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Maintenance Manual
ExtensaTM 57x Series TM Notebook Computers
9811323-0001
May 1996
Copyright (©) 1996 Texas Instruments Incorporated All Rights Reserved -- Printed in U.S.A. ExtensaTM 57x Series Notebook Computers TM Maintenance Manual TI Part No. 9811323-0001 Original Issue: May 1996 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 tools -- including TI products -- cannot replace sound judgment nor make the manager's business decisions. Consequently, TI cannot warrant that its products are suitable for any specific customer application. The manager must rely on judgment 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 and DockMate are trademarks of Texas Instruments. The icons in the Windows Notebook and Startup groups are copyrighted by Texas Instruments. Lotus is a trademark of Lotus Development Corporation. IBM and VGA are trademarks and PS/2 is a registered trademark of International Business Machines Corporation. Microsoft, Windows, and MS-DOS are registered trademarks of Microsoft Corporation. Intel and Pentium are registered trademarks of Intel Corporation. Cirrus and SimulSCAN are trademarks of Cirrus Logic, Inc. IRDA is a trademark of Infra Red Data Association.
Contents
Preface 1 General Description
1.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 . . . . Product Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.3 . . . . International Product Versions . . . . . . . . . . . . . . . . . 1-2 1.4 . . . . Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.4.1 . . . External Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.4.2 . . . Glidepad Pointing Device . . . . . . . . . . . . . . . . . . . 1-6 1.4.3 . . . Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.4.4 . . . Standard Power Features . . . . . . . . . . . . . . . . . . . 1-7 1.4.5 . . . Wireless Connection With Serial Infrared Port . . . 1-8 1.4.6 . . . Preloaded Software. . . . . . . . . . . . . . . . . . . . . . . . 1-8 1.4.7 . . . Notebook Expansion Capabilities . . . . . . . . . . . . . 1-8 1.5 . . . . Standard Test Features . . . . . . . . . . . . . . . . . . . . . . 1-9 1.6 . . . . Notebook Assemblies and Subassemblies . . . . . . . . . 1-9 1.6.1 . . . Cover-Display Assembly. . . . . . . . . . . . . . . . . . . . 1-10 1.6.2 . . . System Base Assembly . . . . . . . . . . . . . . . . . . . . . 1-11 1.7 . . . . Extensa 57x Series Notebook Specifications . . . . . . . 1-11 1.8 . . . . Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
2
Installation
2.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.2 . . . . Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.3 . . . . Installing Notebook Options . . . . . . . . . . . . . . . . . . . 2-1 2.3.1 . . . Installing Expansion Memory Modules . . . . . . . . 2-1 2.3.2 . . . Installing PCMCIA Options . . . . . . . . . . . . . . . . . 2-2 2.3.3 . . . Installing the Optional Numeric Keypad . . . . . . . 2-2 2.4 . . . . Installing the Battery Pack(s) . . . . . . . . . . . . . . . . . . 2-2 2.5 . . . . Installing External Devices . . . . . . . . . . . . . . . . . . . . 2-3
Contents iii
2.5.1 . . . Installing an External Keyboard/Mouse . . . . . . . 2-4 2.5.2 . . . Installing External Parallel Printer . . . . . . . . . . . . 2-6 2.5.3 . . . Installing External Serial Port Device . . . . . . . . . 2-7 2.5.4 . . . Installing External SVGA Monitor . . . . . . . . . . . . 2-8 2.5.5 . . . Installing SIR Devices. . . . . . . . . . . . . . . . . . . . . . 2-9 2.6 . . . . Installing the AC Power Adapter . . . . . . . . . . . . . . . 2-10
2.7 . . . . Initial System Checkout . . . . . . . . . . . . . . . . . . . . . . 2-10 2.8 . . . . Configuring the System . . . . . . . . . . . . . . . . . . . . . . . 2-11 2.9 . . . . Making Backups of System Software . . . . . . . . . . . . . 2-11 2.10 . . . Loading Application Software . . . . . . . . . . . . . . . . . . 2-11
3
Operating Instructions
3.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.2 . . . . Notebook Controls and Indicators . . . . . . . . . . . . . . . 3-1 3.2.1 . . . LCD Contrast Control . . . . . . . . . . . . . . . . . . . . . 3-2 3.2.2 . . . Button Switches. . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2.3 . . . Cover Release Latch . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2.4 . . . Glidepad Controls . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.3 . . . . Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3.1 . . . Floppy Drive Operating Procedures . . . . . . . . . . . 3-2 3.3.2 . . . Installing/Removing PCMCIA Options . . . . . . . . . 3-4 3.3.3 . . . Computer Hot Keys . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.3.4 . . . Responding to Low Battery Conditions . . . . . . . . . 3-4 3.3.5 . . . Minimizing Power Usage. . . . . . . . . . . . . . . . . . . . 3-4 3.3.6 . . . Recharging the Battery Packs. . . . . . . . . . . . . . . . 3-5 3.3.7 . . . Conditioning the Primary Battery . . . . . . . . . . . . . 3-5 3.3.8 . . . Restoring Missing System Files . . . . . . . . . . . . . . 3-5 3.3.9 . . . Rebuilding the System Software . . . . . . . . . . . . . . 3-5
4
Theory of Operation
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. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 4.2.3 . . . Video Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . 4-6
iv Contents
4.2.4 . . . Hard Disk Subsystem . . . . . . . . . . . . . . . . . . . . . 4-6 4.2.5 . . . Floppy Diskette Drive Subsystem . . . . . . . . . . . . . 4-7 4.2.6 . . . CD-ROM Subsystem . . . . . . . . . . . . . . . . . . . . . . 4-7 4.2.7 . . . PCMCIA Subsystem . . . . . . . . . . . . . . . . . . . . . . . 4-7 4.2.8 . . . Sound Subsystem (Model Dependent) . . . . . . . . . 4-8 4.2.9 . . . Power Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
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 Self Test . . . . . . . . . . . . . . . 5-5 5.3.4 . . . PCMCIA Modem Problems . . . . . . . . . . . . . . . . . . 5-5 5.3.5 . . . Fault Isolation Using Diagnostics . . . . . . . . . . . . 5-6
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 . . . . . . . . . . . . . . . . . . 6-1 6.2.3 . . . Handling the Computer Battery Pack . . . . . . . . . . 6-2 6.2.4 . . . Restoring System Software . . . . . . . . . . . . . . . . . . 6-2 6.3 . . . . Required Tools and Equipment . . . . . . . . . . . . . . . . 6-2 6.4 . . . . Notebook Field-Replaceable Parts and Assemblies . . . 6-3 6.4.1 . . . Cover-Display Assembly. . . . . . . . . . . . . . . . . . . . 6-3 6.4.2 . . . System Base Assembly . . . . . . . . . . . . . . . . . . . . . 6-5 6.5 . . . . FRU Removal and Replacement Procedures. . . . . . . . 6-8 6.5.1 . . . Removing/Replacing the Notebook Battery Pack . 6-8 6.5.2 . . . Removing/Replacing the Floppy Drive/CD-ROM . 6-8 6.5.3 . . . Removing/Replacing the Hard Drive . . . . . . . . . . 6-9 6.5.4 . . . Removing/Replacing DIMM Modules . . . . . . . . . . 6-9 6.5.5 . . . Removing/Replacing the Keyboard Assembly . . . 6-10 6.5.6 . . . Removing/Replacing the Display Assembly . . . . . 6-11
