Acer Aspire One Model Nav Service Guide

Chapter 111
Using the Keyboard
Your NAV50 has a close-to-full-sized keyboard and an embedded numeric keypad, separate cursor, lock, 
function and special keys.
Lock Keys and embedded numeric keypad
The keyboard has three lock keys which you can toggle on and off.
The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters 
located on the upper right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols 
are not printed on the...

12Chapter 1
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...

Chapter 113
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
 +  Hotkey help Displays help on hotkeys.
 +  Acer eSettings 
ManagementLaunches Acer eSettings Management in Acer 
Empowering Technology. 
 +  Acer ePower 
ManagementLaunches Acer ePower Management in Acer 
Empowering...

14Chapter 1
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...

Chapter 115
Hardware Specifications and Configurations
Processor
Processor Specifications
CPU Fan True Value Table
• Throttling 50%: On= 95°C; OFF=80°C
• OS shut down at 100°C; H/W shut down at 90°C
ItemSpecification
CPU type Intel® Pineview-M (N450, N470) Processor
CPU package  Micro-FCBGA8 packaging
Core Logic • Intel 945GSE Express chipset
• ICH7M Intel 82801GBM
• On die 512-kB, 8-way L2 cache
Chipset • Tiger Point Chipset (NM10)
• ENE KB926 for Keyboard Controller, Battery management 
Unit, and RTC....

16Chapter 1
System Memory 
System Storage
Hard Disk Drive Interface
ItemSpecification
Memory controller Built in
Memory size 512MB or 1GB DDR2 RAM (if 2Gb die support is available)
DIMM socket number 1
Supports memory size per socket 2 GB
Supports maximum memory size 2 GB
Supports DIMM type DDR II 533Mhz SDRAM memory interface design
Supports DIMM Speed 533Mhz SDRAM
ItemSpecification
HDD • 9.5mm height, 2.5 HDD
• Easily removable no more than two screws
• SATA bus
• 160/250GB and above
• 5400 rpm
• SATA...

Chapter 117
Hard Disk Drive Interface (cont.)
 BIOS
LED 10.1” 
ItemSpecification
Vendor & Model Name
Toshiba MK1652GSX Toshiba MK1655GSX
Capacity (GB) 160 160
Bytes per sector 512
Data heads 2 2
Drive Format
Disks 1 1
Spindle speed (RPM) 5400 5400
Performance Specifications
Buffer size (MB) 8 8
Interface SATA SATA
Fast data transfer rate (Mbits/
sec, max)400 - 794 typical 395 - 952 typical
Media data transfer rate
(Gbytes/sec max)33
DC Power Requirements
Voltage tolerance 5V ±5% 5V ±5%
ItemSpecification...

18Chapter 1
Audio Codec and Amplifier
LAN Interface
KeyboardPixel Pitch (mm) 0.2175 
Typical White Luminance (cd/m
2) 
also called Brightness200
Contrast Ratio 500:1
Response Time (Optical Rise 
Time/Fall Time) msec10
Typical Power Consumption 
(watt)2.5
Weight (without inverter) 180
Physical Size (mm) 235.5 x 143.5 x 5.2 
Electrical Interface LVDS
Viewing Angle (degree)
Horizontal (Right) CR = 10 (Left)
Vertical (Upper) CR = 10 (Lower)45/45
20/45
ItemSpecification
Audio 
ControllerREALTEK ALC272X-GR...

Chapter 119
Camera
3G Card
Wireless LAN
Battery Internal & external keyboard work 
simultaneouslyPlug USB keyboard to the USB port directly: Yes
Features • 2.0+/- 3mm full stroke keys
• Phantom key auto detect
• Overlay numeric keypad
• Support independent pgdn/pgup/pgup/home/end keys
• Support reverse T cursor keys
• Factory configurable different languages by OEM 
customer
ItemSpecification
Vendor and model Suyin Camera Rosa
Liteon Camera Lily
Type 0.3M LDV
ItemSpecification
Features • 3G card in...

20Chapter 1