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Service Guide
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Extensa 670
Service Guide
PART NO.: 49.47010.001 DOC. NO.: SG248-9708A
PRINTED IN TAIWAN
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
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.
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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 1
General 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 2
Installation
This chapter contains unpacking and preparation for use instructions for the system.
Chapter 3
Operating Instructions
This chapter contains a summary of notebook operating procedures useful for maintenance operations.
Chapter 4
Theory of Operation
This chapter contains a general block diagram theory of operation description and major chips introductions.
Chapter 5
Troubleshooting 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 6
Field Service
This chapter contains the machine disassembly and unit replacement information.
Appendix A
Maintenance Data
This appendix contains the FRU information, jumper settings information and schematic diagrams of the system.
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Related product information
Extensa 670 User's 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.
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Conventions
The following are the conventions used in this manual:
Text entered by user Screen messages
Represents text input by the user. Denotes actual messages that appear onscreen. 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.
a, e, s, etc.
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Table of Contents Chapter 1
1.1. 1.2. 1.3.
General Introduction
Introduction ..................................................................................................................1-1 Notebook Model Number Definition.............................................................................1-2 Product Overview.........................................................................................................1-3 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 1.3.6 Video Display Features ...................................................................................1-5 Software Features...........................................................................................1-5 67x Series External Ports ...............................................................................1-6 Standard Peripheral Devices ..........................................................................1-7 Expansion Capabilities....................................................................................1-7 PCMCIA Card Options....................................................................................1-8
1.4.
Standard Test Features ...............................................................................................1-9 1.4.1 Power On Self Test.........................................................................................1-9
1.5. 1.6.
Extensa 67x Series Specifications.............................................................................1-10 Regulatory Agency Approvals....................................................................................1-12
Chapter 2
2.1. 2.2. 2.3.
Installation
Introduction ..................................................................................................................2-1 Unpacking Instructions ................................................................................................2-1 Installing Internal Notebook Options............................................................................2-2 2.3.1 2.3.2 Installing Main Memory Expansion (Optional) ................................................2-2 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 2.5.2 Installing Ext. Keyboard/Mouse/Numeric Keypad ...........................................2-5 Installing an External Parallel Printer or Floppy Drive.....................................2-6
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2.5.3 2.5.4 2.5.5 2.6. 2.7. 2.8. 2.9.
Installing an External Serial Port Device.........................................................2-7 Installing an External VGA Monitor .................................................................2-8 Installing the Security Lock Option..................................................................2-9
Battery Pack Installation ............................................................................................2-10 Installing the AC Power Adapter................................................................................2-11 Initial System Checkout .............................................................................................2-12 Making Backups of System Software .......................................................................2-12
Chapter 3
3.1. 3.2.
Operating Instructions
Introduction ..................................................................................................................3-1 Controls/Indicators.......................................................................................................3-1 3.2.1 3.2.2 Power On/Off Switch ......................................................................................3-1 Notebook LEDs...............................................................................................3-1
Chapter 4
4.1. 4.2.
Theory of Operation
Introduction ..................................................................................................................4-1 Notebook Functional Overview....................................................................................4-1 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 4.2.8 System Processor...........................................................................................4-1 Memory Subsystem ........................................................................................4-2 Video Subsystem ............................................................................................4-2 Sound Subsystem...........................................................................................4-2 Keyboard Subsystem......................................................................................4-3 Hard Disk Drive Subsystem............................................................................4-3 Floppy Disk Drive Subsystem .........................................................................4-3 Power Subsystem ...........................................................................................4-3
4.3.
Detailed Circuit Theory ................................................................................................4-4 4.3.1 4.3.2 4.3.3 Major Components .........................................................................................4-4 System Architecture........................................................................................4-5 ALI M1521 (PCI, Cache and Memory Controller) ...........................................4-6 vii
4.3.4 4.3.5 4.3.6 4.3.7 4.3.8 4.3.9
ALI M1523 (PCI, Cache and Memory Controller) ...........................................4-8 ALI M6377 (Powre Management Unit)..........................................................4-10 C&T 65550 High Performance Flat Panel / CRT VGA Controller.................4-13 TI1130 PCMCIA Controller ...........................................................................4-16 NS87336VJG Super I/O Controller ...............................................................4-19 ESS1878 Audio Controller with Interface to Expansion Audio Mixer............4-23
Chapter 5
5.1. 5.2. 5.3.
Troubleshooting Procedures
Introduction ..................................................................................................................5-1 Overview of Fault Isolation Process ............................................................................5-1 Troubleshooting Procedures........................................................................................5-2 5.3.1 5.3.2 5.3.3 5.3.4 Troubleshooting a Power Supply Problem......................................................5-2 Troubleshooting a Display Problem ................................................................5-2 Fault Isolation Using Self Test ........................................................................5-3 PCMCIA Modem Problems.............................................................................5-7
Chapter 6
6.1. 6.2.
Field Service
Introduction ..................................................................................................................6-1 Preventive Maintenance ..............................................................................................6-1 6.2.1 6.2.2 6.2.3 6.2.4 Cleaning the Computer ...................................................................................6-1 Handling the Computer ...................................................................................6-1 Handling the Computer Battery Pack..............................................................6-2 Password Caution...........................................................................................6-2
6.3. 6.4. 6.5.
