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Acer 5251, 5551G manual Replacing the Upper Cover

Models: 5251 5551G 5551

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Replacing the Upper Cover

1.Place the Upper Cover on the Lower Cover as shown and press all sides are firmly in place.

2.Secure the seven (7) screws on the Upper Cover as shown.

124

Chapter 3

Image 134

Acer 5251, 5551G manual Replacing the Upper Cover

Contents

Aspire 5251/5551G/5551 Series Service Guide Revision History Copyright IIIConventions Preface Page Table of Contents Troubleshooting 137 ViiiMicrosoft Windows 7 Environment Test AspireAspire 5551G Table of Contents Features ChapterStorage Storage SubsystemAudio Optical Media DriveCommunication Dimensions and weightPower subsystem Privacy controlOptional Items EnvironmentSystem Block Diagram ATI SB820MIcon Description Your Acer Notebook tourFront View HDDHdmi Closed Front ViewLeft View Right View Icon Function Description IndicatorsBottom View TouchPad Basics Function Left Button Right Button Main TouchPadLock key Description Using the KeyboardLock Keys and embedded numeric keypad Windows Keys Key DescriptionHot Keys Hotkey Icon Function DescriptionProcessor Specifications Hardware Specifications and ConfigurationsPlatform Specification CPUODD Fan Acoustic Specifications Operation ApplicationLoudness Sone Tone Mode DBA Memory Combinations Slot Total Memory System Memory Specification4GB 0MBBattery Specification Cell Onboard LAN SpecificationWireless LAN Specification SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009AHard Disk Drive Interface Specification System Power Management Acpi mode SpecificationPower and Keyboard Controller Specification Super-Multi Drive Module VGA VGA Chip SpecificationLCD Display Resolutions Aspire Aspire 5551G Ohci LCD SpecificationLvds Card Reader Specification Audio Interface Specification Chapter Bios Setup Utility Navigating the Bios UtilityParameter Description Aspire 5251/5551G/5551 BiosInformation UuidParameter Description Format/Option DisabledMain Parameter Description Option Disabled orSecurity ClearSetting a Password Removing a PasswordChanging a Password ContinueBoot USB CD/DVD ROMExit Exit Exit Saving ChangesBios Flash Utilities DOS Flash Utility USB CD/DVDPage WinFlash Utility Password Remove HDD/BIOS Password UtilitiesRemove HDD Password UnlockHDRemoving Bios Passwords Cleaning Bios PasswordsUsing Boot Sequence Selector Output Using DMIToolsInput Using the LAN MAC Eeprom Utility Chapter Machine Disassembly and Replacement Disassembly RequirementsPre-disassembly Instructions Disassembly Process Main Screw List Quantity Part NumberScrew List Step Quantity External Module Disassembly ProcessExternal Modules Disassembly Flowchart Removing the Battery Pack Removing the SD Dummy Card Removing the Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*8Step Size Quantity Screw Type ODD Bracket M2*3 Removing the Logic Lower Door Step Size Quantity Screw Type Logic lower door M2.5*8Removing the 3G Cover Step Size Quantity Screw Type 3G Cover M2*3Removing the Dimm Module Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*3Detach the Wlan Board from the Wlan socket Chapter Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3*3 Main Unit Disassembly Process Main Unit Disassembly FlowchartRemoving the Keyboard Chapter Removing the Upper Cover Step Size Quantity Screw TypeChapter Release the locking latch on a Disconnect a as shown Step Size Quantity Screw Type Upper Cover M2.5*5 Removing the Left Speaker Module Lift the Speaker clear of the Upper Cover Removing the Right Speaker Module Lift the Right Speaker Module clear of the device Removing the Power Board Step Size Quantity Screw Type Power board M2*3Removing the TouchPad Bracket Step Size Quantity Screw Type TouchPad Bracket M2*3 Removing the Card Reader Board Step Size Quantity Screw Type Card Reader M2*3Removing the USB Board Lift the USB board clear of the device Removing the Bluetooth Board Removing the Mainboard Step Size Quantity Screw Type Mainboard M2.5*5 Chapter