Acer Aspire 5540 Service Guide

							Chapter 135
Pack capacity  4000 mAH for Sanyo (6cell) 2.0
3920 mAH Sony (6cell) 2.0
3900 mAH Panasonic (6cell) 2.0
4800 mAH Snayo (6cell) 2.4
4800 mAH Sony (6cell) 2.4
4800 mAH Panasonic (6cell)2.4
Sanyo (9cell) 2.4
Number of battery cell 6/9
Package configuration 3 cells in series, 2 series in parallel
3 cells in series, 3 series in parallel
Normal voltage 14.8V
Charge voltage 16.8+-0.2v
LCD 14.1” inch
ItemSpecification
Vendor & model name AU B141EW01 CMO N141I1-
L02QDI 
QD14TL01-03SAMSUNG 
LTN141W1-L01
Screen Diagonal (mm) 14.1 inches 14.1 inches 14.1 inches 14.1 inches
Active Area (mm) 304.1x228.1 304.1x228.1 304.1x228.1
Display resolution (pixels) 1024x768 XGA 1024x768 XGA 1024x768 XGA
Pixel Pitch 0.297x0.2970.099x0.297 0.297x0.297
Pixel Arrangement R.G.B. Vertical 
StripeR.G.B. Vertical 
StripeR.G.B. Vertical 
Stripe
Display Mode Normally White Normally White Normally White
Typical White Luminance (cd/m
2)
also called Brightness180 (5 point 
average)
150 (5 point 
average)160 150
Luminance Uniformity N/A N/A 70
Contrast Ratio 300 300 250
Response Time (Optical Rise Time/Fall 
Time)msec24/11
15/358/17 10/25
Nominal Input Voltage VDD +3.3V Typ. +3.3V 3.3V
Typical Power Consumption (watt) 5.6/5.7 3.96 N/A
Weight 550 570 600
Physical Size(mm) 317.3x242.0x6.
0317.3x242.0x5.
9317.3x242.0x6.
5
Electrical Interface 1 channel LVDS 1 channel LVDS 1 channel LVDS
Support Color 262K colors 
(RGB 6-bit data 
driver)262,144 262,144
Viewing Angle (degree)
Horizontal: Right/Left
Vertial: Upper/Lower40/40
10/3045/45
15/3540/40
20/40
Temperature Range( C)
Operating
Storage (shipping)0 to +50
-20 to +600 to +50
-25 to +600 to +50
-20 to +60
Battery
ItemSpecification
° 
						

							36Chapter 1
LCD Inverter
ItemSpecification
Vendor & model name Darfon/V189-301GP
Brightness conditions N/A
Input voltage (V) 9~21
Input current (mA) 2.56 (max)
Output voltage (V, rms) 780V (2000V for kick off)
Output current (mA, rms) 6.5 (max)
Output voltage frequency (k Hz) 65K Hz (max)
AC Adaptor
ItemSpecification
Input rating 90V AC to 264V AC, 47Hz to 63Hz
Maximum input AC current 1.7A
Inrush current  220A@115VAC
220A@230VAC
Efficiency 82% min. @115VAC input full load
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 Hibernation Mode. System saves all system states and 
data onto the disc prior to power off the whole system. 
						

							Chapter 237
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 
m during POST (when “Press  to enter Setup” message is prompted 
on the bottom of screen).
Press m to enter setup. The default parameter of F12 Boot Menu is set to “disabled”. If you want to change 
boot device without entering BIOS Setup Utility, please set the parameter to “enabled”. 
Press  during POST to enter multi-boot menu. In this menu, user can change boot device without 
entering BIOS SETUP Utility.
PhoenixBIOS Setup Utility 
 
 
  
CPU Type :   Intel (R) Core (TM) Duo processor T2300         
CPU Speed  :
System BIOS Ver:
 V1.03
 
VGA BIOS Ver
 1227
KBC Ver
 1.23
 
Serial Numberxxxxxxxxxxxxxxxxxxxxxx
 
Asset Tag Number
 N/A
 
Produce Name
 Aspire 5540/5560
 
Manufacturer Name:
 Acer
 
UUID:
 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 
 
  
  
 
 
 
F1  Help        ↑↓ Select Item         F5/F6 Change Values             F9 Setup Defaults 
Esc Exit         ← →  Select Menu        Enter  Select   4Sub-Menu      F10 Save and Exit
  HDD Model Name :
   HDD Serial Number :
 ST96812A - (PM)
  PIONEER DVD-RW DVR-K16RA
 
22 Byte
32 Byte
16 Byte
16 Byte
32 Byte 1660MHz
ATAPI Serial Number :None ATAPI Model Name :None                 Main            Advanced            Security          Boot           Exit
Information
System Utilities
Chapter  2 
						