Required Tools and Equipment ...................................................................................6-2 Notebook FRUs ...........................................................................................................6-2 FRU Removal/Replacement Procedures ....................................................................6-3 6.5.1 6.5.2 6.5.3 Removing/Replacing the Notebook Battery Pack ...........................................6-4 Removing/Replacing PCMCIA Options ..........................................................6-5 Removing/Replacing the Hard Disk Drive Assembly ......................................6-6
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6.5.4 6.5.5 6.5.6 6.5.7 6.5.8 6.5.9
Removing/Replacing the Keyboard Assembly................................................6-7 Removing/Replacing Expansion Memory.......................................................6-8 Removing the Heat Sink Assembly ................................................................6-9 Removing/Replacing the CPU Chip..............................................................6-10 FDD/CD-ROM Drive Removal ......................................................................6-11 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 6.5.17 Removing/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 A Maintenance Data
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List of Figures
1-1 1-2 1-3 1-4 3-1 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 4-9 4-10 4-11 4-12 4-13 4-14 6-1 6-2 6-3 6-4 6-5 6-6 6-7 6-8 6-9 6-1 6-1 6-1 6-13 6-14 6-15 6-16 x Extensa 67x Series Notebook Computers ................................................................1-1 External Features......................................................................................................1-4 External Ports............................................................................................................1-6 Installing PCMCIA Card Options ...............................................................................1-8 67x Operating Controls and Indicators......................................................................3-1 Extensa 670 System Architecture Diagram ..............................................................4-5 M1521 Pin Assignments ...........................................................................................4-6 M1523 Chip Simplified Block Diagram......................................................................4-8 M1523 Chip Pinouts ..................................................................................................4-9 M6377 Chip Simplified Block Diagram....................................................................4-11 M6377 Chip Pinouts ................................................................................................4-12 C&T65550 Chip Pinouts..........................................................................................4-14 C&T65550 Chip Simplified Block Diagram .............................................................4-15 TI1130 Chip PCI-to-PC card (16-bit) Pinouts..........................................................4-16 TI1130 Chip PCI-to-CardBus (32-bit) Pinouts.........................................................4-17 TI1130 Chip Simplified Block Diagram ...................................................................4-18 NS87336VJG Chip Pinouts .....................................................................................4-21 NS87336VJG Chip Simplified Block Diagram.........................................................4-22 ES1878 Chip Pinouts ..............................................................................................4-23 Removing/Installing Cables with Locking-Type Connectors .....................................6-3 Battery Removal/Replacement .................................................................................6-4 Installing/Removing PCMCIA Options ......................................................................6-5 Removing the HDD Bay Cover..................................................................................6-6 Removing/Replacing the Hard Disk Drive Module ....................................................6-6 Removing the Display Hinge Covers.........................................................................6-7 Removing/Replacing the Keyboard Assembly ..........................................................6-7 Memory Expansion Removal/Replacement .............................................................6-8 Removing/Replacing the Heat Sink Assembly.........................................................6-9 0 Removing/Replacing the CPU Chip .....................................................................6-10 1 Removing/Replacing a Module ............................................................................6-11 2 Unplugging the Display Cable ..............................................................................6-12 Removing the Display Hinge Screws ......................................................................6-12 Removing/Replacing the Top Cover .......................................................................6-13 Unplugging Cables on FIR/Audio Board .................................................................6-14 Removing/Replacing the FIR/Audio Board .............................................................6-14
6-17 6-18 6-19 6-20 6-21 6-22 6-23 6-24
Internal Assemblies, Removal/Replacement ..........................................................6-15 Removing/Replacing the Inside Frame Assembly .................................................6-16 Removing/Replacing the Battery Board ..................................................................6-17 Removing/Replacing the Charger Board Assembly................................................6-18 Detaching Motherboard from Inside Frame Assembly ...........................................6-19 Removing/Replacing the PCMCIA Module .............................................................6-20 Removing/Replacing the Touchpad Assembly .......................................................6-21 Display Unit Disassembly........................................................................................6-22
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List of Tables
1-1 1-2 1-3 1-4 1-5 3-1 3-2 4-1 5-1 5-2 5-3 Feature Comparison for 65x/67x Series Notebooks .................................................1-3 Operating System Environments ..............................................................................1-6 External Ports............................................................................................................1-7 Expansion Features Summary..................................................................................1-7 Specifications ..........................................................................................................1-10 Indicators...................................................................................................................3-2 Summary of Notebook Hot Key Sequences..............................................................3-2 Major Chips List ........................................................................................................4-4 Display Troubleshooting Guide .................................................................................5-2 Self Test Error Messages..........................................................................................5-3 Self Test Beep Messages .........................................................................................5-5
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Chapter General Description
1.1. Introduction
1
This chapter provides a general overview of the Extensa 67x Series, describes the standard and optional features, and identifies the major assemblies and subassemblies. This chapter also contains detailed functional and environmental specifications for the Extensa 67x Series Notebook Computers.
Figure 1-1
Extensa 67x Series Notebook Computers
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1.2. Notebook Model Number Definition
The following figure contains a summary of the available models in the 67x Series.