Contents v
6.5.7 . . . Removing and Replacing the LCD Status . . . . . . . Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11 6.5.8 . . . Removing/Replacing the Top Case Assembly . . . . 6-12 6.5.9 . . . Removing/Replacing the Glidepad Assembly . . . . 6-12 6.5.10 . . Removing/Replacing the IR/Sound Assembly . . . 6-12 6.5.11 . . Removing/Replacing the Power Supply Board . . . 6-13 6.5.12 . . Removing/Replacing the CMOS Battery . . . . . . . 6-13 6.5.13 . . Removing/Replacing the Main Board . . . . . . . . . . 6-13 6.5.14 . . Removing/Replacing HDD Connector Board . . . 6-14 6.5.15 . . Removing/Replacing Inverter Board . . . . . . . . . . 6-15
A B
Self Test Error Messages
A.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
PC-Doctor Diagnostics
B.1 . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 B.2 . . . . Starting PC-Doctor . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 B.3 . . . . Keyboard Navigation . . . . . . . . . . . . . . . . . . . . . . . . . B-2 B.4 . . . . Mouse Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 B.5 . . . . PC-Doctor Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 B.5.1 . . . Online Help (?) . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 B.5.2 . . . Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 B.5.3 . . . Interactive Tests Menu . . . . . . . . . . . . . . . . . . . . . B-4 B.5.4 . . . Hardware Info Menu . . . . . . . . . . . . . . . . . . . . . . B-4 B.5.5 . . . Utility Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5 B.6 . . . . Quitting PC-Doctor . . . . . . . . . . . . . . . . . . . . . . . . . . B-6 B.7 . . . . Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
vi Contents
Preface
Introduction
This manual provides installation, operation and servicing data for the ExtensaTM 57x Series Notebook Computers.
Intended Audience
This manual is primarily intended for use by qualified service technicians but contains information useful to non-technical users.
Contents
This manual contains six sections and reference appendices including:
· · · · · · · ·
Section 1: General Description -- Introduces the main features of the notebook; provides a list of physical and electrical specifications. Section 2: Installation -- Describes how to unpack, install options and cable up the notebook computer in a desktop environment. Section 3: Operating Instructions -- Describes the notebook operating controls and indicators and basic operating procedures. Section 4: Theory of Operation -- Describes the theory of operation for Extensa 57x Series Notebook Computers. Section 5: Troubleshooting Procedures -- Provides guidelines for performing fault isolation on the Extensa 57x Series Notebook Computers. Section 6: Field Service -- Provides preventive and corrective maintenance procedures for the notebook computer. Appendix A: Self Test Error Messages Appendix B: PC-Doctor Diagnostics
Preface vii
Other Manuals About the System
The following documents provide additional information related to the Extensa 57x Series Notebooks:
· · ·
ExtensaTM 57x Series Notebook Computer User's Reference Manual, TM contains reference information regarding the Extensa 57x series software. Windows 95® Help (online) 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 Toll-free: 1-800-TI TEXAS
viii Preface
1 General Description
1.1
Introduction
This manual contains field and factory level servicing information for the Texas Instruments ExtensaTM 57x Series of Notebook Computers (Figure 1-1). This section provides a general overview and specifications for the Extensa 57x Series Notebook Computers.
Figure 1-1 Extensa 57xSeries Notebook Computer
1.2
Product Models
Table 1-1 summarizes the features shipped with the notebook for the product models initially available in the Extensa 57x family of notebook computers. The product models offer a choice of either 11.3 inch, dual scan color or 10.4 inch active matrix color LCD and a choice of either the basic Windows® 95 operating system or Windows 95 plus application software. Other options include choice of 810 million byte or 1200 million byte hard drive.
General Description 1-1
Table 1-1 Extensa 57x Series Notebook Computers
Features
11.3" Dual Scan, SVGA Color LCD 10.4" Active Matrix (TFT), SVGA Color LCD 1.44 MB Floppy Drive Module CD-ROM Drive Module Windows 95 Application Software 16-Bit Stereo Sound HDD 810 Million Bytes HDD 1200 Million Bytes
Model 570CD
X
Model 575CD
X
Model Model 570CDT 575CDT
X X X X X X X X X X X X X X X X X
X X X X X X
X
1.3
International Product Versions
The Extensa 57x Series Notebooks are available in domestic and international configurations as listed in Table 1-2. Table 1-2 Notebook Domestic/International Configurations
Configuration
Domestic UK German French Spanish Swiss/German Italian Portuguese Western European
P/N Suffix
-0001 -0002 -0003 -0004 -0005 -0006 -0007 -0008 -0009
Configuration
Swedish Swiss/French Danish Norwegian Finish Belgium Austrian Latin American
P/N Suffix
-0010 -0011 -0012 -0013 -0014 -0015 -0016 -0018
1-2
General Description
1.4
Product Overview
All members of the Extensa 57x Series are high performance notebooks powered by the PentiumTM Processor and Windows 95 Operating System software. As a standard feature, all members of the Extensa 57x family also contain the following features:
· · · · · · · · · · · · · · ·
100 MHz Pentium Processor with 16K Internal Cache Memory. 8 MB of RAM memory standard, user-expandable to 40 MB (easy access via door at bottom of notebook). 256 KB L2 Cache. 128 bytes of battery-backed up CMOS RAM. High performance PCI (Peripheral Component Interconnect) Bus Architecture; PCI Bus Expansion port for use with optional Expansion System. Removable Hard Disk Drive (810 or 1200 million byte capacity). Removable 1.44 MB Floppy Drive (interchangeable with optional CD-ROM Drive or Lithium-Ion secondary battery pack). Two PCMCIA option slots (one slot accepts one Type I/II option and the second slot accepts either a Type I, II, or III device). Ergonomic keyboard with palm rest (2.7 mm travel); built-in glidepad pointing device and palm rest below the keyboard. Built-in support for a CD-ROM drive (4X or 6X speed). Built-in 16-bit stereo sound system (including stereo speakers and internal microphone) Removable 3.5 inch, 1.44 MB Floppy Drive (interchangeable with second Lithium-Ion battery or CD-ROM option). Choice of LCD displays: 10.4 inch Active Matrix (TFT), SVGA Color LCD or 11.3 inch, dual scan, SVGA color LCD; 1 MB video RAM. Support for internal SVGA LCD display only, external SVGA Monitor only, or simultaneous SVGA LCD and external SVGA monitor. LCD Status Panel displays icons to indicate when AC adapter is plugged in, power savings mode is on, battery in use (blinks if battery is low), floppy drive in use, hard disk activity indicator, PCMCIA cards installed, CD-ROM drive activity, and keyboard modes (e.g.. Num Lock, Caps Lock, Scroll Lock, Pad Lock etc.).
