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...

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...

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...

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...

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...

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...

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...

24Chapter 1