Acer AcerNote 970 User manual

AcerNote 970
Service Guide

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About this Manual
Purpose
This service guide contains reference information for the 370 notebook 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 four chapters and seven appendices as follows:
Chapter 1 Introduction
This chapter gives the technical specifications for the notebook and its peripherals.
Chapter 2 Major Chip Descriptions
This chapter lists the major chips used in the notebook and includes pin descriptions and
related diagrams of these chips.
Chapter 3 BIOS Setup Information
This chapter includes the system BIOS information, focusing on the BIOS setup utility.
Chapter 4 Disassembly and Unit Replacement
This chapter tells how to disassemble the notebook and replace components.
Appendix A Model Number Definition
This appendix lists the model number definition of this notebook model series.
Appendix B Exploded View Diagram
This appendix shows the exploded view diagram of the notebook.
Appendix C Spare Parts List
This appendix contains spare parts information.
Appendix D Schematics
This appendix contains the schematic diagrams of the notebook.

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Appendix E BIOS POST Checkpoints
This appendix lists all the BIOS POST checkpoints.
Appendix F Forms
This appendix contains standard forms that can help improve customer service.
Related product information
AcerNote 970 User's Manual contains system description and general operating instructions.
Vesuvius-LS Chipset Data Sheets contain information on the system core chips (V1-LS, V2-LS,
V3-LS).
NMG2090 Data Sheet contains detailed information on the NeoMagic VGA controller.
RCV288Aci/SVD Chipset Data Sheet contains detailed information on the Rockwell Modem
controller.
ESS1688W Data Sheet contains detailed information on the ESS audio controller.
87C552 Data Sheet contains detailed information on the Philips System Management Controller.
NS87336VLJ Data Sheet contains detailed information on the NS super I/O controller.
CL-PD6730 Data Sheet contains detailed information on the Cirrus Logic PCMCIA controller.
PCI0643 Data Sheets contain detailed information on the CMD PCI IDE controller.
T62.036.C , T62.039. and C T62.055.C Data Sheets contain detailed information on the Ambit
components.
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 Represents text input by the user.
Screen messages Denotes actual messages that appear onscreen.
a, e, s, 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.

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Table of Contents
Chapter 1 System Introduction
1.1 Overview..............................................................................................................1-1
1.1.1 Features.................................................................................................1-1
1.1.2 FlashStart - Turning the Notebook Computer On and Off.......................1-2
1.1.3 Ports......................................................................................................1-3
1.1.4 Automatic Tilt-up Keyboard....................................................................1-4
1.1.5 Indicator Light........................................................................................1-5
1.1.6 Keyboard Hotkey List.............................................................................1-6
1.2 System Specification Overview ............................................................................1-9
1.3 Board Layout ......................................................................................................1-11
1.3.1 System Board (Top Side).....................................................................1-12
1.3.2 System Board (Bottom Side)................................................................1-13
1.3.3 Media Board (Top Side).......................................................................1-14
1.3.4 Media Board (Bottom Side)..................................................................1-15
1.3.5 CPU Board(Top Side) ..........................................................................1-16
1.3.6 CPU Board (Bottom Side)....................................................................1-16
1.4 Jumpers and Connectors....................................................................................1-17
1.5 System Configurations and Specifications ..........................................................1-21
1.5.1 Memory Address Map..........................................................................1-21
1.5.2 Interrupt Channel Map..........................................................................1-21
1.5.3 I/O Address Map..................................................................................1-22
1.5.4 DMA Channel Map...............................................................................1-23
1.5.5 GPIO Port Definition Map ....................................................................1-23
1.5.6 PCI Devices Assignment......................................................................1-27
1.5.7 Power Management.............................................................................1-28
1.5.8 CPU.....................................................................................................1-35
1.5.9 BIOS....................................................................................................1-35
1.5.10 System Memory...................................................................................1-36
1.5.11 Cache Memory.....................................................................................1-37
1.5.12 Video Memory......................................................................................1-37
1.5.13 Video Display Modes............................................................................1-37
1.5.14 Audio ...................................................................................................1-38
1.5.15 Modem.................................................................................................1-39

