.2.5

The Floppy Diskette Drive Subsystem consists of a Floppy Controller and the Floppy Diskette Drive. The Floppy Diskette Drive can read/write standard 3.5-inch minidiskettes.

4.2.6

The notebook is equipped with an on-board PCMCIA host adapter (CL-PD6722 PCMCIA Controller) and s oc kets to support one Typ e I or Ty pe I I opt i on or a Typ e II I option if the Floppy Drive is removed from the unit. The PC MCIA Controller has the following features:

Single-chip PCMCIA host adapters

•

Floppy Diskette Drive Subsystem

PCMCIA Subsystem

Theory

4-7

Direct connection to ISA (PC AT) Bus

•

Direct connection to PCMCIA 2.0 Bus

•

PCMCIA 2.0- and JEI DA 4.1-complia nt

•

82365SL-compatible register set, ExCA-compatible

•

Automatic Low-power Dynamic Mode for lowest power consumption

•

Programmable Sus pend Mode

•

Five programmable memory windows per socket

•

Two I/O windows per socket

•

Programmable card access cycle timing

•

8- or 16-bit CPU interface

•

8- or 16-bit PCMCIA interface support

•

ATA disk interface support

•

Automatic flash memory timing support

•

Easy host interface using ISA I/O addresses 03E0h, 03E1h

•

Mixed-voltage (3.3V or 5V) operation

•

Dual-socket-interface, 208-pin QFP

•

4.2.7

The Power Subsystem consists of the following major parts:

Power Management (hardware and software components)

•

AC Adapter

•

Primary Battery Board

•

Primary Battery Pack

•

Power Subsystem

4-8

Theory

Secondary Battery Board

•

Secondary Battery Pack

•

4.2.7.1 Power Management

The notebook is equipped with a power management function that minimizes battery usage for prolonged battery operation and automatically recharges the batteries when the notebook is used with an AC adapter.

The power management modes and warnings include the following:

LCD standby mode

•

Hard disk standby mode

•

System standby/suspend mode

•

Battery-low warning

•

Standby/suspend upon battery low

•

4.2.7.2 AC Adapter

The notebook uses an AC adapter with built in over voltage and short circuit protection.

The adapter can with stand a continuous short-circuit to DC output without damage to the notebook logic components. The adapter operates in shut down mode shorting Vo trail and resets to the normal power mode after the fault condition is removed.

4.2.7.3 Primary Battery Pack

The Extensa Series Notebooks use the Duracell DR35 as the primary battery pack. Specifications for the Primary Battery Pack are provided in Table 4-4.

Table 4-4 Primary Battery Pack Specifications

Function Specifications

Battery type NiMH (Nickel Metal-Hydride) Cell structure 9 cells per pack (in series) Nominal voltage 10.8 V Cell energy capacity,

Typical, Minimum

Nominal rated capacity 27 Watt-hours Operating Temperature

Discharge, Charge

Charge and discharge cycles

2400 mAH 2500 mAH, 2330 mAH,

-20 to 50°C (at 95%RH), 0 to 45°C (at 95%RH),

500 (minimum),

Weight 470 grams Battery discharge time 3 hours (with APM)

Battery charge time

Theory

4-9

4.2.7.4 Secondary Battery Pack

As an optional feature, the Floppy Drive can be removed fr om the notebook and a Li-Ion (Lithium Ion) secondary battery pack can be installed in the same cavity to provide additional battery operating time.

4-10

Theory

Troubleshooting Procedures

5.1

This section provides the following information:

Overview of the fault isolation process

•

Guidelines for isolating computer malfunctions to replaceable subassemblies

•

Instructions for executing diagnostics and interpreting error messages.

•

5.2

The fault isolation process (summarized in Figure 5-1) consists of the following:

Quick Check of the following:

•

General

Overview of Fault Isolation Process

•

Notebook power system (including battery packs and AC Adapter connections)- See Paragraph 5.4.

•

Switch settings (ensure switch to ensure that Notebook is not in Standby mode; press to ensure the notebook is not in Auto-Suspend mode.

•

All external cabling (if any)

•

Check LCD Contrast adjustment (Dual Scan version only)

Record and attempt to resolve any displayed error messages/LED indications

•

(See Paragraph 5. 3 a n d Ta ble 5-1) Record and attempt to resolve any series of beeps emitted from the notebook indicating test failure (See Table 5-2)

Power

switch is On, and press

Troubleshooting

Standby

Shift

5-1

START

COMPUTER

TROUBLE

INDICATION

DEAD

COMPUTER

SYMTOMS

RUN

SELF TEST

ERROR

MESSAGE

MODEM

PROBLEM

RUN

DIAGNOSTICS

ERROR MSG

YES

SEE PARAGRAPH

5.3.5

YES

SEE PARAGRAPH

5.3.4

SEE

PARAGRAPHS

5.3.1 & 5.3.2

WHEN POWER SWITCH

SET TO ON,, NO

INDICATION OF POWER;

SCREEN DARK, STATUS

LED's EXTINGUISHED

SET POWER SWITCH

TO ON. SELFTEST

AUTOMATICALLY RUNS

YES

See Appendix D (PC Doctor)

Troubleshooting

5-2

Figure 5-1 Troubleshooting Flowchart

Try rebooting the system (CTRL-ALT-DEL); restore system from diskettes, if

•

necessary.

If the computer is capable of running the Setup program; check the serial and

•

parallel port configurations, and other features that may affect system operation.

Run Diagnostics to further isolate problem area (See Paragraph 5.3.5).

•

For indicated hardware failures, cycle power and repeat self test to verify that a

•

hard failure has occurred.

Remove and replace suspect hardware (as described in Section 6 of this

•

manual) and retest the system using the diagnostic tests as described in paragraph 5.3.5.

The detailed blo c k di a g ram, shown in Figure 5-2, is useful in performing fault analysis of various internal subsystems. For exampl e, an LCD har dwar e pr oblem can be traced to either the LCD, Inverter Board, VR Boar d, or Battery Board. Other subsystem problems can be isolated in a similar fashion using the detailed block diagram as a troubleshooting tool.

5.3

The built-in self test program and the disk resident diagnostics prog ram (PC-Doctor) are useful tools in computer troubleshooting. However, if the computer has a power, keyboard or display problem, you first solve this problem before running diagnostics. If the computer powers up and displays messages on the LCD or emits a series of beeps, skip to Paragraph 5.4.3 for further instructions.

5.3.1

If the computer does not power up when the Power Switch is set to the ON position, you most likely have a malfunction in the power subsystem (loss of power at the AC Outlet, faulty AC Adapter, discharged Battery Packs, or faulty Power Supply Board). With a power problem, all LEDs are extinguished, the LCD screen is blank, the system does not respond when the standby switch several times consecutively and no drive activity can be heard. The computer is unable to load software and displays no visible signs of activity.

To fault isolate a power problem, check the following:

Troubleshooting Procedures

Troubleshooting a Power Supply Problem

AC Adapter and Battery- Plug in the AC adapter and double check all

•

connections on the Adapter and computer. Ensure that the Notebook switch is set to the On position and that the system is not in Standby or sleep mode.

Measure the voltage at the AC Outlet or plug in a known good appliance (EG. a

•

lamp) to verify that voltage is present. If the voltage is O.K., try replacing the AC Adapter

Check to see that the battery pack is installed correctly (try using a recharged

•

battery pack if batteryis discharged).

Troubleshooting

Power

5-3

Troubleshooting

5-4

Figure5-2 Troubleshooting Block Diagram

If the AC outlet voltage, AC Adapter, and battery packs test normal but the

•

computer will not power up, replace the Power Supply Board and/or Battery Board as described in Section 6.

