Acer Aspire 1420pt Service Guide

Chapter 111
Windows Keys
The keyboard has two keys that perform Windows-specific functions.
KeyDescription
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 
functions:
: Open or close the Start menu
 + : Display the desktop
 + : Open Windows Explore
 + : Search for a file or folder
 + : Lock your computer (if you are connected to a network domain), or 
switch users (if...

12Chapter 1
Hot Keys
The computer employs hotkeys or key combinations to access most of the computers controls like screen 
brightness and volume output.
To activate hotkeys, press and hold the  key before pressing the other key in the hotkey combination.
HotkeyIconFunctionDescription
 +  Power management Launch Windows power management.
 +  System Properties Display the System Properties dialog box.
 +  Bluetooth 
communication switchEnables/disables the Bluetooth function.
 +  Sleep Puts the computer...

Chapter 113
Special Keys
You can locate the Euro symbol and the US dollar sign at the upper-center and/or bottom-right of your 
keyboard.
The Euro symbol
1.Open a text editor or word processor.
2.Hold  and then press the  key at the upper-center of the keyboard.
NOTE: Some fonts and software do not support the Euro symbol. See www.microsoft.com/typography/faq/
faq12.htm for more information.
The US dollar sign
1.Open a text editor or word processor.
2.Hold  and then press the  key at the upper-center of...

14Chapter 1
Hardware Specifications and Configurations
Processor
Processor Specifications
CPU Fan True Value Table
Throttling 50%: On = 88°C; Off = 85°C
EC shut down at 95°C; H/W shut down at 98°C
North Bridge Specifications
ItemSpecification
CPU type Intel Penryn SFF (ULV)
CPU package  Micro-FCBGA 956 balls
Features • Supports Intel architecture with Dynamic execution.
• On-die, primary 32-kB instruction cache and 32-kB write-back 
data cache.
• On-die, up to 3MB second level shared cache with advanced...

Chapter 115
South Bridge Specifications
System Memory 
Hard Disk Drive Interface
 
Features • Processor host bus supports 667/800/1066Mhz FSB support.
• Supports Dual Channel DDR3 SD-RAM at 800/1066MHz.
• Integrated SDRAM controller up to *GB (2 SODIMM support)
• DMI x2 and DMI x4 for connection between GMCH and 
ICH9M.
ItemSpecification
Chipset ICH9M SFF 
Package BGA 676 balls 
Features • Upstream accelerated Hub architecture interface for access to 
GMCH. 
• PCI Express Base Specification, Revision 1.1...

16Chapter 1
Disks221121
Spind le 
speed 
(RPM)5400
Performance Specifications
Buffer size 
8MB
InterfaceSATA
Internal 
transfer 
rate (Gbits/
sec., max)3GB/s maximum 1.5GB/s 
maximum
I/O data 
transfer 
rate
(Mbytes/
sec max)875 Mbits/s maximum 845 Mbits/s 
maximum775Mbits/s 
maximum729Mbits/s 
maximum
DC Power Requirements
Voltage
+5.0V ± 5%.
ItemSpecifications
Vendor & Model 
Name
To s h i b a
MK1655GSXTo s h i b a
MK2555GSXTo s h i b a
MK3255GSXTo s h i b a
MK5055GSX
Capacity (GB)160 250 320 500
Bytes...

Chapter 117
BIOS
LCD  11.6”Drive Format
Disks
1222
Spindle speed 
(RPM)5400
Performance Specifications
Buffer size 
8 MB
InterfaceSATA
Internal transfer 
rate (Mbits/sec, 
max)N/A
I/O data transfer 
rate
(Mbytes/sec 
max)300
DC Power Requirements
Voltage
5V ±5%
ItemSpecification
BIOS vendor Insyde
BIOS ROM type W25X16AVSSIG 
BIOS ROM size 16Mb
BIOS package 8 PIN SOIC
Supported Protocols SPI
BIOS password control Set by setup manual
ItemSpecifications
Vendor/model name AUO 
B116XW02Chi Mei 
N116B6-L02LG...

18Chapter 1
Bluetooth
Audio InterfaceElectrical Interface 1 channel 
LV D S3.3V LVDS LVDS LVDS
Viewing Angle (degree)
Horizontal (Right) / (Left)
Vertical (Upper) / (Lower)45/45
10/3045/45
20/4530/30
10/2045/45
15/35
ItemSpecification
Bluetooth Controller Foxconn T60H928.33
Features • Fully Qualified Bluetooth v2.1 with Class 2 specification RF output 
power.
• Enhanced Data Rate (EDR) compliant.
• Full Piconet and Scatternet operation.
• Integrated PIFA Antenna with better RF performance.
• USB 2.0...

Chapter 119
LAN Interface
Keyboard
Media Card Reader
ItemSpecification
LAN Chipset Atheros AR8131L
Package 48pin QFN
Features •  It is an ultra-high performance, ultralow cost, and ultra-
low power fully integrated 10/100/1000 Mbps NIC/LOM 
Ethernet.
• The AR8131L combines a 10/100/1000BASE-T GbE 
media access controller (MAC), a triplespeed Ethernet 
physical layer transceiver (PHY), and a PCI Express bus 
interface.
• The AR8131L is compliant with IEEE 802.3u 
specification for 10/100 Mbps Ethernet and...

20Chapter 1
Camera
Wireless LAN
3G Module Compliance • Complies with USB Device Class Definition for Mass 
Storage and Bulk-Transport V1.0
•  Complies with Secure Digital Card (SD) specification up 
to ver. 2.0(SDHC)
•  Complies with MultiMedia Card (MMC) specification up 
to ver. 4.2
•  Complies with Memory Stick (MS) specification up to ver. 
1.43
• Complies with Memory Stick PRO (MS_Pro) specification 
up to ver. 1.03
•  Complies with Memory Stick PRO-HG (MS PRO-HG) 
specification up to ver. 1.01
•...