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1.5.16 PCMCIA...............................................................................................1-39
1.5.17 Parallel Port.........................................................................................1-40
1.5.18 Serial Port............................................................................................1-40
1.5.19 Touchpad.............................................................................................1-40
1.5.20 SIR ......................................................................................................1-41
1.5.21 LCD .....................................................................................................1-41
1.5.22 CD-ROM..............................................................................................1-42
1.5.23 Diskette Drive ......................................................................................1-42
1.5.24 Hard Disk Drive....................................................................................1-43
1.5.25 Keyboard .............................................................................................1-43
1.5.26 Battery.................................................................................................1-44
1.5.27 DC-DC Converter.................................................................................1-44
1.5.28 DC-AC Inverter ....................................................................................1-44
1.5.29 AC Adapter ..........................................................................................1-45
1.6 System Block Diagrams......................................................................................1-46
1.6.1 System Functional Block Diagram........................................................1-46
1.6.2 System Bus Block Diagram..................................................................1-47
1.7 Environmental Requirements..............................................................................1-48
1.8 Mechanical Specifications...................................................................................1-49
Chapter 2 Major Chips Description
2.1 Major Component List.......................................................................................... 2-1
2.2 PicoPower Vesuvius-LS Chipset.......................................................................... 2-2
2.2.1 PT86C521(V1-LS) System Controller.................................................... 2-8
2.2.2 PT86C522(V2-LS) Data Path Controller...............................................2-18
2.2.3 PT86C523(V3-LS) PCI to ISA Controller..............................................2-22
2.3 NM2090 Video Controller....................................................................................2-28
2.3.1 Features...............................................................................................2-29
2.3.2 Pin Diagram.........................................................................................2-31
2.3.3 Pin Description.....................................................................................2-32
2.4 Rockwell RCV288Aci/SVD Modem Chipset.........................................................2-42
2.4.1 R6723-12 MCU (Microcomputer) Chip..................................................2-45
2.4.2 R6684-17 MDP (Modem Data Pump) Chip...........................................2-49
2.4.3 R6693-14 DTP (DigiTalk Processor) Chip ............................................2-53

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2.5 ESS1688W Sound Controller..............................................................................2-56
2.5.1 Block Diagram .....................................................................................2-56
2.5.2 Pin Diagram.........................................................................................2-57
2.5.3 Pin Descriptions...................................................................................2-58
2.6 Philips 87C552 System Management Controller .................................................2-63
2.6.1 Features...............................................................................................2-63
2.6.2 Block Diagram .....................................................................................2-64
2.6.3 Pin Diagram.........................................................................................2-65
2.6.4 Pin Descriptions...................................................................................2-66
2.7 NS87336VLJ Super I/O Controller ......................................................................2-68
2.7.1 Features...............................................................................................2-68
2.7.2 Block Diagram .....................................................................................2-70
2.7.3 Pin Diagram.........................................................................................2-71
2.7.4 Pin Description.....................................................................................2-72
2.8 CL-PD6730 PCI PCMCIA Controller ...................................................................2-80
2.8.1 Features...............................................................................................2-80
2.8.2 Pin Diagram.........................................................................................2-81
2.8.3 Pin Descriptions...................................................................................2-81
2.9 PCI0643 PCI E-IDE Controller............................................................................2-91
2.9.1 Features...............................................................................................2-91
2.9.2 Pin Diagram.........................................................................................2-92
2.9.3 Signal Descriptions ..............................................................................2-93
2.10 Ambit T62.036.C DC-DC Converter...................................................................2-97
2.10.1 Pin Diagram.........................................................................................2-97
2.10.2 Pin Descriptions...................................................................................2-97
2.11 Ambit T62.039.C/T62.055.C DC-AC Inverter ......................................................2-99
2.11.1 Pin Diagram.........................................................................................2-99
2.11.2 Pin Descriptions...................................................................................2-99
Chapter 3 BIOS Setup Information
3.1 When to Use Setup...............................................................................................3-1
3.2 Entering Setup......................................................................................................3-2
3.3 About My Computer..............................................................................................3-3
3.4 System Configuration ...........................................................................................3-5

