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Acer
D255 manual Chapter
Models:
D255
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Specification
System Block Diagram
Dimension
Wireless and networking
Common Problems
Bios Setup Utility
Disassembly Requirements
Battery indicator
Setting a Password
Bluetooth
Page 264
Image 264
254
Chapter 3
Page 263
Page 265
Page 264
Image 264
Page 263
Page 265
Contents
Aspire One D255 Series Service Guide
Revision History
Copyright
Conventions
Preface
Page
Table of Contents
125
Jumper and Connector Locations 147
Aspire D255
Table of Contents
Features
Chapter
Wireless and networking
Color options
Display
Storage subsystem
Dimensions and weight
Power adapter and battery
Privacy control
Input and control
Software
Eco compliance
System Block Diagram
DDR2
DDR3
Your Notebook Tour
Top View
Component Icon Description
Component Icon Description Power indicator
Battery indicator
Closed Front View
Rear View
Right View
Bottom View
Touchpad Basics
Function Left Button Right Button Main TouchPad
Using the Keyboard
Lock Keys and Embedded Numeric Keypad
Windows Keys
Key Description
Hot Keys
Hotkey Icon Function Description
Using the communication key
Euro symbol
Special Key
US dollar sign
Hardware Specifications and Configurations
Processor Specification
Processor Specifications
Cores Bus Mfg Cache Package Acer P/N Speed
For N550 OS mode CPU Temperature Fan Speed RPM SPL Spec dBA
System Memory DDR2 Specification
System Memory DDR3 Specification
Video Interface Specification
Bios
LAN Interface Specification
Wireless Module 802.11b/g/Draft-N Specification
Battery Specification
Hard Disk Drive Interface Specification
Bluetooth Interface Specification
Super-Multi Drive Module Not available with this module
LCD Specification
LCD Inverter not present on this model
LCD Display Supported Resolution Bits
Keyboard Controller Specification
Camera Specifications
3G Module Specification
USB Port Specification
Audio Subsystem Specification
Hdmi Port Not available on this model
Ports Specification
System Board Major Chips Specification
AC Adapter Specification
Card Reader Specification
System LED Indicator Specification
Power Specification Legacy Acpi Mode Power Management
Chapter
Bios Setup Utility
Navigating the Bios Utility
Information
Parameter Description
Main
Parameter Description Format/Option
Disabled
Security
Parameter Description Option
Clear or Set
Setting a Password
Removing a Password
Changing a Password
Continue
Boot
USB Cdrom
Exit
Exit Saving Changes
Bios Flash Utility
DOS Flash Utility
Page
WinFlash Utility
Remove HDD/BIOS Password Utilities
Removing HDD Password
Password
UnlockHD
Removing Bios Passwords
Cleaning Bios Passwords
Using Boot Sequence Selector
Using DMITools
Miscellaneous Utilities
Using the LAN MAC Utility
Example 1 Read DMI Information from Memory
Execute MAC.BAT to write MAC information to eeprom Chapter
Using the crisis disk
Creating a USB Flash Crisis Disk
Machine Disassembly and Replacement
Disassembly Requirements
Pre-disassembly Instructions
Disassembly Process
General Information
Main Screw List Quantity Part Number
External Module Disassembly Process
External Modules Disassembly Flowchart
Screw List Step Quantity
Removing the Battery Pack
Removing the SD Dummy Card
Removing the 3G Card
Removing the Keyboard