General Description 1-3
· · · · ·
AC Adapter with autosensing (100 VAC to 240 VAC, 50 to 60 Hz); 36 Watts of DC output power. 8.4 Volt, 4200 mAH capacity, Nickel-Metal Hydride (NiMH) primary battery pack. Provisions for secondary 10.8 Volt Lithium-Ion Battery Pack in Floppy Drive cavity (if Floppy Drive or CD ROM Player not installed). Power management features for longer portable operation away from AC power. Full range of external ports including: EPP/ECP Parallel Port, Serial Port, External VGA Port, PS/2TM Port, and Serial Infrared Port. All Models of the 57x family include Audio In/Out and Microphone In jacks.
TFT or Dual Scan Color Display Assembly Status LCD Display Removable Hard Disk Drive Power ON/OFF Button Full function Keyboard
Power Input from AC Adapter
Cover Release Latch PCMCIA Type I/II Option Mouse Select Glidepad Switches Mouse Device
Floppy Drive or CD-ROM or Lithium-Ion Battery Pack
PCMCIA Type III or two PCMCIA Type I/II Options Rear Connector Doors
Audio Connectors
Figure 1-2 Extensa 57X Series Features
1-4
General Description
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 Audio In/Out and External Microphone Input Expansion Bus Port for attaching an external expansion system
PS/2 Port Serial Infrared Port Audio Line In/Out/Mic In Parallel Port
External VGA Port Serial Port
Connector for External Expansion System
Figure 1-3 Notebook External Ports
General Description 1-5
1.4.2
Glidepad Pointing Device
All members of the Extensa 57x family feature a built-in glidepad pointing device located near the center of the keyboard's palmrest. With light finger pressure, the cursor can quickly be positioned to the desired point; a quick double tap on the glidepad and you have selected an object. Two select buttons (switches) are located along the front edge of the notebook for use in the traditional select/drag features of a mouse device. .
Glidepad
Select Buttons
Figure 1-4 Extensa 57X Series Glidepad
1.4.3
Keyboard
The Extensa 57x Series Keyboard is a full function 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 functions to keys, the keyboard can emulate IBM® 101/102 keyboards. The notebook keyboard is available in two basic versions:
· ·
U.S. English - This version (also known as the domestic version) is generally used in the United States and Canada. U.K. English/Custom International Version - This version is adapted (using appropriate keycap changes) for the international countries listed in Table 1-2.
1-6
General Description
n
Note: The Extensa Series Notebook Computer User's Reference Manual contains descriptions of keyboard special function keys.
Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
8
F1 0
9
F1 1
F12
NumLk Pad
Prt Sc Sys Rq
Scroll Lock
Backspace
Pause Break
1
Tab
@ 2
Q
%
3
4 E R
5 T
^ 6
Y
& 7
7
*
8 U
4
9
PgUp
0
6
Home
Home
W
I
1
5
O
P
{
[
}
]
| \
PgUp
Caps Lock Shift
A
Z
S
X
D C
~ `
F V
G B
H N
J
K
M
Ins
2
L
3
Enter
PgDn
En d
Pg On . Del Alt /
Shift
End
Fn
Ctrl
Alt
In s
Del
Figure 1-5 Extensa Keyboard
1.4.3.1
Controls and Indicators
The Extensa 57x contains a Power Button and a Status LCD just above the keyboard. All notebook functions (except the power On/Off function) are controlled by keyboard keys in conjunction with the Fn key.
1.4.4
Standard Power Features
Notebook power for the Extensa 57x Series Notebook Computers is provided by an AC Adapter and a rechargeable 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. All members of the Extensa 57x family feature a power management subsystem (hardware and software) that provides for longer portable operation and protection of files during low battery conditions.
n
Note: The Nickel Metal Hydride (NiMH) battery requires periodic battery conditioning in order to charge to full capacity. To accomplish this, remove the AC Adapter and the secondary battery pack (if installed). Allow the notebook to deep discharge. Then, recharge to full capacity. The secondary battery pack is a Lithium-Ion type that does not require conditioning.
General Description 1-7
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 IRDATM compliant devices made by other manufacturers.
n
Note: Prior to communicating with an external device equipped with a serial infrared interface, the appropriate third-party drivers must be installed on your notebook.
1.4.6
Preloaded Software
All members of the Extensa 57x Notebook family are preloaded with the Windows 95 Operating System. In addition, Extensa 575CD and 575 CDT models come standard with the following application packages installed:
· · · ·
MicrosoftTM Works Quicken SE LotusTM 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 memory (to a maximum of 40 MB) By removing the floppy drive, you can add either a second battery pack or CD-ROM Drive. Cable Connect PS/2 Numeric Keypad option, TI Part No. 2581381-0001, or other PS/2 type device (e.g. keyboard or mouse) can be attached to the PS/2 Port. A parallel device can be attached to the notebook's external 25-pin parallel port (EPP/ECP compatible). With one of the DockMate desktop expansion systems installed, additional expansion ports are available
1-8
General Description
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 program automatically verifies the operational state of the primary circuits. Also, the notebook contains a powerful suite of diagnostic tests called PC-Doctor, (described in detail in Appendix B) that can perform additional levels of diagnostic testing.
1.6
Notebook Assemblies and Subassemblies
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 1-6 and briefly described in the following paragraphs.
General Description 1-9
Display Assembly
Keyboard Assembly
Status LCD Assembly Glidepad Assembly
Power Supply Board IR/Sound Board
Display Assembly
Floppy Drive/CD-ROM Bay Main Board Display Cable Interface Board Inverter Board
Figure 1-6 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 several field-replaceable components including:
· · · · ·
1-10
LCD Assembly Inverter Board Bezel Hinge Covers Internal cables
General Description
1.6.2
System Base Assembly
As shown in Figure 1-6, 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 Up to two Dual Inline Memory Modules LCD Status Assembly Floppy Drive Module IR/Sound Board Assembly Power Supply Board Assembly Battery Pack Assembly Top Case Assembly Glidepad Assembly Keyboard Assembly CMOS Battery Assembly HDD Connector Board Assembly
1.7
Extensa 57x Series Notebook Specifications
Specifications for the Extensa 57x Series Notebooks are provided in Table 1-3.