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3.4.1 Date and Time ...................................................................................... 3-5
3.4.2 Diskette Drives...................................................................................... 3-5
3.4.3 Hard Disks ............................................................................................ 3-6
3.4.4 Num Lock After Boot............................................................................. 3-6
3.4.5 LCD Expansion Mode ........................................................................... 3-6
3.4.6 Internal Cache....................................................................................... 3-8
3.4.7 External Cache ..................................................................................... 3-8
3.4.8 Enhanced IDE Features........................................................................ 3-8
3.4.9 Onboard Communication Ports ............................................................. 3-9
3.4.10 Onboard Audio.....................................................................................3-11
3.4.11 Reset PnP Resources ..........................................................................3-12
3.5 Power Saving Options ........................................................................................3-13
3.5.1 When Lid is Closed..............................................................................3-13
3.5.2 Suspend to Disk on Critical Battery ......................................................3-14
3.5.3 Display Always On ...............................................................................3-14
3.5.4 Internal Speaker...................................................................................3-14
3.5.5 External Mouse Location......................................................................3-14
3.5.6 Internal Modem....................................................................................3-15
3.5.7 Resume On Modem Ring.....................................................................3-15
3.5.8 Resume On Schedule..........................................................................3-15
3.5.9 Resume Date / Resume Time..............................................................3-15
3.6 System Security..................................................................................................3-16
3.6.1 Supervisor and User Passwords...........................................................3-16
3.6.2 Diskette Drive Control..........................................................................3-17
3.6.3 Hard Disk Drive Control .......................................................................3-18
3.6.4 Start Up Sequences.............................................................................3-18
3.6.5 Flash New BIOS...................................................................................3-18
3.7 Reset to Default Settings ....................................................................................3-20
Chapter 4 Disassembly and Unit Replacement
4.1 General Information............................................................................................. 4-2
4.1.1 Before You Begin.................................................................................. 4-2
4.1.2 Connector Types................................................................................... 4-3
4.1.3 Disassembly Sequence......................................................................... 4-4
4.2 Removing the Module.......................................................................................... 4-6

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4.3 Removing the Keyboard .......................................................................................4-7
4.3 Removing or Replacing the CPU ..........................................................................4-9
4.4 Removing the Display.........................................................................................4-10
4.5 Disassembling the Housing.................................................................................4-11
4.5.1 Detaching the Lower Housing from the Inside Assembly ......................4-11
4.5.2 Replacing the Hard Disk Drive .............................................................4-12
4.5.3 Replacing Memory...............................................................................4-12
4.5.4 Detaching the Upper Housing from the Inside Assembly ......................4-14
4.5.5 Removing the Touchpad......................................................................4-15
4.5.6 Removing the Main Board....................................................................4-16
4.5 Disassembling the Display..................................................................................4-18
Appendix A Model Number Definition
Appendix B Exploded View Diagram
Appendix C Spare Parts List
Appendix D Schematics
Appendix E BIOS POST Checkpoints
Appendix F Technical Bulletins and Updates
Appendix G Forms

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List of Figures
1- 1 FlashStart Automatic Power-on Switch (Lid Switch)............................................. 1-2
1- 2 Ports.................................................................................................................... 1-3
1- 3 Indicator Lights .................................................................................................... 1-5
1- 4 System Board (Top Side)....................................................................................1-12
1- 5 System Board (Bottom Side)...............................................................................1-13
1- 6 Media Board (Top Side)......................................................................................1-14
1- 7 Media Board (Bottom Side).................................................................................1-15
1- 8 CPU board(Top Side)..........................................................................................1-16
1- 9 CPU board (Bottom Side) ...................................................................................1-16
1- 10 Mainboard Jumpers and Connectors (Top Side)..................................................1-17
1- 11 Mainboard Jumpers and Connectors (Bottom Side) ............................................1-18
1- 12 Media Board Jumpers and Connectors (Top Side)..............................................1-19
1- 13 Media Board Jumpers and Connectors (Bottom Side).........................................1-20
1- 14 System Functional Block Diagram ......................................................................1-46
1- 15 System Bus Block Diagram.................................................................................1-47
2-1 Architecture Block Diagram.................................................................................. 2-7
2-2 PT86C521(V1-LS) Block Diagram........................................................................ 2-8
2-3 PT86C521(V1-LS) Pin Diagram........................................................................... 2-9
2-4 PT86C522(V2-LS) Block Diagram.......................................................................2-18
2-5 PT86C522(V2-LS) Pin Diagram..........................................................................2-19
2-6 PT86C521(V3-LS) Block Diagram.......................................................................2-22
2-7 PT86C521(V3-LS) Pin Diagram..........................................................................2-23
2-8 NMG2090 Pin Diagram.......................................................................................2-31
2-9 RCV288Aci/SVD Architecture Block Diagram .....................................................2-44
2-10 R6723-12 Pin Diagram........................................................................................2-45
2-11 R6684-17 Pin Diagram........................................................................................2-49
2-12 R6693-14 Pin Diagram........................................................................................2-53
2-13 ESS1688W Block Diagram.................................................................................2-56
2-14 ESS1688W Pin Diagram.....................................................................................2-57
2-15 87C552 Block Diagram.......................................................................................2-64
2-16 87C552 Pin Diagram...........................................................................................2-65
2-13 NS87336VLJ Block Diagram...............................................................................2-70
2-14 NS87336VLJ Pin Diagram ..................................................................................2-71
2-19 PCI0643 Pin Diagram.........................................................................................2-92