Unlock the FPC Remove the FPC and the keyboard
Removing the Lower Door
Step Size Quantity Screw Type Lower Door M2*7
Removing the Dimm Module
Removing the HDD Module
Step Size Quantity Screw Type HDD Module M2*3
Step Size Quantity Screw Type HDD Carrier M3*3 Ni
Removing the 3G Module
Step Size Quantity Screw Type 3G Module M2*3
Removing the Wlan Module
Step Size Quantity Screw Type Wlan Module M2*3
Main Unit Disassembly Process
Main Unit Disassembly Flowchart
Removing the Upper Cover
Step Size Quantity Screw Type Upper Cover M2*7
Step Size Quantity Screw Type Lower Cover M2*5
Page
Chapter
Removing the Button Board
Step Size Quantity Screw Type Button Board M2*3 t=0.04
Removing the LED Board
Step Size Quantity Screw Type LED Board M2*3
Removing the Bluetooth Module
Removing the RTC Battery
Removing the Speaker Module
Step Size Quantity Screw Type Speakers M2*3
Removing the Mainboard
Page
Step Size Quantity Screw Type Mainboard M2*3
Page
Removing the Thermal Module
Step Size Quantity Screw Type Thermal Module M2*3
Chapter
Removing the LCD Module
Step Size Quantity Screw Type LCD Module M2*4 Ni
Remove the LCD module from the chassis
LCD Module Disassembly Process
LCD Module Disassembly Flowchart
Removing the LCD Bezel
Step Size Quantity Screw Type LCD Bezel M2*4 Ni
Removing the Camera Module
Removing the LCD Panel
Step Size Quantity Screw Type LCD Panel M2*3t=0.04
Page
Chapter
Removing the Microphone Module
Removing the LCD Brackets
Step Size Quantity Screw Type
Removing the 3G and Wlan Antennas
Chapter
LCD Module Reassembly Procedure
Replacing the 3G and Wlan Antennas
Chapter
Replacing the LCD Brackets
Replacing Microphone Module
Replacing the Lvds Cable
Step Size Quantity Screw Type LCD Panel M2*3 t=0.04
Replacing the CCD Module
Replacing the LCD Bezel
Step Size Quantity Screw Type LCD Bezel M2*4 Ni
Main Module Reassembly Procedure
Replacing the LCD Module
100 Chapter
Page
Replacing the Thermal Module
Replacing the Mainboard
Replace the two 2 screws to secure the mainboard
Page
106 Chapter
Replacing the Speakers
Replacing the RTC Battery
Replacing the Bluetooth Module
Replacing the LED Board
Replacing the Button Board
Page
Replacing the Upper Cover
Secure the upper cover to the chassis using seven 7 screws
114 Chapter
Replacing the Wlan Module
Replacing the 3G Module
Replacing the HDD Module
Step Size Quantity Screw Type HDD Module M3*3 Ni
118 Chapter
Replacing the Dimm Module
Replacing the Lower Cover
Replacing the Keyboard
Replacing the 3G Card
Replacing the Battery
Replacing the SD Dummy Card
Page
124 Chapter
Common Problems
Symptoms Verified Go To
Power On Issue
Computer Shutsdown Intermittently
No Display Issue
No Post or Video
Random Loss of Bios Settings
Abnormal Video Display
LCD Failure
Built-In Keyboard Failure
Touch Pad Failure
Internal Speaker Failure
Sound Problems
Microphone Problems
Select Set up microphone
Internal Microphone Failure
HDD Not Operating Correctly
Select Repair your computer
Select Startup Repair
Wireless Function Failure
USB Failure
3G Function Failure
Cosmetic Failure
Thermal Unit Failure
External Mouse Failure
Other Failures
Intermittent Problems
Undetermined Problems
Post Codes
Sec
Memory
Code Description
BDS & Specific action
Each Peim entry point used in 80PORT
Each Driver entry point used in 80PORT
Securitystub
Moniterkey