670 XX - X X X Code 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N P Q R S T U V W X Y Z Code 0 1 2 3 4 5 6 7 8 Code 0 1 2 3 4 5 6 Code D DX Country Reserved USA W Europe Latin AM Reserved Reserved Reserved Reserved Reserved Reserved Reserved Belgium Taiwan Denmark Finland France Germany Asia Italy Japan Korea Latin AM Dutch Norway Portugal Australia Reserved Spain Reserved UK Reserved Sweden Sws/Ger Sws/Fra Reserved CPU w/o MMX-150 MMX-150 MMX-166 MMX-166 MMX-150 MMX-150 MMX-166 MMX-166 Preload w/o Win95 Win95 WFW3.11 WFW3.11 NT4.0 NT4.0 LCD 12.1" DSTN 12.1" TFT KB US US US PWR cord US(110v) EUR(220v) US(110v) Manual English English Multi-language
BEL CHN US SWD FRA GER US ITA JPN US SPN US NOR PORT US SPN UK SWD GER FRA
EUR(220v) US(110v) EUR(220v) EUR(220v) EUR(220v) EUR(220v) US(110v) EUR(220v) US(110v) US(110v) US(110v) EUR(220v) EUR(220v) EUR(220v) AUS(250v)+UK(250v) EUR(220v) UK(250v) EUR(220v) EUR(220v) EUR(220v)
Multi-language English Multi-language Multi-language Multi-language Multi-language English Multi-language English English Multi-language Multi-language Multi-language Multi-language English Multi-language Multi-language Multi-language Multi-language Multi-language
Batt w/o NiMH Li-Ion NiMH Li-Ion NiMH Li-Ion NiMH Li-Ion HDD w/o 1.6GB 2.1GB 1.6GB 2.1GB 1.6GB 2.1GB
CD-ROM 10X 10X 10X 10X 10X 10X 10X 10X 10X
Memory 16MB 16MB 16MB 16MB 16MB 32MB 32MB 32MB 32MB
1-2
General Description
1.3. Product Overview
The Extensa 67x Series follows the 65x Series. The Extensa 67x notebook series is similar in construction and appearance, has similar operating controls and indicators and uses the same software. It uses a similar startup self test program (described in detail in Chapter 5 of this manual). There are differences at the board level which affect assembly/disassembly as described in Chapter 6 of this manual. There are also differences in Field-Replaceable Units (FRUs), particularly the Printed Circuit Boards, so separate FRU lists and logic diagram sets are provided in the appendices. Table 1-1 summarizes some of the major differences between the 67x Series and the 65x Series Notebook Computers. Table 1-1 Feature Comparison for 65x/67x Series Notebooks Feature CPU Standard Onboard Memory Maximum Expandable Memory HDD LCD Display Type Video Memory Infrared Port Internal Microphone Port Replicator Option 65x Series
133 MHz Pentium 16 MB 80 MB 1.3 GB or 1.6 GB DSTN or TFT 2 MB 4 Mb/s FIR Yes Yes
67x Series
150/166 MHz Pentium with MMX Technology 16 MB 80 MB 1.6 GB or 2.1 GB DSTN or TFT (new 12.1-inch DSTN and TFT LCDs) 2 MB 4 Mb/s FIR Yes Yes
The Extensa 67x Series Notebook Computers are large screen, high-performance, multimedia notebooks powered by the Intel® P55CLM Pentium® Processor Chip (150/166-MHz). Other major features of the 67x Series include:
· · · · · · · · ·
PCI Bus architecture 16 MB (Extended Data Out) memory onboard 2 MB video memory Fast video graphics accelerator 0-Volt Suspend, 5-Volt Suspend and Standby power saving modes No-reboot setup function STN or TFT color display (Model Dependent) 16-bit stereo audio Fast infrared communication
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· · · · · · · · · · · ·
Duracell NiMH (Nickel-Metal-Hydride) or optional Li-Ion (Lithium-Ion) battery pack 1.6/2.1 GB (or higher) capacity hard disk drive with Local Bus Internal touchpad pointing device Small, lightweight AC adapter Modular bay for expansion PS/2 port for connecting an external keyboard, numeric keypad, or mouse 9-pin serial port for connecting external devices such as a modem or mouse Simultaneous display with external CRT One Type III or two Type II/I Cardbus PC Card slots; lower slot accepts Zoomed Video port enabled PC cards Parallel port with EPP and ECP for connecting to a printer or the floppy disk drive module 8 MB, 16 MB and 32 MB EDO 64-bit type small outline dual inline memory module (soDIMM) upgrades Advanced PCI Card slot for installing a feature upgrade option
CD-ROM Drive or Floppy Disk Drive
Figure 1-2
External Features
1-4
General Description
1.3.1 Video Display Features
The Extensa 67x Series Notebooks contain large screen internal LCD displays and can simultaneously drive an external CRT (SimulSCANTM mode). On all Extensa models, the LCD screen brightness, contrast, video mode of operation, etc. are adjustable from the keyboard as described in Paragraph 1.2.2.3. 1.3.1.1 Internal LCD The Extensa 67x Series Notebooks contain one of the following LCDs (model dependent):
· ·
12.1-Inch DSTN display 12.1-Inch TFT display
1.3.1.2 External CRTs The Extensa 67x Series Notebooks are equipped with a 15-pin SVGA connector that can drive an external CRT (either alone or simultaneously with the internal LCD). When the notebook is set to the SimulSCAN mode, a minimum resolution of 800 x 600 x 256 colors is supported. When operating in the External CRT Mode, resolutions up to 1280 x 1024 x 256 colors are supported. 1.3.1.3 Display Hot Key Sequences The display mode of operation (LCD only, Simultaneous LCD and external CRT and external CRT only modes) is keyboard-selectable using the following hot key sequences.
· · · · ·
Fn-Up Arrow and Fn-Down Arrow - control LCD screen brightness (higher brightness setting uses more battery energy) Fn-Right Arrow - lightens the LCD screen contrast Fn-Left Arrow - darkens the LCD screen contrast Fn-F12 - alternates between display modes (LCD, External CRT or both) Fn-F11 - turns off the LCD backlight; pressing any key turns the LCD backlight on. In addition to the hot keys that control the notebook display functions, there are several other hot key functions that control other notebook functions such as turning the Touchpad on/off, etc. For these sequences, refer to Chapter 3.
Note:
1.3.2 Software Features
As a standard feature, the Extensa 67x notebooks are factory loaded with Windows 95, Windows NT or Windows for Workgroups software to allow the user to configure the notebook's operating system environment as summarized in Table 1-2.
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Table 1-2
Operating System Environments Description
Supports both desktop and mobile operation with Plug and Play capabilities and Advanced Power Management; multimedia options, and choice of wallpaper to customize different computer resources; variety of device drivers including C&T® 65550, ESS 1878 Sound Device Drivers, PC-Card Bus Socket Services and Card Services Device Drivers, TranXitTM Communication Utility for parallel/serial and FIR (IrDATM), 0V Suspend Utility PhDisk and SafeOFF Utility Supports both desktop and mobile operation with Advanced Power Management; multimedia options, and choice of wallpaper to customize different computer resources; variety of device drivers including C&T® 65550, ESS 1878 Sound Device Drivers, PC-Card Bus Socket Services and Card Services Device Drivers, TranXitTM Communication Utility for parallel/serial and FIR (IrDATM) This environment has some limitations in the Plug and Play area; includes utilities and various device drivers including C&T® 65550, ESS 1878 Sound Device Drivers, PC-Card Bus Socket Services and Card Services Device Drivers, and TranXitTM Serial Infrared (IrDATM) Device Drivers, etc.
Operating System
Windows 95
Windows NT
Windows/DOS 6.22
1.3.3 67x Series External Ports
The Extensa 67x Series notebooks have a variety of external ports (connectors) for the desktop environment as shown in Figure 1-3 and summarized in Table 1-3.
Figure 1-3
External Ports
1-6
General Description
Table 1-3
External Ports Description
15-Pin Female connector used to attach an external SVGA monitor to the notebook. 9-Pin Male connector used to attach an RS-232 serial device to the notebook. 25-Pin Female connector used to attach a bidirectional printer or an external floppy disk drive (requires special cable for use with floppy disk drive). 6-Pin Circular connectors used to attach external keyboard/mouse devices to the notebook. Power in connector used to attach the output of the AC adapter to the notebook. Fast Infrared Port (4 M/b) used for wireless communications between the notebook and an FIR-equipped device such as keyboard, another notebook, printer, etc. Provide for input of external sound source or audio output to drive external speakers 120-Pin PCI Bus that supports an external Port Replicator
Port Assignment
External VGA Port Serial Port Parallel/Floppy Port PS/2® Port DC-IN Connector Fast Infrared Port Audio In/Out, Mic In Jacks Expansion Bus
1.3.4 Standard Peripheral Devices
As standard features, the Extensa notebooks include a user-removable internal hard drive, a 3.5inch floppy disk drive, a CD-ROM drive and built-in point touchpad (mouse device). The FDD or CD-ROM drives is user removable.