5.3.2

If the LCD remains blank when you turn on the computer, and the status indicators light, check the following controls on the display (See Figure 3-1):

Troubleshooting a Display Problem

LCD standby mode - If the LCD backlight remains off, even with the Contrast

•

Control set to its highest position, the LCD may be in

Standby

Notebook Set for External Monito r- use CMOS Setup to reset notebook.

•

LCD - Replace the cover-display assembly as described in Section 6 of this

•

manual.

Low battery - Use a fully charged battery.

•

Power

button to power up the system.

Standby Mode

. Press the

5.3.3

When the computer is first powered up, it automatically performs a self-test of its central hardware and memory functions. During self-test (which lasts for a few seconds), the display shows copyright and version number information.

Note:

quences, su ch as this, you must press all three keys simultaneously.

Some procedures in this paragraph require you to use keystroke se-

Fault Isolation Using Selftest

Ctrl-Alt-Del

. To execute a keystroke seq u ence such as

5.3.3.1 Self Test Error Messages

Upon successful completion of the self-test, the computer automatically load s its operating system and other built-in utilities. If the self-test fails to complete successfully, the display shows one of the error messages described in Appendix A.

5.3.4

If an optional PCMCIA modem does not work properly, check the following items:

PCMCIA Modem Problems

Proper installation of any PCMCIA options (check Modem settings under

•

Control Panel).

Dialing problem or wrong number - Try dialing a number that you have

•

previously dialed successfully.

Faulty phone line - Connect a telephone to the line and listen for a dial tone.

•

Software program - Check to ensure that you have installed the software

•

correctly.

Troubleshooting

5-5

5.3.5

PC-Doctor supplied with the Extensa 450 Series Notebooks is a powerful diagnostics tool that can help you scan an internal RAM system for viruses, determine the hardware configuration of a local or remote system, benchmark its performance, analyze the performance of all subsystems, and perform a suite of interactive and non-interactive tests on attached devices. The test results are stored in a log which can be printed out (by pressing F2) or saved in a disk file (by pressing F3).

Features of the diagnostic program are accessed through a series of pull-down menus and basic keyboard keys (cursor keys to move highlighted pointer, Enter key to select a highlighted feature, ESC key to cancel a function and move back one level.

PC-Doctor is typically user friendly but if you don’t understand a feature, context-sensitive “help” information is available at any time by pressing the function key; pressing the F1 function key twice accesses the online Technical Reference Manual for PC-Doctor.

A powerful set of utilities within PC-Doctor (that can be run locally or remotely) simplify the task of determining system configuration data, allocating and using system memory, IRQ and DMA use, what device drivers are installed, what COM and LPT ports are assigned and what ports are available, identifying partitioning data for fixed disk drive(s), determining the VGA setup information, reading the software interrupts/interrupt vectors, etc.

Fault Isolation Using Diagnostics

Functionally, PC-Doctor includes the following:

Group of nine non-Interactive diagnostic tests that perform a non-destructive

•

test of the major hardware functions in the notebook (Pro cessor, Memory, System board, video section, serial and parallel ports (when loopback adapters are installed), hard disk and floppy disk.

Group of seven Interactive tests (require operator input) fo r test ing th e

•

keyboard, video sections, sound subsystem, mouse, joystick, diskette drive, printer subsystem and SCSI/CD-ROM Drive subsystems.

Utility that provides detailed system information such as configuration data,

•

allocation and use of system memory, IRQ and DMA use, what device drivers are installed, what COM and LPT ports are assigned and what ports are available, partitioning data for fixed disk drive(s), VGA setup informatio n, software interrupts and interrupt vectors.

Group of special purpose utilities to run other tests from PC-Doctor, perform a

•

virus scan of the internal RAM system, edit configuration files, surface scan hard drives, measure system performance, open a DOS prompt, pr ovides terminal access to devices connected to serial ports, supports memory debu g operations, enables remote operations, permits deep discharge of notebo ok batteries and provides an extensive test reporting function.

The PC-Doctor diagnostic program contains a group of nine non-Interactive diagnostics, available from the permits testing various hardwar e sectio ns without operator input. You can select one, several, or all tests from the Diagnostics menu. These tests are non-destructive; the serial and parallel port tests require disconnecting external

Diagnostics

heading in the main menu, that

Troubleshooting

5-6

devices from your notebook and installing loopback plugs. The Non-Interactive test categories include:

•

CPU and Co-Processor Tests

•

Base RAM memory test

•

System Board test

•

Video Test

•

Com1 and LPT1 serial port tests

•

Parallel Port Test

•

Fixed Disk test

•

Diskette Drive tests

•

Other devices (Sound card, PCMCIA options, etc.)

Interactive Tests

The PC-Doctor diagnostic test includes a suite of seven Interactive tests that require operator input during the course of the test. Th e includes:

Keyboard

•

Video

•

Speaker

•

Mouse

•

Joystick

•

and tests the joystick buttons

Diskette Drive

•

Maximum System Load

•

maximum extent possible for performing system “burn-in and test

Printer Test

•

SCSI Test

•

of a Docking System with SCSI)

- tests the keyboard keys, LEDs and repeat function

-tests the LCD and external VGA character sets, and colo rs.

-tests the volume response at different frequencies.

-tests the mouse driver, buttons and functionality

- calibrates the external joystick connected to the system

- checks diskette drive functionality

- thoroughly exercises system to the

- tests the operation of a connected printer

- sends test codes to attached SCSI devices (requires use

Interactive Tests

category

CD-ROM Test

•

attachment of a Docking System with CD-ROM capability)

- checks out any attached CD-ROM Drive (requires

Troubleshooting

5-7

Supporting Online documentation

The PC-Doctor Diagnostic contains the following online information sources:

Online Technical Manual- selected at any time by pressing F1 key twice or by

•

clicking on the Question Mark in the upper left hand corner of any PC-Doctor Menu

On-line Help system that provides context sensitive information from every

•

PC-Doctor screen- accessed by pressing F1 key once (pressing F1 twice gets you into the online manual)

5.3.5.1 User Interface to PC-Doctor

PC-Doctor is structured as a text-mode, windowed user interface with pull-down menus. Program operation requires the use of the following keys:

Cursor Keys- move the highlighted pointer

•

ENTER Key- Selects the highlighted option

•

ESC Key- Cancels current function and goes back one step

•

F1 Key- Activates the context-sensitive help feature (pressing F1 twice in a row

•

calls up the online Technical Reference Manual for PC-Doctor)

Scrolling windows, which show the results of various operations, use the following keys:

Page Up/Page Down- moves the screen one page at a time

•

F2- Prints the log to PRN

•

F3- saves the log to a file

•

You can also use the mouse or Point to interact with PC-Doctor. The leftmost key is used to choose objects (menu entries and action codes typically enclosed in brackets). The rightmost back to your previous step.

Select

key is equivalent to the ESC key which takes you

Select

5.3.5.2 Creating a Bootable Floppy Diskette

Prior to using PC-Doctor, create a bootable floppy diskette using the following procedure:

Troubleshooting

5-8

1. Power up the unit; when unit displays message, "Starting Windows 95", press F8. Choose Comm a nd Prompt Only from menu.

Using DOS, format a floppy diskette.

3. From the A: prompt, copy the basic MS-DOS files to the diskette using the following command:

Format A: /F:1440 /S

Where the value 1440 is the capacity of the diskette (1.44 MB in this example).

4. Get into the PC-Doctor directory ( type

5. Copy the PC-Doctor files to the bootable diskette using the following command:

XCOPY C:. A:.

After completion of this procedure, you should have a bootable diskette containing PC-Doctor.

CD C:\PCDR

and press

Enter

)

5.3.5.3 Running PC-Doctor

PC-Doctor is a DOS-resident program that can be run fr om either hard disk or from the bootable diskette you previously created.

