Acer Travelmate 7300 Service Guide

							TM7300 Series
Notebook Computer
Service GuidePART NO.:  49.42A01.001
DOC. NO.:   SG238-9712APRINTED IN TAIWAN 
						

							iiCopyright
Copyright  ã  1998 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 to make
changes from time to time in the contents hereof without obligation of Acer Incorporated to notify
any person of such revision or changes.
Intel is a registered trademark and Pentium is a trademark of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders. 
						

							iiiAbout this Manual
Purpose
This service guide aims to furnish technical information to the service engineers and advanced
users when upgrading, configuring, or repairing the TM7300 series notebook computer.
Manual Structure
This service guide contains technical information about the TM7300 series notebook computer.  It
consists of three chapters and five appendices.
Chapter  1System Introduction
This chapter describes the system features and major components.  It contains the TM7300
series notebook computer board layout, block diagrams, cache and memory configurations,
power management and mechanical specifications.
Chapter  2Major Chips Description
This chapter describes the features and functions of the major chipsets used in the system
board.  It also includes chipset block diagrams, pin diagrams, and pin descriptions.
Chapter  3BIOS Setup Utility
This chapter describes the parameters in the BIOS Utility screens.
Chapter  4Disassembly and Unit Replacement
This chapter describes how to disassemble the TM7300 series notebook computer to make
replacements or upgrades.
Appendix  AModel Number Definition
This appendix shows the different configuration options for the TM7300 series notebook
computer.
Appendix  BExploded View Diagram
This appendix illustrates the system board and CPU silk screens.
Appendix  CSpare Parts List
This appendix lists the spare parts for the TM7300 series notebook computer with their part
numbers and other information. 
						

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

							vTable of Contents
Chapter  1System Introduction
1.1Features..............................................................................................................1-1
1.1.2FlashStart Automatic Power-On............................................................1-2
1.2Ports....................................................................................................................1-3
1.2.1Rear Panel Ports...................................................................................1-3
1.2.2Left Panel Ports....................................................................................1-4
1.2.3Indicator Lights......................................................................................1-5
1.2.4Hot Keys...............................................................................................1-6
1.2.5Automatic Tilt........................................................................................1-8
1.3System Specification Overview............................................................................1-9
1.4Board Layout......................................................................................................1-11
1.4.1System Board (Top Side).....................................................................1-12
1.4.2System Board (Bottom Side)................................................................1-13
1.4.3Media Board (Top Side).......................................................................1-14
1.4.4Media Board (Bottom Side)..................................................................1-15
1.5Jumpers and Connectors....................................................................................1-16
1.5.1Mainboard............................................................................................1-16
1.5.2Media Board.........................................................................................1-18
1.6System Configurations and Specifications..........................................................1-19
1.6.1System Memory Map...........................................................................1-19
1.6.2Interrupt Channel Map..........................................................................1-19
1.6.3I/O Address Map..................................................................................1-19
1.6.4DMA Channel Map...............................................................................1-20
1.6.5GPIO Port Definition Map.....................................................................1-21
1.6.6PCI Devices Assignment......................................................................1-25
1.6.7Power Management.............................................................................1-25
1.6.8CPU Module.........................................................................................1-31
1.6.9BIOS....................................................................................................1-32
1.6.10System Memory...................................................................................1-32
1.6.11Video Memory......................................................................................1-33
1.6.12Video Display Modes............................................................................1-34
1.6.13Audio...................................................................................................1-35 
						