General Description 1-11
Table 1-3 Extensa 57x Notebook Features
Specifications
Processor Memory: Standard: Maximum: Cache: Display LCD Type:
Models 570CD/575CD
Pentium 100 MHz
Models 570CDT/575CDT
Pentium 100 MHz
8 MB 40 MB 256 KB L2 Cache
8 MB 40 MB 256 KB L2 Cache
11.3 inch, SVGA, Dual Scan Color Yes 1 MB PCI Bus with Graphics Accelerator
10.4 inch, SVGA, Dual Scan Color/ Active Matrix Color Yes 1 MB PCI Bus with Graphics Accelerator
Simultaneous LCD/Ext. SVGA Video RAM Size: Video Bus Keyboard/Pointing Device Ergonomic Keyboard Built-In Glidepad Storage Floppy Drive Module: Hard Drive: CD-ROM Drive Interfaces Serial (RS-232) Port Parallel Port (EPP/ECP) External VGA Port External PS/2 Port Serial Infrared Port Expansion Bus
Yes Yes
Yes Yes
3.5 inch, 1.44 MB 810 Million Bytes 4X or 6X Speed
3.5 inch, 1.44 MB 1200 Million Bytes 4X or 6X Speed
Yes Yes Yes Yes Yes PCI, supports Port Replicator option
Yes Yes Yes Yes Yes PCI, supports Port Replicator option
1-12
General Description
Specifications
Battery Pack
Models 570CD/575CD
Nickel-Metal Hydride, optional Lithium-Ion secondary battery pack option 16-bit Stereo Sound, Audio in/out and Microphone In jacks, built in stereo speakers and microphone Type I/II, or III (Optional) Yes Yes (Model 570CD only)
Models 570CDT/575CDT
Nickel-Metal Hydride, optional Lithium-Ion secondary battery pack option 16-bit Stereo Sound, Audio in/out and Microphone In jacks, built in stereo speakers and microphone Type I/II, or III (Optional) Yes Yes (Model 570CDT only)
Sound Features
PCMCIA Support Windows 95 Windows for Workgroups Physical Characteristics Weight: Dimensions:
Approx. 6.2 Pounds* 11.7" (L) X 1.7" (H) X 8.2" (W)
Approx. 6.2 Pounds* 11.7" (L) X 1.7" (H) X 8.2" (W)
*NOTE: Only one module (Floppy Drive, CD-ROM or second Battery) may be installed in the notebook at any given time. NOTE: Weight specifications do not include Floppy Drive, CD-ROM drive, AC Adapter or second battery option.
1.8
· · · · · ·
Agency Approvals
All Extensa 57x Series 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) CE Mark General Description 1-13
2 Installation
2.1
Introduction
This section contains unpacking and preparation for use instructions for the Extensa 57x Series Notebook Computers.
2.2
1. 2. 3. 4.
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.
Unpack the computer using the following instructions:
n
Note: Save the shipping containers and packaging for later reuse.
2.3
Installing Notebook Options
If you have no options to install at this time, skip to Paragraph 2.4. Otherwise, continue with Paragraph 2.3.1.
2.3.1
Installing Expansion Memory Modules
n c
Note: If not installing RAM Expansion option at this time, skip to the next paragraph.
Caution: The Dual Inline Memory Module contains components that are sensitive to static electricity. When handling the module and the internal parts of the computer, protect against static electricity by using wrist or ankle grounding straps and grounded working mats. When moving or storing items, use the anti-static bags supplied with the items.
Installation 2-1
1. 2. 3. 4. 5.
Ensure that the notebook is powered off and that the AC Adapter and internal battery pack(s) is (are) removed from the notebook. Remove the Expansion RAM Module (Dual Inline Memory Module or DIMM) from its shipping container. Turn the Notebook over and locate the RAM Access Door (held in place by two screws). Remove the two Phillips-head screws that hold the RAM access door and remove the door. Insert the edge of the first DIMM Board into the rear of either available connector . Use a rocking motion and insert the board at an angle to the surface of the Main Board. Fully insert the module. Push downwards on each side of the DIMM module until it snaps in place. Repeat the procedure for the second module. Replace the RAM Access Door and all components removed in Step 1.
6.
This completes the expansion memory module installation procedure.
2.3.2
Installing PCMCIA Options
The Notebook has provisions for two Type I or II options or one Type III PCMCIA option card. 1. 2. 3. 4. Review the installation instructions supplied with the PCMCIA option card(s). Open the PCMCIA compartment cover on the right side of the notebook. To insert a PCMCIA card, align the card with the socket and slide the card into the socket until it locks into place. 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 selection and direct the card to stop before removing card.
2.3.3
Installing the Optional Numeric Keypad
An optional numeric keyboard can be attached to the notebook via the notebook's PS/2 connector (refer to Figure 2-2).
2.4
Installing the Battery Pack(s)
The Extensa Notebook is shipped with a single battery pack that is inserted from the front left side of the computer. A second battery pack (option) can 2-2 Installation
be installed in the removable Floppy/CD-ROM bay. Two switches that used to remove devices from the option bay are physically located on the bottom of the Notebook. The left-most switch controls removal of the Primary Battery Pack and the right-most switch controls removal of the device installed in the Floppy/CD-ROM/Secondary Battery bay. To remove or replace the battery pack, follow the steps below. 1. 2. Save any data, then Power off the notebook. Disconnect the AC adapter if installed. Turn the notebook over and press the battery release switch while pressing outwards on the primary battery pack. Remove the battery from the Notebook. Insert a new or recharged battery pack into the battery compartment bay. Make sure that the contacts are facing up and to the rear of the compartment.
3.
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Caution: There is danger of explosion if the battery is incorrectly replaced. Replace the battery only with the same or an equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. 4. If installing a secondary battery pack, insert the battery pack into the front right side of the notebook until the battery pack clicks in place.
2.5
Installing External Devices
Most external devices connect to the Notebook via the connectors on the rear of the notebook as shown in Figure 2-1. Additional connectivity can be obtained by installing an optional Port Expander to the Notebook's PCI Expansion Bus.