							38Chapter 2
Navigating the BIOS Utility
There are six menu options: Info., Main, System Devices, Security, Boot, and Exit.
Follow these instructions:
TTo choose a menu, use the cursor left/right keys (zx).
TTo choose a parameter, use the cursor up/down keys ( wy).
TTo change the value of a parameter, press por q.
TA plus sign (+) indicates the item has sub-items. Press e to expand this item.
TPress ^ while you are in any of the menu options to go to the Exit menu.
TIn any menu, you can load default settings by pressing t. You can also press u to save any 
changes made and exit the BIOS Setup Utility.
NOTE: You can change the value of a parameter if it is enclosed in square brackets. Navigation keys for a 
particular menu are shown on the bottom of the screen. Help for parameters are found in the Item 
Specific Help part of the screen. Read this carefully when making changes to parameter values. Please 
note that system information is subject to different models. 
						

							Chapter 239
Information
NOTE: The system information is subject to different models.
ParameterDescription
CPU Type This field shows the CPU type and speed of the system.
IDE1 Model Name This field shows the model name of HDD installed on primary IDE master.
IDE1 Serial Number This field displays the serial number of HDD installed on primary IDE master.
IDE2I Model Name This field displays the mofel name of devices installed on secondary IDE master. The hard 
disk drive or optical drive model name is automatically detected by the system.
IDE2 Serial Number This field shows the serial number of devices installed on secondary IDE master.
System BIOS ver Displays system BIOS version.
VGA BIOS Ver This field displays the VGA firmware version of the system.
KBC Ver This field shows the keyboard 
Serial Number This field displays the serial number of this unit.
Asset Tag Number This field displays the asset tag number of the system.
Product Name This field shows product name of the system.
Manufacturer Name This field displays the manufacturer of this system.
UUID Number This will be visible only when an internal LAN device is presenting.
UUID=32bytes
PhoenixBIOS Setup Utility 
 
 
  
CPU Type :   Intel (R) Core (TM) Duo processor T2300         
CPU Speed  :
System BIOS Ver:
 V1.03
 
VGA BIOS Ver
 1227
KBC Ver
 1.23
 
Serial Numberxxxxxxxxxxxxxxxxxxxxxx
 
Asset Tag Number
 N/A
 
Produce Name
 Aspire 5540/5560
 
Manufacturer Name:
 Acer
 
UUID:
 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 
 
  
  
 
 
 
F1  Help        ↑↓ Select Item         F5/F6 Change Values             F9 Setup Defaults 
Esc Exit         ← →  Select Menu        Enter  Select   4Sub-Menu      F10 Save and Exit
  HDD Model Name :
   HDD Serial Number :
 ST96812A - (PM)
  PIONEER DVD-RW DVR-K16RA
 
22 Byte
32 Byte
16 Byte
16 Byte
32 Byte 1660MHz
ATAPI Serial Number :None ATAPI Model Name :None                 Main            Advanced            Security          Boot           Exit
Information 
						

							40Chapter 2
Main
The Main screen displays a summary of your computer hardware information, and also includes basic setup 
parameters. It allows the user to specify standard IBM PC AT system parameters.
NOTE: The screen above is for your reference only. Actual values may differ.
PhoenixBIOS Setup Utility 
   Information      
Main            Security       Boot       Exit 
 
  
Item Specific Help 
System Time: [09:03:49] 
System Date: [11/29/2005] 
  
System Memory:  640 KB 
Extended Memory:  510 MB 
Video Memory [128MB]
  
Quiet Boot: [Enabled] 
Power on display: [Auto ] 
Network boot
 [Enabled]
 
   F12 Boot Menu
  [Disabled]
 
  
, , or 
 selects field. 
 
F1  Help       ↑↓ Select Item          F5/F6 Change Values             F9 Setup Defaults 
Esc Exit        ← →  Select Menu      Enter  Select   4Sub -Menu      F10 Save and Exit  
Shows system base memory size
Shows extended memory size
VGA memory size
D2D Recovery
[Enabled]
   
						