							vi1.6.14PCMCIA...............................................................................................1-35
1.6.15Parallel Port.........................................................................................1-36
1.6.16Serial Port............................................................................................1-36
1.6.17Touchpad.............................................................................................1-36
1.6.18SIR/FIR................................................................................................1-37
1.6.19LCD.....................................................................................................1-37
1.6.20CD-ROM..............................................................................................1-38
1.6.21Diskette Drive......................................................................................1-38
1.6.22Hard Disk Drive....................................................................................1-39
1.6.23Keyboard.............................................................................................1-39
1.6.24Battery.................................................................................................1-40
1.6.25DC-DC Converter.................................................................................1-40
1.6.26DC-AC Inverter....................................................................................1-41
1.6.27AC Adapter..........................................................................................1-41
1.7System Block Diagrams......................................................................................1-42
1.7.1System Functional Block Diagram........................................................1-42
1.7.2System Bus Block Diagram..................................................................1-43
1.8Environmental Requirements..............................................................................1-44
1.9Mechanical Specifications...................................................................................1-45
Chapter  2Major Chips Description
2.1Major Component List...........................................................................................2-1
2.2Intel PIIX4.............................................................................................................2-2
2.2.1Features.................................................................................................2-4
2.2.2Architecture Block Diagram....................................................................2-6
2.2.3Block Diagram.......................................................................................2-7
2.2.4Pin Descriptions.....................................................................................2-8
2.3NM2160..............................................................................................................2-28
2.3.1Features...............................................................................................2-28
2.3.2Pin Diagram.........................................................................................2-30
2.3.3Pin Descriptions...................................................................................2-31
2.4NMA1.................................................................................................................2-38
2.4.1Features...............................................................................................2-38
2.4.2Block Diagram.....................................................................................2-39 
						

							vii2.4.3Pin Diagram.........................................................................................2-40
2.4.4Pin Descriptions...................................................................................2-41
2.5Philips 87C552 System Management Controller.................................................2-43
2.5.1Features...............................................................................................2-43
2.5.2Block Diagram.....................................................................................2-44
2.5.3Pin Diagram.........................................................................................2-45
2.5.4Pin Descriptions...................................................................................2-46
2.6NS87338VJG Super I/O Controller......................................................................2-48
2.6.1Features...............................................................................................2-48
2.6.2Block Diagram.....................................................................................2-50
2.6.3Pin Diagram.........................................................................................2-51
2.6.4Pin Description.....................................................................................2-52
2.7CL-PD6832: PCI-to-CardBus Host Adapter.........................................................2-59
2.7.1Features...............................................................................................2-59
2.7.2Pin Diagram.........................................................................................2-60
2.7.3Pin Descriptions...................................................................................2-60
2.8Ambit T62.036.C DC-DC Converter....................................................................2-72
2.8.1Pin Diagram.........................................................................................2-72
2.8.2Pin Descriptions...................................................................................2-72
2.9Ambit DC-AC Inverter.........................................................................................2-74
2.9.1T62.055C.............................................................................................2-74
2.9.2T62.088C.............................................................................................2-75
Chapter  3BIOS Setup Utility
3.1About My Computer.............................................................................................3-2
3.2System Configuration...........................................................................................3-3
3.2.1Date and Time......................................................................................3-3
3.2.2Floppy Drives........................................................................................3-3
3.2.3Hard Disks............................................................................................3-3
3.2.4Num Lock After Boot.............................................................................3-3
3.2.5LCD Expansion Mode...........................................................................3-3
3.2.6Internal Speaker....................................................................................3-4
3.2.7Silent Boot............................................................................................3-4
3.2.8Fast Boot................................................................................................3- 
						

