Acer 650 manual IRQ Assignment Map, DMA Channel Assignment, Interrupt Channel FunctionHardware

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I/O Address Map

I/O Address	Function

1F0-1F7	Primary IDE channel

378, 37F	Parallel port

3B0-3BB	VGA I/O adress
3C0-3DF

CF8-CFF	PCI configuration register

000-00F	DMA controller-1

IRQ Assignment Map

Interrupt Channel	Function(Hardware)

IRQ00	System timer

IRQ01	Keyboard

IRQ02	Programmable interrupt controller

IRQ03	IrDA Fast Infrared Port

IRQ04	Communication port (COM1)

IRQ05	Winbond SD controller

IRQ06	Standard floppy disk controller

IRQ07	ECP printer port (LPT1)

IRQ08	CMOS/RTC

IRQ09	SCI IRQ used by ACPI bus

IRQ12	PS/2 mouse

IRQ13	Numeric data processor

IRQ14	Primary IDE channel

IRQ15	Secondary IDE channel

DMA Channel Assignment

Item	Specification

Channel 1	IrDA Fast Infrared Port

Channel 3	ECP printer port

Channel 4	DMA controller

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Chapter 1

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Contents Acer TravelMate 650 Series Date Chapter Updates Revision HistoryCopyright DisclaimerConventions Screen MessagesPreface Page Table of Contents Appendix C Online Support Information Index 101 Chapter TroubleshootingAppendix B Test Compatible Components Features ChapterExpansion System Block Diagram P4-MCRT Board LayoutTop View LPTBottom View Icon Description Outlook ViewFront Open View Front Panel Left Panel Right Panel Rear Panel Icon Description Connects to a phone lineBottom Panel Indicators Icon Function DescriptionLock Keys Lock Key DescriptionDesired Access Num Lock On Num Lock Off Embedded Numeric KeypadWindows Keys Key Icon DescriptionHot Keys Chapter Euro Symbol Click on Start, Settings, Control PanelLaunch Key Default application Launch KeysFunction Left Button Right Button Scroll Button Tap TouchpadTouchpad Basics Chapter Processor Hardware Specifications and ConfigurationsSpecification Second Level CacheLAN Interface Wireless Module 802.11b optional deviceMemory Combinations Modem InterfaceHard Disk Drive Interface Wireless Module 802.11a/b optional deviceFour-in-One Card Reader DVD-ROM InterfaceSpeakers Video Resolutions Mode for both LCD and CRTAudio Interface Video InterfaceUSB Port Video MemoryParallel Port Ieee 1394 PortSystem Board Major Chips Pcmcia PortSmart Card Reader KeyboardLCD Inverter BatterySimultaneously by software specification Memory Address Map System Power ManagementAC Adaptor Address MapInterrupt Channel FunctionHardware IRQ Assignment MapDMA Channel Assignment Bios Setup Utility System UtilitiesNavigating the Bios Utility Info Parameter DescriptionMain Parameter Description Format/Option IRQ7/IRQ5 AdvancedParameter Description Options DMA3/DMA1Security Clear or Set Parameter Description OptionRemoving a Password Chapter Boot Exit Bios Flash Utility System Diagnostic DisketteChapter Machine Disassembly and Replacement General Information Before You BeginDisassembly Procedure Flowchart ODDScrew List Screw M2X3-I-BNI-NYLOK Screw M2.5X0.45+7I-NYLOKScrew M1.7X3.5-I-BZN Screw M2.0X5.0-I-BNI-NYLOKRemoving the Battery Pack Removing the Optical Module Removing the LCD Module Disassembling the Main Unit Remove the function key board and the keyboardDisassembling the logic upper assembly Disassembling the logic lower assembly Chapter Disassembling the LCD Module Chapter Disassembling the External Modules Disassembling the HDD ModuleChapter Troubleshooting Symptoms Verified Go ToExternal CD-ROM Drive Check System Check ProceduresExternal Diskette Drive Check Keyboard or Auxiliary Input Device CheckPower System Check Memory checkCheck the Battery Pack Touchpad checkPower-On Self-Test Post Error Message Error Messages FRU/Action in Sequence Index of Error MessagesError Message List No beep Error Messages FRU/Action in Sequence Indicator-Related Symptoms Index of Symptom-to-FRU Error MessageLCD-Related Symptoms Power-Related SymptomsSpeaker-Related Symptoms PCMCIA-Related SymptomsMemory-Related Symptoms Power Management-Related SymptomsPeripheral-Related Symptoms Keyboard/Touchpad-Related SymptomsModem/LAN-Related Symptoms Intermittent Problems Undetermined Problems DimmChapter FRU Field Replaceable Unit List Battery Sanyo LI-ION 6CELL 3UF103450P Battery Sanyo LI-ION 8CELL 4UR18650F-2Battery Simplo LI-ION 8CELL LI-ION Modem /BLUETOOTH Combo Board AmbitModem Cable Cover Switch CableTouchpad Cable Middle Cover W/ Name PlateWireless LAN Antenna Y Cable Wireless Board CoverBluetooth Antenna Wireless LAN AntennaEucalyptus DK23EA/30 HDD 30GB/2.5 IN./4200RPM/FUJITSU HDD 20GB/2.5 IN./4200RPM/TOSHIBA TitanMK2018GAP HDD 30GB/2.5 IN./4200RPM/HITACHI Hornet 16L MHS2030AT HDD 30GB/2.5 IN./4200RPM/TOSHIBALTN141XB LCD Module 14.1 TFT XGA Hannstar LCD LCD Module 14.1 TFT XGA QDILCD Module 14.1 TFT XGA Samsung LCD Module 15 TFT XGA AU B150XG01LCD Panel with LOGO-15 LCD Bracket 14.1 Left W/HINGELCD Panel with LOGO-14 LCD BezelCD-ROM Module 24X QSI SCR-242-S Memory SO-DIMM DDR266/128MBMemory SO-DIMM DDR266/512MB/0.14U CD-ROM Module 24X Samsung SN-124PHeatsink W/FAN TouchpadSpeaker SET Smart Card Reader86.T23V7.012 Chapter Appendix a TravelMate 650 SeriesMain Features Appendix a Test Compatible Components Appendix BKeyboard SpecificationsMicrosoft Windows XP Pro Environment Test KeypadLAN Card Wireless LAN CardModem Card LAN+Modem CardUSB Camera USB MouseUSB Keyboard USB PrinterAppendix B Microsoft Windows 2000 Environment Test Scsi USB HDD Appendix B Appendix B Online Support Information Appendix C Index Index