Acer Extensa 670 Service Guide

							Extensa 670 Extensa 670
Service GuidePART NO.:  49.47010.001
DOC. NO.:  SG248-9708APRINTED IN TAIWAN 
						

							iiCopyright Copyright
Copyright © 1996 by Acer Incorporated.  All rights reserved.  No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical,
chemical, manual or otherwise, without the prior written permission of Acer Incorporated.
Disclaimer Disclaimer
Acer Incorporated makes no representations or warranties, either expressed or implied, with
respect to the contents hereof and specifically disclaims any warranties of merchantability or fitness
for any particular purpose.  Any Acer Incorporated software described in this manual is sold or
licensed as is.  Should the programs prove defective following their purchase, the buyer (and not
Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing,
repair, and any incidental or consequential damages resulting from any defect in the software.
Further, Acer Incorporated reserves the right to revise this publication and make changes from time
to time in the contents hereof without obligation of Acer Incorporated to notify any person of such
revision or changes.
Acer is a registered trademark of Acer Incorporated.
IBM, PS/2 and OS/2 are registered trademarks of International Business Machines Corporation.
Intel and Pentium are registered trademarks of Intel Corporation.
MS-DOS, Windows and Windows 95 are registered trademarks of Microsoft Corporation.
Other brands and product names are trademarks and/or registered trademarks of their respective
holders. 
						

							iii About this Manual About this Manual
Purpose
This service guide contains reference information for the Extensa 670 computer.  It gives the
system and peripheral specifications, shows how to identify and solve system problems and
explains the procedure for removing and replacing system components.  It also gives information
for ordering spare parts.
Manual Structure
This service guide consists of six chapters and one appendices as follows:
Chapter  1General Description
This chapter contains a general overview of the system, describes the standard and optional
features, and identifies the major assemblies and subassemblies. This section also contains
detailed functional and environmental specifications.
Chapter  2Installation
This chapter contains unpacking and preparation for use instructions for the system.
Chapter  3Operating Instructions
This chapter contains a summary of notebook operating procedures useful for maintenance
operations.
Chapter  4Theory of Operation
This chapter contains a general block diagram theory of operation description and major
chips introductions.
Chapter  5Troubleshooting Procedures
This chapter contains an overview of the fault isolation process, provides guidelines for
isolating 67x series computer malfunctions to replaceable subassemblies and provides
instructions for executing diagnostics and interpreting error messages.
Chapter  6Field Service
This chapter contains the machine disassembly and unit replacement information.
Appendix  AMaintenance Data
This appendix contains the FRU information, jumper settings information and schematic
diagrams of the system. 
						

							iv Related product information
Extensa 670 Users Manual contains system description and general operating instructions.
ALi M1521/M1523 Chipset Data Sheets contain information on the system core chips .
C&T 65550 Data Sheet contains detailed information on the VGA controller.
ALi M6377 Chipset Data Sheet contains detailed information on the power management
controller.
ES1878 Data Sheet contains detailed information on the audio controller.
NS87336VJG Data Sheet contains detailed information on the super I/O controller.
TI1130 Data Sheet contains detailed information on the PCMCIA controller.
PCI0643 Data Sheets contain detailed information on the CMD PCI IDE controller.
T62.045.C.00 Data Sheets contain detailed information on the charger board component.
DAC-07B008 Data Sheets contain detailed information on the LCD inverter component
DC-R05 Data Sheets contain detailed information on the LCD ID board component
M38802 Data Sheet contains detailed information on the Phoenix keyboard controller. 
						

							v Conventions
The following are the conventions used in this manual:
Text entered by userRepresents text input by the user.
Screen messagesDenotes actual messages that appear onscreen.
a, e, s, etc.Represent the actual keys that you have to press on the
keyboard.NOTE
Gives bits and pieces of additional information related to the
current topic.WARNING
Alerts you to any damage that might result from doing or not
doing specific actions.CAUTION
Gives precautionary measures to avoid possible hardware or
software problems.IMPORTANT
Reminds you to do specific actions relevant to the
accomplishment of procedures.TIP
Tells how to accomplish a procedure with minimum steps
through little shortcuts. 
						