Installation 2-3
PS/2 Port Serial Infrared Port Audio Line In/Out/Mic In Parallel Port
External VGA Port Serial Port
Connector for External Expansion System
Figure 2-1
I/O Connector Locations
2.5.1
Installing an External Keyboard/Mouse
As shown in Figure 2-2, the notebook has one external PS/2 port on the rear of the Notebook for installing a PS/2 compatible device (keyboard, mouse, etc.). Additional PS/2 devices may be installed using the Port Expander option. Pinouts for the PS/2 port on the rear of the Notebook are also provided in Figure 2-2.
2-4 Installation
Figure 2-2
PS/2 Port Assignments/Pinouts
To install an external keyboard or external PS/2 mouse on the notebook, use the following procedure: 1. 2. 3. 4. Ensure that the notebook is powered off. Locate the external PS/2 port at the rear of the notebook (refer to Figure 2-2). Attach the PS/2 cable from your mouse and/or keyboard cable to the PS/2 port. Power on any other peripheral devices you may have connected to the notebook, and then power up the notebook.
Installation 2-5
2.5.2
Installing External Parallel Printer
The Notebook is equipped with a bidirectional, ECC/EPP compatible, 25-pin parallel printer port. The connector pinouts and connector location are shown in Figure 2-3.
PARALLEL PORT PINOUTS PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 SIGNAL STROBE DATA BIT 0 DATA BIT 1 DATA BIT 2 DATA BIT 3 DATA BIT 4 DATA BIT 5 DATA BIT 6 DATA BIT 7 ACKNOWLEDGE * BUSY PAPER OUT SELECT AUTO LINEFEED * ERROR * INITIALIZE PRINTER * SELECT IN * GROUND GROUND GROUND GROUND NOTE: GROUND * ACTIVE LOW GROUND GROUND GROUND
13 25
12 24
11 23
10 22
9 21
8 20
7 19
6 18
5 17
4 16
3 15
2 14
1
Figure 2-3
Parallel Port Location/Pinouts
2-6 Installation
2.5.3
Installing External Serial Port Device
The notebook contains an RS-232 serial port with a male DB-9 connector as shown in Figure 2-4. 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.
c
Caution: Never connect a parallel device to a serial port or a serial device to a parallel port or video port; this may cause damage to the Notebook and/or peripheral device. If you are uncertain of what type connector the external device has, refer to the technical manual for the external device.
SERIAL PORT PINOUTS PIN 1 2 3 4 5 6 7 8 9 SIGNAL DCD (CARRIER DETECT) RXD (RECEIVE DATA) TXD TRANSMIT DATA) DTR (DATA TERMINAL READY) GND (GROUND) DSR (DATA SET READY) RTS (REQUEST TO SEND) CTS (CLEAR TO SEND) RI (RING INDICATOR)
1 6
2 7
3 8
4 9
5
Figure 2-4
Serial Port Location/Pinouts
Installation 2-7
2.5.4
Installing External SVGA Monitor
The notebook is capable of driving both its internal LCD display and an external SVGA monitor (LCD only, simultaneous, or SVGA only). The external monitor connector pinouts and connector locations are shown in Figure 2-5. To install an external monitor with the notebook, use the following steps: 1. 2. 3. Ensure that both the notebook and the external monitor are turned off. Locate the 15-pin female SVGA port on the Port Adapter. Attach the appropriate end of the monitor cable to the SVGA port on your notebook. If the monitor cable connectors have retaining screws, tighten them down. If necessary, connect the monitor power cable to the monitor, and plug the monitor power cable into an electrical outlet. Power on the monitor, as well as any other peripheral devices connected to the notebook; then power up the notebook.
4. 5.
5 10 15
4 9
3 8
2 7
1 6 11
14
13
12
EXTERNAL VGA CONNECTOR PINOUTS PIN 1 2 3 4 5 6 7 8 9 10 11, 12 13 14 15 SIGNAL NAME RED VIDEO GREEN VIDEO BLUE VIDEO NOT USED GROUND RED RETURN GREEN RETURN BLUE RETURN NOT USED GROUND NOT USED HORIZONTAL SYNC VERTICAL SYNC NOT USED DIRECTION OUTPUT OUTPUT OUTPUT
INPUT INPUT INPUT
OUTPUT OUTPUT
Figure 2-5
Connecting an External SVGA Monitor
2-8 Installation
2.5.5
Installing SIR Devices
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 appropriate IR drivers before attempting connection. As shown in Figure 2-6, the Notebook SIR port is located just above the serial port connector on the rear of the notebook. Align this port with the SIR port on a printer, notebook or other device equipped with an SIR port.
Serial Infrared Port
Figure 2-6 Communicating with SIR-Equipped Devices
Installation 2-9
2.6
Installing the AC Power Adapter
Use the following procedures to connect the AC Adapter to the system:
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Caution: Use only the AC Adapter supplied with the computer; other adapters can damage the unit.
1.
Remove the AC adapter from the packaging. Connect the round coaxial connector on the AC Adapter to the power receptacle on the left side (rear corner) of the notebook as shown in Figure 2-7. Connect the female side of the AC Power cord to the AC Adapter and connect the male end to a grounded AC outlet.
2.
AC Power (120VAC to 230 VAC, 50 to 60 Hz)
A C A dapt er
Figure 2-7
AC Adapter Installation
2.7
Initial System Checkout
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 position which initiates the notebook self test. During self test execution, the computer checks the operation of all critical hardware including memory and CPU (and displays copyright and version number data during test execution). 2-10 Installation
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 repeat self test. If the error message persists, see Section 5 for troubleshooting information (also refer to Appendix A for self test error message descriptions).
2.8
Configuring the System
The first time you power up the notebook, it automatically runs the Setup Program which prompts you for country name and printer type. You exit Windows and the notebook begins unzipping files and preparing the software for use. After initial installation, and the timeout occurs, the demo may begin. To stop the demo, move the cursor to the center of the screen and click the left mouse button. A number of demo options are then available.
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 Loading Application Software
For assistance in loading Application Software, refer to Chapter 5 in the Extensa Series Notebook Computer User's Reference Manual.
Installation 2-11
3 Operating Instructions
3.1
Introduction
This section describes the Extensa 57x Series Notebook operating controls and indicators.
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Note: For additional operating instructions, refer to the Extensa 57x Series Notebook Computer Users Guide.
3.2
· · ·
Notebook Controls and Indicators
The Extensa Series Notebooks are equipped with the following controls and indicators: Alternate action Power Button in the upper left corner above the keyboard Status LCD centered above the keyboard - ICONs are used to convey status information (refer to Figure 3-1) Embedded special function keys in the keyboard (including Contrast and Brightness Control) are activated by the Fn key
Status LCD Disp lay Power Button
Glidepad (Mouse)
Mouse Select Buttons
Figure 3-1 Extensa Series Controls and Indicators
Operating Instructions 3-1
3.2.1
LCD Contrast Control
The TFT version of the notebook contains no operating controls or indicators. Use the function keys to adjust the contrast and brightness. TFT versions are unaffected by contrast "key" adjustments.