. From the C:\ prompt change directory (type

. The Diagnostics Program loads into system memory, and the LCD displays the

diagnostics Header.

Note:

when starting up PC-Doctor to enable automatic virus scanning, enable loopback testing of serial/parallel ports, work from the remote menu if performing remote operations, etc. To get a listing of the available commandline switches, startup PC-Doctor with the following command:

There are a num ber of comman d -line switches that can be ent ered

CD C:\PCDR

) and press

Enter

PCDR /? and press Enter

Note:

must then use one of the standard virus detection and removal programs to remove the virus.

If PC-Doctor detects a virus, it will stop with an error message. Yo u

5.3.5.4 Quitting PC-Doctor

To exit PC-Doctor, Select the option.

Note:

ence manual for PC-Doctor.

For additional information, press

Quit

pull down menu and then select the

twice to access the online Refer-

Quit to DOS

Troubleshooting

5-9

Field Service

6.1

This section contains preventive and corrective maintenance procedures for the Extensa 450 Series Notebook Computers. The first part of the section describes the computer cleaning procedures and preferred handling procedures for sensitive components (e.g. disk drives, batteries).

The second part of the section identifies all field replaceable parts; the remainder of the section contains removal and replacement procedures for the field replaceable parts.

6.2

Preventive maintenance is limited to cleaning the plastic case, the keyboard, and the display screen.

6.2.1

Introduction

Preventive Maintenance

Cleaning the Computer

When it is necessary to clean the plastic case and keyboard, use a soft, lint-free cloth, slightly dampened with a mild detergent solution or use the contents of any commercially available computer cleaning kit.

Caution: Never use alcoho l, petr oleum-based s olv ents, o r har sh detergents to clean you r compu ter. Also never spra y an y liquids dire ctly on the computer case, keyboard, or screen. I f the liqui d-crystal di splay (LCD) screen has become smeared or dusty, clean the screen by first applying a mild glass cleane r to a s oft, clea n, li nt-free cloth , an d gently wipe the glass. Never apply liquids directly on th e screen su rface.

Caution : Do not use pa per towels to cle an the display scree n. Paper ca n scratch the display screen matte.

Field Service 6-1

6.2.2

To protect the disk drives and data, back up the system disk periodically on floppy diskettes. Periodically use a head-cleaning diskette in the floppy diskette drive to prolong the life of the drive and to help maintain data integrity.

6.2.3

The battery pack furn ished with the computer requires reasonable care and handling to ensure efficient operation and maximum life. Periodically inspect the battery terminals and the batteries for evidence of corrosion and oxide build-up; clean if necessary.

To ensure that the battery pack endures a normal life cycle, always observe the following precautions when handling the battery pack:

Do not drop the battery pack or subject it to excessive shock and vibr atio n.

•

Do not expose the battery pack to direct sunlight, moisture, or chemical

•

compounds.

Do not disassemble the battery pack.

•

Do not use the battery pack to power other devices.

•

Protecting the Disk Drives

Handling the Computer Battery Pack

Do not short the battery leads or connect the battery with reversed polarit y .

•

Never attempt to charge the battery pack in any way other than as described in

•

this manual.

Always charge the battery pack as soon as possible after a low battery

•

indication.

6.2.4

The hard drive on the notebook computer is factory loaded with Windows 95 and ready for operation. Supplied with the Windows 95 system is a facility for creating backup diskettes of the system software. In the event of a disk crash or other problem, you can use the Windows 95 Startup diskette to boot the unit and perform troubleshooting.

6.3

All notebook computer corrective maintenance procedures can be performed using the following tools: Tweezers

Small flat-blade screwdriver

•

Restoring System Software

Required Tools and Equipment

•

6-2 Field Service

Small Phillips screwdriver

Hexagonal Screwdriver

Plastic Stick

Caution: All boards, options and peripherals contain components that are sensitive to sta tic e lectrici ty. When handling any o f thes e i tems , pro tect against static ele ctricity by u sing wr ist or ankle g ro undin g s tra ps and grounded working mats. Wh en mov in g or s torin g items , us e the a ntistatic bags supplied with the items.

6.4

Notebook Field-Replaceable Parts and Assemblies

All members of the Extensa 450 Series Notebook Computers contain two major assemblies including the Cover Display Assembly (upper half of notebook computer) and the System Base Assembly (lower half of the notebook). Each of these two assemblies contain FRUs as described in the following subparagraphs.

6.4.1

As shown in Figure 6-1, the Cover-Display Assembly contains the LCD screen, Power Inverter Board, and Converter Board.,The DSSTN models also include a Slide Pot Board (not use d with the TF T models).

The Field Replaceable Units (FRUs) within the Cover Display Assembly are provided in Table 6-1.

Cover-Display Assembly

Note: FRU level part numbers are not available at time of publication of this manual. For required part numbers, reference the Field Service Bulletins (FSBs) for the Extensa 450 Series or contact Texas Instruments by dialing

Bezel (Remov ed for Cla rity )

LCD Cover

Slide Pot/Converter Board

Figure 6-1 Cover Display Assembly FRUs

1-800-TI TEXAS

Power Inverter Board

Field Service 6-3

Table 6-1 Cover Display Assembly, Field Replaceable Units (FRUs)

FRU Description Reference

Paragraph No.

Inverter Board, DSSTN

10.4" Inverter Board, TFT 9.4" 6.5.9 LCD Cover, TFT 9.4",

Display Assembly, 10.4" DSSTN 450

Display Assembly, 9.4" TFT 450T

Slide Pot Board, DSSTN

10.4" Converter Board, TFT

9.4"

6.4.2

As shown in Figure 6-2, the System Base Assembly houses a variety of field-replaceable subassemblies and components. The FRUs and paragraph references for removal/replacement procedures are listed in Table 6-2. Table 6-3 contains a listing of Customer (non-technical user) replaceable units (CRUs) and associated TI Part Numbers.

System Base Assembly

6.5.9 LCD Cover, DSSTN

6.5.8 Bezel, DSSTN 10.4",

6.5.9 Bezel, TFT 9.4", 450T 6.5.9

6.5.9 Bezel, TFT 9.4", 455T 6.5.9

FRU Description Reference

Paragraph No.

6.5.9

10.4", 450

6.5.9

450T

6.5.9

450

6.5.9

455

1-800-TI TEXAS

Figure 6-2 Base Assembly FRUs

6-4 Field Service

Table 6-2 Base Assembly, Field Replaceable Units (FRUs)

FRU Description Reference

Paragraph No.

Main Board Assembly 6.5.16 Touch Pad Assembly 6.5.11 Memory Board Assembly 6 .5.15 Heat Sink Assembly 6.5.6 Serial IR Board Assembly 6.5.12 HDD Cable 6.5.4 Primary Battery Board

Assembly Secondary Battery

Board Assembly Power Supply Board

Assembly Floppy Drive Assembly 6.5.3 Lower Case Assembly Ref Hard Disk Drive, 340

Million Byte, 12.5mm Keyboard Assembly 6.5.5

6.5.13 FDD Cable 6.5.4

6.5.17 HDD Cover Assembly 6.5.4

6.5.14 HDD Holder Assembly 6.5.4

6.5.4 Upper Case Assembly 6.5.10

FRU Description Reference

Paragraph No

Table 6-3 Notebook CRUs (Customer Replaceable Units)

CRU Description TI Part No. Reference

Paragraph No.