1.3.5 Expansion Capabilities
The Extensa 67x Series Notebooks are designed with a variety of expansion features that permit substantial functionality and performance upgrades over the life of the product. The expansion capabilities built into the notebook are summarized in Table 1-4 and described in greater detail in the following paragraphs. Table 1-4 Expansion Features Summary Description
Reads from Audio CD, Photo CD or CD ROM Provides convenient storage on a removable disk format Main memory can be expanded from 16 MB to a maximum of 80 MB using soDIMM modules (8 MB, 16 MB or 32 MB configurations). Permits new versions of BIOS to be downloaded into Flash ROM without physically having to replace the ROMs Allows installation of any optional PCMCIA device such as speakerphone modems, Ethernet® cards, and full motion video cards. Permits attaching a variety of external devices to the notebook including external CRTs, keyboards, mouse devices, modems, printers, etc. Device that attaches to the Expansion Bus and provides the connectivity for the desktop environment. Removing and replacing the notebook from/to the desktop environment is greatly simplified using the Port Replicator option.
Expansion Feature
CD-ROM Drive 3.5-inch Diskette Drive Module Memory Expansion Features Flash ROM (hardware feature) PCMCIA Slots Desktop Connectivity Ports Port Replicator
1.3.6 PCMCIA Card Options
The Notebook contains an onboard PCMCIA Controller and two 64-pin sockets that can accept up to two credit-card size (14.5 mm) Type I or Type II PCMCIA option cards or one Type III card. The
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PCMCIA Card options install on the left side of the notebook (Figure 1-5) and are removed using the PCMCIA Release Buttons.
Figure 1-5
Installing PCMCIA Card Options
1-8
General Description
1.4. Standard Test Features
The Extensa 67x Series Notebook Computers use modular design and built-in test features to reduce the mean time to repair.
1.4.1 Power On Self Test
The Extensa line of notebook computers contain a BIOS-resident, Power On Self Test (POST) that automatically performs a test of memory and all major circuits each time the computer is powered up. In the event of a failure, the computer displays a descriptive error message and issues a series of coded beeps (in case the display subsystem is not functioning). If self test completes normally, the computer displays the amount of memory tested, loads the Operating System and Windows environment.
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1.5. Extensa 67x Series Specifications
General specifications for the Extensa 67x Series Notebooks are provided in Table 1-5. Table 1-5 Specifications Model 670
Pentium P54CSLM, 133 MHz; 3.1 Volt, 1.6 GB, 2.1 GB 12 ms or less 11+ Million I/O's per second 16 MB DRAM, 60-ns, EDO-type 80 MB 256 KB Media Bay Modular 1.44 MB 3.5-inch disk 12.5 mm Choice of 720 KB/1.2 MB or 1.44 MB Media Bay 12.1-inch DSTN SVGA or 12.1-inch TFT SVGA Windows 95, Windows NT, or Windows for Workgroups 3.11 84/85-Key, PS/2 and AT-Compatible Embedded 3 mm All major International Language Configurations 19 mm Touchpad built-in to the base of the keyboard (select buttons just below Touchpad) 1-1 SVGA 2 MByte 32 bits 640x480 pixels bit-mapped at 16.77 million colors; 600x800 at 65K colors 80 25 Function hot key brightness and contrast control and SimulSCAN control 15-Pin, female, D-type connector 640 x 480 with 16.7 million colors on CRT 800 x 600 with 16.7 million colors on CRT 1024 x 768 with up to 64K colors on CRT 1280 x 1024 with 256 colors on CRT (interlaced)
Characteristic
CPU Internal Hard Disk Drive Disk Storage Capacity Average access time Throughput DRAM Memory Size Maximum Expansion Size Flash ROM FDD Disk Storage Capacity: Disk Size Drive Height Mode CD-ROM Drive LCD Display Software Internal Keyboard Numeric Keypad Key Travel Localization Features Key Spacing Built-in Mouse Device Video Subsystem LCD Aspect Ratio Emulations Video Memory Size Video Bus LCD Resolution LCD Characters/Line LCD Lines/Screen LCD Brightness Control External CRT Monitor Interface Connector Type Monitors Supported
1-10
General Description
Table 1-5
Specifications Model 670
9-Pin, male, sub-D-type connector EIA RS-232-D Asynchronous transmission 110, 200, 300, 600, 1200, 2400, 4800, 9600, 19200 Odd, even, mark, space Data check: odd, even READY/BUSY, DC1/DC3 7- or 8-bit Yes COM1(IRQ4, 3F8h) COM2(IRQ3, 2F8h) COM3(IRQ4, 3E8h) COM4(IRQ4, 2E8h) Disable EPP/ECP Bidirectional 25-Pin, DB-25 Connector Yes, Hot Pluggable & Auto-Detection if BIOS Setup is set to 1.44 MB LPT 1 (IRQ5, 278h) LPT 2 (IRQ7, 378h) Disable Yes 4M bit/sec 100cm IrDA 128-pin
Characteristic
RS-232-D Serial Port: Method Type Bits per second Parity Transmit/Receive Line control Data word 16550 UART Support Selectable Serial Port (BIOS Setup)
Parallel Port Connector Type FDD Support Selectable Parallel Port (BIOS Setup) Fast I/R Port Transfer Data Rate Transfer Distance Standard Expansion Bus Port
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1.6. Regulatory Agency Approvals
All Extensa 67x Series products meet the following regulatory agency standards:
· · · · · · · ·
Underwriter's Lab (UL) Standard 1950 (safety) Canadian Standards Association (CSA) Standard 950 or CUL (safety) FCC CFR 47, Part 15, Subpart B, FCC Level B (Emissions) Canadian Department of Communications (DOC) ICES, Class B (Emissions) VDE- EN60950 (Safety) EN 50082-1 (Immunity: ESD, RFI, EFT, and Surge) EN 50081-1 (Emissions: RFI, EMI, Harmonics, and Flicker) Approval Marks: UL, CUL, VDE, FCC, ICES, and CE
1-12
General Description
Chapter Installation
2.1. Introduction
2
This chapter contains unpacking and preparation for use instructions for the Extensa 67x Series Notebook Computers. This includes:
· · · · · · · · · ·
Removing the computer and all manuals, options and accessories from the shipping container(s) Installing Internal Notebook Options Installing External Notebook Options Installing Battery Packs Installing Desktop Devices Installing the AC Adapter Checking Out the System Configuring the System Making Backups of System Software Loading Application Software
2.2. Unpacking Instructions
Unpack the computer using the following instructions: 1. 2. 3. 4. Carefully cut the tape that seals the top flap of the shipping carton. Remove the computer and the accessories Carton from the main shipping carton. Remove all protective coverings from the computer. Open the accessory box; remove the contents. Save the two shipping containers and packaging for later reuse.