3.2.2
Button Switches
The notebook contains one button switch above the keyboard: the Power On/Off Switch. This button is an alternate action type switch that controls power to the unit. Pressing the Power button causes power to be applied to the notebook, power up self test to be run and Windows 95 to be loaded. When the Power button is pressed again, the Notebook powers down and all data in RAM memory is lost.
3.2.3
Cover Release Latch
The Notebook contains a Cover Release latch near the center of the top cover. To open the notebook, lift up on the release mechanism along the front edge of the notebook.
3.2.4
Glidepad Controls
The Extensa 57x Series Notebook Computers are equipped with a built-in mouse device called the glidepad physically located at the base of the keyboard (refer to Figure 3-1). The cursor is positioned by touching and dragging your finger in the direction you want the cursor to go. The select functions are performed either by tapping the glidepad or by pressing the two buttons (switches) at the bottom 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 proper place and you want to select, use the left button to click or double-click just as you would with a mouse.
3.3
Operating Procedures
Some of the operating features useful for notebook maintenance are provided in the following paragraphs. For additional operating instructions, refer to the Extensa 57X Series Notebook Computer User's Manual.
3.3.1
Floppy Drive Operating Procedures
To avoid damaging the floppy drive, and to protect data, take the following precautions:
· ·
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.
3-2 Operating Instructions
· · · · · · ·
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 diskette, press the eject button until the floppy pops 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 computer 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.
Operating Instructions 3-3
3.3.2
· · ·
Installing/Removing PCMCIA Options
PCMCIA cards are inserted and ejected in much the same way as diskettes: Up to two Type I or Type II PCMCIA options may be installed in the compartment on the right side of the notebook. One Type III Option may be installed in the lower slot. 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
·
Computer Hot Keys
Refer to the User's Guide shipped with the notebook for a description of the recognized hot keys.
3.3.4
Responding to Low Battery Conditions
The computer generally will notify you when you are reaching a low battery condition by performing the following actions:
· · · ·
One beep every 10 seconds (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 three minutes of a detected battery low condition, the notebook enters Standby mode. 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
Minimizing Power Usage
The following actions can minimize power usage and protect your work during the critical minutes before you shut the system down or replace one of the battery packs with a fully charged pack:
· · ·
Press Ctrl-Standby to shut off the alarm (if it's enabled) Save RAM Disk (if using RAM Disk feature) Power down the system if you do not need the computer
3-4 Operating Instructions
3.3.6
Recharging the Battery Packs
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. 2. 3. 4. Install the battery pack(s) in your computer (if not already installed). Connect the AC Adapter as described in Section 2. To fully charge the battery pack, leave it charging in the Notebook for at least another 90 minutes. Periodically recondition the primary battery (Nickel Metal Hydride) as described in Paragraph 3.3.7.
3.3.7
Conditioning the Primary Battery
The primary battery pack is a Nickel-Metal Hydride type that requires periodic deep discharge and recharge in order to accept a full charge (approximately every 5 or 6 charge/recharge cycles). To condition the main battery, use the following procedure: 1. 2. Remove the secondary battery (if installed in the Floppy Drive bay) and AC Adapter (if installed). Power up the computer and leave it on until the primary battery is completely discharged; then reconnect the AC adapter and fully charge the battery. Reinstall the secondary battery in the Floppy Bay (if using a secondary battery pack).
3.3.8
Restoring Missing System Files
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 accidentally erased, as indicated by error message, insert the Windows95 Startup diskette and reboot the system. This will allow you to boot up and troubleshoot your system.
3.3.9
Rebuilding the System Software
In the event of a hard drive replacement or system board replacement which resulted in loss of system software, you may need to rebuild 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.
Operating Instructions 3-5
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Note: For additional operating procedures, refer to to the Extensa 500 Series Notebook Computer User's Manual, Texas Instruments Part No. 9803942-0001.
3-6 Operating Instructions
4 Theory of Operation
4.1 4.2
· · · · · · · · · ·
Introduction Notebook Functional Description
This section describes the notebook theory of operation.
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 CD-ROM Subsystem PCMCIA Subsystem Sound Subsystem Serial Infrared Subsystem Power Subsystem
A functional block diagram of the Extensa 57x Series Notebook is shown in Figure 4-1.
4.2.1
Processor/Memory Subsystems
The Processor function, housed on the Main Board, is implemented with the IntelTM Pentium Processor (P54C/LM). 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 Pentium Chipset (Opti Viper 82C556/82C557). The memory subsystem, implemented on the Memory Board and optional Dual Inline Memory Modules, provides 8 MB (expandable to 40 MB) of fast Theory of Operation 4-1
DRAM memory, 128 bytes of CMOS RAM (battery backed up) and 256 KB of Flash ROM for system and video BIOS storage. The basic 8 MB memory system can be expanded to a maximum of 40 MB by the addition of two DIMM memory modules (refer to Section 6 for installation details). Tables 4-1 through 4-3 contain the Notebook I/O address map, DMA channel assignments and IRQ interrupt level assignments respectively.