Internal Battery Pack, Ni-MH 9803928-0001 6.5.1 Battery Pack, Li-ION (Optio n ) 9803929-0001 6.5.3 4MB RAM Module 9803932-0001 6.5.7 8MB RAM Module 9803950-0001 6.5.7 16B RAM Module 9803933-0001 6.5.7 External Battery Charger 9803934-0001 Ref. Port Expander (T ravelBud) 9803935-0001 Sec. 2 Full Function Port Replicator 9803936-0001 Ref. PCMCIA Option 9803930-0001 Sec. 2

Field Service 6-5

6.5

Notebook Subassembly Removal and Replacement Procedures

The following paragraphs contain field service-level removal/replacement procedures for the Notebook.

Caution: Prior to removing an y of th e inte rnal FR Us i n the n oteboo k, remove the AC Adapter, battery, floppy and hard drives and all exte rnal options installed on the n oteboo k.

6.5.1

The procedure for removing and replacing the bat tery pack(s) is as follows:

1. Turn off the computer.

2. Locate the battery door (right side of notebook near the front) (see Figure 6-3).

Press the battery door inwards and slide the door toward the front of the notebook; remov e the ba tt e ry door.

Removing/Replacing the Notebook Battery Pack

3. Grasp the ribbon loop on the battery and pull the battery out of the compartment..

4. When replacing the battery, insert the end opposite the ribbon loop with the battery notches pointing upwards. Slide the battery into the compartment and replace the battery door.

6-6 Field Service

Figure 6-3 Removing Battery and Disk Drives

6.5.2

The procedure for removing and replacing the PC MCIA options is as follows:

1. Turn off the computer.

2. Remove the PCMCIA device(s).

3. To replace the PCMCIA Device, open the cover door and insert the device.

Reinstall any external cabling required for the device.

6.5.3

To remove and replace the Floppy Drive, perform the following proced ure:

1. Remove the battery as described in Paragraph 6.5.1 above.

2. Turn the notebook over so that the bottom is facing up and the floppy drive is on

the right side. Lay the notebook on a padded, flat work sur face.

3. Locate the Floppy Release Button near the center of the notebook (Figure 6-3).

Removing/Replacing PCMCIA Options

Removing/Replacing the Floppy Drive

Caution: When remo ving the Floppy Drive As semb ly, grasp it by its sides; otherwise dama ge to the f loppy dri ve can occu r.

4. Push the Floppy Release Button toward the front of the notebook and simultaneously pull outwards on the floppy drive by placing your thumb over the ribbed outer edge of the floppy drive assembly. When the floppy drive is released, grasp the assembly by the two sides and remove the assembly from the notebook.

5. The Floppy Drive Assembly can be further disassembled by removing the Phillips-head screws from the sides of the floppy drive assembly; lifting off the cover and lifting out the floppy drive and cable connector (ZIF Connector type). Unplug the cable at the ZIF Connector .

Note: When reassembling the floppy drive, it’s easier to install the shield on the floppy drive before installing the drive into the plastic housing.

6.5.4

The procedure for removing and replacing the Har d Drive assembly is as follows:

Removing/Replacing the Hard Drive

1. Power down the notebook, remove the battery packs, and disconnect the AC Adapter, if installed.

2. Disco nnect any perip h eral device interface cables from the external interface connectors and remove any installed PCMCIA options.

Field Service 6-7

3. Turn the computer over so that the Hard Drive panel is on your right side (See Figure 6-3). Press down on the circular bu mp with your thumb to release the hard drive cover; remove the cover and lay aside for later reinstallation.

4. Using finger pressure, slide the metal cover downwards toward the edge of the notebook; then lift upwards to remove the metal cover.

5. Insert a small blade straight slot screwdriver into the recess in the plastics and gently lift the frontmost edge of the driv e out of the bay.

6. Lay the hard drive on its back.Then using a small straight slot screw driver, gently pry on each end of the connector on the Disk Drive and rock it back and forth until the connector is removed from the drive assembly.

7. Replacement is essentially the reverse of steps 1 through 6.

6.5.5

The procedure for removing and replacing the keyb oard assembly is as follows:

1. Turn off the computer and disconnect the ac power adapter (if it is attached).

2. The top edge of the keyboard is held in place by plastic tabs beneath the CTRL

and Right Arrow Keys. Pull the tabs toward the front of the not e book (tabs snap into an 1/8 inch recess in the plastics).

3. Using a small straight-blade screwdriver, lift the front edge of the keyboard upwards.

4. Lift the front edge of the keyboard slightly and gently pull the keyboard towards the front of the notebook exposing two cables that connect the keyboard to the main board.

5. Release the two ZIF (zero insertion force ) connectors using a plastic stick or other nonmetallic object and remove the cables from the main board connectors

6. Remove the keyboard assembly from the notebook.

7. When installing the replacement keyboard, essentially reverse the above

procedures.

6.5.6

Removing/Replacing the Keyboard Assembly

Removing/Replacing the Heat Sink

To remove and replace the heat sink, per f orm the following procedure:

1. Remove the keyboard assembly as described in paragraph 6.5.5.

2. Remove the two Phillips-head screws that secure the heatsink to the main board

3. Lift upwards on the heatsink and remove it from the base.

4. Replacement is the reverse of steps 1 through 3 above.

6-8 Field Service

(note that one of the screws is located near the HDD connector).

6.5.7

Removing/Replacing Dual Inline Memory Modules (DIMMS)

To remove and replace the expansion memory, use the following pr ocedure:

1. Loosen the keyboard assembly (but do not disconnect keyboard cables) as described in steps 1 through 5 of Paragraph 6.5.5).

Remove the Heatsink as described in Paragraph 6.5.6.

3. Using the back edge of the keyboard as a hinge, lift the front edge of the keyboard up and lay it against the LCD assembly.

4. Push the two metal springs away from the board edge and remove the DIMMS board.

5. When installing a DIMMS board, insert the edge of the board into the rear of its connector using a slight rocking motion at an angle to the surface of the board.

6. Once the DIMM is fully inserted in the connector , push downwards on bo th sides of the board to snap it in place.

Figure 6-4 Removing/Replacing Expansion RAM

Field Service 6-9

6.5.8

Removing and Replacing the Cover-Dis pl ay Assembly

To remove the cover-display assembly, perform the following proced ur e:

1. Remove the keyboard and heatsink as described in paragraphs 6.5.5 and 6.5. 6 respectively.

2. Remove the cable cover below the display by lifting upwards on the front edge of the cover.

4. Unplug the video cable that mates with the Main Board.

5. With the main video cable out of the way, two smaller cables are visible. Unplug

the rightmost cable.

6. Using a plastic stick, slide the right and left hinge covers away from the base assembly.

9. Reinstallation of the Display Assembly is the reverse of steps 1 through 8 above.

Lay the display completely back and remove the four screws that secure the

display hinges to the base case assembly

Ensure that the display cables are free from the top case assembly and remove

the display assembly.

6.5.9

To remove and replace the Inverter Board assembly, perfor m the following procedure:

Caution: If the notebook is pow ered up wi th the LCD be zel remove d, you can be exposed to high vo ltag es wh ich could re sult in sh ock a nd equipment damage. Ensure that the batteries and AC adapter ar e removed from the notebook when work ing o n the LCD/Di splay a ssembly.

1. Use a narrow piece of plastic or pointed tweezers to apply light pressure to one edge of the lower screw covers. The lower screw covers will bow outwards and can be removed.

2. Remove the rubber upper screw covers using a pair of tweezers.

3. Remove the six screws that secure the bezel to the display assembly (a small

Phillips-head screwdriver is recommended for removing the two screws at the top of the bezel).

4. Pull on the inside edges of the bezel; remove bezel and lay aside for later reinstallation.

Removing and Replacing the Inverter Board

5. Peel back the EMI shield along the right side of the display to expose the Inverter

6. Disconnect the connectors at the top and bottom of the Inverter Board.

7. Use the small Phillips-head screwdriver to remove the two screws holding the

6-10 Field Service

Board.