							Chapter 241
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: The sub-items under each device will not be shown if the device control is set to disable or auto. This is 
because the user is not allowed to control the settings in these cases.
ParameterDescriptionFormat/Option
System Time Sets the system time. The hours are displayed 
with 24-hour format.Format: HH:MM:SS 
(hour:minute:second) System Time
System Date Sets the system date. Format MM/DD/YYYY (month/day/
year)
System Date
System Memory This field reports the memory size of the system. 
Memory size is fixed to 640MB
Extended Memory This field reports the memory size of the 
extended memory in the system. 
Extended Memory size=Total memory size-1MB
VGA Memory Shows the VGA memory size. VGA Memory 
size=64/128MB
Quiet Boot Determines if Customer Logo will be displayed or 
not; shows Summary Screen is disabled or 
enabled. 
Enabled: Customer Logo is displayed, and 
Summary Screen is disabled.
Disabled: Customer Logo is not displayed, and 
Summary Screen is enabled. Option: 
Enabled or Disabled
Power on display Auto: During power process, the system will 
detect if any display device is connected on 
external video port. If any external display device 
is connected, the power on display will be in CRT 
(or projector) only mode. Otherwise it will be in 
LCD only mode.
Both: Simultaneously enable both the integrated 
LCD screen and the system’s external video port 
(for an external CRT or projector).Option: 
Auto or Both
Network Boot Enables, disables the system boot from LAN 
(remote server).Option: 
Enabled or Disabled
F12 Boot Menu Enables, disables Boot Menu during POST.
Option: 
Disabled or Enabled
D2D Recovery Enables, disables D2D Recovery function. The 
function allows the user to create a hidden 
partition on hard disc drive to store operation 
system and restore the system to factory 
defaults.Option: 
Enabled or Disabled 
						

							42Chapter 2
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.
PhoenixBIOS Setup Utility 
     Information       MainBoot
 
 
Item Specific Help 
User Password is : Clear 
Supervisor Password is : Clear
Set User Password
Set Supervisor Password
  
Password on Boot[Disabled]
 
  
 
Supervisor Password 
controls accesses of the 
whole setup utility. 
It can be used to 
boot up when Password 
on boot is enabled. 
 
F1  Help       ↑↓ Select Item          F5/F6 Change Values             F9 Setup Defaults 
Esc Exit        ← →  Select Menu      Enter  Select   4Sub-Menu      F10 Save and Exit  
[Enter]
[Enter]Exit
Security
Primary HardDisk Security[Disabled] 
						

							Chapter 243
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: When you are prompted to enter a password, you have three tries before the system halts. Don’t forget 
your password. If you forget your password, you may have to return your notebook computer to your 
dealer to reset it.
Setting a Password
Follow these steps as you set the user or the supervisor password:
1.Use the w andy keys to highlight the Set Supervisor Password parameter and press the e key. The 
Set Supervisor Password box appears:
2.Type a password in the “Enter New Password” field. The password length can not exceeds 8 
alphanumeric characters (A-Z, a-z, 0-9, not case sensitive). Retype the password in the “Confirm New 
Password” field.
IMPORTANT:Be very careful when typing your password because the characters do not appear on the screen.
3.Press e.
                After setting the password, the computer sets the User Password parameter to “Set”.
4.If desired, you can opt to enable the Password on boot parameter.
5.When you are done, press u to save the changes and exit the BIOS Setup Utility.
Removing a Password
Follow these steps:
ParameterDescriptionOption
User Password is Shows the setting of the user password.
Clear or Set
Supervisor Password is Shows the setting of the Supervisor password
Clear or Set
Set User Password Press Enter to set the user password. When 
user password is set, this password protects 
the BIOS Setup Utility from unauthorized 
access. The user can enter Setup menu only 
and does not have right to change the value of 
parameters.
Set Supervisor Password Press Enter to set the supervisor password. 
When set, this password protects the BIOS 
Setup Utility from unauthorized access. The 
user can not either enter the Setup menu nor 
change the value of parameters.
Primary HardDisk Security Enables or disables primary hard disk security 
function. 
Password on Boot Defines whether a password is required or not 
while the events defined in this group 
happened. The following sub-options are all 
requires the Supervisor password for changes 
and should be grayed out if the user password 
was used to enter setup.
Disabled or Enabled 
						

							44Chapter 2
1.Use the w and y keys to highlight the Set Supervisor Password parameter and press the e key. The 
Set Password box appears:
2.Type the current password in the Enter Current Password field and press e.
3.Press e twice without typing anything in the Enter New Password and Confirm New Password fields. 
The computer then sets the Supervisor Password parameter to “Clear”.
4.When you have changed the settings, press u to save the changes and exit the BIOS Setup Utility.
Changing a Password
1.Use the w and y keys to highlight the Set Supervisor Password parameter and press the e key. The 
Set Password box appears:
2.Type the current password in the Enter Current Password field and press e.
3.Type a password in the Enter New Password field. Retype the password in the Confirm New Password 
field.
4.Press e. After setting the password, the computer sets the User Password parameter to “Set”.
5.If desired, you can enable the Password on boot parameter.
6.When you are done, press u to save the changes and exit the BIOS Setup Utility.
If the verification is OK, the screen will display as following. 
The password setting is complete after the user presses u.
If the current password entered does not match the actual current password, the screen will show you the 
Setup Warning.