Acer Travelmate 4020 Service Guide

							Chapter 115
Easy-launch buttons
The build-in touchpad is a PS/2 compatible pointing device that senses movement on its surface. 
The cursor responds to your finger movements on the touchpad. In addition, the two click buttons provide 
the same functionality as a computer mouse, while the scroll key enables easy up and down scrolling in
documents and web pages.
The touchpad is located in the middle of the palm rest area, providing maximum comfort and efficiency. 
						

							16Chapter 1
Touchpad
The build-in touchpad is a PS/2 compatible pointing device that senses movement on its surface. 
The cursor responds to your finger movements on the touchpad. In addition, the two click buttons provide 
the same functionality as a computer mouse, while the scroll key enables easy up and down scrolling in
documents and web pages.
The touchpad is located in the middle of the palm rest area, providing maximum comfort and efficiency.
Touchpad Basics
Use the touchpad as follows:
TMove your finger across the touchpad to move the cursor.
TPress the left (1) and right (3) buttons located on the edge of the touchpad to do selection and 
execution functions. These two buttons are similar to the left and right buttons on a mouse. 
Tapping on the touchpad is the same as clicking the left button
TUse the 4-way scroll (2) button to scroll up or down and move left or right a page. This button 
mimics your cursor pressing on the right scroll bar of windows applications.  
						

							Chapter 117
Using the Keyboard
The full-sized keyboard includes an embedded numeric keypad, separate cursor keys, two Windows keys and 
twelve function keys.
Lock keys and embedded numeric keypad
The keyboard has four lock keys which you can toggle on and off.
 
The computer features three lock keys, each with its own status indicator light.
NOTE: Scroll Lock doesn’t work in all applications. Toggle on and off by pressing the Fn+F12 keys
             simultaneously.
The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters 
located on the upper right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols 
are not printed on the keys.
Windows Keys
The keyboard features two keys that perform Windows-specific functions.
Lock KeyDescription
Caps Lock When Caps Lock is on, all alphabetic characters are typed in uppercase. Toggle on and 
off by pressing the Caps Lock key on the left side of the keyboard.
Num lock
When Num Lock is on, the embedded numeric keyboard can be used. Toggle on and 
off by pressing the Fn+tkeys simultaneously.
Scroll lock
When Scroll Lock is on, the screen toggles up or down one line
at a time when the up and down cursor control keys are pressed.
Desired actionNum Lock onNum Lock off
Number keys on 
embedded 
keypadType numbers in a normal manner
Cursor-control 
keys on 
embedded 
keypadHold Shift while using cursor-control keys. Hold Fn while using cursor-control 
keys.
Main keyboard 
keysHold Fn while typing letters on embedded keypad. Type the letters in a normal 
manner.
Lock key Description
Caps 
Lock
Fn F10
Fn F11
Fn F12 
						

							18Chapter 1
Hot Keys
The computer employs hot keys or key combinations to access most of the computer’s controls like screen 
brightness, volume output and the BIOS Utility.
To activate hot keys, press and hold the  key before pressing the other key in the hot key combination.
KeyDescription
Windows logo key Pressed alone, this key has the same effect as clicking on the 
Windows Start button; it launches the Start menu. It can also be 
used with other keys to provide a variety of functions:
+ Tab (Activates the next Taskbar button)
+  E (Opens the My Computer window)
+ F1 (opens Help and Support)
+  F (opens the Find: All Files dialog box)
+  M (minimizes all windows)
j + Windows icon  + M (undoes the minimize all windows 
action)
  
+ R (opens the Run dialog box)
Application key This key has the same effect as clicking the right mouse button; it 
opens the application’s context menu.
yyp p
Key Description
Tab
E
F
M
Shift M
R 
						

							Chapter 119
Your  computer provides the following hot keys:
NOTE: When activating hotkeys, press and hold the Fn key before pressing the other key in the hotkey 
combination.
Special Keys
You can locate the Euro symbol and US dollar sign at the upper-centerand/or bottom-right of your keyboard. 
To  t y p e :
Hot KeyFunctionDescription
Fn-F1 Hot key help Displays help on hot keys.
Fn-F2 eSetting Launches the eSetting in the 
Fn-F3 ePowerManagement (ePM) Launches the ePowerManagement in the eManager 
set by the Acer Empowering Key “e”
Fn-F4 Sleep Puts the computer in Sleep mode.
Fn-F5 Display toggle Switches display output between the display screen, 
external monitor (if connected) and both the display 
screen and external monitor.
Fn-F6 Screen blank Turns the display screen backlight off to save power. 
Press any key to return.
Fn-F7 Touchpad toggle Turns the internal touchpad on and off.
Fn-F8 Speaker toggle Turns the speakers on and off
Fn+wVolume up Increases the speaker volume.
Fn+yVolume down Decreases the speaker volume.
Fn+xBrightness up Increases the screen brightness.
Fn+zBrightness down Decreases the screen brightness.
Fn
Hot key Icon Function Description
Fn Esc
Fn F5
Fn En
d
Fn Pg
Up
Fn Pg
Dn
Fn
Fn
Note for US keyboard users:
Start Control Panel
Regional and Language Options
Language Details
ADD United States-
International OK
OK
Alt Gr
Note 
						

