Acer Extensa 390 Service Guide

							390 Series 390 Series
Notebook Computer Notebook Computer
Service GuidePART NO.:  49.43A02.001
DOC. NO.:   SG234-9710APRINTED IN TAIWAN 
						

							iiCopyright Copyright
Copyright  ã  1997 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 to make
changes from time to time in the contents hereof without obligation of Acer Incorporated to notify
any person of such revision or changes.
Intel is a registered trademark and Pentium is a trademark of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders. 
						

							iiiAbout this Manual About this Manual
Purpose
This service guide aims to furnish technical information to the service engineers and advanced
users when upgrading, configuring, or repairing the 390 series notebook computer.
Manual Structure
This service guide contains technical information about the 390 series notebook computer.  It
consists of three chapters and five appendices.
Chapter  1System Introduction
This chapter describes the system features and major components.  It contains the 390
series notebook computer board layout, block diagrams, cache and memory configurations,
power management and mechanical specifications.
Chapter  2Major Chips Description
This chapter describes the features and functions of the major chipsets used in the system
board.  It also includes chipset block diagrams, pin diagrams, and pin descriptions.
Chapter  3BIOS Setup Utility
This chapter describes the parameters in the BIOS Utility screens.
Chapter  4Disassembly and Unit Replacement
This chapter describes how to disassemble the 390 series notebook computer to make
replacements or upgrades.
Appendix  AModel Number Definition
This appendix shows the different configuration options for the 390 series notebook
computer.
Appendix  BExploded View Diagram
This appendix illustrates the system board and CPU silk screens.
Appendix  CSpare Parts List
This appendix lists the spare parts for the 390 series notebook computer with their part
numbers and other information. 
						

							ivAppendix  DSchematics
This appendix contains the schematic diagrams for the system board.
Appendix  EBIOS POST Checkpoints
This appendix lists and describes the BIOS POST checkpoints.
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., , , 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. 
						

							vTable of Contents Table of Contents
Chapter  1System Introduction
1.1Overview.............................................................................................................1-1
1.2System Board Layout...........................................................................................1-2
1.2.1Mainboard.............................................................................................1-2
1.2.2CPU Board............................................................................................1-4
1.2.3Audio Board..........................................................................................1-5
1.2.4Battery Board........................................................................................1-5
1.2.5Keyboard/Touchpad Board....................................................................1-6
1.3Jumpers and Connectors.....................................................................................1-7
1.4Hardware Configuration and Specification............................................................1-9
1.4.1Memory Address Map...........................................................................1-9
1.4.2Interrupt Channel Map...........................................................................1-9
1.4.3DMA Channel Map...............................................................................1-10
1.4.4I/O Address Map..................................................................................1-10
1.4.5Processor.............................................................................................1-11
1.4.6BIOS....................................................................................................1-11
1.4.7System Memory...................................................................................1-11
1.4.8Second-Level Cache............................................................................1-12
1.4.9Video Memory......................................................................................1-13
1.4.10Video...................................................................................................1-13
1.4.11Parallel Port.........................................................................................1-14
1.4.12Serial Port............................................................................................1-15
1.4.13Audio...................................................................................................1-15
1.4.14PCMCIA...............................................................................................1-15
1.4.15Touchpad.............................................................................................1-16
1.4.16Keyboard.............................................................................................1-16
1.4.17FDD.....................................................................................................1-17
1.4.18HDD.....................................................................................................1-18
1.4.19CD-ROM..............................................................................................1-18
1.4.20Battery.................................................................................................1-19
1.4.21Charger................................................................................................1-19
1.4.22DC-DC Converter.................................................................................1-20
1.4.23DC-AC Inverter....................................................................................1-21 
						

							vi1.4.24LCD.....................................................................................................1-21
1.4.25AC Adapter..........................................................................................1-22
1.5Software Configuration and Specification............................................................1-23
1.5.1BIOS....................................................................................................1-23
1.5.2Drivers, Applications and Utilities.........................................................1-29
1.6Block Diagrams..................................................................................................1-31
1.6.1System.................................................................................................1-31
1.6.2Clock...................................................................................................1-32
1.7Environmental Requirements..............................................................................1-33
1.8Mechanical Specifications...................................................................................1-34
Chapter  2Major Chips Description
2.1PCI 1250A............................................................................................................2-2
2.1.1Features.................................................................................................2-2
2.1.2Block Diagram.......................................................................................2-4
2.1.3Terminal Functions................................................................................2-5
2.2Aladdin IV (M1531/M1533).................................................................................2-20
2.2.1M1531..................................................................................................2-20
2.2.2M1533..................................................................................................2-34
2.3FDC37C672........................................................................................................2-47
2.3.1Features...............................................................................................2-47
2.3.2General Description.............................................................................2-49
2.3.3Pin Configuration.................................................................................2-50
2.3.4Pin Descriptions...................................................................................2-52
2.3.5Description of Multifunction Pins..........................................................2-55
2.3.6Block Diagram.....................................................................................2-56
2.465555.................................................................................................................2-57
2.4.1Features...............................................................................................2-57
2.4.2Software Support Features...................................................................2-59
2.4.3Introduction / Overview........................................................................2-61
2.4.4Pin Descriptions...................................................................................2-63
2.5M38813..............................................................................................................2-77
2.5.1Overview.............................................................................................2-77
2.5.2Description...........................................................................................2-77 
						

