Release the locking latch on a Disconnect a as shown | Acer 5551G

4. Release the locking latch on A.

5. Disconnect A as shown.

6.Release the locking latch on B and remove the cable as shown.

7.Release the locking latch on C and remove the cable as shown.

8.Release the locking latch on D and remove the cable as shown.

NOTE: Avoid pulling on cables directly to prevent damage to the connectors.

NOTE: Use the pull-tabs on FFCs whenever available to prevent damage.

Chapter 3

63

Image 73

Acer 5551G, 5251 manual Release the locking latch on a Disconnect a as shown

Contents

Aspire 5251/5551G/5551 Series Service Guide Revision History III Copyright Conventions Preface Page Table of Contents Viii Troubleshooting 137 Aspire 5551G AspireMicrosoft Windows 7 Environment Test Table of Contents Chapter Features Audio Storage SubsystemStorage Optical Media Drive Power subsystem Dimensions and weightCommunication Privacy control Environment Optional Items ATI SB820M System Block Diagram Front View Your Acer Notebook tourIcon Description HDD Left View Closed Front ViewHdmi Right View Bottom View IndicatorsIcon Function Description Function Left Button Right Button Main TouchPad TouchPad Basics Lock Keys and embedded numeric keypad Using the KeyboardLock key Description Key Description Windows Keys Hotkey Icon Function Description Hot Keys Platform Specification Hardware Specifications and ConfigurationsProcessor Specifications CPU Loudness Sone Tone Mode DBA Fan Acoustic Specifications Operation ApplicationODD 4GB System Memory SpecificationMemory Combinations Slot Total Memory 0MB Wireless LAN Specification Onboard LAN SpecificationBattery Specification Cell SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A Power and Keyboard Controller Specification System Power Management Acpi mode SpecificationHard Disk Drive Interface Specification Super-Multi Drive Module LCD Display Resolutions Aspire Aspire 5551G VGA Chip SpecificationVGA Lvds LCD SpecificationOhci Card Reader Specification Audio Interface Specification Chapter Navigating the Bios Utility Bios Setup Utility Information Aspire 5251/5551G/5551 BiosParameter Description Uuid Main DisabledParameter Description Format/Option Security Disabled orParameter Description Option Clear Removing a Password Setting a Password Continue Changing a Password USB CD/DVD ROM Boot Exit Exit Saving Changes Exit Bios Flash Utilities USB CD/DVD DOS Flash UtilityPage WinFlash Utility Remove HDD Password Remove HDD/BIOS Password UtilitiesPassword UnlockHD Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Input Using DMIToolsOutput Using the LAN MAC Eeprom Utility Chapter Disassembly Requirements Machine Disassembly and Replacement Pre-disassembly Instructions Main Screw List Quantity Part Number Disassembly Process External Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Step Quantity Removing the Battery Pack Removing the SD Dummy Card Step Size Quantity Screw Type ODD Module M2.5*8 Removing the Optical Drive Module Step Size Quantity Screw Type ODD Bracket M2*3 Step Size Quantity Screw Type Logic lower door M2.5*8 Removing the Logic Lower Door Step Size Quantity Screw Type 3G Cover M2*3 Removing the 3G Cover Removing the Dimm Module Step Size Quantity Screw Type Wlan Module M2*3 Removing the Wlan Module Detach 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 Flowchart Main Unit Disassembly Process Removing the Keyboard Chapter Step Size Quantity Screw Type Removing the Upper Cover Chapter 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 Step Size Quantity Screw Type Power board M2*3 Removing the