Acer 390 Series User manual

390 Series390 Series
Notebook ComputerNotebook Computer
Service Guide
PART NO.: 49.43A02.001
DOC. NO.: SG234-9710A PRINTED IN TAIWAN

ii
CopyrightCopyright
Copyright 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.
DisclaimerDisclaimer
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.

iii
About this ManualAbout 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 1 System 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 2 Major 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 3 BIOS Setup Utility
This chapter describes the parameters in the BIOS Utility screens.
Chapter 4 Disassembly and Unit Replacement
This chapter describes how to disassemble the 390 series notebook computer to make
replacements or upgrades.
Appendix A Model Number Definition
This appendix shows the different configuration options for the 390 series notebook
computer.
Appendix B Exploded View Diagram
This appendix illustrates the system board and CPU silk screens.
Appendix C Spare Parts List
This appendix lists the spare parts for the 390 series notebook computer with their part
numbers and other information.

iv
Appendix D Schematics
This appendix contains the schematic diagrams for the system board.
Appendix E BIOS POST Checkpoints
This appendix lists and describes the BIOS POST checkpoints.
Conventions
The following are the conventions used in this manual:
Text entered by user Represents text input by the user.
Screen messages Denotes 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.

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

vi
1.4.24 LCD .....................................................................................................1-21
1.4.25 AC Adapter..........................................................................................1-22
1.5 Software Configuration and Specification............................................................1-23
1.5.1 BIOS....................................................................................................1-23
1.5.2 Drivers, Applications and Utilities.........................................................1-29
1.6 Block Diagrams ..................................................................................................1-31
1.6.1 System.................................................................................................1-31
1.6.2 Clock ...................................................................................................1-32
1.7 Environmental Requirements..............................................................................1-33
1.8 Mechanical Specifications...................................................................................1-34
Chapter 2 Major Chips Description
2.1 PCI 1250A............................................................................................................2-2
2.1.1 Features.................................................................................................2-2
2.1.2 Block Diagram .......................................................................................2-4
2.1.3 Terminal Functions ................................................................................2-5
2.2 Aladdin IV (M1531/M1533) .................................................................................2-20
2.2.1 M1531..................................................................................................2-20
2.2.2 M1533..................................................................................................2-34
2.3 FDC37C672........................................................................................................2-47
2.3.1 Features...............................................................................................2-47
2.3.2 General Description .............................................................................2-49
2.3.3 Pin Configuration .................................................................................2-50
2.3.4 Pin Descriptions...................................................................................2-52
2.3.5 Description of Multifunction Pins..........................................................2-55
2.3.6 Block Diagram .....................................................................................2-56
2.4 65555 .................................................................................................................2-57
2.4.1 Features...............................................................................................2-57
2.4.2 Software Support Features...................................................................2-59
2.4.3 Introduction / Overview........................................................................2-61
2.4.4 Pin Descriptions...................................................................................2-63
2.5 M38813 ..............................................................................................................2-77
2.5.1 Overview .............................................................................................2-77
2.5.2 Description...........................................................................................2-77

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

viii
Appendices
Appendix A Model Number Definition
Appendix B Exploded View Diagram
Appendix C Spare Parts List
Appendix D Schematics
Appendix E BIOS POST Checkpoints

ix
List of Figures
1-1 PCB No. 96183-1A Mainboard Layout (Top) ........................................................ 1-2
1-2 PCB No. 96183-1A Mainboard Layout (Bottom)................................................... 1-3
1-3 PCB No. 96534-SE CPU Board Layout (Top)....................................................... 1-4
1-4 PCB No. 96534-SE CPU Board Layout (Bottom).................................................. 1-4
1-5 PCB No. 97355-1 Audio Board............................................................................. 1-5
1-6 PCB No. 97348-1 Battery Board .......................................................................... 1-5
1-7 PCB No. 97349-1 Keyboard/Touchpad Board (Top View) .................................... 1-6
1-8 PCB No. 97349-1 Keyboard/Touchpad Board (Bottom View) ............................... 1-6
1-9 Jumpers and Connectors (Top View) ................................................................... 1-7
1-10 Jumpers and Connectors (Bottom View) .............................................................. 1-8
1-11 Power Management Block Diagram....................................................................1-24
1-12 System Block Diagram........................................................................................1-31
1-13 Clock Block Diagram ..........................................................................................1-32
2-1 PCI1250 Block Diagram....................................................................................... 2-4
2-2 M1531 Pin Diagram (Top View) ..........................................................................2-23
2-3 M1533 Pin Diagram (Top View) ..........................................................................2-39
2-4 FDC37C67 (TQFP) Pin Diagram.........................................................................2-50
2-5 FDC37C67 (QFP) Pin Diagram...........................................................................2-51
2-6 FDC37C67 Block Diagram..................................................................................2-56
2-7 65555 BGA Ball Assignments (Top View) ...........................................................2-64
2-8 65555 BGA Ball Assignments (Bottom View) ......................................................2-65
2-9 M38813 Pin Diagram..........................................................................................2-78
2-10 M38813 Block Diagram.......................................................................................2-80
2-11 YMF715 Block Diagram......................................................................................2-82
4-1 Removing the Battery Pack ................................................................................. 4-2
4-2 Using Connectors With Locks .............................................................................. 4-3
4-3 Disassembly Sequence Flowchart........................................................................ 4-5
4-4 Removing the Memory Door................................................................................ 4-6
4-5 Installing and Removing Memory......................................................................... 4-7
4-6 Removing the Modem Board ............................................................................... 4-8
4-7 Removing the Hard Disk Drive............................................................................. 4-9
4-8 Removing the Display Hinge Covers...................................................................4-10
4-9 Removing the Keyboard .....................................................................................4-10
4-10 Unplugging the Keyboard Connectors.................................................................4-11