							vii2.5.3Pin Configuration.................................................................................2-78
2.5.4Pin Descriptions...................................................................................2-79
2.6YMF715B-S........................................................................................................2-81
2.6.1Features...............................................................................................2-81
2.6.2Pin Diagram.........................................................................................2-82
2.6.3Pin Descriptions...................................................................................2-83
Chapter  3BIOS Setup Utility
3.1Basic System Settings.........................................................................................3-3
3.2Startup Configuration...........................................................................................3-4
3.3Onboard Devices Configuration...........................................................................3-6
3.4System Security...................................................................................................3-8
3.5Power Management Settings...............................................................................3-9
3.6Load Default Settings..........................................................................................3-11
Chapter  4Disassembly and Unit Replacement
4.1General Information.............................................................................................4-1
4.1.1Before You Begin..................................................................................4-1
4.1.2Connector Types...................................................................................4-3
4.1.3Disassembly Sequence.........................................................................4-4
4.2Installing Memory.................................................................................................4-6
4.3Removing the Modem Board...............................................................................4-8
4.4Removing the Hard Disk Drive.............................................................................4-9
4.5Removing the Keyboard.....................................................................................4-10
4.6Disassembling the Inside Frame Assembly.........................................................4-12
4.6.1Removing the Heat Sink Assembly......................................................4-12
4.6.2Removing the Display..........................................................................4-13
4.6.3Removing the Internal Drive.................................................................4-14
4.6.4Replacing the CPU...............................................................................4-15
4.6.5Detaching the Top Cover.....................................................................4-16
4.6.6Removing the Mainboard.....................................................................4-17
4.6.7Disassembling the Mainboard..............................................................4-19
4.6.8Disassembling the Top Cover..............................................................4-20
4.7Disassembling the Display..................................................................................4-22 
						

							viiiAppendices
Appendix  AModel Number Definition
Appendix  BExploded View Diagram
Appendix  CSpare Parts List
Appendix  DSchematics
Appendix  EBIOS POST Checkpoints 
						

							ixList  of  Figures
1-1PCB No. 96183-1A Mainboard Layout (Top)........................................................1-2
1-2PCB No. 96183-1A Mainboard Layout (Bottom)...................................................1-3
1-3PCB No. 96534-SE CPU Board Layout (Top).......................................................1-4
1-4PCB No. 96534-SE CPU Board Layout (Bottom)..................................................1-4
1-5PCB No. 97355-1 Audio Board.............................................................................1-5
1-6PCB No. 97348-1 Battery Board..........................................................................1-5
1-7PCB No. 97349-1 Keyboard/Touchpad Board (Top View)....................................1-6
1-8PCB No. 97349-1 Keyboard/Touchpad Board (Bottom View)...............................1-6
1-9Jumpers and Connectors (Top View)...................................................................1-7
1-10Jumpers and Connectors (Bottom View)..............................................................1-8
1-11Power Management Block Diagram....................................................................1-24
1-12System Block Diagram........................................................................................1-31
1-13Clock Block Diagram..........................................................................................1-32
2-1PCI1250 Block Diagram.......................................................................................2-4
2-2M1531 Pin Diagram (Top View)..........................................................................2-23
2-3M1533 Pin Diagram (Top View)..........................................................................2-39
2-4FDC37C67 (TQFP) Pin Diagram.........................................................................2-50
2-5FDC37C67 (QFP) Pin Diagram...........................................................................2-51
2-6FDC37C67 Block Diagram..................................................................................2-56
2-765555 BGA Ball Assignments (Top View)...........................................................2-64
2-865555 BGA Ball Assignments (Bottom View)......................................................2-65
2-9M38813 Pin Diagram..........................................................................................2-78
2-10M38813 Block Diagram.......................................................................................2-80
2-11YMF715 Block Diagram......................................................................................2-82
4-1Removing the Battery Pack.................................................................................4-2
4-2Using Connectors With Locks..............................................................................4-3
4-3Disassembly Sequence Flowchart........................................................................4-5
4-4Removing the Memory Door................................................................................4-6
4-5Installing and Removing Memory.........................................................................4-7
4-6Removing the Modem Board...............................................................................4-8
4-7Removing the Hard Disk Drive.............................................................................4-9
4-8Removing the Display Hinge Covers...................................................................4-10
4-9Removing the Keyboard.....................................................................................4-10
4-10Unplugging the Keyboard Connectors.................................................................4-11 
						

							x4-11Removing the LED Cover...................................................................................4-12
4-12Removing the Heat Sink Assembly.....................................................................4-12
4-13Unplugging the Display Cable.............................................................................4-13
4-14Removing the Display Hinge Screws..................................................................4-13
4-15Removing the Display Hinge Screws..................................................................4-14
4-16Removing the Internal Drive...............................................................................4-15
4-17Replacing the CPU.............................................................................................4-15
4-18Removing Cables...............................................................................................4-16
4-19Detaching the Top Cover....................................................................................4-16
4-20Removing the Bottom Screws.............................................................................4-17
4-21Removing the Keyboard/Touchpad Board and DC-DC Converter Board Cover...4-17
4-22Removing the DC-DC Converter Board..............................................................4-18
4-23Removing the Mainboard....................................................................................4-18
4-24Removing the Charger Board.............................................................................4-19
4-25Removing the PCMCIA Sockets.........................................................................4-19
4-26Removing the Hard Disk Drive Heat Sink...........................................................4-20
4-27Removing the Audio Board.................................................................................4-20
4-28Removing the Touchpad and Speakers..............................................................4-21
4-29Removing the LCD Bumpers..............................................................................4-22
4-30Removing the Display Bezel Screws...................................................................4-22
4-31Removing the Display Bezel...............................................................................4-23
4-32Removing the Inverter Board..............................................................................4-23
4-33Removing the LCD Panel...................................................................................4-24