							viTable of Contents Table of Contents
Chapter 1General Introduction
1.1. Introduction..................................................................................................................1-1
1.2. Notebook Model Number Definition.............................................................................1-2
1.3. Product Overview.........................................................................................................1-3
1.3.1 Video Display Features...................................................................................1-5
1.3.2 Software Features...........................................................................................1-5
1.3.3 67x Series External Ports...............................................................................1-6
1.3.4 Standard Peripheral Devices..........................................................................1-7
1.3.5 Expansion Capabilities....................................................................................1-7
1.3.6 PCMCIA Card Options....................................................................................1-8
1.4. Standard Test Features...............................................................................................1-9
1.4.1 Power On Self Test.........................................................................................1-9
1.5. Extensa 67x Series Specifications.............................................................................1-10
1.6. Regulatory Agency Approvals....................................................................................1-12
Chapter 2Installation
2.1. Introduction..................................................................................................................2-1
2.2. Unpacking Instructions................................................................................................2-1
2.3. Installing Internal Notebook Options............................................................................2-2
2.3.1 Installing Main Memory Expansion (Optional)................................................2-2
2.3.2 Setting up the Software...................................................................................2-3
2.4. Installing External Options...........................................................................................2-4
2.4.1 Installing PCMCIA Options.............................................................................2-4
2.5. Installing External Notebook Options...........................................................................2-5
2.5.1 Installing Ext. Keyboard/Mouse/Numeric Keypad...........................................2-5
2.5.2 Installing an External Parallel Printer or Floppy Drive.....................................2-6 
						

							vii 2.5.3 Installing an External Serial Port Device.........................................................2-7
2.5.4 Installing an External VGA Monitor.................................................................2-8
2.5.5 Installing the Security Lock Option..................................................................2-9
2.6. Battery Pack Installation............................................................................................2-10
2.7. Installing the AC Power Adapter................................................................................2-11
2.8. Initial System Checkout.............................................................................................2-12
2.9. Making Backups of System Software.......................................................................2-12
Chapter 3Operating Instructions
3.1. Introduction..................................................................................................................3-1
3.2. Controls/Indicators.......................................................................................................3-1
3.2.1 Power On/Off Switch......................................................................................3-1
3.2.2 Notebook LEDs...............................................................................................3-1
Chapter 4Theory of Operation
4.1. Introduction..................................................................................................................4-1
4.2. Notebook Functional Overview....................................................................................4-1
4.2.1 System Processor...........................................................................................4-1
4.2.2 Memory Subsystem........................................................................................4-2
4.2.3 Video Subsystem............................................................................................4-2
4.2.4 Sound Subsystem...........................................................................................4-2
4.2.5 Keyboard Subsystem......................................................................................4-3
4.2.6Hard Disk Drive Subsystem............................................................................4-3
4.2.7 Floppy Disk Drive Subsystem.........................................................................4-3
4.2.8 Power Subsystem...........................................................................................4-3
4.3. Detailed Circuit Theory................................................................................................4-4
4.3.1 Major Components.........................................................................................4-4
4.3.2 System Architecture........................................................................................4-5
4.3.3 ALI M1521 (PCI, Cache and Memory Controller)...........................................4-6 
						

							viii4.3.4 ALI M1523 (PCI, Cache and Memory Controller)...........................................4-8
4.3.5 ALI M6377 (Powre Management Unit)..........................................................4-10
4.3.6 C&T 65550 High Performance Flat Panel / CRT VGA Controller.................4-13
4.3.7 TI1130 PCMCIA Controller...........................................................................4-16
4.3.8 NS87336VJG Super I/O Controller...............................................................4-19
4.3.9 ESS1878 Audio Controller with Interface to Expansion Audio Mixer............4-23
Chapter 5Troubleshooting Procedures
5.1. Introduction..................................................................................................................5-1
5.2. Overview of Fault Isolation Process............................................................................5-1
5.3. Troubleshooting Procedures........................................................................................5-2
5.3.1 Troubleshooting a Power Supply Problem......................................................5-2
5.3.2 Troubleshooting a Display Problem................................................................5-2
5.3.3 Fault Isolation Using Self Test........................................................................5-3
5.3.4 PCMCIA Modem Problems.............................................................................5-7
Chapter 6Field Service
6.1. Introduction..................................................................................................................6-1
6.2. Preventive Maintenance..............................................................................................6-1
6.2.1 Cleaning the Computer...................................................................................6-1
6.2.2 Handling the Computer...................................................................................6-1
6.2.3 Handling the Computer Battery Pack..............................................................6-2
6.2.4 Password Caution...........................................................................................6-2
6.3. Required Tools and Equipment...................................................................................6-2
6.4. Notebook FRUs...........................................................................................................6-2
6.5. FRU Removal/Replacement Procedures....................................................................6-3
6.5.1 Removing/Replacing the Notebook Battery Pack...........................................6-4
6.5.2 Removing/Replacing PCMCIA Options..........................................................6-5
6.5.3 Removing/Replacing the Hard Disk Drive Assembly......................................6-6 
						