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

xi
List of Tables
1-1 CPU Mounting Reference Table........................................................................... 1-5
1-2 SW1 Switch Settings ........................................................................................... 1-8
1-3 Memory Address Map.......................................................................................... 1-9
1-4 Interrupt Channel Map ......................................................................................... 1-9
1-5 DMA Channel Map..............................................................................................1-10
1-6 I/O Address Map.................................................................................................1-10
1-7 Processor Specifications.....................................................................................1-11
1-8 BIOS Specifications............................................................................................1-11
1-9 Memory Configurations.......................................................................................1-12
1-10 Video RAM Configuration....................................................................................1-13
1-11 Video Hardware Specification.............................................................................1-13
1-12 Supported External CRT Resolutions..................................................................1-13
1-13 Supported LCD Resolutions................................................................................1-14
1-14 Parallel Port Configurations ................................................................................1-14
1-15 Serial Port Configurations...................................................................................1-15
1-16 Audio Specifications ...........................................................................................1-15
1-17 PCMCIA Specifications.......................................................................................1-16
1-18 Touchpad Specifications.....................................................................................1-16
1-19 Keyboard Specifications......................................................................................1-16
1-20 Windows 95 Key Descriptions.............................................................................1-17
1-21 FDD Specifications.............................................................................................1-17
1-22 HDD Specifications.............................................................................................1-18
1-23 CD-ROM Specifications......................................................................................1-18
1-24 Battery Specifications .........................................................................................1-19
1-25 Charger Specifications........................................................................................1-20
1-26 DC-DC Converter Specifications.........................................................................1-20
1-27 DC-AC Inverter Specifications ............................................................................1-21
1-28 LCD Specifications .............................................................................................1-21
1-29 AC Adapter Specifications ..................................................................................1-22
1-30 Hotkey Descriptions............................................................................................1-23
1-31 Standby Mode Conditions and Descriptions ........................................................1-25
1-32 Light Green Mode Conditions and Descriptions...................................................1-26
1-33 Hibernation Mode Conditions and Descriptions ...................................................1-27
1-34 Display Standby Mode Conditions and Descriptions............................................1-27

xii
1-35 Hard Disk Standby Mode Conditions and Descriptions........................................1-28
1-36 Location of Drivers in the System Utility CD........................................................1-29
1-37 Location of Applications in the System Utility CD................................................1-30
1-38 Environmental Requirements..............................................................................1-33
1-39 Mechanical Specifications...................................................................................1-34
2-1 Major Chips List....................................................................................................2-1
2-2 PCI1250 Terminal Functions.................................................................................2-5
2-3 M1531 Signal Descriptions..................................................................................2-24
2-4 M1531 Numerical Pin List...................................................................................2-28
2-5 M1533 Numerical Pin List...................................................................................2-40
2-6 FDC37C67 Pin Descriptions ...............................................................................2-52
2-7 FDC37C67 Multifunction Pin Descriptions...........................................................2-55
2-8 65555 Pin Functions...........................................................................................2-66
2-9 M38813M4-XXXHP Functions.............................................................................2-77
2-10 M38813M4-XXXHP Pin Description ....................................................................2-79
2-11 YMF715 Descriptions..........................................................................................2-83
3-1 Basic System Settings Parameters.......................................................................3-3
3-2 Startup Configuration Parameters.........................................................................3-4
3-3 Onboard Devices Configuration Parameters.........................................................3-6
3-4 System Security Parameters.................................................................................3-8
3-5 Power Management Settings Parameters .............................................................3-9
4-1 Guide to Disassembly Sequence ..........................................................................4-4
B-1 Exploded View Diagram List................................................................................B-1
C-1 Spare Parts List...................................................................................................C-1
D-1 Schematics List ...................................................................................................D-1
E-1 POST Checkpoint List..........................................................................................E-1