Power Board Removing the TouchPad Bracket Step Size Quantity Screw Type TouchPad Bracket M2*3 Step Size Quantity Screw Type Card Reader M2*3 Removing the Card Reader Board Removing 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 Step Size Quantity Screw Type Thermal Module M2.5*3.2 Removing the Thermal ModuleGPU Carefully lift the Thermal Module clear of the Mainboard Removing the CPU LCD Module Disassembly Flowchart LCD Module Disassembly Process Removing the LCD Assembly Chapter Step Size Quantity Screw Type LCD assembly M2.5*5 Step Size Quantity Screw Type LCD Bezel M2.5*6 Removing the LCD Bezel Removing the Camera Module Step Size Quantity Screw Type LCD Panel M2.5*5 Removing the LCD Panel Step Size Quantity Screw Type LCD Brackets M2*3 Removing the LCD Brackets and Lvds Cable Chapter Disconnect the Lvds cable from the panel Chapter Removing the Microphone Cable Page Removing the Antennas Page Replacing the Antennas LCD Module Reassembly ProcedurePage Replacing the Microphone Cable Replacing the LCD Brackets and Lvds Cable 102 Chapter Replacing the LCD Panel Place the Camera in the module Connect the camera cable Replacing the Camera Module Replacing the LCD Bezel Replacing the LCD Assembly Page 108 Chapter Replacing the CPU Main Module Reassembly Procedure Replacing 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 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 TouchPad Failure Microphone Problems Sound ProblemsSelect Set up microphone Select Repair your computer HDD Not Operating CorrectlySelect Startup Repair ODD Not Operating Correctly ODD Failure Discs Do Not Play Drive Not Detected Thermal Unit Failure Wireless Function Failure Other Failures External Mouse Failure Undetermined Problems Intermittent ProblemsDimm Post Codes Post Code Range Phase Peirecoverymediafound PEI Peienterrecoverymode PEIPeirecoverymedianotfound PEI Peirecoveryloadfiledone PEI Bdsendofbootselection BDS Bdsenumerateallbootoption BDSBdsentersetup BDS Bdsenterbootmanager BDS Smmacpienableend SMM Smmacpienablestart SMMSmmacpidisablestart SMM Smmacpidisableend SMM Top View JHDD1 PJP2PJP1 JODD1 USB/B Board Power Board For NEW85 Wlan LED CR/B Board Clearing Password Check Clearing Password Check and Bios RecoverySteps for Clearing Bios Password Check Clear Cmos Jumper Bios Recovery Boot Block Bios Recovery by Crisis DiskBios Recovery Hotkey Steps for Bios Recovery from USB Storage FRU Field Replaceable Unit List Main Assembly Aspire 5251/5551G/5551 Exploded DiagramsDescription Acer P/N Base Assembly Antenna Wlan Main LED AssemblyAntenna Wlan AUX Aspire 5251/5551G/5551 FRU List Screw List Chapter 167 Aspire Appendix a Memory Chip Media Extra SW1 Card Reader Wireless ProcessorModel Acer Part No Memory Emea Aspire 5551GChina AAP TWN Gctwn Madisonpr 1G-DDR3 SO2GBIII10 VGA ChipWxgag Wxgag DDR3 Parkxt 2GB HDD 1GB AS5551G LX.PUU01.003 N320GB5.4 N832G32Mn LX.PUU01.001 AS5551G LX.PUS01.003 NBDCB4 AS5551G LX.PUS02.014 EME Acla AS5551 LX.PTQ02.021 UMA SO2GBIII13B UMA SO2GBIII10 UMA SO1GBIII10 Ksbr SO1GBIII13 AS5551 LX.PTQ02.016 AS5551 LX.PWK02.002 McAfee 1-Build 3rd WiFi N332G32Mn 2x2 BGN Appendix a 186 Appendix B Test Compatible Components Microsoft Windows 7 Environment Test BatteryVendor Type Description Adapter Vendor Type Description N15.6WXGAG Toshiba Digi MK3265GSX Sata 8MB LF F/WGJ002JNLED15.6WXGAG NLED15.6WXGAGB InnoluxKingston SO1GBIII13BR NB Chipset Bluetooth Vendor Type Description WiFi AntennaWireless LAN Audio Codec 23707801 3rd WiFi BG Foxconn Wirelss LAN Atheros HB95BG HM Appendix C Online Support Information 196 Index Removing 72, 73, 75 199 200