							ix 6.5.4 Removing/Replacing the Keyboard Assembly................................................6-7
6.5.5 Removing/Replacing Expansion Memory.......................................................6-8
6.5.6 Removing the Heat Sink Assembly................................................................6-9
6.5.7 Removing/Replacing the CPU Chip..............................................................6-10
6.5.8 FDD/CD-ROM Drive Removal......................................................................6-11
6.5.9 Removing/Replacing the Display Assembly.................................................6-12
6.5.10 Removing/Replacing the Top Cover.............................................................6-13
6.5.11 Removing/Replacing FIR/Audio Board.........................................................6-14
6.5.12 Removing/Replacing the Fan Assembly.......................................................6-15
6.5.13 Removing/Replacing the LED Board............................................................6-16
6.5.14 Removing/Replacing Inside Frame Assy......................................................6-16
6.5.15 Removing/Replacing the Battery Board........................................................6-17
6.5.16 Removing/Replacing the Charger Board......................................................6-18
6.5.17Removing/Replacing the Motherboard and Keyboard Connection Board
Assemblies...................................................................................................6-19
6.5.18 Removing/Replacing the PCMCIA Connector Module.................................6-20
6.5.19 Removing/Replacing the Touchpad Assembly.............................................6-21
6.5.20 Removing/Replacing the Display Bezel........................................................6-22
6.5.21 Removing/Replacing the LCD Inverter and LCD ID Boards.........................6-23
6.5.22 Removing/Replacing the LCD Panel...........................................................6-23
Appendix  AMaintenance Data 
						

							xList of Figures List of Figures
1-1 Extensa 67x Series Notebook Computers................................................................1-1
1-2 External Features......................................................................................................1-4
1-3 External Ports............................................................................................................1-6
1-4 Installing PCMCIA Card Options...............................................................................1-8
3-167x Operating Controls and Indicators......................................................................3-1
4-1 Extensa 670 System Architecture Diagram..............................................................4-5
4-2 M1521 Pin Assignments...........................................................................................4-6
4-3 M1523 Chip Simplified Block Diagram......................................................................4-8
4-4 M1523 Chip Pinouts..................................................................................................4-9
4-5 M6377 Chip Simplified Block Diagram....................................................................4-11
4-6 M6377 Chip Pinouts................................................................................................4-12
4-7 C&T65550 Chip Pinouts..........................................................................................4-14
4-8 C&T65550 Chip Simplified Block Diagram.............................................................4-15
4-9 TI1130 Chip PCI-to-PC card (16-bit) Pinouts..........................................................4-16
4-10 TI1130 Chip PCI-to-CardBus (32-bit) Pinouts.........................................................4-17
4-11 TI1130 Chip Simplified Block Diagram...................................................................4-18
4-12 NS87336VJG Chip Pinouts.....................................................................................4-21
4-13 NS87336VJG Chip Simplified Block Diagram.........................................................4-22
4-14ES1878 Chip Pinouts..............................................................................................4-23
6-1 Removing/Installing Cables with Locking-Type Connectors.....................................6-3
6-2 Battery Removal/Replacement.................................................................................6-4
6-3 Installing/Removing PCMCIA Options......................................................................6-5
6-4 Removing the HDD Bay Cover..................................................................................6-6
6-5 Removing/Replacing the Hard Disk Drive Module....................................................6-6
6-6 Removing the Display Hinge Covers.........................................................................6-7
6-7 Removing/Replacing the Keyboard Assembly..........................................................6-7
6-8 Memory Expansion Removal/Replacement.............................................................6-8
6-9 Removing/Replacing the Heat Sink Assembly.........................................................6-9
6-10 Removing/Replacing the CPU Chip.....................................................................6-10
6-11 Removing/Replacing a Module............................................................................6-11
6-12 Unplugging the Display Cable..............................................................................6-12
6-13 Removing the Display Hinge Screws......................................................................6-12
6-14 Removing/Replacing the Top Cover.......................................................................6-13
6-15 Unplugging Cables on FIR/Audio Board.................................................................6-14
6-16 Removing/Replacing the FIR/Audio Board.............................................................6-14