Acer Aspire 2420 Service Guide

Chapter 131
  Supports LAN protocol 10/100/1000 Mbps
LAN connector type RJ45
LAN connector location Left side
Features Integrated 10/100 BASE-T transceiver
Wake on LAN support compliant with ACPI 2.0
PCI v2.2
Bluetooth Interface
ItemSpecification
Chipset Foxconn TT60H928.11
Data throughput 723 bps (full speed data rate)
Protocol Bluetooth 1.1 (Upgradeable to Bluetooth 1.2 when SIG 
specification is ratified).
Interface USB 1.1
Connector type USB
Wireless Module 802.11b/g
ItemSpecification
Chipset Intel®...

32Chapter 1
Spindle 
speed 
(RPM)5400 RPM 5400 RPM 5400 RPM 5400 RPM
Performance Specifications
Buffer size  8MB 8MB 8MB 8MB
I n t e r f a c e S ATA S ATA S ATA S ATA
Max. media 
transfer rate 
(disk-buffer, 
Mbytes/s)540 540 540 540
Data transfer 
rate 
(host~buffer, 
Mbytes/s)100 MB/Sec.
Ultra DMA mode-5150 MB/Sec.
Ultra DMA mode-5150 MB/Sec.
Ultra DMA mode-5150 MB/Sec.
Ultra DMA mode-5
DC Power Requirements
Voltage 
tolerance5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5%
Combo Drive module...

Chapter 133
Loading mechanism Load: Manual
Release: (a) Electrical Release (Release Button)
               (b) Release by ATAPI command 
               (c) Emergency Release
Power Requirement
Input Voltage 5 V +/- 5 % (Operating) 
Super-Multi Drive module
ItemSpecification
Vendor & model name HLDS Super-Multi Drive GSA-T20N, SONY Super-Multi AD-7560A
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained:
Max 3.6Mbytes/secSustained:
Max 10.08Mbytes/sec
Buffer Memory...

34Chapter 1
  Input Voltage 5 V +/- 5 % (Operating) 
Audio Interface
ItemSpecification
Audio Controller Realtek ALC883 Azalia and Amplifier Maxim MAX9710 & 
MAX4411
Audio onboard or optional Built-in
Mono or Stereo Stereo
Resolution 18 bit stereo full duplex
Compatibility HD audio Interface; S/PDIF output for PCM or AC-3 
content
Sampling rate 1Hz resolution VSR (Variable Sampling Rate)
Internal microphone Yes
Internal speaker / Quantity Yes/2 (1.5W speakers)
Video Memory
ItemSpecification
Chipset UMA...

Chapter 135
  System Board Major Chips
Item Controller
Core logic Mobile Intel® GM965/GL960 + ICH8M Express Chipset
VGA UMA
LAN Realtek 8100SBL/CL
USB 2.0 Intel ICH8M
Super I/O controller N/A
MODEM ALC 883
Bluetooth Built-in ATI SB460
Wireless 802.11 b+g Built-in ATI SB460
PCMCIA/ 5 in 1 Card Reader ENE CB714/1410
Audio Codec Realtek ALC883
Keyboard
ItemSpecification
Keyboard controller NS PC97541V
Total number of keypads 84-/85-key
Windows logo key Yes
Internal & external keyboard work...

36Chapter 1
Display resolution (pixels) 1280 x 800 WXGA 1280 x 800 WXGA
Pixel Pitch 0.204 x 0.204 0.204 x 0.204
Pixel Arrangement R.G.B. Vertical Stripe R.G.B. Vertical Stripe
Display Mode Normally White Normally White
Typical White Luminance (cd/m
2)
also called Brightness220 typical
187 minimum185 typical
Luminance Uniformity 1.25 max. 1.25 max.
Contrast Ratio 400 typical 400 typical
Response Time (Optical Rise 
Time/Fall Time)msec12/4 12/4
Nominal Input Voltage VDD +3.3V +3.3V
Typical Power...

Chapter 137
System Power Management
ACPI modePower Management
Mech. Off (G3) All devices in the system are turned off completely.
Soft Off (G2/S5) OS initiated shutdown. All devices in the system are turned 
off completely.
Working (G0/S0) Individual devices such as the CPU and hard disc may be 
power managed in this state.
Suspend to RAM (S3) CPU set power down
VGA Suspend
PCMCIA Suspend
Audio Power Down
Hard Disk Power Down
CD-ROM Power Down
Super I/O Low Power mode
Save to Disk (S4) Also called...

38Chapter 1 

Chapter 239
BIOS Setup Utility
The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/
Output System).
Your computer is already properly configured and optimized, and you do not need to run this utility. However, if 
you encounter configuration problems, you may need to run Setup.  Please also refer to Chapter 4 
Troubleshooting when problem arises.
To activate the BIOS Utility, press F2 during POST (when “Press  to enter Setup” message is prompted 
on the...

40Chapter 2
Navigating the BIOS Utility
There are six menu options: Information, Main, Advanced, Security, Boot, and Exit.
Follow these instructions:
To choose a menu, use the left and right arrow keys.
To choose an item, use the up and down arrow keys.
To change the value of a parameter, press F5 or F6.
A plus sign (+) indicates the item has sub-items. Press Enter to expand this item.
Press Esc while you are in any of the menu options to go to the Exit menu.
In any menu, you can load default...