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2-20 T62.036.C Pin Diagram ......................................................................................2-97
2-21 T62.039.C/T62.055.C Pin Diagram.....................................................................2-99
4-1 Removing the Battery Pack ..................................................................................4-2
4-2 Using Plastic Stick on Connector With Lock..........................................................4-3
4-3 Disassembly Flow.................................................................................................4-5
4-4 Removing the Module...........................................................................................4-6
4-5 Removing the Display Hinge Covers.....................................................................4-7
4-6 Removing the Center Hinge Cover .......................................................................4-7
4-7 Lifting Out the Keyboard.......................................................................................4-8
4-8 Unplugging the Keyboard Connectors and Removing the Keyboard......................4-8
4-9 Removing the CPU Module Lock..........................................................................4-9
4-10 Removing the CPU Module ..................................................................................4-9
4-11 Unplugging the Display Cable.............................................................................4-10
4-12 Removing the Display Hinge Screws and Removing the Display.........................4-10
4-13 Removing the Hard Disk Drive Bay Cover..........................................................4-11
4-14 Removing the Hard Disk Drive Bay Cover..........................................................4-12
4-15 Installing and Removing Memory........................................................................4-13
4-16 Installing a Memory Module via the Memory Door ..............................................4-13
4-17 Removing the Battery Bay Screws......................................................................4-14
4-18 Detaching the Upper Housing from the Inside Frame Assembly..........................4-14
4-19 Removing the Touchpad.....................................................................................4-15
4-20 Unplugging the Speaker Connectors and Battery Pack Connector ......................4-16
4-21 Removing the Main Board ..................................................................................4-16
4-22 Removing the Charger Board and Multimedia Board ..........................................4-17
4-23 Removing the PC Card Slots..............................................................................4-17
4-24 Removing the LCD Bumpers ..............................................................................4-18
4-25 Removing the Display Bezel Screws...................................................................4-18
4-26 Removing the Display Bezel...............................................................................4-19
4-27 Removing the Display Panel Screws and the Display Connectors.......................4-19
4-28 Removing the Display Cable Assembly...............................................................4-20

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List of Tables
1-1 Port Descriptions.................................................................................................. 1-4
1-2 Indicator Status Descriptions................................................................................ 1-5
1-3 Hotkey List Descriptions....................................................................................... 1-6
1-4 Eject Menu Descriptions ...................................................................................... 1-8
1-5 System Specifications.......................................................................................... 1-9
1-6 Mainboard Jumpers Pads Settings (Bottom Side) ...............................................1-18
1-7 Memory Address Map.........................................................................................1-21
1-8 Interrupt Channel Map ........................................................................................1-21
1-9 I/O Address Map.................................................................................................1-22
1-10 DMA Channel Map..............................................................................................1-23
1-11 GPIO Port Definition Map ...................................................................................1-23
1-12 PCI Devices Assignment.....................................................................................1-27
1-13 PMU Timers List.................................................................................................1-28
1-14 CPU Specifications.............................................................................................1-35
1-15 BIOS Specifications............................................................................................1-35
1-16 System Memory Specifications...........................................................................1-36
1-17 SIMM memory combination list...........................................................................1-36
1-18 Cache Memory Specifications.............................................................................1-37
1-19 Video Memory Specification ...............................................................................1-37
1-20 Video Display Specification.................................................................................1-37
1-21 External CRT Resolution Modes.........................................................................1-38
1-22 LCD Resolution Modes .......................................................................................1-38
1-23 Audio Specifications ...........................................................................................1-38
1-24 Modem Specifications.........................................................................................1-39
1-25 PCMCIA Specifications.......................................................................................1-39
1-26 Parallel Port Specifications.................................................................................1-40
1-27 Serial Port Specifications....................................................................................1-40
1-28 Touchpad Specifications.....................................................................................1-40
1-29 SIR Specifications...............................................................................................1-41
1-30 LCD Specifications .............................................................................................1-41
1-31 CD-ROM Specifications......................................................................................1-42
1-32 Diskette Drive Specifications ..............................................................................1-42
1-33 Hard Disk Drive Specifications............................................................................1-43
1-34 Keyboard Specifications......................................................................................1-43