Inverter Board; remove the Inverter Board Assembly.

8. Reinstallation of the Inverter Board is the reverse of steps 1 through 7 above.

6.5.10

To remove/replace the Top Case Assembly, perform the following procedure:

1. Remove the Keyboard Assembly and Heat Sink Assembly as described in Paragraphs 5. 5.5 and 5.5.6.

2. Remove the four screws that secure the Top Case Assembly to the base. Note that the screw at the rear of the opening is shorter than the remaining three screws.

3. Using a plastic stick, unlock the ZIF connector located near the glide pad and remove the cable from the connector.

4. Remove the cable cover below the display by lifting upwards on the front edge of the cover.

5. Turn the notebook over and remove the six Phillips-head screws from the bottom of the notebook.

6. Rotate the notebook so that the rear of the unit is facing you; remove the rear door assembly by bowing it outwards.

7. Several recesses are located just above the two rear connectors. Use a small flat-blade screwdriver to disengage the snaps associated with the right and left recesses.

8. Lift and push the Display Assembly forward to disengage it from the Base Assembly.

Opening/Replacing the Top Case Assembly

9. Replacement of the Top Case Assembly is the reverse of steps 1 through 8 above.

6.5.11

Removing/Replacing the Touch Pad Assembly

To remove and replace the Touch Pad Assembly, perfor m the following pr ocedure:

1. Remove the Top Case Assembly as described in the previous paragraph.

2. Turn the Top Case Assembly over and remove the four screws that secure a metal

shield to the plastics.

3. Lift the plastic frame that rests on top of the touch pad.

4. Unplug the flex cable from the connector on the touch pad. Note that the board

connector is a LIF (Low insertion force) type; the cable is held in place by friction.

5. Slide the board assembly to the right and remove from th e un it.

6. Replacement of the Touch Pad Board Assembly is essentially the reverse of Steps

1 through 5 above.

Field Service 6-11

Figure 6-5 Touchpad Removal/Replacement

6-12 Field Service

6.5.12

To remove and replace the SIR Board, perform the following pro cedu re:

1. Remove the Top Case Assembly as described in paragraph 6.5.10.

2. Unplug the SIR Board cable connector from the Main Board (small leftmost cable

connector at J8 as shown in Figure 6-6).

3. Remove the SIR Board from the notebook.

4 Replacement is essentially the reverse of steps 1 through 3 above.

Removing/Replacing the SIR Board

Figure 6-6 SIR Board Removal/Replacement

Field Service 6-13

6.5.13

Removing/Replacing the Primary Battery Board

To remove and replace the Primary Battery Board, perform the fo llowing procedure:

1. Remove the Top Case Assembly as described in paragraph 6.5.10.

2. Disconnect the cable located next to the HDD Connector.

3. Remove the two screws that secure the board to the plastics and remove the

board.

4. Replacement is essentially the reverse of steps 1 through 3 above.

Note:

to ensure that the connector slots properly align with the battery slots.

When reinstalling the Primary Battery Board, use the battery pack as a guide

6-14 Field Service

Figure 6-7 Primary Battery Board Replacement

6.5.14

Removing/Replacing the Power Supply Board Assembly

To remove and replace the Power Supply Board Assemb l y, perfor m the following procedure:

1. Remove the Top Case Assembly as described in paragraph 6.5.10.

2. Remove the metal shield that covers the Power Supply Board.

3. Using a plastic stick, lift up on the end of the board that is adjacent to the

processor. The board assembly snaps out. Remove board from unit.

4. Replacement is essentially the reverse of steps 1 through 3 above.

Figure 6-8 Power Supply Board Removal

6.5.15

To remove and replace the Memory Board Assembl y, perfor m the following procedure:

1. Remove the AC Adapter, Battery Pack, Hard Disk Drive and Floppy Disk Drive from the unit.

Removing/Replacing the Memory Board

Field Service 6-15

2. Remove the Top Case Assembly as described in Paragraph 6.5.10.

3. Using a plastic stick, lift up on the left and right edges of the board. The board

assembly snaps out. Lift the board out of the unit.

4. Reassembly is the reverse of steps 1 through 3 above.

Figure 6-9 Memory Board Removal

6.5.16

To remove and replace the Main Board Assembly, perform the following procedure:

1. Remove the AC Adapter, Battery Pack, Hard Disk Drive and Floppy Disk Drive from the unit.

2. Remove the keyboard assembly as described in Paragraph 6.5.5

3. Remove the Heatsink as described in paragraph 6.5.6.

4. Remove the Power Supply Board as described in paragraph 6.5.14.

5. Remove the Memory Board as described in paragraph 6.5.15 .

6 Disconnect all interboard cable connectors (SIR Board Connector from J9;

Primary Battery Board Connector from J15, etc.

7 Using a small flat blade screwdriver and apply light pressure in a rocking

motion to remove the hard drive cable connector.

8 Remove the three large Phillips-head screws (one near the 25-pin parallel port and

two screws near the floppy connector. Do not remove the smaller

Removing/Replacing the Main Board

6-16 Field Service

Phillips-head screws as they are part of the PCMCIA connector hardware.

9. Using a 5 mm hex driver, remove the hex nut adjacent to the display cable connectors.

10. Lift up along the front edge of the Main Board Assembly until it clears the hard drive cavity; then pull the board forward and out of the plastics.

11. Remove the secondary Battery and transfer to the replacement Main Board (reference Paragraph 6.5.17).

12 Reassembly is essentially the reverse of steps 1 through 10 above.

Figure 6-10 Main Board Removal/Replacement

6.5.17

Removing/Replacing the Secondary Battery Board

To remove and replace the Secondary Battery Assembly, per form the following procedure:

Field Service 6-17

1. Remove the Main Board Assembly as described in paragraph 6.5.16.

2. Carefully slide the secondary Battery Board Assembly from its right angle

connector and remove board from unit.

Replacement is the reverse of steps 1 and 2 above.

Figure 6-11 Secondary Battery Board

6-18 Field Service

Appendix A

Self-Test Error Messages

A.1

This appendix contains reference data useful in diagnosing and correcting self test errors.

Introduction

Table A-1 Self-Test Error Messages

Error Message Corrective Action

CMOS Battery Bad Replace Main Board CMOS Checksum Error Cycle power to Notebo ok; if

problem persi sts Disk Boot Failure Insert a system disk in drive A Diskette Drive Controller Error or No

Controller Present Diskette Drive Error Insert Diskette and retry; if

Diskette Drive Type Mismatch Press Ctrl-Alt-Esc to reconfigure

Cycle power to Note book; if

problem persi sts

the system. Equipment Configuration Error Press Ctrl-Alt-Esc to reconfigure

the system. Hard Disk 0 Error Cycle power to Notebo ok ; if

problem persi sts Hard Disk 0 Extended Ty pe Error. Cycle power to Note book; if

problem persists, replace Hard

Drive Insert system diskette and press key to

reboot I/O Parity Error Cycle power to Notebo ok ; if

Keyboard Error or No Keyboa rd Co nnected

Insert a system disk in drive A

problem persi sts

Cycle power to Note book; if

problem persi sts

Error Messages

A-1

Error Message Corrective Action

Keyboard Interface Error Cycle Power to Notebook. If

problem persi sts Memory Size Mismatch Enter and then exit the System

Configuration Setup in the Setup

utility. Missing operating system Correct the HDD type and reboot.

Refer to the specification label

pasted on the back side of the

notebook or attached to hard disk

drive. Non-system disk or disk error. Replace

and strike any key when ready Pointing Device Error Cycle Power to Notebook; if

Pointing Device Interface Error . Cycle Power to Notebook; if

Protected Mode Test Fail Cycle power to Notebook RAM BIOS Bad Cycle power to Notebo ok RAM Parity Error. Cycle power to Notebook if problem

Real-Time Clock Error Press Ctrl-Alt-Esc to reconfigure

Video RAM BIOS Bad Cycle power to Notebook

Insert a system disk in drive A and

press any key

problem persi sts

problem persists, open up the

notebook and check the touchpad

cabling

persists

the system.

