Acer Aspire 2420 Service Guide

Chapter 11
Features
Below is a brief summary of the computer’s many feature:
Platform
For Aspire 2920
Intel® Centrino® Duo mobile processor technology, featuring:
Intel® Core™2 Duo mobile processor T7300/T7500/T7700/T7800 (4 MB L2 cache, 2/2.20/2.40/2.60 
GHz, 800 MHz FSB), T5250/T5450/T5550/T7100/T7250 (2 MB L2 cache, 1.50/1.66/1.83/1.80/2 GHz, 
800 MHz FSB), supporting Intel® 64 architecture
Mobile Intel® GM965 Express Chipset
Intel® Wireless WiFi Link 4965AGN (dual-band quad-mode...

2Chapter 1
MPEG-2/DVD hardware-assisted capability (acceleration)
WMV9 (VC-1) and H.264 (AVC) acceleration
S-video/TV-out (NTSC/PAL) support
AcerArcade™, featuring Acer CinemaVision™ and Acer ClearVision™ technologies
Storage subsystem
80/120/160/250 GB or larger hard disk drive
Optical drive options:
DVD-Super Multi double-layer drive
DVD/CD-RW combo drive
5-in-1 card reader, supporting Secure Digital™ (SD), MultiMediaCard (MMC), Memory Stick® (MS), 
Memory Stick PRO™ (MS PRO), xD-Picture Card™...

Chapter 13
I/O Ports
ExpressCard™/54 slot
5-in-1 card reader (SD™, MMC, MS, MS PRO, xD)
Three USB 2.0 ports
External display (VGA) port
S-video/TV-out (NTSC/PAL) port
Headphone/speaker/line-out jack
Microphone-in jack
Ethernet (RJ-45) port
Modem (RJ-11) port
DC-in jack for AC adapter
Environment
Temperature:
Operating: 5 °C to 35 °C
Non-operating: -20 °C to 65 °C
Humidity (non-condensing):
Operating: 20% to 80%
Non-operating: 20% to 80% 

4Chapter 1
System Block Diagram
KBC
28
WPC8763LWinbond
INT.KB
TouchPad
29 29
X4 DMIHOST BUS
DDR2
CLK GEN.
667/[email protected]
400MHz
533/667 MHz
3
4, 5
6,7,8,9,10,11 12,13
16,17,18,19
Intel GM965/GL960
ICH8M Mobile CPU
2.0G : 71.MEROM.A0U
2.33G : 71.MEROM.B0U
CodecALC268
MIC In
Merom 479
Celeron M
RTM875T-605 71.00875.C0W
(ICS 9LPRS502 71.09502.B0W)
6 PCIe ports
abgn/bg
PATA
HDD
21
CDROM
LPC BUS
Mini Card
DDR2533/667 MHz
12,13
533/667MHz
AGTL+ CPU I/F
LVDS, CRT I/F
PCIex1
INTEGRATED GRAHPICSDDR Memory I/F...

Chapter 15
Your Acer Notebook tour
After knowing your computer features, let us show you around your new TravelMate computer.
Front View
IconItemDescription
1 Microphone Internal microphone for sound recording.
2 Display screen Also called Liquid-Crystal Display (LCD), 
displays computer output.
3 Empowering key Lanuch Acer Empowering Technology
4 Status indicators Light-Emitting Diodes (LEDs) that light up to 
show the status of the computers functions and 
components. 
5 Keyboard For entering data into...

6Chapter 1
Closed Front View
Left View
9 Status indicators Light-Emitting Diodes (LEDs) that light up to 
show the status of the computers functions and 
components. 
10 Acer Crystal Eye Web camera for video communication.
(for selected models)
11 Easy-launch 
buttonButtons for launching frequently used program. 
12 Power button Turns the computer on and off.
IconItemDescription
1 Microphone-in 
jackAccepts input from external microphones.
2 Headphones/
speaker/line-out 
jackConnects to audio line-out...

Chapter 17
Right View
Rear View
IconItemDescription
1 Optical drive Internal optical drive; accepts CDs or DVDs.
2 Optical disk 
access indicatorLights up when the optical drive is active.
3 Optical drive eject 
buttonEjects the optical disk from the drive. 
4 Emergency eject 
holeEjects the optical drive tray when the computer is 
turned off.
5 USB 2.0 port Connect to USB 2.0 devices (e.g., USB mouse, 
USB camera).
6 Ethernet (RJ-45) 
portConnects to an Ethernet 10/100-based network.
7 Modem (RJ-11)...

8Chapter 1
Bottom View
IconItemDescription
1 Battery bay Houses the computers battery pack.
2 Battery release 
latchReleases the battery for removal.
3 Battery lock Locks the battery in position.
4Memory 
compartmentHouses the computers main memory.
5 Hard disk bay Houses the computers hard disk (secured with 
screws). 
6 Ventilation slots 
and cooling fanEnable the computer to stay cool, even after 
prolonged use.
Note: Do not cover or obstruct the opening of the 
fan. 

Chapter 19
Indicators
The computer has several easy-to-read status indicators:
The front panel indicators are visible even when the computer cover is closed.
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 beside the keyboard are application buttons. These buttons are called easy-launch buttons. They are: 
WLAN, Internet, email, Bluetooth, Arcade and Acer Empowering Technology.
The mail and Web...

10Chapter 1
Touchpad Basics
The following teaches you how to use the touchpad:
Move your finger across the touchpad (2) to move the cursor.
Press the left (1) and right (3) 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. 
IconFunctionDescription
Empowering 
Te c h n o l o g yLaunch Acer Empowering Technology.
(user-programmable)...