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Acer D255 manual

Models: D255

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Specifications System Block Diagram Bluetooth Password Euro symbol Wireless and networking Dimension Common Problems Bios Setup Utility Jumper and Connector Locations

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5.Disconnect the DC-In cable from the connector.

6.Pull the microphone grounding wire from the LAN casing.

7.Disconnect the microphone cable from the connector.

Chapter 3

73

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Acer D255 manual

Page 82 Page 84

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Contents

Aspire One D255 Series Service Guide Revision History Copyright Conventions Preface Page Table of Contents 125 Aspire D255 Jumper and Connector Locations 147 Table of Contents Chapter Features Storage subsystem Wireless and networkingColor options Display Input and control Dimensions and weightPower adapter and battery Privacy control Eco compliance Software DDR2 System Block Diagram DDR3 Component Icon Description Your Notebook TourTop View Rear View Component Icon Description Power indicatorBattery indicator Closed Front View Right View Bottom View Function Left Button Right Button Main TouchPad Touchpad Basics Lock Keys and Embedded Numeric Keypad Using the Keyboard Key Description Windows Keys Hotkey Icon Function Description Hot Keys US dollar sign Using the communication keyEuro symbol Special Key Cores Bus Mfg Cache Package Acer P/N Speed Hardware Specifications and ConfigurationsProcessor Specification Processor Specifications System Memory DDR3 Specification For N550 OS mode CPU Temperature Fan Speed RPM SPL Spec dBASystem Memory DDR2 Specification Bios Video Interface Specification Battery Specification LAN Interface SpecificationWireless Module 802.11b/g/Draft-N Specification Super-Multi Drive Module Not available with this module Hard Disk Drive Interface SpecificationBluetooth Interface Specification LCD Inverter not present on this model LCD Specification Camera Specifications LCD Display Supported Resolution BitsKeyboard Controller Specification Hdmi Port Not available on this model 3G Module SpecificationUSB Port Specification Audio Subsystem Specification Card Reader Specification Ports SpecificationSystem Board Major Chips Specification AC Adapter Specification Power Specification Legacy Acpi Mode Power Management System LED Indicator Specification Chapter Navigating the Bios Utility Bios Setup Utility Parameter Description Information Parameter Description Format/Option Main Clear or Set DisabledSecurity Parameter Description Option Removing a Password Setting a Password Continue Changing a Password USB Cdrom Boot Exit Saving Changes Exit Bios Flash Utility DOS Flash Utility Page WinFlash Utility UnlockHD Remove HDD/BIOS Password UtilitiesRemoving HDD Password Password Cleaning Bios Passwords Removing Bios Passwords Miscellaneous Utilities Using Boot Sequence SelectorUsing DMITools Example 1 Read DMI Information from Memory Using the LAN MAC Utility Execute MAC.BAT to write MAC information to eeprom Chapter Creating a USB Flash Crisis Disk Using the crisis disk Disassembly Requirements Machine Disassembly and Replacement Main Screw List Quantity Part Number Pre-disassembly InstructionsDisassembly Process General Information Screw List Step Quantity External Module Disassembly ProcessExternal Modules Disassembly Flowchart 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 Step Size Quantity Screw Type Lower Door M2*7 Removing the Lower Door Removing the Dimm Module Step Size Quantity Screw Type HDD Module M2*3 Removing the HDD Module Step Size Quantity Screw Type HDD Carrier M3*3 Ni Step Size Quantity Screw Type 3G Module M2*3 Removing the 3G Module Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*3 Main Unit Disassembly Flowchart Main Unit Disassembly Process Removing the Upper Cover Step Size Quantity Screw Type Lower Cover M2*5 Step Size Quantity Screw Type Upper Cover M2*7Page Chapter Removing the Button Board Step Size Quantity Screw Type Button Board M2*3 t=0.04 Step Size Quantity Screw Type LED Board M2*3 Removing the LED Board 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 Step Size Quantity Screw Type Thermal Module M2*3 Removing the Thermal Module 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 Flowchart LCD Module Disassembly Process Step Size Quantity Screw Type LCD Bezel M2*4 Ni Removing the LCD Bezel Removing the Camera Module Step Size Quantity Screw Type LCD Panel M2*3t=0.04 Removing the LCD PanelPage Chapter Removing the Microphone Module Step Size Quantity Screw Type Removing the LCD Brackets Removing the 3G and Wlan Antennas Chapter Replacing the 3G and Wlan Antennas LCD Module Reassembly Procedure 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 LCD Bezel Replacing the CCD Module Step Size Quantity Screw Type LCD Bezel M2*4 Ni Replacing the LCD Module Main Module Reassembly Procedure 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 Bluetooth Module Replacing the RTC Battery 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 Step Size Quantity Screw Type HDD Module M3*3 Ni Replacing the HDD Module 118 Chapter Replacing the Lower Cover Replacing the Dimm Module Replacing the Keyboard Replacing the 3G Card Replacing the SD Dummy Card Replacing the BatteryPage 124 Chapter Symptoms Verified Go To Common Problems Computer Shutsdown Intermittently Power On Issue No Post or Video No Display Issue Abnormal Video Display Random Loss of Bios Settings Built-In Keyboard Failure LCD Failure Internal Speaker Failure Touch Pad Failure Sound Problems Internal Microphone Failure Microphone ProblemsSelect Set up microphone Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer USB Failure Wireless Function Failure 3G Function Failure Cosmetic Failure External Mouse Failure Thermal Unit Failure Other Failures Undetermined Problems Intermittent Problems Code Description Post CodesSec Memory BDS & Specific action Each Driver entry point used in 80PORT Each Peim entry point used in 80PORT Securitystub Moniterkey Each SmmDriver entry point used in 80PORT 146 Chapter Mainboard Top View Jumper and Connector Locations Mainboard Bottom View DDR3 Model Description Location Clearing Password Check and Bios RecoveryClearing Password Check Steps for Clearing Bios Password Check Steps for Bios Recovery from USB Storage Bios Recovery by Crisis DiskBios Recovery Boot Block Bios Recovery Hotkey FRU Field Replaceable Unit List Description Acer P/N Exploded DiagramsMain Assembly 60.SDE02.002 Logic Lower Assembly23.SDE02.002 60.SDE02.001 Logic Upper Assembly55.SDE02.001 LCD Assembly Category Description Aspire D255 FRU List 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 AcerPN Acer Description Screw Screw List Model Country Acer Part No Description Appendix aAspire D255 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 CPU LCD Model Country Acer Part No BOM Name 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 Extra SW1 Model Country Acer Part No Memory 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 Microsoft Windows 7 Environment Test Appendix B HDD VGA Chip MouseNB Chipset Software Wireless LAN Vendor Type Description WiFi Antenna Appendix C Online Support Information 260 Index 262

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