Error Messages

A-2

Table A-2 POST Checkpoint List

Checkpoint

Description

No.

D4h Normal POST start FCh CMOS and BIOS ROM checksum test skip or

complete 01h 80286 register test in-progress 02h CMOS write/read test in-progress or failure 03h BIOS ROM checksum in-progress or failure 04h Programmable Interval Timer test in-progress or

failure

Checkpoint

Description

No.

D4h Normal POST start 06h DMA page register write/read test in-progress or

fail 08h RAM refresh verification in-progress or failure 09h 1st 64K RAM test in-progress 0Ah 1st 64K RAM chip or data line failure - multi-bit 0Bh 1st 64K RAM odd/even logic failure 0Ch 1st 64K RAM address line failure 0Dh 1st 64K RAM parity test in_progress or failure 10h 1st 64K RAM chip or data line failure bit 0 20h Slave DMA register test in-progress or failure 21h Master DMA register test in-progress or failure 22h Master interrupt mask register test in-progress

or fail 23h Slave interrupt mask register test in-progress or

fail 25h Interrupt vector loading in-progress 27h Keyboard controller test in-progress or failure 28h CMOS power-fail and checksum checks in-

progress 29h CMOS config info validation in-progress 2Bh Screen memory test in-progress or failure 2Ch Screen initialization in-progress or failure 2Dh Screen retrace tests in-progress or failure 2Eh Search for video ROM in-progress 30h Screen believed operable: 34h Timer tick interrupt test in_progress or failure 35h Shutdown test in_progress or failure 36h Gate A20 fa il ure 37h Unexpected interrupt in protected mode 38h RAM test in_progress or failure above address

0FFFFh

Error Messages

A-3

Checkpoint

Description

No.

D4h Normal POST start 3Ah Interval timer channel 2 test in_progress or

failure 3Bh Time-Of-Day clock test in_progress or failure 3Ch Serial port test test in_progress or failure 3Dh Parallel port test test in_progress or failure 3Eh Math Coprocessor test in_progress or failure 50h Initial M1429 52h Dynamic Memory Configuration & check

external Cache size 53h Shadow BIOS 54h Perform PCI device initialization 55h Check CMOS checksum 56h Check CMOS config against actual 57h Enable/disable enternal cache 5Fh Initial PnP device nodes 90h Enable/disable external cache 70h For PCI 71h For PCI 72h For PCI 73h For PCI 74h For PCI 75h For PCI 76h Begin PCI devices initialization 77h Configures PCI VGA devices 78h Except VGA 79h Begin PCI service routines

Error Messages

A-4

7Ah PCI Option ROM initialization E0h Shadow PCI non-VGA option ROM E1h Shadow PCI VGA option ROM to C000 segment E3h Start to find PCI option ROM E4h Begin to shadow PCI option ROM

Checkpoint

Description

No.

D4h Normal POST start 1Fh Begin to configures PCI VGA devices D1h Allocate Space for optio n ROM

Error Messages

A-5

Appendix B

Connector Pinouts

B.1

This appendix contains connector pinout data for the Extensa 450 Series Notebook Computers.

Table B-1 PS/2 Mouse/Keyboard Port (J2) Pin Assignments

Pin No.

1DATA 4VCC 2 XDATA 5 CLOCK 3 GND 6 XCLOCK

Pin No.

1 -Strobe 14 -Auto line feed

Introduction

Pin Name Pin

No.

Table B-2 Parallel Port (J3) Pin Assignments

Pin Name Pin

No.

Pin Name

2 Data0 15 -Error 3 Data1 16 -Initialize 4 Data2 17 -Select in 5 Data3 18 GND 6 Data4 19 GND 7 Data5 20 GND 8 Data6 21 GND 9 Data7 22 GND 10 -Acknowledge 23 GND 11 Busy 24 GND 12 Paper Em pty 25 GND 13 Select

Connector Pinouts

B-1

Table B-3 LCD VR Board Connector Pin Assignments

PinNoPin Name Pin

Pin Name

1 DCBATIN 5 GND 2 CCFT_ON 6 CCFTID 3FPVEE 7 GND 4LCDVEE

Table B-4 SIR Connector (J8) Pin Assignments

Main Board Pin No

1 VCC SIR Input 1 VCC 2N.C. 2 GND 3 DSR2# SIR Output 3 SIR_RXD

Pin Name I/O SIR

Board Pin No

Pin Name

4 DTR2# SIR Input 4 SIR_TXD 5 SIR_E N SIR Input 5 SIR_EN 6 N.C. 6 N.C. 7 N.C. 7 N.C. 8 N.C. 8 N.C.

Connector Pinouts

B-2

Table B-5 LCD Signal Connector (J12) Pin Assignments

PinNoPin Name Pin

Pin Name

1N.C. 21PLD16 2 LCD+5 22 PLC17 3N.C. 23PLD18 4PMOD 24PLD19 5GND 25GND 6PSLD3 26PLFS 7PSLD2 27PLP 8 PSLD1 28 PSHFCLK 9 PSLD0 29 DISPLAY 10 PSUD7 30 LCD+5 11 PSUD6 31 GND 12 PSUD5 32 LCDVEE 13 PSUD4 33 PUD0 14 GND 34 PUD1 15 GND 35 PUD2 16 N.C 36 PUD3 17 PLD23 37 PLD0 18 PLC22 38 PLD1 19 PLD21 39 PLD2 20 PLD20 40 PLD3

Connector Pinouts

B-3

Table B- 6 FDD Connector (J11) Pin Assignments

PinNoPin Name PinNoPin Name

1 VCC 11 GND 2 INDEX# 12 WDATA# 3 VCC 13 GND 4DR0# 14WGATE# 5 VCC 15 TRK0# 6 DSKCHG 16 WRTPRT# 7 MTR0# 17 GND 8 FDIR 18 RDATA# 9 3_MODE 19 INTFDD# 10 STEP# 20 HESEL

Table B- 7 PCMCIA Connector (J21) Pin Assignments

Pin No

21 B_IOWR# B_IOWR# 22 B_A17 N.C. 23 B_A18 N.C. 24 B_A19 N.C. 25 B_A20 N.C. 26 B_A21 N.C. 27 B_VCC B_VCC 28 B_VPP2 N.C. 29 B_A22 N.C. 30 B_A23 B_VU 31 B_A24,B_M/S

PC Card Interface Function

ATA Interface Function

Connector Pinouts

B-4

32 B_A25 B_CSEL 33 N.C N.C. 34 B_RESET B_RESET 35 B_WAIT# B_IOCHRDY

Pin No

36 B_INPACK# 37 B_REG#, 38 B_SPKR# B_LED 39 B_STSCHG# B_PDIAG 40 B_D8 B_D8 41 B_D9 B_D9 42 B_D10 B_D10 43 B_CD2# B_CD2# 44 GND GND 45 PCMCIA#, 46 GND, 47 GND,

PC Card Interface Function

ATA Interface Function

48 B_D3 B_D3 49 B_CD1# B_CD1# 50 B_D4 B_D4 51 B_D11 B_D11 52 B_D5 B_D5 53 B_D12 B_D12 54 B_D6 B_D6 55 B_D13 B_D13 56 B_D7 B_D7 57 B_D14 B_D14 58 B_CE1# B_CS0 59 B_D15 B_D15 60 B_A10 N.C. 61 B_CE2# B_CS1# 62 B_OE# 0 63 N.C. N.C. 64 B_A11 N.C. 65 B_IORD# B_IORD# 66 B_A9 B_CS1

Connector Pinouts

B-5

Pin No

67 B_A8 N.C. 68 B_A13 N.C. 69 B_A14 N.C. 70 B_WE# N.C. 71 B_IREQ# B_IREQ 72 B_VCC B_VCC 73 B_VPP1 N.C. 74 B_A16 N.C. 75 B_A15 N.C. 76 B_A12 N.C. 77 B_A7 N.C. 78 B_A6 N.C.

