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Acer TravelMate 270 TravelMate 270 Service Guide - Page 40

Memory Address Map, IRQ Assignment Map, Mechanical Specification, Standard Floppy Disk Controller

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Mechanical Specification Item Switch Power switch Lid switch Internet switch Wireless ON/OFF switch E-mail switch Specification Memory Address Map Memory Address 00100000h-000F0000h 000CD000h-000C0000h 000C0000h-000A0000h 000A0000h-00000000h I/O Address Map 000-00F 020-021 I/O Address 040-043 060, 064 061 040B 061 070-071 080-08F 0A0-0A1 0C0-0DF 0F0-0FF 170-177 1F0-1F7 220-22F 240-24F 278-27F 378,37A 3B0-3BB 3C0-3DF 3F0h-3F7 3F0-3F7 480-48F, 4D6 4D0-4D1 CF8-CFF IRQ Assignment Map IRQ00 IRQ01 IRQ02 IRQ03 Interrupt Channel Size 64KB 128 KB 640KB Function System BIOS VGA BIOS Video memory (VRAM) Conventional memory Function DMA controller-1 Interrupt controller-1 Timer 1 Keyboard controller 38859 chip select System speaker out DMA controller-1 System speaker Real-time clock and NMI mask DMA page register Interrupt controller-2 DMA controller-2 Numeric data processor 2nd EIDE device (CD-ROM) select 1st EIDE device (hard drive) select Audio Audio (optional) Parallel port 3 Paraller port 1 Video Controller Standard Floppy Disk Controller Floppy disk controller DMA controller-1 PCI configuration register Function(Hardware) System timer Keyboard Programmable Interrup Controller Free by default or Generic Chapter 1 35

Section	Page
TravelMate 270	1
Revision History	2
Copyright	3
Disclaimer	3
Conventions	4
Preface	5
Table of Contents	6
Ch1. System Specifications	8
Features	8
System Block Diagram	10
Board Layout	11
Top View	11
Bottom View	12
Outlook View	13
Front View	13
Left Panel	15
Right Panel	16
Rear Panel	17
Bottom Panel	18
Indicators	19
Lock Keys	20
Embedded Numeri c Keypad	21
Windows Keys	22
Hot Keys	23
The Euro Symbol	25
Launch Keys	26
E-Mail Detection	27
Touchpad	28
Touchpad Basics	28
Hardware Specifications and Configurations	30
Ch2. System Utilities	42
BIOS Setup Utility	42
Navigating the BIOS Utility	42
Main	44
System Devices	46
Security	47
Boot	51
Info.	52
Exit	53
BIOS Flash Utility	54
System Utility Diskette	54
System Diagnostic Diskette	54
Running Diagnostics Program	55
Ch3. Machine Disassembly and Replacement	60
General Information	61
Disassembly Procedure Flowchart	62
Removing the HDD Module/Memory/FDD Module/Optical Module and CPU	65
Removing the HDD Module	65
Removing the Memory	65
Removing the FDD Module	65
Removing the Optical Module	65
Removing the CPU	66
Removing the LCD Module and Switch Board	68
Removing the LCD Module	68
Removing the Switch Board	69
Disassembling the Main Unit	70
Separate the main unit into the logic upper and the logic lower assembly	70
Disassembling the logic upper	70
Disassembling the logic lower	72
Disassembling the LCD Module	73
Disassembling the External Modules	74
Disassembling the HDD Module	74
Disassembling the Floppy Disk Drive Module	74
Disassembling the Optical Drive Module	74
Ch4. Troubleshooting	76
System Check Procedures	77
External Diskette Drive Check	77
External CD-ROM/DVD-ROM Drive Check	77
Keyboard or Auxiliary Input Device Check	78
Memory Check	78
Power System Check	78
Touchpad Check	80
Display Check	80
Sound Check	81
Power-On Self-Test (POST) Error Message	82
Index of Error Messages	83
Index of Symptom-to-FRU Error Message	85
Intermittent Problems	88
Undetermined Problems	89
Index of AFlash BIOS Error Message	90
Ch5. Jumper and Connector Locations	92
Top View	92
SW1 Settings (Lid switch)	93
SW2 Settings	93
Bottom View	94
Ch6. FRU (Field Replaceable Unit) List	96
Exploded Diagram	97
The System	97
Logic Upper Assy	98
LCD 14.1\	99
LCD 15.0\	100
DVD Assy	101
FDD Assy	102
HDD (W/O HDD) Assy	102
App.A Model Definition and Configuration	113
TravelMate 270 Series	113
Main Features	114
App.B Test Compatible Components	116
Microsoft Windows XP Home Environment Test	117
Microsoft Windows XP Pro Environment Test	119
Microsoft Windows 2000 Environment Test	121

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