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Acer D255 manual Chapter

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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8.Use a plastic tool to unlock the two latches (red callouts) located above the HDD cover.

9.Remove the upper cover.

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Chapter 3

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Acer D255 manual Chapter

Page 73 Page 75

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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 Display Wireless and networkingColor options Storage subsystem Privacy control Dimensions and weightPower adapter and battery Input and control Software Eco compliance System Block Diagram DDR2 DDR3 Component Icon Description Your Notebook TourTop View Closed Front View Component Icon Description Power indicatorBattery indicator 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 Special Key Using the communication keyEuro symbol US dollar sign Processor Specifications Hardware Specifications and ConfigurationsProcessor Specification Cores Bus Mfg Cache Package Acer P/N Speed System Memory DDR3 Specification For N550 OS mode CPU Temperature Fan Speed RPM SPL Spec dBASystem Memory DDR2 Specification Video Interface Specification Bios 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 Specification LCD Inverter not present on this model Camera Specifications LCD Display Supported Resolution BitsKeyboard Controller Specification Audio Subsystem Specification 3G Module SpecificationUSB Port Specification Hdmi Port Not available on this model AC Adapter Specification Ports SpecificationSystem Board Major Chips 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 Parameter Description Option DisabledSecurity 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 Password Remove HDD/BIOS Password UtilitiesRemoving HDD Password UnlockHD Removing Bios Passwords Cleaning Bios Passwords Miscellaneous Utilities Using Boot Sequence SelectorUsing DMITools 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 General Information Pre-disassembly InstructionsDisassembly Process Main Screw List Quantity Part Number 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 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*5Page 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=0.04Page 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 CardPage 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 Internal Microphone Failure Microphone ProblemsSelect Set up microphone Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer Wireless Function Failure USB Failure 3G Function Failure Cosmetic Failure Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined Problems Memory Post CodesSec 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 Steps for Clearing Bios Password Check Clearing Password Check and Bios RecoveryClearing Password Check Description Location Bios Recovery Hotkey Bios Recovery by Crisis DiskBios Recovery Boot Block Steps for Bios Recovery from USB Storage 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 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 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 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 Software MouseNB Chipset VGA Chip Vendor Type Description WiFi Antenna Wireless LAN Online Support Information Appendix C 260 Index 262

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