PC Card Interface Function

ATA Interface Function

79 B_A5 N.C. 80 B_A4 N.C. 81 B_A3 N.C. 82 B_A2 B_A2 83 B_A1 B_A1 84 B_A0 B_A0 85 B_D0 B_D0 86 B_D1 B_D1 87 B_D2 B_D2 88 B_IOIS16# B_IOCS16# 89 GND GND 90 N.C. N.C.

Connector Pinouts

B-6

Table B-8 Memory Board Connector Pin Assignments (J13)

Main Board Pin No

1 BRAS3# Output 1 BRAS3# 2 BRAS2# Output 2 BRAS2# 3 BMA10 Output 3 BMA10 4 BMA9 Output 4 BMA9 5 BMA4 Output 5 BMA4 6 BMA1 Output 6 BMA1 7 BMA2 Output 7 BMA2 8 BMA3 Output 8 BMA3 9 BCAS1# Output 9 BCAS1# 10 BRAS0# Output 10 BRAS0# 11 BCAS0# Output 11 BCAS0# 12 BRAS1# Output 12 BRAS1#

Main Board Pin Name

Main Board I/O

Memory Board Pin No.

Memory Board Pin Name

13 BWE# Output 13 BWE# 14 BCAS3# Output 14 BCAS3# 15 BCAS2# Output 15 BCAS2# 16 BMA0 Output 16 BMA0 17 BMA8 Output 17 BMA8 18 BMA5 Output 18 BMA5 19 BMA6 Output 19 BMA6 20 BMA 7 Output 20 BMA 7 21 VCC Output 21 VCC 22 VCC Output 22 VCC 23 VCC Output 23 VCC 24 GND -- 24 GND 25 GND -- 25 GND 26 GND -- 26 GND 27 N.C. -- 27 N.C. 28 N.C. -- 28 N.C. 29 BHD30 I/O 29 BHD30 30 BHD31 I/O 30 BHD31

Connector Pinouts

B-7

Main Board Pin No

31 BHD29 I/O 31 BHD29 32 BHD28 I/O 32 BHD28 33 BHD27 I/O 33 BHD27 34 BHD26 I/O 34 BHD26 35 BHD25 I/O 35 BHD25 36 BHD24 I/O 36 BHD24 37 BHD23 I/O 37 BHD23 38 BHD22 I/O 38 BHD22 39 BHD21 I/O 39 BHD21 40 BHD20 I/O 40 BHD20 41 BHD19 I/O 41 BHD19 42 BHD18 I/O 42 BHD18

Main Board Pin Name

Main Board I/O

Memory Board Pin No.

Memory Board Pin Name

43 BHD17 I/O 43 BHD17 44 BHD16 I/O 44 BHD16 45 BHD15 I/O 45 BHD15 46 BHD14 I/O 46 BHD14 47 BHD13 I/O 47 BHD13 48 BHD12 I/O 48 BHD12 49 BHD11 I/O 49 BHD11 50 BHD10 I/O 50 BHD10 51 BHD9 I/O 51 BHD9 52 BHD8 I/O 52 BHD8 53 BHD7 I/O 53 BHD7 54 BHD6 I/O 54 BHD6 55 BHD5 I/O 55 BHD5 56 BHD4 I/O 56 BHD4

Connector Pinouts

B-8

57 BHD3 I/O 57 BHD3 58 BHD2 I/O 58 BHD2 59 BHD1 I/O 59 BHD1 60 BHD0 I/O 60 BHD0

Table B-9 Memory Board Connector Pin Assignments (J10)

Main Board Pin No.

1 KMCLK Output 1 KMCLK 2 KMDATA I/O 2 KMDATA 3 KBDATA I/O 3 KBDATA 4 KBCLK Output 4 KBCLK 5XD0I/O5XD0 6XD1I/O6XD1 7XD2I/O7XD2 8XD3I/O8XD3 9XD4I/O9XD4 10 XD5 I/O 10 XD5 11 XD6 I/O 11 XD6 12 XD7 I/O 12 XD7

Main Board Pin Name

Main Board I/O

Memory Board Pin No.

Memory Board Pin Name

13 IRQ1 Input 13 IRQ1 14 IRQ12 Input 14 IRQ12 15 RST0# Output 15 RST0# 16 GND -- 16 GND 17 KBCS# Output 17 KBCS# 18 GND -- 18 GND 19 SA2 I/O 19 SA2 20 CLK7M Output 20 CLK7M 21 GND -- 21 GND 22 TPDATA I/O 22 TPDATA 23 TPCLK Output 23 TPCLK 24 SSEIN# Input 24 SSEIN# 25 S0VSW# Input 25 S0VSW# 26 GND 26 -- GND 27 SETUP# Input 27 SETUP# 28 IOW# I/O 28 IOW# 29 IOR# I/O 29 IOR#

Connector Pinouts

B-9

Main Board Pin No.

30 GND -- 30 GND 31 VCC Output 31 VCC 32 HDD_LED# Output 32 HDD_LED# 33 SLPLED Output 33 SLPLED 34 M/K# Output 34 M/K# 35 VCC Output 35 VCC 36 VCCSB Output 36 VCCSB 37 SYSREST Output 37 SYSREST 38 BT2_QCH G Output 38 BT2_QCHG 39 BT1_QCH G Output 39 BT1_QCHG 40 VCC Output 40 VCC 41 LED# Output 41 LED#

Main Board Pin Name

Main Board I/O

Memory Board Pin No.

Memory Board Pin Name

42 AD5V Out put 42 AD5V 43 VCC Output 43 VCC 44 N.C. -- 44 N.C. 45 VCC Output 45 VCC 46 N.C. -- 46 N.C. 47 N.C. -- 47 N.C. 48 N.C. -- 48 N.C. 49 N.C. -- 49 N.C. 50 N.C. -- 50 N.C. 51 N.C. -- 51 N.C. 52 N.C. -- 52 N.C. 53 N.C. -- 53 N.C. 54 N.C. -- 54 N.C. 55 N.C. -- 55 N.C.

B-10

56 N.C. -- 56 N.C. 57 N.C. -- 57 N.C. 58 N.C. -- 58 N.C. 59 N.C. -- 59 N.C. 60 N.C. -- 60 N.C.

Connector Pinouts

B-11

PC-Doctor Diagnostics

C.1 Introduction

The Extensa Series Notebooks are shipped with PC-Doctor, a powerful diagnostics tool that can help you determine the hardware configuration of a local or remote system, benchmark its performance, analyze the performance of all subsystems, and perform a suite of interactive and non-interac tive tests on a ttached devices (such as pri nters, joystick devices, VGA monitors, SCSI devices, CD-ROM drives). The test results are stored in a log which c a n be printed o ut (by pressing F2) or saved in a disk file (by pressing

Features of the diagnostic program are accessed through a series of pull-down me nus and basic keyboard keys (cursor keys to move highlighted pointer, function and move back one level.)

PC-Doctor is typically user friendly but if you don’t understand a feature, context-se nsitive “help” information is available at any time by pressing the

Technical Reference Manual for PC-Doctor.