Page Disconnect the Bluetooth to mainboard cable GPU Removing the Thermal ModuleStep Size Quantity Screw Type Thermal Module M2.5*3.2 Carefully lift the Thermal Module clear of the Mainboard Removing the CPU LCD Module Disassembly Process LCD Module Disassembly FlowchartRemoving the LCD Assembly Chapter Step Size Quantity Screw Type LCD assembly M2.5*5 Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*6Removing the Camera Module Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.5*5Removing the LCD Brackets and Lvds Cable Step Size Quantity Screw Type LCD Brackets M2*3Chapter Disconnect the Lvds cable from the panel Chapter Removing the Microphone Cable Page Removing the Antennas Page LCD Module Reassembly Procedure Replacing the AntennasPage Replacing the Microphone Cable Replacing the LCD Brackets and Lvds Cable 102 Chapter Replacing the LCD Panel Replacing the Camera Module Place the Camera in the module Connect the camera cableReplacing the LCD Bezel Replacing the LCD Assembly Page 108 Chapter Main Module Reassembly Procedure Replacing the CPUReplacing the Thermal Module Connect the fan cable Chapter 111 Replacing the Mainboard Page 114 Chapter Replacing the Bluetooth Board Replacing the USB Board Page Replacing the Card Reader Board Replacing the TouchPad Bracket 120 Chapter Replacing the Power Board Replacing the Right Speaker Module Replacing the Left Speaker Module Replacing the Upper Cover Page 126 Chapter Replacing the Keyboard Replacing the Hard Disk Drive Module Replacing the Wlan Module Replacing the Dimm Modules Replacing the 3G Cover Replacing the Logic Lower Door Replacing the ODD Module Replacing the SD Dummy Card Replacing the Battery 136 Chapter Common Problems Symptoms Verified Go ToPower On Issue Computer Shutsdown IntermittentlyNo Display Issue No Post or VideoRandom Loss of Bios Settings Abnormal Video DisplayLCD Failure Built-In Keyboard FailureTouchPad Failure Internal Speaker FailureSelect Set up microphone Sound ProblemsMicrophone Problems Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer ODD Failure ODD Not Operating CorrectlyDiscs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit FailureExternal Mouse Failure Other FailuresDimm Intermittent ProblemsUndetermined Problems Post Code Range Phase Post CodesPeirecoverymedianotfound PEI Peienterrecoverymode PEIPeirecoverymediafound PEI Peirecoveryloadfiledone PEIBdsentersetup BDS Bdsenumerateallbootoption BDSBdsendofbootselection BDS Bdsenterbootmanager BDSSmmacpidisablestart SMM Smmacpienablestart SMMSmmacpienableend SMM Smmacpidisableend SMMTop View PJP1 PJP2JHDD1 JODD1Power Board USB/B BoardCR/B Board For NEW85 Wlan LEDSteps for Clearing Bios Password Check Clearing Password Check and Bios RecoveryClearing Password Check Clear Cmos JumperBios Recovery Hotkey Bios Recovery by Crisis DiskBios Recovery Boot Block Steps for Bios Recovery from USB StorageFRU Field Replaceable Unit List Description Acer P/N Aspire 5251/5551G/5551 Exploded DiagramsMain Assembly Base Assembly Antenna Wlan AUX LED AssemblyAntenna Wlan Main Aspire 5251/5551G/5551 FRU List Screw List Chapter 167 Appendix a AspireModel Acer Part No Memory Media Extra SW1 Card Reader Wireless ProcessorMemory Chip China Aspire 5551GEmea AAPTWN Gctwn Wxgag VGA ChipMadisonpr 1G-DDR3 SO2GBIII10 Parkxt Wxgag DDR3HDD 1GB 2GBAS5551G LX.PUU01.003 N320GB5.4 N832G32Mn LX.PUU01.001 AS5551G LX.PUS01.003 NBDCB4 AS5551G LX.PUS02.014 Acla EMEAS5551 LX.PTQ02.021 UMA SO2GBIII10 UMA SO2GBIII13BUMA SO1GBIII10 SO1GBIII13 KsbrAS5551 LX.PTQ02.016 AS5551 LX.PWK02.002 McAfee 1-Build 3rd WiFi N332G32Mn 2x2 BGN Appendix a 186 Test Compatible Components Appendix BVendor Type Description Adapter BatteryMicrosoft Windows 7 Environment Test Vendor Type Description NLED15.6WXGAG Toshiba Digi MK3265GSX Sata 8MB LF F/WGJ002JN15.6WXGAG Kingston InnoluxNLED15.6WXGAGB SO1GBIII13BRNB Chipset Wireless LAN Vendor Type Description WiFi AntennaBluetooth Audio Codec23707801 3rd WiFi BG Foxconn Wirelss LAN Atheros HB95BG HM Online Support Information Appendix C196 Index Removing 72, 73, 75 199 200