PCMCIA Option Slot(s)
PCMCIA Adapter UM8365A PCI Bus
Cache MEMORY CPU Data DBC 82C556 Pentium Processor (P54C/LM)
MAIN BOARD
SYSTEM & SVGA BIOS
Drivers/ Receivers
Expansion Bus Connector
RS232 SERIAL PORT
Memory Data PCI Bus IPC DRAM (2 Bank)
Super I/O Controller
INTERNAL 1.44 MB FLOPPY DISK DRIVE
CPU Address
System Controller 82C557
SIMM Memory Expansion Modules
PCI Bus IR/Audio IR/Sound Board Boar d 1 MB Video RAM
PARALLEL PRINTER PORT
SIR Interface
HDD
RTC 82C602A
Audio IN/OUT Mic In
Input From AC Adapter
CD-ROM
Video Controller
PMU/Keyboard Controller
Battery Packs
Internal Gl i depad
EXTERNAL SVGA MONITOR
INTERNAL KEYBOARD
INTERNAL LCD DISPLAY
640 X 480 SVGA LCD
Figure 4-1
Notebook Functional Block Diagram
4-2
Theory of Operation
Table 4-1
Extensa Series I/O Address Map
Address Range
000-00F 020-021 022-023 040-043 060-06E 070-071 080-08F 0A0-0A1 0C0-0DF 1F0-1F7 178, 17A 1F0-1F7 3F6, 3F7 278-27F 35F, 36F 378, 37A 3BC-3BE 3C0-3C5 3C6-3C9 3C0-3CF 3D0-3DF 3E0-3E1 3F0-3F7 3F8-3FF Video DAC Parallel Port 3 Special I/O Ports Parallel Port 2 Parallel Port 1 DMA Controller 1
Device
Interrupt Controller 1 M1429 Registers Timer 1 Keyboard Controller 8742 Chip Select Real Time Clock and NMI Mask DMA Page Register Interrupt Controller 2 DMA Controller 2 Hard Disk Select 6377 Registers Hard Disk Select
Enhanced Graphics Display Color Graphics Adapter PCMCIA Controller Floppy Disk Controller Serial Port 1
Theory of Operation 4-3
Table 4-2 DMA Channels
Controller
1 1 1 1 2 2 2 2 0 1 2 3 4 5 6 7
Channel
Address
0087 0083 0081 0082 Cascade 008B 0089 008A
Function
Spare Spare Diskette Spare Cascade Spare Spare Spare
Table 4-3 IRQ Interrupt Levels
Priority
1 2 3 4
Interrupt Number
SMI NMI IRQ0 IRQ1 IRQ 2
Interrupt Source
Power management unit Parity Error Detected, I/O Channel Error Interval Timer, Counter 0 Output Keyboard Interrupt from controller 2 (cascade) Real Time Clock Cascaded to INT 0AH (IRQ 2) Reserved Reserved PS/2 Mouse INT from Coprocessor Hard Disk Controller Reserved Serial Comm Port 2 Serial Comm Port 1 Reserved Diskette Controller
5 6 7 8 9 10 11 12 13 14 15 16 4-4
IRQ8 IRQ 9 IRQ10 IRQ 11 IRQ 12 IRQ13 IRQ14 IRQ15 IRQ3 IRQ4 IRQ5 IRQ6
Theory of Operation
Priority
17
Interrupt Number
IRQ7
Interrupt Source
Parallel Port
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Note: A PCMCIA card can use IRQ 3, 4, 5, 7, 9 and 11 as long as it does not conflict with the interrupt address of any other device.
4.2.2
I/O Subsystem
The I/O subsystem, implemented with an SMC37C655IR Super I/O Controller Chip, provides for such functions as internal 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 Two UARTs · · · Software compatible with the PC16550A and PC16450 MIDI compatible Infrared support on UART2 (IRDA-compliant)
·
Bidirectional Parallel Port · · · · · · Enhanced Parallel Port (EPP) compatible Extended Capabilities Port (ECP) compatible, including level 2 support Bidirectional under either software or hardware control Compatbile with ISA, EISA, and Micro Channel architectures Ability to multiplex FDC signals on parallel port pins for external FDD Includes protection circuit against damage caused when printer is powered up, or operated at higher voltages
· ·
Integral address decoder- provides selection of all primary and secondary ISA addresses including COM1-4 and LPT1-3. Enhanced Power Management Function · Enhanced programmable power-down and wake-up modes Theory of Operation 4-5
· ·
Auto power-down and wake-up modes Typical current consumption during power-down is less than 10A
4.2.3
Video Subsystem
The video subsystem, implemented on the Main Board and on the LCD Display Unit, displays text, graphics and drives an external SVGA port. The video subsystem is implemented with a CirrusTM Logic CL-GD 7543 high performance VGA controller and supporting logic and video RAM (1 MB). The major features of the VGA controller include:
· ·
Highly integrated design (flat panel / CRT VGA controller, RAMDAC, clock synthesizer) Multiple Bus Architecture Integrated Interface · · Local Bus (32-bit CPU Direct and VL) EISA/ISA (PC/ATTM) 16-bit Bus
· · · · ·
Integrated programmable linear address feature accelerates GUI performance Supports panel resolutions up to 1280 X 1024 resolution including 800 X 600 and 1024 X 768 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 SVGA
4.2.3.1
External SVGA Drive Capability
The Extensa 57Xcontains an external SVGA port (15-pin, female, D-type connector) which can be used to drive an external CRT (standard SVGA modes with resolutions of 800 X 600 X 256, or 640 X 480 X 256).
4.2.4
Hard Disk Subsystem
The Hard Disk Subsystem, controlled by the IDE interface compatible 82C558N IPC chip, provides disk storage for all system software and user files. Initially, the 57X Series Notebooks are equipped with a removable 810 or 1200 Million Byte hard drive. During the manufacturing process, Texas Instruments formats the hard disk and then loads all supplied software including Windows 95.
4-6
Theory of Operation
c c
Caution: Formatting the disk drive erases any data that may be stored on the disk. Therefore do not attempt a format of the hard disk unless the computer self test and diagnostics confirm that the disk has not been formatted. A Hard Drive activity ICON is located on the Status LED beneath the Display Assembly. This ICON is visible during hard driver read/write accesses.
Caution: The notebook should not be moved when the HDD ICON is lit to prevent accidental damage to the hard drive.
4.2.5
Floppy Diskette Drive Subsystem
The Floppy Diskette Drive Subsystem consists of a Floppy Controller (part of the Super I/O Chip, SMC37C655IR) and the removable Floppy Diskette Drive. The Floppy Diskette Drive can read/write standard 3.5-inch minidiskettes. The floppy drive installs in the Media Bay and can be removed to install a CD-ROM drive or a second battery pack (Lithium Ion).
4.2.6
CD-ROM Subsystem
Many of the Extensa 57x models are equipped with a removable 5.25 inch, CD-ROM drive (4X or 6X speeds). The drive uses the standard ATAPI interface. The CD-ROM subsystem is controlled by the IPC (which also controls the hard drive subsystem).
4.2.7
PCMCIA Subsystem
The notebook is equipped with an on-board PCMCIA host adapter (UM8366F) PCMCIA Controller) and sockets to support Type I, II, or III options. The PCMCIA Controller has the following features:
· · · · · · · ·
Single-chip PCMCIA host adapters Direct connection to ISA (PC AT) Bus Direct connection to PCMCIA 2.0 Bus PCMCIA 2.0- and JEIDA 4.1-compliant 82365SL-compatible register set, ExCA-compatible Automatic Low-power Dynamic Mode for lowest power consumption Programmable Suspend Mode Five programmable memory windows per socket Theory of Operation 4-7
· · · · · · · · ·
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
4.2.8
Sound Subsystem (Model Dependent)
Some models of the Extensa 57x Series notebooks are equipped with a 16-bit stereo sound system including:
· · · · ·
Built-in microphone and stereo speakers Stereo line input (5-pin jack, DIP) Stereo Line Output (5-pin jack, DIP) External microphone input (5-pin jack, DIP) Audio chipset
The sound subsystem is physically implemented on the IR/Sound Board.
