Acer Aspire 4720 Service Guide

							Chapter 115
Windows Keys
The keyboard has one key that performs Windows-specific functions.
KeyIconDescription
Windows 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 function:
   +  Displays the desktop.
   +  Opens the Windows Explore.
   +  Opens the Search: All Files dialog box.
   +  Cycles through Sidebar gadgets.
   +  Locks your computer (if you are 
connected to a network domain), or switch users (if 
you’re not connected to a network domain)
   +  Opens Help and Support.
   +  Minimizes all windows.
   +  Opens the Run dialog box.
   +  Cycles through programs no the taskbar.
   +  Opens Ease of Access Center.
   +  Opens Windows Mobility Center.
   +  Displays the System Properties 
dialog box
   +  +  Restores the minimized 
windows to the desktop.
   +  Activates next taskbar button.
   +  Brings all gadgets to the front 
and select Windows Sidebar.
  +   +  Searchs for computers (if you 
are on a network)
  +   +  Uses the arrow keys to cycle 
through programs on the taskbar by using Window 
Flip 3-D
Application key This key has the same effect as clicking the right 
mouse button; it opens the application’s context 
menu. 
						

							16Chapter 1
Hot Keys
The computer employs hotkeys 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 hotkey combination.
Hot KeyIconFunctionDescription
+ Hot key help Displays help on hot keys.
+ Acer eSettings Launches the Acer eSettings in Acer eManager.
+ Acer ePower 
ManagementLaunches the Acer ePower Management in Acer 
Empowering Technology. See “Acer Empowering 
Technology” on page 18.
+ Sleep Puts the computer in Sleep mode.
+ Display toggle Switches display output between the display screen, 
external monitor (if connected) and both.
+ Screen blank Turns the display screen backlight off to save power. 
Press any key to return.
+ Touchpad toggle Turns the internal touchpad on and off.
+ Speaker toggle Turns the speakers on and off.
+ Brightness up Increases the screen brightness.
+ Brightness down Decreases the screen brightness
+Play/Pause Plays or pauses the media.
+Stop Stops the media playing. 
						

							Chapter 117
Special Key
You can locate the Euro symbol and US dollar sign at the upper-center and/or bottom-right of your keyboard.
To  t y p e :
The Euro symbol
1. Open a text editor or word processor.
2.Either directly press the  symbol at the bottom-right of the keyboard, or hold  and then 
press the symbol at the upper-center of the keyboard.
NOTE: Some fonts and software do not support the Euro symbol. Please refer to www.microsoft.com/
typography/faq/faq12.htm for more information.
The US dollar sign
1.Open a text editor or word processor.
2.Either directly press the  key at the bottom-right of the keyboard, or hold  and then press the 
 key at the upper-center of the keyboard.
NOTE:  This function varies by the operating system version.
+Previous Returns to previous media file.
+ Next Jumps to next media file.
Hot KeyIconFunctionDescription 
						

							18Chapter 1
Acer Em powering Technology
Acer’s innovative Empowering Technology makes it easy for you to access frequently used functions and 
manage your new Acer notebook. It features the following handy utilities: 
TAcer eNet Management hooks up to location-based networks intelligently.
TAcer ePower Management extends battery power via versatile usage profiles.
TAcer eAudio Management allows you to easily control the enhanced sound effects of Dolby® Home 
Theater™ on your system.
TAcer ePresentation Management connects to a projector and adjusts display settings conveniently.
TAcer eDataSecurity Management protects data with passwords and advanced encryption algorithms.
TAcer eLock Management limits access to external storage media.
TAcer eRecovery Management backs up and recovers data flexibly, reliably and completely.
TAcer eSettings Management accesses system information and adjusts settings easily.
For more information, press the < > key to launch the Empowering Technology toolbar, then click on the 
appropriate utility and select the Help or Tutorial function.
Em powering Technology password
Before using Acer eLock Management and Acer eRecovery Management, you must initialize the Empowering 
Technology password. Right-click on the Empowering Technology toolbar and select “Password Setup” to do 
so. If you do not initialize the Empowering Technology password, you will be prompted to do so when running 
Acer eLock Management or Acer eRecovery Management for the first time. 
						

							Chapter 119
Acer eNet Management 
Acer eNet Management helps you to quickly and easily connect to both wired and wireless networks in a 
variety of locations. To access this utility, either click on the “Acer eNet Management” icon on your notebook, 
or start the program from the Start menu. You also have the option to set Acer eNet Management to start 
automatically when you boot up your PC.
Acer eNet Management automatically detects the best settings for a new location, while offering you the 
freedom to manually adjust the settings to match your needs.
Acer eNet Management can save network settings for a location to a profile, and automatically switch to the 
appropriate profile when you move from one location to another. Settings stored include network connection 
settings (IP and DNS settings, wireless AP details, etc.), as well as default printer settings. 
Security and safety concerns mean that Acer eNet Management does not store username and password 
information. 
						

							20Chapter 1
Acer ePower Management 
Acer ePower Management features a straightforward user interface. To launch it, select Acer ePower 
Management from the Empowering Technology interface.
AC Mode (Adapter mode)
The default setting is “Maximum Performance.” You can adjust CPU speed, LCD brightness and other 
settings, or click on buttons to turn the following functions on/off: Wireless LAN, Bluetooth, CardBus, FireWire 
(1394), Wired LAN and Optical Device if supported.
DC Mode (Battery mode)
There are three pre-defined profiles - Balanced, Power Saver, and High Performance. You can also define the 
power plan optimized for your needs.
To create new power plan
1.   Select a predefined power plan and click the “ “ icon shown on the lower left-hand side.
2.Enter the name for the newly created power plan.
3.Select one of the predefined power plan that is closest to what you want.
4.Change the display and sleep settings as desired.
5.Click “OK“ to apply the setting.
6.A new power plan is created. 
						

							Chapter 121
Battery status
For real-time battery life estimates based on current usage, refer to the time shown in the “Remaining Battery 
Life” field.
For additional power options, click “More Power option”. 
						

							22Chapter 1
Acer eAudio Management 
Acer eAudio Management allows you to easily control the enhanced sound effects of Dolby® Home Theater™ 
on your system. Select Movie or Game mode to experience the awesome realism of 5.1-channel surround 
sound from just 2 speakers, via Dolby Virtual Speaker technology. Music mode lets you enjoy your favorite 
tunes, in vivid detail. 
						

							Chapter 123
Acer ePresentation Management 
Acer ePresentation Management lets you project your computer’s display to an external device or project 
using the hot key: Fn + F5. If auto-detection hardware is implemented in the system, your system display will 
be automatically switched out when an external display is connected to the system.
Acer eDataSecurity Management 
Acer eDataSecurity Management is handy file encryption utility that protects your files from being accessed by 
unauthorized persons. It is conveniently integrated with Windows explorer as a shell extension for quick and 
easy data encryption/decryption and also supports on-the-fly file encryption for MSN Messenger and Microsoft 
Outlook. 
The Acer eDataSecurity Management setup wizard will prompt you for a supervisor password and default 
encryption. This encryption will be used to encrypt files by default, or you can choose to enter your won file-
specific password when encrypting a file.
NOTE: The password used encrypt a file is the unique key that the system needs to decrypt it. If you lose the 
password, the supervisor password is the only other key capable of decrypting the file. If you lose both 
passwords, there will be no way to decrypt your encrypted file! Be sure to safeguard all related 
passwords! 
						

							24Chapter 1