Note:
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2.3. Installing Internal Notebook Options
If you have no internal options to install at this time, skip to Paragraph 2.4. Otherwise, continue with Paragraph 2.3.1.
2.3.1 Installing Main Memory Expansion (Optional)
Main memory on the 67x Series Notebooks can be expanded using EDO Small Outline Dual Inline Memory Modules (EDO soDIMMs). These modules currently are available in 8 MB, 16 MB or 32 MB sizes and install in expansion memory slots on the Main Board accessed through the Memory Expansion Door on the bottom of the notebook. The installation process consists of the following steps: Caution: The EDO soDIMM module option 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.
Figure 2-1 1.
Memory Expansion Removal/Replacement
Ensure that the notebook is powered off and the AC adapter disconnected from the AC outlet. Also, ensure that the battery is out of the unit. Disconnect any peripheral device interface cables from the external interface connectors and remove any installed PCMCIA options. Turn the notebook over and locate the Expansion Memory Access Cover on the bottom of the notebook. Remove the screw holding the Expansion Memory Access Cover and remove the cover. Remove the EDO soDIMM module from its shipping container. Refer to Figure 2-1. To install an soDIMM module, first align the connector edge of the memory module with the key in the connector. Insert the edge of the memory module board into the connector using a rocking motion to fully insert the module. Push downward on each side of the memory module until it snaps in place.
2.
3.
4. 5. 6.
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Installation
7. 8. 9.
If installing a second soDIMM, repeat Step 6. Reinstall the Expansion Memory Access Cover using the screw removed in Step 4. Replace the Keyboard Assembly and any components previously removed. Replace the AC adapter.
10. Power up the notebook and reboot. If all of the installed memory is not recognized, try reseating the soDIMM module(s) and rebooting. Note: After installing expansion memory in your notebook, you must run the PHDISK utility in order for the Save-To-Disk or 0V Suspend functions to operate correctly.
2.3.2 Setting up the Software
After installing expansion memory, perform the following procedure: 1. Run PHDISK. In Windows 95 1. 2. 3. 4. From the Taskbar, select Start, then Shut Down. Select the "Restart the Computer in MS-DOS mode" option. Click on Yes. Type PHDISK/C/F at the DOS prompt.
·
·
In Windows for Workgroups and Windows NT 1. 2. Exit all applications and exit Windows to DOS. At the DOS command prompt, type PHDISK/C/F. This will create a file which can be used to save the contents of your memory system when you perform a 0V Suspend operation
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2.4. Installing External Options
2.4.1 Installing PCMCIA Options
The Notebook has two connector slots for PCMCIA option cards. These two slots can be used to install one Type III or two Type I/II credit card size PCMCIA option cards. You can install a PCMCIA (PC card) without turning the computer off. Use the following procedure to install a PCMCIA option: 1. 2. Review the installation instructions supplied with the PCMCIA option card(s). Hold the card at the end opposite the connector pins with the label side up. Insert the card into an unused slot on the left side of the Notebook. If the option requires external cabling (e.g. Modem option), connect external cabling at this time. After installation of a PCMCIA option card, Windows 95 displays the New Hardware Found dialog box to help you configure the new device. To remove a card, click on the PCMCIA icon; then, press the appropriate PC Card Release Button (or press both buttons for a Type III device) and remove the option.
3.
Note:
Figure 2-2
Installing PCMCIA Option Cards
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Installation
2.5. Installing External Notebook Options
2.5.1 Installing Ext. Keyboard/Mouse/Numeric Keypad
A PS/2 compatible keyboard, mouse or an optional PS/2-compatible numeric keypad may be installed on the notebook via the mouse connector on the left rear port as shown in Figure 2-3.
Figure 2-3
PS/2 Port Pinouts
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2.5.2 Installing an External Parallel Printer or Floppy Drive
The Notebook is equipped with an external, bidirectional, ECC/EPP compatible, 25-pin parallel printer port. The connector pinouts and connector location are shown in Figure 2-4. When used with a special cable, an external floppy disk drive may also be attached to the notebook via the parallel port. When a floppy disk drive is connected to the parallel port, the floppy disk drive in the Modular Bay is disabled, if present.
Figure 2-4
Parallel Port Pinouts
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Installation
2.5.3 Installing an External Serial Port Device
The notebook contains an external RS-232 serial port with a 9-pin, male DB-9 connector as shown in Figure 2-5 (25-pin cables require the use of an adapter for use with the 9-pin port). The serial ports are used to interconnect such devices as:
· · · ·
External Modem Serial Mouse Serial Printer Any device that uses an RS-232 interface
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 external device. If you are uncertain of what type connector the external device has, refer to the technical manual for the external device.
Figure 2-5
Serial Port Pinouts
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2.5.4 Installing an External VGA Monitor
The notebook contains an external CRT port that can drive one of a variety of monitor resolutions and colors as summarized in Table 1-9. The associated connector location and pinouts are shown in Figure 2-6.
Figure 2-6
External VGA Pinouts
Use the following procedure to install an external monitor: 1. 2. Turn off power to both the notebook and monitor. Connect the 15-pin external VGA cable from the monitor to the VGA connector on the notebook computer (refer to Figure 2-6). Power up the notebook computer first; then turn on power to the monitor. Setup the notebook display mode for LCD only, simultaneous LCD and CRT or CRT only using the BIOS setup utility or hotkey (see Paragraph 1.2.2.3). Install the correct driver if required (refer to the Monitor Installation Instructions supplied by the CRT vendor).
3. 4.
5.
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Installation
2.5.5 Installing the Security Lock Option
Use the following procedure to install the optional Kensington® security lock. 1. 2. Unpack the Kensington Lock Kit. Secure the loop end of the lock to a permanent fixture located such that the notebook can be installed in a desired location. Insert the lock into the slot on the left side of the computer. Rotate the key to its locked position and remove the key.
3. 4.
This completes the options installation subsection.
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2.6. Battery Pack Installation
First turn off the computer and disconnect the AC adapter if attached to the computer; then follow these steps: 1. 2. Unlatch the battery compartment door (right front corner of the unit) as shown in Figure 2-7. Slide the battery compartment door out slightly and then swing the door outward as shown in Figure 2-7. If changing batteries, grasp the loop attached to the battery and pull the battery out of the compartment. Look for label "THIS SIDE UP" and insert the battery with label up until it snaps in place; then close the battery compartment door.
3.
4.
Figure 2-7
Battery Pack Installation
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Installation
2.7. Installing the AC Power Adapter
Use the following procedures to connect the AC adapter to the system: 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 supplied with the notebook to the DC IN power receptacle on the left rear of the notebook as shown in Figure 2-8 (a). Connect the female side of the AC power cord to the AC adapter (b) and connect the male end to a grounded AC outlet (c).
