Acer Aspire 5540 Service Guide

Chapter 15
Bottom View
NOTE: This is engineering sample. The image above may not be exactly the same as the real main board you 
get.
1 USB2 USB port 13 ODD1 ODD Connector
2 USB3 USB port 14 WIN1 Wireless LAN Card Slotr
3 USB4 USB port 15 DM1 DIMM Slot1
4 LAN1 RJ11+RJ45 (Modem Port+ Ethernet 
Port)16 DM3 DIMM Slot2
5MDCW
1Modem Cable Connector 17 U44 Keyboard Controller (RE144B)
6 CRT1 External Display Port 18 U49 BIOS ROM
7 MDC Modem Board Connector 19 U32 Audio Codec (Realtek ACL883)
8 U41 CPU Socket...

6Chapter 1
Jumper Settings
PINDescription
Pin1-Pin5 On Clear Password
Pin2-Pin6 On NC
Pin3-Pin7 On KBC_MATRIX1
Pin4-Pin8 On KBC_MATRIX2 

Chapter 17
Your Acer Notebook tour
After knowing your computer features, let us show you around your new Aspire computer.
#IconItemDescription
1 Display screen Also called LCD (liquid-crystal display), 
displays computer output.
2 Status indicators Light-Emitting Diodes (LEDs) that light up 
to show the status of the computer’s 
functions and components.
3 Keyboard For entering data into your computer.
4 Touchpad Touch-sensitive pointing device which 
functions like a computer mouse.
5 Click buttons...

8Chapter 1
Closed Front View
#IconItemDescription
1
Bluetooth
® 
communication button/
indicatorPress to enable/disable Bluetooth function. 
Lights to indicate the status of Bluetooth-
communications (for selected models).
2 Wireless 
communication button/
indicatorPress to enable/disable Wireless function. 
Lights to indicate the status of wireless 
LAN communications (for selected 
models).
3 Infrared port Interfaces with infrared devices (e.g., 
infrared printer and IR-aware computer) 
(for Aspire...

Chapter 19
Left View
#IconItemDescription
1 Kensington lock slot Connects to a Kensington-compatible 
computer security lock.
2 Optical drive Internal optical drive; accepts CDs or 
DVDs. (Some models have slot-in ODD 
module. The picture displays tray-in ODD 
module ). 
3 Optical disk access 
indicatorLights up when the optical drive is active.
4 Optical drive eject 
buttonEjects the optical disk from the drive.
5 Emergency eject hole Ejects the optical drive tray when the 
computer is turned off.
6 PC...

10Chapter 1
Right View
Rear Panel
#IconItemDescription
1 Three USB 2.0 ports Connect to USB 2.0 devices (e.g., USB 
mouse, USB camera).
2 S-video/TV-out 
(NTSC/PAL) portConnects to a television or display device 
with S-video input (for Aspire 5560).
3 Ventilation slots Enable the computer to stay cool, even 
after prolong use.
4 Modem (RJ-11) port Connects to a phone line.
5 Ethernet (RJ-45) Connects to an Ethernet 10/100/1000-
based network (1000 Mbps for Aspire 
5560).
6 4-pin IEEE 1394 port Connects...

Chapter 111
Bottom Panel
Indicators
The computer has four easy-to-read status indicators on the upper-right above the keyboard, and four on the 
front panel.
External display 
(VGA) portConnects to a display device(e.g., 
external monitor, LCD projector).
Battery Powers the computer
#ItemDescription
1 Battery lock Locks the battery in position.
2 Cooling fan Helps keep the computer cool.
Note: Do not cover or obstruct the opening 
of the fan.
3 Hard disk bay Houses the computer’s hard disk (secured 
with...

12Chapter 1
The power, battery and wireless communication status indicators are visible even when the LCD display is 
closed.
IconFunctionDescription
Cap lock Lights when Cap Lock is activated
Num lock Lights when Num Lock is activated.
HDD Indicates when the hard disc or optical 
drive is active.
Bluetooth Indicates the status of Bluetooth 
communication.
Wireless LAN Indicates the status of wireless LAN 
communication.
Battery Lights up when the battery is being 
charged.
Power Lights up when the...

Chapter 113
NOTE: 1. Charging: The light shows amber when the battery is charging. 2. Fully charged: The light shows 
green when in AC mode.
Easy-Launch Buttons
Located above the keyboard are four buttons. These buttons are called easy-launch buttons. They are: mail 
Web browser, Empowering Key “ “and one user-programmable button.
Press “  “ to run the Acer Empowering Technology. The mail and Web browser buttons are pre-set to email 
and Internet programs, but can be reset by users. To set the Web...

14Chapter 1
TMove your finger across the touchpad (2) to move the cursor. 
TPress the left (1) and right (4) buttons located beneath the touchpad to perform 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 (3) 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....