TouchPad Failure, Internal Speaker Failure | Acer 5251, 5551G

TouchPad Failure

If the TouchPad doesn’t work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs:

Internal Speaker Failure

If the internal Speakers fail, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs:

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Chapter 4

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Acer 5251, 5551G manual TouchPad Failure, Internal Speaker Failure

Contents

Aspire 5251/5551G/5551 Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Troubleshooting 137 Viii Microsoft Windows 7 Environment Test AspireAspire 5551G Table of Contents Features Chapter Storage Subsystem AudioStorage Optical Media Drive Dimensions and weight Power subsystemCommunication Privacy control Optional Items Environment System Block Diagram ATI SB820M Your Acer Notebook tour Front ViewIcon Description HDD Hdmi Closed Front ViewLeft View Right View Icon Function Description IndicatorsBottom View TouchPad Basics Function Left Button Right Button Main TouchPad Lock key Description Using the KeyboardLock Keys and embedded numeric keypad Windows Keys Key Description Hot Keys Hotkey Icon Function Description Hardware Specifications and Configurations Platform SpecificationProcessor Specifications CPU ODD Fan Acoustic Specifications Operation ApplicationLoudness Sone Tone Mode DBA System Memory Specification 4GBMemory Combinations Slot Total Memory 0MB Onboard LAN Specification Wireless LAN SpecificationBattery Specification Cell SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A Hard 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 Utility Aspire 5251/5551G/5551 Bios InformationParameter Description Uuid Parameter Description Format/Option DisabledMain Disabled or SecurityParameter Description Option Clear Setting a Password Removing a Password Changing a Password Continue Boot USB CD/DVD ROM Exit Exit Exit Saving Changes Bios Flash Utilities DOS Flash Utility USB CD/DVDPage WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD PasswordPassword UnlockHD Removing Bios Passwords Cleaning Bios Passwords Using Boot Sequence Selector Output Using DMIToolsInput Using the LAN MAC Eeprom Utility Chapter Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly 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 Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*8 Step Size Quantity Screw Type ODD Bracket M2*3 Removing the Logic Lower Door Step Size Quantity Screw Type Logic lower door M2.5*8 Removing the 3G Cover Step Size Quantity Screw Type 3G Cover M2*3 Removing the Dimm Module Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*3 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 Process Main Unit Disassembly Flowchart Removing the Keyboard Chapter Removing the Upper Cover Step Size Quantity Screw Type 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 Removing the Power Board Step Size Quantity Screw Type Power board M2*3 Removing 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*3 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 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 Flowchart Removing 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*6 Removing the Camera Module Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.5*5 Removing the LCD Brackets and Lvds Cable Step Size Quantity Screw Type LCD Brackets M2*3 Chapter 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 cable Replacing the LCD Bezel Replacing the LCD Assembly Page 108 Chapter Main Module Reassembly Procedure Replacing the CPU 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 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 TouchPad Failure Internal Speaker Failure Select Set up microphone Sound ProblemsMicrophone Problems Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit Failure External Mouse Failure Other Failures Dimm Intermittent ProblemsUndetermined Problems Post Code Range Phase Post Codes Peienterrecoverymode PEI Peirecoverymediafound PEIPeirecoverymedianotfound PEI Peirecoveryloadfiledone PEI Bdsenumerateallbootoption BDS Bdsendofbootselection BDSBdsentersetup BDS Bdsenterbootmanager BDS Smmacpienablestart SMM Smmacpienableend SMMSmmacpidisablestart SMM Smmacpidisableend SMM Top View PJP2 JHDD1PJP1 JODD1 Power Board USB/B Board CR/B Board For NEW85 Wlan LED Clearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Clear Cmos Jumper Bios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery from USB Storage FRU 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 Aspire Model Acer Part No Memory Media Extra SW1 Card Reader Wireless ProcessorMemory Chip Aspire 5551G EmeaChina AAP TWN Gctwn Wxgag VGA ChipMadisonpr 1G-DDR3 SO2GBIII10 Parkxt Wxgag DDR3 HDD 1GB 2GB AS5551G LX.PUU01.003 N320GB5.4 N832G32Mn LX.PUU01.001 AS5551G LX.PUS01.003 NBDCB4 AS5551G LX.PUS02.014 Acla EME AS5551 LX.PTQ02.021 UMA SO2GBIII10 UMA SO2GBIII13B UMA SO1GBIII10 SO1GBIII13 Ksbr AS5551 LX.PTQ02.016 AS5551 LX.PWK02.002 McAfee 1-Build 3rd WiFi N332G32Mn 2x2 BGN Appendix a 186 Test Compatible Components Appendix B Vendor Type Description Adapter BatteryMicrosoft Windows 7 Environment Test Vendor Type Description NLED15.6WXGAG Toshiba Digi MK3265GSX Sata 8MB LF F/WGJ002JN15.6WXGAG Innolux NLED15.6WXGAGBKingston SO1GBIII13BR NB Chipset Vendor Type Description WiFi Antenna BluetoothWireless LAN Audio Codec 23707801 3rd WiFi BG Foxconn Wirelss LAN Atheros HB95BG HM Online Support Information Appendix C 196 Index Removing 72, 73, 75 199 200