2.
Figure 2-8
Installing the AC Adapter
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2.8. 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, press the power button on the left side of the notebook which initiates self test. During self test execution, the computer checks the operation of all key hardware including memory and CPU (and displays copyright and version number data during test execution). Upon successful conclusion of self test, the computer automatically loads its operating system and windows environment. If self test fails to complete and an error message is displayed, try powering down the computer for a couple of minutes and turning power back on to repeat self test. If the error message persists, refer to Chapter 5 for troubleshooting information.
2.9. Making Backups of System Software
Immediately after completion of the installation procedures, make backups of all software. In the event of a disk problem, restore the system using the System Files Recovery disk and the set of backup disks. Note: Refer to the Extensa Series Notebook Computer User's Guide for additional information.
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Installation
&KDSWHU
Operating Instructions
3.1. Introduction
This chapter contains a summary of notebook operating procedures useful for maintenance operations. For additional detail, refer to the Extensa Series Notebook Computer User's Guide supplied with the notebook.
3.2. Controls/Indicators
The operating controls and indicators for the 67x Series Notebooks are identical (refer to Figure 31). A brief description of the controls and indicators is provided in the following paragraphs.
Disk Media LED Battery Charging LED
Caps Lock LED
Num Lock LED
Power/Battery Low Indicator Standby Mode Indicator Power Button
Figure 3-1
67x Operating Controls and Indicators
3.2.1 Power On/Off Switch
The notebook contains an alternate action power button located on the right side of the notebook as shown in Figure 3-1. On the first button depression, power is turned on to the notebook. On the second depression, power is turned off.
3.2.2 Notebook LEDs
The notebook contains four front indicator LEDs and two right side LEDs as shown in Figure 3-1 and described in Table 3-1.
Table 3-1
Indicators
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Indicator Light
Power/Battery-low
Description
Lights when the system is on and there is power to the system. Flashes when the battery power is low. Connect a powered AC adapter to the computer as soon as possible.
Standby Mode
Lights when the computer is in Standby mode. Flashes when the computer is in 5V Suspend mode. The computer enters Standby mode if the Standby hot key (Fn+F4) is pressed or the STANDBY TIMEOUT parameter in Setup is enabled and expires. The computer enters 5V Suspend mode when you press the 5V Suspend hot key (Fn+F3) or the 5 VOLT SUSPEND TIMEOUT parameter in Setup is enabled and expires, or the display is closed.
Disk Media Battery Charging
Lights when the computer writes to or reads from the hard disk drive, or reads from the CD-ROM drive. Lights when a powered AC adapter connected to the computer is charging the battery. Flashes when there is a problem with the battery or the battery is not recognized by the smart charger. Turns off when there is no battery or the battery is fully charged.
Caps Lock Num Lock
Lights when the caps lock function is toggled ON using the Caps Lock key. Lights when the embedded numeric keypad is toggled ON using the Num Lock hot key (Fn+F7)
3.2.2.1 Hot Key Sequences Table 3-2 contains a summary of hot key sequences useful when performing maintenance operations.
Table 3-2
Summary of Notebook Hot Key Sequences
Function Key Sequence
Fn-Up Arrow Fn-Down Arrow Fn-Right Arrow Fn-Left Arrow Fn-F12 or Ctrl-Alt-F12 Fn-F2 or Ctrl-Alt-F2 Press Power Button Fn-F3 or Ctrl-Alt-F3 Press any key Fn-F4 Press any key Fn-End or Ctrl-Alt-S F2 Fn-F7 Fn-F11 Press any key Ctrl-Pause Press any key Shift-PrtSc
Increase LCD screen brightness Decrease LCD screen brightness Lighten LCD screen contrast Darken the LCD screen contrast Alternate between display modes (LCD, Ext.l CRT or both) Enter 0V Suspend Mode Exit 0V Suspend Mode Enter 5V Suspend Mode Exit 5V Suspend Mode Enter Standby Mode Resume from Standby Mode Toggle speaker output on/off Enter BIOS Setup (during POST) Numeric Lock Turn off the LCD backlight Turn on the LCD backlight Stop a command or application Resume a command or application Send the contents of the screen to the printer
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Operating Instructions
Table 3-2
Summary of Notebook Hot Key Sequences
Function Key Sequence
Ctrl-P Fn-T Fn-F6 Fn-F1 or Ctrl-Alt-F1 Ctrl-Alt-Del Windows logo key Windows logo key-Tab Windows logo key-E Windows logo key-F Windows logo key-M Windows logo key-R Application key
Sets the notebook to echo keystrokes to the printer; prints a line when you press Enter; continues until you press Ctrl-P Enable/disable the internal keypad Toggle Scroll Lock function on/off Bring up the setup screen anytime Warm boot Start Activate next taskbar button Explore the computer Find files Minimize all Display run dialog box Display the application's context menu
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Chapter Theory of Operation
4.1. Introduction
4
This chapter contains a general block diagram theory of operation description of the Extensa 67x Series Notebook Computers. Note: Various internal components may change on future models and busses/bus speeds are subject to change.
4.2. Notebook Functional Overview
The Extensa 67x Series Notebook consist of:
· · · · · · · · · ·
System Processor - implemented on the Motherboard Assembly Memory Subsystem - implemented on the Motherboard Assembly Processor/Memory/I/O Control - implemented on the Motherboard Assembly Keyboard Subsystem - implemented on the Motherboard and the Keyboard Assemblies Video Subsystem - implemented on the Motherboard and on the LCD Display Assembly Sound Subsystem - implemented on the Motherboard Assembly. Touchpad Mouse Subsystem- implemented on the Touchpad assembly and on the Motherboard Assembly Hard Disk Drive Subsystem - implemented on the Motherboard Assembly and the Hard Disk Drive Assembly Floppy Disk Drive Subsystem - implemented on the Motherboard and Floppy Disk Drive Assembly Power Subsystem - implemented on the Charger Board, Inverter Board, battery packs, and AC adapter
4.2.1 System Processor
The System Processor function for the notebook is implemented on the Motherboard in the form of an Intel Pentium P55-C Superscalar 586 Processor Chip. The processor operates in conjunction with RAM and ROM Memory and other control logic to process software instructions (BIOS, DOS, Windows, and applications). The processor communicates with the hard disk drive and the memory components using high speed busses. The Processor also interacts with other hardware logic to provide the power savings features for the notebook. These features include controlling CPU clock speeds, reducing clock speeds whenever possible (e.g. when performing floppy disk drive accesses), powering down unused devices, etc.