							viii3.3Advanced System Configuration...........................................................................3-5
3.3.1Internal Cache........................................................................................3-5
3.3.2External Cache......................................................................................3-5
3.3.3Enhanced IDE Features.........................................................................3-5
3.3.4Onboard Communication Ports..............................................................3-6
3.3.5Onboard USB.........................................................................................3-6
3.3.6Reset PnP Resources............................................................................3-7
3.4Power Saving Options..........................................................................................3-8
3.4.1When Lid is Closed................................................................................3-8
3.4.2Suspend to Disk on Critical Battery........................................................3-8
3.4.3Display Always On.................................................................................3-8
3.4.4Resume On Modem Rings.....................................................................3-8
3.4.5Resume On Schedule............................................................................3-9
3.5System Security..................................................................................................3-10
3.5.1Supervisor and User Passwords...........................................................3-10
3.5.2Diskette Drive Access Control..............................................................3-11
3.5.3Hard Disk Drive Access Control...........................................................3-11
3.5.4Start Up Sequences.............................................................................3-11
3.5.5Refresh New BIOS...............................................................................3-11
3.6Reset To Default Settings...................................................................................3-12
Chapter  4Disassembly and Unit Replacement
4.1General Information..............................................................................................4-1
4.1.1Before You Begin...................................................................................4-1
4.1.2Connector Types....................................................................................4-3
4.1.3Disassembly Sequence..........................................................................4-4
4.2Removing the Module...........................................................................................4-6
4.3Replacing the Hard Disk Drive..............................................................................4-7
4.4Replacing Memory................................................................................................4-8
4.5Removing the Keyboard.....................................................................................4-10
4.6Replacing the CPU.............................................................................................4-12
4.7Removing the Display.........................................................................................4-13
4.8Disassembling the Housing.................................................................................4-14 
						

							ix4.8.1Detaching the Lower Housing from the Inside Assembly......................4-14
4.8.2Detaching the Upper Housing from the Inside Assembly......................4-15
4.8.3Removing the Touchpad......................................................................4-16
4.8.4Removing the Main Board....................................................................4-16
4.9Disassembling the Display..................................................................................4-19
Appendices
Appendix  AModel Number Definition
Appendix  BExploded View Diagram
Appendix  CSpare Parts List
Appendix  DSchematics
Appendix  EBIOS POST Checkpoints 
						

							xList  of  Figures
1-1Lid Switch.............................................................................................................1-2
1-2Rear Port Location................................................................................................1-3
1-3Left Port Location.................................................................................................1-4
1-4Indicator Lights.....................................................................................................1-5
1-5System Board (Top Side)....................................................................................1-12
1-6System Board (Bottom Side)...............................................................................1-13
1-7Media Board (Top Side)......................................................................................1-14
1-8Media Board (Bottom Side).................................................................................1-15
1-9Mainboard Jumpers and Connectors (Top Side).................................................1-16
1-10Mainboard Jumpers and Connectors (Bottom Side)............................................1-17
1-11Media Board Jumpers and Connectors (Top Side)..............................................1-18
1-12Media Board Jumpers and Connectors (Bottom Side).........................................1-18
1-13System Functional Block Diagram......................................................................1-42
1-14System Bus Block Diagram.................................................................................1-43
2-1PIIX4 Architecture Block Diagram.........................................................................2-6
2-2PIIX4 Simplified Block Diagram............................................................................2-7
2-3NM2160 Pin Diagram..........................................................................................2-30
2-4NMA1 Block Diagram.........................................................................................2-39
2-5NMA1 Pin Diagram.............................................................................................2-40
2-687C552 Block Diagram.......................................................................................2-44
2-787C552 Pin Diagram...........................................................................................2-45
2-8NS87338VJG Block Diagram..............................................................................2-50
2-9NS87338VJG Pin Diagram.................................................................................2-51
2-10CL-PD6832 Pin Diagram.....................................................................................2-60
2-11T62.036.C Pin Diagram......................................................................................2-72
2-12T62.055.C Pin Diagram......................................................................................2-74
2-13T62.088.C Pin Diagram......................................................................................2-75
4-1Removing the Battery Pack..................................................................................4-2
4-2Using Plastic Stick on Connector With Locks........................................................4-3
4-3Disassembly Flow.................................................................................................4-5
4-4Removing the Module...........................................................................................4-6
4-5Removing the Hard Disk Drive Bay Cover............................................................4-7
4-6Removing the Hard Disk Drive..............................................................................4-7
4-7Installing a Memory Module..................................................................................4-8