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1-35 Battery Specifications.........................................................................................1-44
1-36 DC-DC Converter Specifications.........................................................................1-44
1-37 DC-AC Inverter Specifications ............................................................................1-45
1-38 AC Adapter Specifications ..................................................................................1-45
1-39 Environmental Requirements..............................................................................1-48
1-40 Mechanical Specifications...................................................................................1-49
2-1 Major Chips List....................................................................................................2-1
2-2 V1-LS Pin Descriptions.......................................................................................2-10
2-3 V2-LS Pin Descriptions.......................................................................................2-20
2-4 V3-LS Pin Descriptions.......................................................................................2-24
2-5 NMG2090 Pin Description Conventions..............................................................2-32
2-6 NMG2090 Pin Descriptions.................................................................................2-32
2-7 RCV288Aci/SVD Signal Type Annotation............................................................2-44
2-8 R6723-12 Pin Descriptions..................................................................................2-46
2-9 R6684-17 Pin Descriptions (MDP).......................................................................2-50
2-10 R6693-14 Pin Descriptions..................................................................................2-54
2-11 ESS1688W Pin Descriptions...............................................................................2-58
2-12 87C552 Pin Descriptions.....................................................................................2-66
2-10 NS87336VLJ Pin Descriptions ............................................................................2-72
2-14 CL-PD6730 Pin Descriptions...............................................................................2-83
2-15 PCI0643 Signal Descriptions...............................................................................2-93
2-16 T62.036.C Pin Descriptions.................................................................................2-97
2-17 T62.039.C/T62.055.C Pin Descriptions ...............................................................2-99
3-1 About My Computer Item Descriptions..................................................................3-4
3-2 Diskette Drive Control Settings...........................................................................3-17
3-3 Hard Disk Drive Control Settings.........................................................................3-18
3-4 Start Up Sequences Settings ..............................................................................3-18
3-5 Error Beep Sequences During the Boot ROM Process........................................3-19
4-1 Guide to Disassembly Sequence ..........................................................................4-4

C h a p t e r 1C h a p t e r 1
Introduction
Introduction 1-1
This chapter introduces the notebook computer, and describes its features and specifications.
1.1. Overview
This Pentium-based notebook computer combines high-performance, versatility, multimedia
capabilities and a truly advanced power management system.
1.1.1 Features
PERFORMANCE
•Mobile Pentium microprocessor (P54CSLM-120/133/150)
•64-bit DIMM memory architecture
•256KB or 512 KB external (L2) cache memory
•Large display in DualScan STN(11.3”) or active-matrix TFT(11.8” or 12.1”)
•PCI local bus video with 128-bit graphics accelerator
•Flexible module bay (3.5-inch floppy drive or CD-ROM drive)
•High-capacity, Enhanced-IDE hard disk
•Heuristic power management with suspend-to-memory and zero-volt suspend-to-disk power-
saving modes
•Lithium-Ion smart battery pack
•High speed connectivity
•16-bit stereo audio with built-in FM synthesizer
•Built-in microphone and dual angled stereo speakers
•30fps (frames per second) full-screen, true-color MPEG video playback
•Infrared wireless communication
•Internal 28.8Kbps modem with DSVD (digital simultaneous voice over data) support; with
speakerphone and telephone answering device features
HUMAN-CENTRIC DESIGN AND ERGONOMICS
•Intuitive FlashStart automatic power-on

1-2AN970 Service Guide
•Sleek, smooth and stylish design
•Automatic tilt-up, full-sized, full-function keyboard
•Wide and comfortable palm rest
•Ergonomically-centered touchpad pointing device
EXPANSION
•PC Card (formerly PCMCIA) slots (two type II/I or one type III)
•Mini dock option with built-in Ethernet
•User-upgradeable memory
1.1.2 FlashStart - Turning the Notebook Computer On and Off
A noticeably unique feature about this notebook is that it has no on/off switch. Instead it employs
a lid switch, located near the center of the display hinge, that tells the notebook when it should
wake up or go to sleep.
Figure 1- 1FlashStart Automatic Power-on Switch (Lid Switch)
When you close the display lid, the notebook enters suspend-to-memory or suspend-to-disk mode
before turning off the power, depending on the When Lid is Closed parameter setting in BIOS
Setup. When you open the lid, the notebook resumes from where you left off before closing the
lid.
Suspend-to-memory, suspend-to-disk and other power management issues are discussed in detail
in power management section.

