Acer Aspire 5741g Service Guide

Chapter 111
Using the Keyboard
The keyboard has full-sized keys and an embedded numeric keypad, separate cursor, lock, Windows, function 
and special keys.
Lock Keys and embedded numeric keypad
The keyboard has two lock keys which you can toggle on and off.
Lock keyDescription
Caps Lock When Caps Lock is on, all alphabetic characters typed are in uppercase.
Scroll Lock When Scroll Lock is on, the contents of a text window scroll without moving the 
cursor.
Num Lock  When Num Lock is on, the embedded...

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
 + : Cycle through Sidebar gadgets
 + : Lock your computer (if you are connected to a...

Chapter 113
Hot Keys
The computer employs hotkeys or key combinations to access most of the computer’s controls like screen 
brightness, volume output and the BIOS utility.
To activate hot keys, press and hold the  key before pressing the other key in the hotkey combination.
HotkeyIconFunctionDescription
 +  Communication key Enables / disables the computers
communication devices. (Communication 
devices may vary by configuration.)
 +  Sleep Puts the computer in Sleep mode.
 +  Display toggle Switches...

14Chapter 1
Hardware Specifications and Configurations
Processor Specifications
CPU Fan True Value Table (Tj = 90)
• Throttling 50%: On=85°C, Off=72°C
• OS Shutdown: 104°C
• H/W Shutdown: 92°C
CPU Fan True Value Table (Tj = 105)
• Throttling 50%: On=100°C, Off=85°C
• OS Shutdown: 104°C
• H/W Shutdown: 92°C
ItemSpecification
CPU Intel Mobile Calpella
Graphics Integrated VGA for Arrandale 
CPU Package rPGA988A
Power 4M (Arrandale) L3 shared among all cores
On-die Cache 32KB L1 & 256K L2 for each core...

Chapter 115
Fan Acoustic Specifications
NOTE: Tone:20~399Hz refer to slope of Ecma-074, 400~20K Hz < 7 Prominence ratio,No pattern occurred on 
Prominence vs. time diagram
BIOS
System Memory 
Operation 
ModeApplicationSPL 
dBALoudness (Sone)To n e  ( d B )
Fan off Windows Idle (HDD random 
seek)N/A • 20~3.99kHz less than or 
equal to: 0.5
• 4K~20kHz less than or 
equal to: 0.0357
Fan 1 Windows Idle 28 N/A 7
Fan 2 Windows Idle, HDD spinning 31 N/A 7
Fan 3 Play Movie (read from HDD), 
Play TV (TV tuner...

16Chapter 1
Memory Combinations 
NOTE: Above table lists some system memory configurations. You may combine DIMMs with various 
capacities to form other combinations. In the above table, the configuration of slot 1 and slot 2 could be 
reversed.
Onboard LAN Supports DIMM voltage 1.5V
Slot 1Slot 2Total Memory
0MB 1024MB 1024MB
0MB 2048MB 2048MB
0MB 4096MB 4096MB
1024MB 0MB 1024MB
1024MB 1024MB 2048MB
1024MB 2048MB 3072MB
2048MB 0MB 2048MB
2048MB 1024MB 3072MB
2048MB 2048MB 4096MB
2048MB 4096MB 6144MB...

Chapter 117
Hard Disk Drive Interface
Super-Multi Drive Module
ItemSpecification
Vendor & Model 
Name
Seagate HGST Toshiba Western Digital
Capacity (MB) 160, 250, 320, 
500160, 250, 
320, 500160, 250, 
320, 500160, 250, 320, 
500, 640
Bytes per sector 512
Data heads 2-4
Drive Format
Disks 1-2
Spindle speed 
(RPM)5400
Performance Specifications
Buffer size  8 MB
Interface SATA
DC Power Requirements
Voltage 
tolerance5V ±5% 5V ±5% 5V ±5% 5V ±5%
ItemSpecification
Vendor & model 
nameHLDS GT20N Sony AD7580S...

18Chapter 1
Audio Interface
Power and Keyboard Controller Applicable disc 
formatsDVD-ROM:
4.7GB   (Single Layer)
8.5GB   (Dual Layer)
DVD-R:
3.95GB (Ver. 1.0: read only)
4.7GB (Ver. 2.0 for Authoring: read only)
4.7GB (Ver. 2.1 for General: read & write)
(DL) 8.5GB   (Ver. 3.0)
DVD-RW:
4.7GB   (Ver. 1.2/ Rev 1.0, 2.0, 3.0)
DVD-RAM: 1.46GB/side, 4.7GB/side 
(Ver. 2.2)
DVD+R: 4.7GB (Ver. 1.3)
(DL) 8.5GB   (Ver. 1.1)
DVD+RW:
4.7GB (Vol.1 Ver.1.3)
CD-ROM Mode-1 data disc
CD-ROM Mode-2 data disc 
CD-ROM XA,...

Chapter 119
Battery
ItemSpecification
6 Cell
Vendor & model name SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A
Battery Type Li-ion
Pack capacity  4400 mAh
Normal Voltage 2.2 Ah
Package configuration 3S2P 

20Chapter 1
LCD 15.6”
Card Reader
ItemSpecification
Vendor/model name AUO/CPT/CMO/Samsung/LCD/INL
Screen Diagonal (mm) 15.6 inches
Display resolution (pixels) 1366 x 768 WXGA Clare
Pixel Pitch 0.204 x 0.204
Display Mode Normal
Typical White Luminance (cd/m
2) 
(also called Brightness)220
Contrast Ratio 500 typical
Response Time (Optical Rise 
Time/Fall Time) msec8
Luminance Uniformity 1.25 max
Electrical Interface LVDS
Support Color 262K
Viewing Angle (up/down/right/
left)15/35/45/45
Temperature Range...