C h a p t e r 1C h a p t e r 1
System Introduction
System Introduction 1-1
1.1 Overview
This computer combines high-performance, versatility, power management features and
multimedia capabilities with unique style and ergonomic design. This computer was designed with
the user in mind. Here are just a few of its many features:
•Performance
•Intel Pentium® processor with MMX™ technology
•64-bit main memory and external (L2) cache memory
•Large LCD display and PCI local bus video with graphics acceleration
•Internal CD-ROM drive and external 3.5-inch floppy drive, or internal 3.5-inch floppy drive
•High-capacity, Enhanced-IDE hard disk
•Lithium-Ion or Nickel Metal-Hydride battery pack
•Power management system with light green, standby and hibernation power saving modes
•Multimedia
•16-bit high-fidelity stereo audio with 3-D sound
•Built-in dual speakers
•Ultra-slim, high-speed CD-ROM drive
•Connectivity
•High-speed fax/data modem port
•Fast infrared wireless communication
•USB (Universal Serial Bus) port
•Human-centric Design and Ergonomics
•Lightweight and slim
•Sleek, smooth and stylish design
•Full-sized keyboard and wide palmrest
•Ergonomically-centered touchpad pointing device
•Expansion
•CardBus PC card (formerly PCMCIA) slots (two type II/I or one type III) with ZV (Zoomed
Video) port support
•Port replicator option for one-step connect/disconnect from peripherals
•User-upgradeable memory and hard disk

1-2Service Guide
1.2 System Board Layout
1.2.1 Mainboard
Figure 1-1PCB No. 96183-1A Mainboard Layout (Top)

System Introduction 1-3
Figure 1-2PCB No. 96183-1A Mainboard Layout (Bottom)

1-4Service Guide
1.2.2 CPU Board
Figure 1-3PCB No. 96534-SE CPU Board Layout (Top)
Figure 1-4PCB No. 96534-SE CPU Board Layout (Bottom)

System Introduction 1-5
The following table is a reference when mounting1the CPU.
Table 1-1CPU Mounting Reference Table
Volt. Ext Freq Ratio
CPU Volt Freq R4 R6 R8 R11 R20 R22 R24 R26 RX14 RY1 RX6 RX9 RX11 RX12 UX2 UX3
P55C-133MHz 2.5V 133=66x2 V X V X V X X V V X V X X X X X
P55C-150MHz 2.5V 150=60x2.5 V X V V X X V V V X V X X X X X
P55C-166MHz 2.5V 166=66x2.5 V X V X X X V V V X V X X X X X
TLMK-200MHz 1.8V 200=66x3 X X V X X V V X V X X V V V V V
TLMK-233MHz 1.8V 233=66x3.5 X X V X V V X X V X X V V V V V
TLMK-266MHz 2.0V 266=66x4 X V V X X X V V X V X V V V V V
1.2.3 Audio Board
Figure 1-5PCB No. 97355-1 Audio Board
1.2.4 Battery Board
Figure 1-6PCB No. 97348-1 Battery Board
1V: mount on; X: not mount on

1-6Service Guide
1.2.5 Keyboard/Touchpad Board
Figure 1-7PCB No. 97349-1 Keyboard/Touchpad Board (Top View)
Figure 1-8PCB No. 97349-1 Keyboard/Touchpad Board (Bottom View)

System Introduction 1-7
1.3 Jumpers and Connectors
TOP VIEW
CN1 USB port CN14 Audio board cable connector
CN2 Parallel port CN15 Internal speaker connector (right)
CN3 Serial port CN16 PCMCIA socket connector
CN4 VGA port CN17 FDD/CD-ROM connector
CN5 Port replicator port CN18 Internal keyboard/touchpad connector
CN6 RJ-11 phone jack CN19 HDD connector
CN7 DC-DC connector CN20 CD-ROM connector
CN8 Inverter connector CN21 CPU board connector
CN9 LCD connector CN22 Battery connector
CN10 Charger connector GF1 Golden finger for debug card
CN11 Charger connector SW1 KB/password/logo setting switch
CN12 Fan connector U1 FIR port
CN13 Internal speaker connector (left)
Figure 1-9Jumpers and Connectors (Top View)
CN1 CN4 CN5 CN8 CN12 CN2 CN3 U1
GF1
CN15
CN14
CN17
CN21
CN20
CN22
CN6
CN9
CN16
SW1
CN18
CN19
CN7
CN11
CN10
CN13

1-8Service Guide
BOTTOM VIEW
CN23 Modem connector
CN24 Modem connector
DIMM DIMM sockets
Figure 1-10 Jumpers and Connectors (Bottom View)
The following tables list the switch settings for SW1.
Table 1-2SW1 Switch Settings
ON OFF
Switch 1 (Logo Screen) OEM Acer
Switch 2 (Password) Bypass Check
Germany U.S. Japanese
Switch 3 (KB Language) On Off Off
Switch 4 (KB Language) Off Off On
CN24
CN23
DIMM