Enter

function key; pressing the F1 function key twice accesses the online

key to select a highlighted feature,

ESC

key to cancel a

C.2 Starting PC-Doctor

PC-Doctor comes pre-installed on your Extensa Series Notebook Computer. To run the utility, reboot your computer.

The system continues the boot process and automatically displays the PC-Doctor Diagnostics main menu.

Diagnostics

C-1

C.3 Keyboard Navigation

The keys shown in Table C-1 can be used to navigate through the PC-Doctor menus:

Table C-1 PC-Doctor Key Assignments

Key Description

Cursor Keys Moves the highlighted pointer.

ENTER ESC

(twice)

PageUp/PageDn

In addition, when you select Selection M enu that appea rs uses the key s listed in Table C-2:

Table C-2 Test Selection Menu Special Keys

Key Description

Space Bar Enables/Disables the selected test.

Selects the highlighted option. Cancels current functio n a nd goes back

one step. Activates co ntext-sensitive help.

Activates the on li ne documentation.

Moves the screen one page at a time Prints the lo g.

All Tests

from the Diagnostics menu, the Test

C-2

Diagnostics

ENTER

F2 F5

F10

Enables/Disables the selected test. Activates Test Options Menu

Runs the select ed tests. Disables all tests.

C.4 Mouse Navigation

You can also use a mouse with the user interface. Use the left mouse button to choose object s (menu entries and action co des in square brackets). Use the right mo u s e button as you would the you back to your previous step. Click on the ? in the upper left corner of the screen for context-sensitive help Menus.

ESC

key to take

C.5 PC-Doctor Menus

There are severa l selections a vailable from the menu bar o f the PC-Doct o r Diagnostics main menu. These include:

•

Diagnostics

•

Interactive T ests

•

Hardware Info

•

Utility

•

Quit

•

C.5.1 Online Help (?)

To obtain context sensitive help from any menu, press F1. Pressing twice (or clicking on the question mark in the upper left-hand corner of the menu) provides you with complete online documentation.

C.5.2 Diagnostics

The Diagnostics menu allows you to run non-destructive tests with little or no operator interaction. Options available from the PC-Doctor Diagnostics Menu include:

System Test - tests all majo r aspects of the system ex cept those found

•

in Memory, Hard Disk, Floppy Disk, and the Miscellaneous Test categories.

Memory Test - tests all types of main memory in the system including

•

base, extended, expanded, and upper memory block (UMB) memory.

Hard Disk Test - tests all hard disk drives in the system that are either

•

IDE or provide a BIOS command interface.

Floppy Disk Test - tests all floppy disk drives in the system.

•

All Tests - allows you to select which te sts to run. Y o u can also specify

•

special testing options. By pressing F2, the following options are available:

Halt On Errors - interrupts testing if an error is detected.

•

Note:

provided with this software).

External serial and parallel port testing requires loopback plugs (not

External Loopback - tests external loopback of COM and LPT ports.

•

You can select the type of loopback adapter you want to use.

Diagnostics

C-3

Pass Count - selects how m a ny times tests are repeated. The highest

•

limit is 9999 times. Test Logging - o pens the Log Opt ions menu that lets you def i ne how

•

test results are printed or stored to a file during testing. By default, PC-Doctor produces a test result file at the end of testing if an error was detected.

Switch LCD - lets you change your video output to either the internal

•

LCD, external monitor, or simulscan mode. If your system does not support simulscan, both th e e x te rnal monitor and the bu i lt -in LC D screen go blank.

Cache Control - allows you to leave the level 1 and level 2 cache

•

enabled during memory testing. This assists in tracking down cache timing issues.

C.5.3 Interactive Tests Menu

Interactive tests are diagnostics that need user interaction to complete. Interactive tests include:

Keyboard - tests the keyboard keys, LEDs, and repeat rate

•

Video - tests the character sets, colors, monitor, and VGA

•

Speaker - tests the volume response at different frequencies

•

Mouse - tests the mouse driver, buttons, and functionality

•

Joystick - calibrates the joystick and tests the buttons. During the test,

•

the joystick(s) should fir st be calibrated. To calib r ate the joysti ck, move the stick to the extremes in each direction. PC-Doctor registers the coordinate da ta and adjusts the screen d isplay accordingly.

Diskette Driv e - checks diskette drive functionality

•

Maximum System Load - burn-in tests a system. This function

•

simulates th e operating c o nditions that are produc ed by operati ng systems such a s OS/2 and Windo ws NT. Some s ystems are not compatible with the Maximum system Load test.

Printer Test - tests for the correct acceptance and execution of common

•

printer control commands. Printer test information is stored in printer test files with an ex tension of .PDP.

SCSI Test - PC-Doctor contains SCSI device testing features that work if

•

you have an ASPI or CAM device driver loaded. You can select which SCSI host adapter to work with if you have more than one SCSI adapter present.

C-4

Diagnostics

CD-ROM Test - tests CD-ROM drives using the Microsoft CD-ROM

•

Extensions (MSCDEX) and the standard CD-ROM device drivers.

C.5.4 Hardware Info Menu

This menu contains functions that determine and report on the setup of the computer. None of these f u nctions perform diagnost ic tests; howe ver any errors are included in the reports. The following functions are available from the Hardware Info menu:

System Configuration - lists main system configuration data.

•

Memory Contents - shows allocation and use of system memory

•

IRQ and DMA use - identifies interrupts for all standard IRQ and DMA

•

devices

Device Drivers - shows al l essential da ta on DOS resident and

•

installable d evice drivers

COM and LPT ports - displays information about the installed serial and

•

parallel ports. Only ports that are identified by BIOS are listed

Physical Disk Drives - shows the basic characteristics for each installed

•

fixed disk drive including the contents of partition tables

Logical Disk Drives - displays information about each drive that is

•

available and has a disk in it. If Stacker or DoubleSpace disk compression software has been installed, details about each “stacked” or “doubled” drive is shown

VGA Information - identifies the type of installed VGA chip

•

Software Interrupts - displays software interrupt vectors and the area of

•

memory they point to

SCSI Devices - lists information about SCSI devices and interface cards

•

if a CAM or ASPI compliant SCSI device driver is present

C.5.5 Utility Menu

PC-Doctor has a dedicated menu for utility functions. These functions include:

Run External Tests - runs other programs from PC-Doctor

•

Edit CMOS RAM - gives access to CMOS RAM data

•

File Editor - allows editing of configuration files

•

Surface Scan Hard Disk - checks for defects on the hard disk

•

Benchmark System - measures system performance

•

DOS Shell - opens a DOS prompt from within PC-Doctor

•

Terminal - gives access to devices connected to a serial port (such as a

•

modem)

Diagnostics

C-5

Memory Debugger - displays memory contents in either hexadecimal,

•

decimal, or ASCII form

Remote Operation - enables remote control if available

•

Tech Support Form - allows you to collect information about the current

•

system

Battery Rundown - quickly deep-discharges the NiMh battery of a la ptop

•

computer.

C.6 Quitting PC-Doctor

You can quit PC-Doctor in the following ways:

Exit (Alt-F4

•

Reboot

•

to flush write-caches

Park HD

•

) -

- performs a cold boot. PC-Doctor flushes all files and attempts

- prepares a computer fo r transport

C.7 Remote Operation

This selection only appears in the Utility menu i f your PC-Doctor supports remote control. This entry opens the Remote Operation menu if you are not yet online, or closes the remote connection if the system is already remotely controlled.

When PC-Doctor is operated remotely, it is possible to perform a remote reboot. Remote rebooting is a complicated procedure that reloads the operating system and makes changes to CMOS RAM and configuration files. For further information on remote operations, refer to online documentation or help.

C-6

Diagnostics

Printed in U.S.A.

Acer Extensa 450 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Maintenance Manual

Contents

Preface

Self-Test Error Messages

Connector Pinouts