							20Chapter 1
The Euro symbol
1.Open a text editor or word processor.
2.Either directly press the Euro symbol at the bottom-right of the keyboard, or hold Alt Gr and then press 
the Euro symbol at the upper-center of the keyboard.
The US dollar sign
1.Open a text editor or word processor.
2.Either directly press the dollar sign at the bottom-right of the keyboard, or hold Shift and then press the 
dollar sign at the upper-center of the keyboard. 
						

							Chapter 121
Using System Utilities
Acer eManager
Innovative Acer eManagement software is designed for easy access to frequently used functions. At the press 
of Acer Empowering Key, the Acer eManager user interface appears, featuring four main settings -- Acer 
eSetting, Acer ePresentation, Acer ePowerManagement and Acer eRecovery.
IconItemDescription
Acer eSetting It is an easy way to manage the settings and security 
of your PC.
Acer ePresentation It takes the hassle out of making presentations.
Acer 
ePowerManagementIt provides a central location from where to control all 
your PC’s power schemes and maximise battery life.
Acer eRecovery It backs up your files preventing data loss in the 
event of a system crash.“Launch keys” on page 20
Acer eSetting
Acer ePresentation
Acer ePowerManagement
Acer eRecovery
“Launch keys” on page 20
Acer eSetting
Acer ePresentation
Acer ePowerManagement
Acer eRecovery
“Launch keys” on page 20
Acer eSetting
Acer ePresentation
Acer ePowerManagement
Acer eRecovery
“Launch keys” on page 20
Acer eSetting
Acer ePresentation
Acer ePowerManagement
Acer eRecovery 
						

							22Chapter 1
Launch Manager
Launch Manager allows you to set the two launch keys located above the keyboard. 
You can access the Launch Manager by clicking on Start, All Programs, and then Launch Manager to start
the application.
Start
All Programs Launch Manager 
						

							Chapter 123
Hardware Specifications and Configurations
Processor
ItemSpecification
CPU type
Intel
® Pentium® M Processor at 1.5 ~2.13 GHz or higher
Intel
® Celeron® M Processor at 1.3~1.5 GHz or higher
CPU package  uFPGA 478
CPU core voltage Depend on DVI
CPU I/O voltage 1.2V
System Board Major Chips
ItemController
System core logic
Intel® 915PM / ICH6-M 
Intel
® 915GM / ICH6-M 
Super I/O controller KBC (97551), LPC interface
Audio controller Conexant Codec
Video controller ATI M24P 
UMA
Hard disk drive controller ICH6-M
Keyboard controller KBC 97551
IrDA controller SIO 87383
DVI controller CH7307
PCMCIA/ card reader / 1394 
controllerTI PCI7411
DDR-soDIMM controller 915PM/915GM
BIOS
ItemSpecification
BIOS vendor Phoenix 
BIOS Version Phoenix First BIOS 
BIOS ROM type Flash ROM
BIOS ROM size 512KB 
BIOS package 32 lead of TSSOP
BIOS password control Set by setup manual
L2 Cache
Item
Cache controller Built-in CPU
Cache size 2 MB
1st level cache control Always enabled
2nd level cache control Always enabled
Cache scheme control Always enabled 
						

							24Chapter 1
 
.
. System Memory
ItemSpecification
Memory controller 915PM/915GM
Memory size 256MB/512MB
DIMM socket number 2
Supports memory size per slot 1024 MB
Supports maximum memory size 2GB 
Supports DIMM type DDRII SDRAM standard 
Supports DIMM Speed 400/533 MHz
Supports DIMM voltage 1.8V
Memory module combinations You can install memory modules in any combinations as long as 
they match the above specifications.
LAN Interface
ItemSpecification
Supports LAN protocol 10/100 Mbps Fast Ethernet connection
LAN connector type RJ45
Wireless LAN InviLink. 802.11b/g dual-band tri-mode Wireless
or 802.11 a/b/g dual-band tri-mode Wireless
LAN connector location Right side
Modem/Bluetooth  Interface
ItemSpecification
Data modem data baud rate (bps) 56K ITU 
Supports modem/bluetooth 
protocolV.90/V.92 AC-Link modem with PTT approval
Wake-on-Ring ready
Modem connector type RJ11
Modem connector location Right side
VGA
NoticeDiscreteUMA
Chipset for suitable VGA type Intel (R) 915PM Intel (R) 915GM
USB Port
ItemSpecification
USB compliancy level 2.0
OHCI USB 2.0
Number of USB port 3
Location Right Side *2
Front Side *1