Each SmmDriver entry point used in 80PORT
146 Chapter
Jumper and Connector Locations
Mainboard Top View
Mainboard Bottom View DDR3 Model
Clearing Password Check and Bios Recovery
Clearing Password Check
Steps for Clearing Bios Password Check
Description Location
Bios Recovery by Crisis Disk
Bios Recovery Boot Block
Bios Recovery Hotkey
Steps for Bios Recovery from USB Storage
FRU Field Replaceable Unit List
Exploded Diagrams
Main Assembly
Description Acer P/N
Logic Lower Assembly
23.SDE02.002
60.SDE02.002
Logic Upper Assembly
55.SDE02.001
60.SDE02.001
LCD Assembly
Aspire D255 FRU List
Category Description
Cable
HDD Housing
HDD/HARD Disk Drive
160
LCD
LED LCD CMO 10.1 Wsvga Glare N101L6
ANTENNA, CCD, 3G-RED LCD Cover IMR-RED W/3G
ANTENNA, CCD, 3G-BROWN LCD Cover IMR-BROWN W/3G
LK.1010D.004 L0D LF 200NIT 10MS
ANTENNA, CCD, 3G-BLUE LCD Cover IMR-BLUE W/3G
Chapter 167
LED LCD AUO 10.1 Wsvga None Glare
ANTENNA, CCD, 3G-RED
170
Chapter 171
172
Mainboard
Heatsink
LCD GASKET-L for W/3G
Screw List
AcerPN Acer Description Screw
Appendix a
Aspire D255
Model Country Acer Part No Description
USA
Model Country Acer Part No Description
180 Chapter
Model Country Acer Part No Description
182 Chapter
USA
Acla
Model Country Acer Part No Description
186 Chapter
Model Country Acer Part No Description
188 Chapter
China
190 Chapter
Model Country Acer Part No Description
192 Chapter
USA
194 Chapter
Model Country Acer Part No Description
196 Chapter
Model Country Acer Part No Description
198 Chapter
China
200 Chapter
Model Country Acer Part No Description
202 Chapter
USA
204 Chapter
Model Country Acer Part No Description
Model Country Acer Part No BOM Name
CPU LCD
AOD255 Austria
AOD255 Germany LU.SDE0B.013 AOD255UMACkk2
AOD255 Portugal
AOD255 LU.SDE0B.073 AOD255UMACkk2
AOD255 China LU.SDE0C.001 AOD255UMACkk2
AOD255 Malaysia LU.SDF0D.011 AOD255UMACbb2
AOD255 Albania
AOD255 Germany
AOD255 Norway
AOD255 South Africa LU.SDE0D.031 AOD255UMACkk2
AOD255 S2.SDE0D.004 AOD255UMACkk2
ATMN550B
AOD255 Singapore LU.SDP0D.005 AOD255UMACcc3
AOD255 Cyprus LU.SDJ0D.038 AOD255UMACkk3
AOD255 Italy LU.SDJ0D.054 AOD255UMACkk3
AOD255 Singapore LU.SDJ0D.007 AOD255UMACkk3
LU.SDJ0D.089 AOD255UMACkk3
Model Country Acer Part No Memory
Extra SW1
LU.SDF0B.003
AOD255 Czech LU.SDE0B.077
AOD255 Middle East LU.SDE0B.006
AOD255 South Africa LU.SDE0B.047
SO2GBII6
AOD255 S2.SDF0D.002
AOD255 Philippines LU.SDN0D.004
AOD255 Belgium LU.SDE0D.075
AOD255 Hungary LU.SDE0D.049
AOD255 Portugal LU.SDE0D.055
AOD255 LU.SDE0D.045
LU.SDG0D.006
AOD255 Singapore LU.SDH0D.009
AOD255 Austria LU.SDJ0D.041
AOD255 Greece LU.SDJ0D.064
AOD255 Middle East LU.SDJ0D.084
AOD255 South Africa LU.SDJ0D.086
Model Country Acer Part No Wireless LAN1 Bluetooth
LU.SDF0B.001 3rd WiFi 1x1 BGN AOD255-2BQbb
LU.SDE0B.001 3rd WiFi 1x1 BGN AOD255-2BQkk
LU.SDE0B.004 3rd WiFi 1x1 BGN AOD255-2BQkk
LU.SDF0D.002 3rd WiFi 1x1 BGN AOD255-2DQbb
Model Country Acer Part No Wireless LAN1 Bluetooth
248 Chapter
LU.SDE0D.005 3rd WiFi 1x1 BGN AOD255-2DQkk
250 Chapter
Model Country Acer Part No Wireless LAN1 Bluetooth
252 Chapter
Model Country Acer Part No Wireless LAN1 Bluetooth
254 Chapter
Appendix B
Microsoft Windows 7 Environment Test
HDD
Mouse
NB Chipset
Software
VGA Chip
Vendor Type Description WiFi Antenna
Wireless LAN
Online Support Information
Appendix C
260
Index
262