Introduction 1-3
1.1.3 Ports
The notebook computer’s ports are found on the rear and left panel.
1234
5678
910
11
1DC-in Port 7RJ-11 Phone Jack
2PS/2 Port 8Infrared Port
3Serial Port 9PC Card Slots
4Parallel Port 10 Microphone-in/Line-in Jack
5Mini Dock Connector 11 Speaker-out/Line-out Jack
6External CRT Port
Figure 1- 2Ports

1-4AN970 Service Guide
The following table describes the ports.
Table 1- 1Port Descriptions
#Icon Port Connects to...
Rear Panel Ports
1DC-in port AC adapter and power outlet
2PS/2 port PS/2-compatible device (e.g., PS/2 keyboard,
keypad, mouse)
3Serial port
(UART16650-compatible) Serial device (e.g., serial mouse)
4Parallel port
(EPP/ECP-compliant) Parallel device (e.g., parallel printer, floppy drive module when used externally)
5Mini dock connector Mini dock
6External CRT port External monitor (up to 1024x768, 256 colors )
7Modem jack (RJ-11) Phone line
8Infrared port Infrared-aware device (e.g., notebook with IR
port, desktop with IR adapter, IR-capable
printer)
Left Panel Ports
9PC Card slots One Type III or two Type I/II PC cards
10 Microphone-in/Line-in External microphone or line input device
11 Speaker-out/Line-out Amplified speakers or headphones
1.1.4 Automatic Tilt-up Keyboard
A tilt switch, found right above the port cover on the rear of the notebook, allows you to enable or
disable this feature. Follow these steps:
1. Close the lid. 2. To enable, slide the tilt
switch to the right ( ).
To disable, slide the tilt
switch to the left ( ).
3. Open the lid.

Introduction 1-5
1.1.5 Indicator Light
Two indicator lights are found on the display panel.
Power
Indicator
Battery
Indicator
Figure 1- 3Indicator Lights
These indicators and their descriptions are shown in the table below.
Table 1- 2Indicator Status Descriptions
Icon Indicator Light Description
Power Indicator •Lights when power is on
•Flashes when the notebook is in suspend-to-memory mode
Battery Indicator •Lights when battery pack is charging
•Flashes when battery power is low

1-6AN970 Service Guide
1.1.6 Keyboard Hotkey List
The following table lists and describes the hotkeys used by the notebook computer.
Table 1- 3Hotkey List Descriptions
Hotkey Icon Function Description
Fn-Esc Suspend-to-memory Enters suspend-to-memory mode
Fn-F1 ?Help Displays the hotkey menu
Fn-F2 Setup Enters the BIOS Setup utility
Fn-F3 PnP Plug and Play
Configuration Allows the system to re-configure itself and do self- diagnostics
Fn-F4 Screen Blackout Blanks the screen to save power. To wake up the screen,
press any key.
Fn-F5 Display Toggle Switches display from LCD to CRT to both LCD and CRT
Fn-F6 Fuel Gauge On/Off Toggles battery gauge display on/off.
Also shows the following:
•“plug” icon if a powered AC adapter is connected to the
notebook.
•“speaker” icon if speaker output is on (toggled by Fn-F7).
•“T” icon if turbo mode is on (toggled by Fn-2).
Fn-F7 Speaker On/Off Toggles speaker output on and off
Fn-F8 Lock System
Resources Provides notebook security by locking system from access. Requires password input to unlock system.

Introduction 1-7
Table 1- 3Hotkey List Descriptions
Hotkey Icon Function Description
Fn-F9 Eject Accesses the Eject menu. See the following subsection.
Fn-Ctrl-↑Volume Up Increases audio volume
Fn-Ctrl-↓Volume Down Decreases audio volume
Fn-Ctrl-←Balance Left Shifts speaker balance to the left
Fn-Ctrl-→Balance Right Shifts speaker balance to the right
Fn-ÿ-↑Brightness Up Increases screen brightness
Fn-ÿ-↓Brightness Down Decreases screen brightness to save power
Fn-ÿ-→Contrast Up Increases screen contrast (DSTN only)
Fn-ÿ-←Contrast Down Decreases screen contrast (DSTN only)
Fn-↑Fuel Gauge Up With the fuel gauge onscreen, moves the fuel gauge up
Fn-↓Fuel Gauge Down With the fuel gauge onscreen, moves the fuel gauge down
Fn-←Fuel Gauge Left With the fuel gauge onscreen, moves the fuel gauge left
Fn-→Fuel Gauge Right With the fuel gauge onscreen, moves the fuel gauge right
Fn-1 CD Eject Ejects the CD-ROM drive
Fn-2 Turbo Mode On/Off Toggles turbo mode on and off.