4.2.9
· · · · ·
Power Subsystem
The Power Subsystem consists of the following major parts: Power Management (hardware and software components) AC Adapter Power Supply Board Nickel Metal Hydride (NiMH) Battery Pack Optional Secondary Battery Pack (Lithium Ion) if not using the Media Bay for a floppy drive or CD-ROM Drive
4.2.9.1
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. 4-8 Theory of Operation
The power management modes and warnings include the following:
· · · · ·
LCD standby mode Hard disk/CD-ROM standby mode System standby/suspend mode Battery-low warning Standby/suspend upon battery low
4.2.9.2
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 and resets to the normal power mode after the fault condition is removed.
4.2.9.3
Primary Battery Pack
The Extensa 57x Series Notebooks use a Nickel Metal Hydride battery 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
Battery type Cell Type Nominal voltage Cell energy capacity Nominal rated capacity Charge and discharge cycles
Specifications
NiMH (Nickel Metal-Hydride) A 8.4 V 4200 mAH 27 Watt-hours 500 (minimum)
Theory of Operation 4-9
4.2.9.4
DC-DC Converter/Battery Charger Circuit
The power supply board includes two DC-DC Converter circuits and a battery charging circuit that operate the notebook and charge the internal batteries when the AC Adapter is attached to the notebook. The converters operate from an input voltage between 7 VDC and 20 VDC (from the AC adapter) and generate the regulated voltages required to power all internal logic circuits and charge the internal batteries. When the AC adapter is not used, the DC-DC converters are powered by the output of the internal battery pack (s) (nominal 8.4V).
4-10
Theory of Operation
5 Troubleshooting Procedures
5.1
· · ·
General
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
·
Overview of Fault Isolation Process
The fault isolation process (summarized in Figure 5-1) consists of the following: Quick Check of the following: · · Notebook power system (including battery packs and AC Adapter connections)- refer to Paragraph 5.4. Switch settings (ensure Power switch is On, and press Standby switch to ensure that Notebook is not in Standby mode; press Shift 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 (refer to Paragraph 5.3 and Table 5-1). Record and attempt to resolve any series of beeps emitted from the notebook indicating test failure (refer to Table 5-2).
Troubleshooting Procedures 5-1
START
COMPUTER TROUBLE INDICATION ?
YS E
NO
When Power button is pressed, no indication of power is present (dark LCD, no Status icons lit, no disk drive activity, etc.) Press Power button; Selftest automatically runs when power turned on.
DEAD COMPUTER SYMPTOMS ? NO RUN SELF TEST
YES
SEE PARAGRAPHS 5.3.1 & 5.3.2
ERROR MESSAGE ?
NO
YE S
SEE PARAGRAPH 5.3.3
MODEM PROBLEM ?
YES
SEE PARAGRAPH 5.3.4
NO RUN DIAGNOSTICS
DIAGNOSTICS ERROR MSG ? NO
YES
See Appendix B (PC-Doctor)
Figure 5-1 Troubleshooting Flowchart
5-2 Troubleshooting Procedures
· · · · ·
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 (refer to 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 block diagram, shown in Figure 5-2, is useful in performing fault analysis of various internal subsystems. For example, an LCD hardware problem can be traced to either the LCD, Inverter Board, or Power Supply Board. Other subsystem problems can be isolated in a similar fashion using the detailed block diagram as a troubleshooting tool.
5.3
Troubleshooting Procedures
The built-in self test program and the disk resident diagnostics program (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 5.3.3 for further instructions.
5.3.1
Troubleshooting a Power Supply Problem
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 Pack, or faulty Power Supply Board). With a power problem, the status screen and the LCD are both blank, 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:
·
AC Adapter and Battery- Plug in the AC adapter and double check all connections on the adapter and computer. Ensure that the notebook Power button is set to the On position and that the system is not in standby or sleep modes. Measure the voltage at the AC outlet or plug in a known good appliance (e.g. a lamp) to verify that voltage is present. If the voltage is okay, try replacing the AC adapter. Troubleshooting Procedures 5-3
·
· ·
Check to see that the battery pack is installed correctly (try using a recharged battery pack if battery is discharged) 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.
PCMCIA Option Slot(s)
PCMCIA Adapter UM8365A PCI Bus
Cache MEMORY CPU Data DBC 82C556 Pentium Processor (P54C/LM)
MAIN BOARD
SYSTEM & SVGA BIOS
Drivers/ Receivers
Expansion Bus Connector
RS232 SERIAL PORT
Memory Data PCI Bus IPC DRAM (2 Bank)
Super I/O Controller
INTERNAL 1.44 MB FLOPPY DISK DRIVE
CPU Address
System Controller 82C557
SIMM Memory Expansion Modules
PCI Bus IR/Audio IR/Sound Board Boar d 1 MB Video RAM
PARALLEL PRINTER PORT
SIR In terface
HDD
RTC 82C602A
Audio IN/OUT Mic In
Input From AC Adap te r
CD-ROM
Video Controller
PMU/Keyboard Controller
Battery Packs
Internal Gl i depad
EXTERNAL SVGA MONITOR
INTERNAL KEYBOARD
INTERNAL LCD DISPLAY
640 X 480 SVGA LCD
Figure 5-2
Troubleshooting Block Diagram
5-4 Troubleshooting Procedures
5.3.2
Troubleshooting a Display Problem
If the LCD remains blank when you turn on the computer, and the status ICONs light on the Status display panel above the keyboard, check the following controls on the display:
· · · ·
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 Mode. Press the Power button to power up the system. Notebook Set for External Monitor - 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.
5.3.3
Fault Isolation Using Self Test
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.
n
Note: Some procedures in this paragraph require you to use keystroke sequences, such as Ctrl-Alt-Del. To execute a keystroke sequence such as this, you must press all three keys simultaneously.
5.3.3.1
Self Test Error Messages
Upon successful completion of the self test, the computer automatically loads 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
PCMCIA Modem Problems
If an optional PCMCIA modem does not work properly, check the following items:
· ·
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.
Troubleshooting Procedures 5-5
· · ·
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. I/O Address Conflict - The multimedia sound capability of the Extensa uses I/O address 220. However, this may conflict with some third-party PCMCIA cards like the IBM Token Ring card. In this case, reset the Extensa multimedia sound to I/O address 240 as shown in Figure 5-3.
I/O Address 220 (Both switches in lower position)
I/O Address 240 (Both switches in upper position)
NOTE: Lift keyboard to access IR/Sound Board DIP Switch
Figure 5-3 I/O Address Setting (IR/Sound Board)
5.3.5
Fault Isolation Using Diagnostics
PC-Doctor supplied with the Extensa 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 syste