Chapter | eMachines D720 instruction

5.Lift the rear edge of the TouchPad bracket first to clear the securing clips and remove the it as shown.

IMPORTANT:The TouchPad board is integrated into the design of the Upper Cover. To replace the TouchPad board, remove all components from the Upper Cover and install an entirely new Upper Cover.

IMPORTANT:The MOSFET pad is attached to the Upper Cover and is reusable. If the replacement Upper Cover does not have a MOSFET pad (see highlighted area below), remove the MOSFET pad from the replaced Upper Cover and stick it to the new Upper Cover.

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Chapter 3

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eMachines D720 manual Chapter

Contents

EMachines D720/D520 Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents 107 Viii Model Definition and Configuration 142 Table of Contents Features Chapter Power subsystem CommunicationPrivacy control Special keys and controls System Block Diagram Front View Your Acer Notebook tourIcon Description Closed Front View Rear ViewHDD Icon Description Latch Locks and releases the lid Left View Right View Bottom View Indicators Icon Function Description TouchPad Basics with fingerprint reader 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 Euro symbolUS dollar sign Using the System Utilities Acer GridVista dual-display compatible Processor Specification Hardware Specifications and ConfigurationsICH9-M System Memory Specification LAN Interface SpecificationWireless Module 802.11b/g Specification Memory Combinations Slot Total Memory 8MB Hard Disk Drive Interface SpecificationSata Super-Multi Drive Module Specification Audio Interface SpecificationKeyboard Specification System Board Major Chips Controller Battery Specification LCD Specification Bios Setup Utility Navigating the Bios Utility Information Parameter Description Main Parameter Description Format/Option Advanced Parameter Description Submenu ItemsLAN IDE IGD TV USB AspmURR FER Disabled or SecurityParameter Description Option Clear or Set Setting a Password Removing a Password Changing a Password Emttm PowerDTS Acpi S3 Boot IDE0 Hitachi HTS542516K9SA00 Exit Exit Saving Changes Bios Flash Utilities DOS Flash Utility USB HDD ABC USB CdromPage WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD Password Key in biospw 14452 Removing Bios Passwords Cleaning Bios Passwords Chapter Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List Quantity Part Number External Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Step Quantity Removing the Battery Pack Wlan HDD Removing the Lower CoversStep Size Quantity Screw Type Memory Cover M2.5*8 Remove the Wlan cover as shown Removing the Dimm Modules Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*L3 Chapter Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3*3 Removing the Optical Drive Module Step Size Quantity Screw Type ODD Module M2.5*5 Step Size Quantity Screw Type ODD Bracket M2*L3 Main Unit Disassembly Process Removing the Switch Cover Step Size Quantity Screw Type Switch Cover M2.5*5 Chapter Removing the Keyboard Removing the Antenna Page Removing the LCD Module Step Size Quantity Screw Type LCD Module M2.5*8 Step Size Quantity Screw Type Step Size Quantity Screw Type Upper Cover M2.5*8 Removing the Upper CoverStep Size Quantity Screw Type Upper Cover M2.5*5 Disconnect a as shown Chapter Removing the TouchPad Bracket Step Size Quantity Screw Type TouchPad Bracket M2*L3 Chapter Removing the Speaker Modules Remove the Speaker Modules from the upper cover Removing the Power Board Removing the Modem Module Step Size Quantity Screw Type Modem Module M2*L3 Removing the Main Board Step Size Quantity Screw Type Mainboard M2.5*5 Chapter Removing the CPU Fan Step Size Quantity Screw Type Mainboard M2.5*4 Removing the Thermal Module Step Size Quantity Screw Type Thermal Module M2.5*6.5 Removing the CPU LCD Module Disassembly Process Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*5 Removing the Inverter Board Step Size Quantity Screw Type Inverter Board M2.5*5 Removing the Camera Module Step Size Quantity Screw Type Camera Module M2*L3 Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2.5*5 Removing the LCD Brackets and FPC Cable Step Size Quantity Screw Type LCD Brackets M2*L3 Removing the Antennas Removing the MIC Module LCD Module Reassembly Procedure Replacing the LCD PanelPage Chapter Page Replacing the LCD Bezel Replacing the CPU Main Module Reassembly ProcedureReplacing the Thermal Module Replacing the Mainboard Replacing the CPU Fan ModuleAlign the Fan Module on the screw brackets Replacing the Modem Module Replacing the Power Board Replacing the Speaker Module Chapter Replacing the TouchPad Bracket Replacing the Upper Case Chapter Replacing the LCD Module Chapter Replacing the Antenna Cable Replacing the Keyboard Replacing the Switch Cover Replacing the ODD Module Replacing the Hard Disk Drive Module Place the HDD in the HDD carrier Replacing the Dimm Modules Replacing the Wlan ModuleInsert the Wlan board into the Wlan socket Replacing the Lower Covers Replace the Memory Cover Replace the Wlan Cover Replacing the Battery 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 Sound Problems Select Set up microphone Microphone ProblemsInternal Microphone Failure Select Repair your computer HDD Not Operating CorrectlySelect Startup Repair ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected Wireless Function Failure Modem Function Failure Thermal Unit Failure External Mouse Failure Other Failures Undetermined Problems Intermittent ProblemsDimm Post Codes SecMemory Code Description BDS & Specific action Each Peim entry point used in 80PORT Each Driver entry point used in 80PORT CF9RESET BootpriorityFvbservice Smbios Legacybios LegacybiosplatformSetuputility Fwblockservice Each SmmDriver entry point used in 80PORT Top View Bottom View Clearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Hardware Open Gap Description Bios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery from USB Storage FRU Field Replaceable Unit List Main Assembly EMachines D720/D520 Exploded DiagramsDescription Acer P/N LCD Panel EMachines D720/D520 FRU List Category Description Acer Part No CPU/ProcessorMulti Drive Combo Drive Keyboard Assy LCD Module 14.1 IN. Wxga Glare W/ANTENNA CCD LCD Panel G 14.1 Wxga AUO B141EW04LCD Panel G 14.1 Wxga Samsung LTN141W3-L01-J LCD Panel G 14.1 Wxga CMO N141I3-L02 Screw List Chapter 141 EMachines D720/D520 Series Appendix aModel Country Acer Part No Description China AAP TWN Gctwn Model Country Acer Part No Description CPU LCD Appendix a 148 571G12Mi 4KS 149 Appendix a 150 571G12Mi 4KS 151 Appendix a 152 Test Compatible Components Appendix B Microsoft Windows Vista Environment Test Vendor Type Description CPU TestIntel Mvpqs Vendor Type Description HDD Test LAN Test Vendor Type Description LCD Test Modem TestNorthbridge Chipset Test ODD Test Southbridge Chipset Test Wlan Test 160 Online Support Information Appendix C 162 Index 164