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4.2.2 Memory Subsystem
The memory subsystem comprises the following components:
· · ·
Main memory L2 Secondary Memory (cache) Flash ROM
The Extensa Series uses fast Extended Data Out (EDO) DRAM for main and video memory and high-speed synchronous, pipelined burst SRAM for L2 cache memory. Main BIOS and Video BIOS are stored in Flash ROM. 4.2.2.1 Main Memory The 67x Series Notebooks come standard with 16 MB main memory, expandable to 80 MB. Memory expansion accommodations are provided via standard soDIMM connectors on the bottom of the Motherboard Assembly. 4.2.2.2 Flash ROM All versions of the Extensa notebook family use a "Flash" ROM that contains both the main system BIOS and the VGA BIOS. The Flash ROM execution is 8 bits wide. However, better performance can be attained by enabling the Shadow ROM in the CMOS setup routine. When the Shadow ROM is enabled, BIOS is copied into 32-bit high speed memory system.
4.2.3 Video Subsystem
The video subsystem is implemented on the Motherboard Assemblies. The notebook contains a built-in 12.1 inch LCD and features simultaneous LCD and external VGA display. The video subsystem includes a 2 MB DRAM memory, 32-bit DRAM bus, and separate display and memory clocks. An additional frame buffer/accelerator DRAM increases the available memory band width for CPU accesses. The video section also uses additional levels of write FIFOs, a read cache, page mode DRAM.
4.2.4 Sound Subsystem
The Extensa Series Notebook is equipped with a sound chip set that is Sound BlasterTM and Sound Blaster Pro compatible. Internal stereo speakers provide the Notebook with sound generation capabilities. A set of 3.5 mm connectors allow for external microphone and line inputs and headphone/speaker outputs. The sound subsystem also includes a variety of sound utilities that combine to provide additional multi-media functions:
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Theory of Operation
4.2.5 Keyboard Subsystem
The keyboard subsystem, implemented on the Keyboard Assembly and the Motherboard Assemblies Board, consists of the following major sections:
· · ·
Keyboard Assembly Keyboard Scanner Status LED Interface
4.2.6 Hard Disk Drive Subsystem
The Hard Disk Drive Subsystem, implemented on the Motherboard Board and on the associated hard disk drive module(s), provides disk storage for all system software and user files. The notebook is equipped with an 1.6 GB or larger hard disk drive. The hard disk drive also features built-in power conservation features configured from the standard CMOS Setup Routine. An Automatic Power Down mode can be selected which powers down the drive motor during periods of inactivity. An additional level of power conservation may also be selected which powers down the motor plus all control circuits. The hard disk drives are factory formatted as a single drive (Drive C:) and are preloaded with installation versions of Windows 95, Windows NT or Windows for Workgroups. 4.2.6.1 Hard Disk Drive Power Management Both the internal hard disk drive and the hard disk drive installed in the media bay implement power savings features. From the CMOS setup routine, an automatic power down mode can be selected which enables the drive to turn off its motor after a specified period of inactivity. Additional Sleep modes can direct additional power savings during inactive periods by powering down the control circuitry.
4.2.7 Floppy Disk Drive Subsystem
The Extensa 67x Series notebooks contain provisions for supporting a Floppy Disk Drive installed internally or externally connected to the parallel port. The Floppy Disk Drive Subsystem consists of a Floppy Controller and the Floppy Disk Drive located either in the media bay or external to the notebook (not both). The 3.5-inch floppy disk drive can read/write standard 3.5-inch disks (either1.44 MB or 2 MB capacity). The drive can also read a 720 KB disk (for interchange of data with other computers). The data transfer rate for the floppy disk drive is 500 Kbits per second for high-density disks and 250 Kbits per second for double-density disks.
4.2.8 Power Subsystem
The notebook is equipped with a software/hardware monitored/controlled Power Subsystem that minimizes battery usage for prolonged battery operation and automatically recharges the batteries when the notebook is used with an AC adapter.
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4.2.8.1 AC Power Adapter The computer is equipped with a universal AC power adapter that converts AC voltage into DC voltage (approx. 46 Watts of power) used to operate the notebook and charge the batteries. The specifications for the AC adapter include:
· · ·
Input Voltage: 100 to 250 VAC Input Current: Approximately 1.5 Amps Input Frequency: 50 to 60 Hz
4.3. Detailed Circuit Theory
The remainder of this chapter provides chip-level circuit description for the Extensa Series Notebooks.
4.3.1 Major Components
Table 4-1 shows a listing the of the major components used in the Extensa Series Notebooks. Table 4-1 Component
M1521 M1523 M6377 65550 TI1130 NS87336VJG ES1878 T62.045.C.00 DAC-07B008 DC-R05 M38802 Acer Acer Acer C&T (Chips & Technology) Texas Instruments NS (National Semiconductor) ESS Technology Ambit Delta Delta Phoenix
Major Chips List Vendor Description
PCI, cache and memory controller (Host-PCI Bridge) System controller chip (PCI-ISA Bridge) Power management controller Video controller PCMCIA controller Super I/O controller Audio controller Charger board LCD inverter LCD ID board Keyboard encoder and decoder
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Theory of Operation
4.3.2 System Architecture
Figure 4-1 shows the Extensa system architecture. The remainder of this chapter provides a detailed description of the major chips used in the Extensa Notebooks.
586 CPU
CPU Bus
SRAM
M1521
BGA
DRAM UMA G raphic controller
PCI Bus
IDE Master
M1523
USB connector
CD
HDD
ISA Bus
Aladdin III System Block Diagram
Figure 4-1
Extensa 670 System Architecture Diagram
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4.3.3 ALI M1521 (PCI, Cache and Memory Controller)
The ALADDIN-III consists of tow chips, ALI M1521 and M1523 to give a 586 class system the complete solution with the most up-to-date feature and architecture for the new multimedia/ multithreading operating system. It utilizes the BGA package to improve the AC characterization, resolves system bottleneck and make the system manufacturing easier. The ALADDIN-III gives a highly-integrated system solution and a most up-to-date system architecture including the UMA, ECC, PBSRAM, SDRAM/BEDO and multi-bus with highly efficient, deep FIFO between the buses, such as the HOST/PCI/ISA dedicated IDE bus. The M1521 provides a complete integrated solution for the system controller and data path components in a Pentium-based system. It provides a 64-bit CPU bus interface, 32-bit PCI bus interface, 64/72 DRAM data bus with ECC or parity, secondary cache interface including pipeline burst SRAM or asynchronous SRAM, PCI master to DRAM interface, four PCI master arbiters and a UMA arbiter. The M1521 bus interfaces are designed to interface with 3V and 5V buses. The chip pinouts are provided in Figure 4-2.
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Theory of Operation
Figure 4-2
M1521 Pin Assignments
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4.3.4 ALI M1523 (PCI, Cache and Memory Controller)
The M1523 is a bridge between PCI and ISA bus, providing full PCI and ISA compatible functions. The M1523 has Integrated System Peripherals (ISP) on-chip and provides advanced features in the DMA controller. This chip contains the keyboard controller, real-time clock and IDE master controller. This chip also supports the Advanced Programmable Interrupt controller (APIC) interface. One eight-byte bidirectional line buffer is provided for ISA/DMA master memory read/writes. One 32-bit wide posted-write buffer is provided for PCI memory write cycles to the ISA bus. It also supports a PCI to ISA IRQ routing table and level-to-edge trigger transfer. The chip has two extra IRQ lines and one programmable chip select for motherboard Plug and Play functions. The interrupt lines can be routed to any of the available ISA interrupts. The on-chip IDE controller supports two IDE connectors for up to four IDE devices providing an interface for IDE hard disk and CD-ROMs. The ATA bus pins are dedicated to improve the performance of IDE master. The M1523 supports the Super Green feature for Intel and Intel compatible CPUs. It implements programmable hardware events, software event and external switches (for suspend/turbo/ring-in). The M1523 provides CPU clock control (STPCLKJ). The STPCLKJ can be active (low) or inactive (high) in turn by throttling control. A simplified block diagram of the M1523 chip is shown in Figure 4-3 and the associated pinouts are provided in Figure 4-4.
M1523 Block Diagram
PWG CPURST RSTDRV OSC14M PCICLK CBEJ[3:0] AD[31:0] FRAMEJ TRDYJ IRDYJ STOPJ DEVSELJ SERRJ PAR PHOLDJ PHLDAJ FERRJ IRQ[15:14] IRQ[11:3] INTAJ/M1II NTBJ/S0 INTCJ/S1 INTDJ/S2 IGNNEJ INTR NMI A20MJ USBCLK USBP[11:10] IDRQ[0:1] IDAKJ[0:1] IDERDY IDEIORJ IDEIOWJ IDESCS3J IDESCS1J IDEPCS3J IDEPCS1J IDE_A[2:0] IDE_D[15:0]
Clock & Reset PCI BUS Interface UNIT PCI Arbiter Interface ISA Interrupt UNIT PCI Interrupt UNIT CPU Interface USB Interface (reserved) PCI IDE Master Interface
DATA Buffer Control Address Buffer
ISA BUS Interface UNIT
Decoder
PMU or APIC Interface Timer UNIT MISC. Logic REAL Time Clock PS2/AT Keyboard Controller DMA Refresh UNIT
SD[15:8] XD[7:0] SA[19:0] SBHEJ LA[23:17] IO16J M16J MEMRJ MEMWJ AEN IOCHRDYJ NOWSJ IOCHKJ SYSCLK BALE IORJ IOWJ SMEMRJ/LMEGJ SMEMWJ/RTCAS EXTSW STPCLKJ SPKR SIRQI XDIR SPLED ROMCSJ SIRQII RTC32KI RTC32KII KBINH/IRQ1 KBCLK/KBCSJ KBDATA MSCLK IRQ12/MDATA DREQ[7:5] DREQ[3:0] DACKJ[7:5] DACK2J/3J TC REFSHJ
Figure 4-3
M1523 Chip Simplified Block Diagram
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Theory of Operation
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 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
Vss BALE SA2 SA1 SA0 SBHEJ M16J LA23 IO16J LA22 IRQ10 LA21 IRQ11 VDD/BAT RTC32KII RTC32KI PWG LA20 LA19 IRQ15 LA18 IRQ14 LA17 MEMRJ DREQ0 Vss MEMWJ DACK5J SD8 DREQ5 SD9 DACK6J SD10 DREQ6 SD11 DACK7J SD12 DREQ7 SD13 VDD SD14 SD15 OSC14M SIRQI SIRQII USBCLK DACK0J DACK1J CPURST SMIJ STPCLKJ Vss
ALi
M1523
VDD IRQ12 MSCLK KBDATA KBCLK/KBCSJ KBINH/IRQ1 IDESCS3J IDESCS1J IDEPCS3J IDEPCS1J IDE_A0 IDE_A2 IDE_A1 IDAKJ1 IDAKJ0 IDERDY IDEIORJ IDEIOW J IDRQ1 IDRQ0 IDE_D0 IDE_D15 Vss IDE_D1 IDE_D14 IDE_D2 IDE_D13 IDE_D3 IDE_D12 IDE_D4 IDE_D11 IDE_D5 IDE_D10 IDE_D6 IDE_D9 IDE_D7 VDD IDE_D8 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 CBEJ0 AD8 AD9 AD10 AD11 VDD
156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105
Figure 4-4
M1523 Chip Pinouts
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4.3.5 ALI M6377 (Powre Management Unit)
·
Three operation states · ON state · DOZE state · SLEEP state
· · · ·
Programmable DOZE and SLEEP timers Programmable EL timer for backlight control Three output pins depending on operation state, each pin is programmable and power configurable Provide system activity monitoring, including: · video · hard disk · floppy disk · serial port · keyboard · parallel port · two programmable I/O groups activity monitor, each group contains 16/8 I/O addresses · one predefined I/O group activity monitor
·
Multiple external wake up events from DOZE and SLEEP states: · External push button · RTC alarm
· ·
Two levels battery warning monitor AC power monitoring to disable PMU function
A simplified block diagram of the M6377 Power Management Unit is provided in Figure 4-5. The chip pinouts are provided in Figure 4-6.
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Theory of Operation
WAKEUP EVENT HANDLER STATE CONTROLLER
ACTIVITY MONITOR
EL TIMER
Timebase
SMI HANDLER
PROGRAMABLE APM TIMER x 2 BATTERY MONITOR
BUS INTERF ACE
OTHER
GPIO
Figure 4-5
M6377 Chip Simplified Block Diagram
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Figure 4-6
M6377 Chip Pinouts
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Theory of Operation
4.3.6 C&T 65550 High Performance Flat Panel / CRT VGA Controller
The C&T 65550 of high performance multimedia flat panel / CRT GUI accelerators extend CHIPS' offering of high-performance flat panel controllers for full-featured notebooks and sub-notebooks. The C&