Model Country Acer Part No Description | eMachines D720 instruction

Model	RO	Country	Acer Part No	Description

eMD520-	AAP	Malaysia	LX.N090C.013	eMD520-571G12Mi LINPUSeMY1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Thailand	LX.N090C.006	eMD520-571G12Mi LINPUSeTH1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Vietnam	LX.N090C.005	eMD520-571G12Mi LINPUSeVN1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Australia/New	LX.N090Y.017	eMD520-571G12Mi VHB32eTAU1 UMAC
571G12Mi		Zealand		1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	New Zealand	LX.N090Y.013	eMD520-571G12Mi VHB32eTNZ1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Singapore	LX.N090Y.012	eMD520-571G12Mi VHB32eTSG1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Singapore	LX.N090Y.014	eMD520-571G12Mi VHB32eTSG1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_ZH31

eMD520-	AAP	India	LX.N090Y.011	eMD520-571G12Mi VHB32eTIN1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Indonesia	LX.N090Y.015	eMD520-571G12Mi EM VHB32eTID1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Indonesia	LX.N090Y.010	eMD520-571G12Mi EM VHB32eTID1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_ID21

eMD520-	AAP	Philippines	LX.N090Y.016	eMD520-571G12Mi EM VHB32eTPH1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Malaysia	LX.N090Y.009	eMD520-571G12Mi EM VHB32eTMY1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	AAP	Thailand	LX.N090Y.008	eMD520-571G12Mi EM VHB32eTTH1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_TH21

eMD520-	AAP	Vietnam	LX.N090Y.007	eMD520-571G12Mi EM VHB32eTVN1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_EN11

eMD520-	PA	Canada	LX.N090C.004	eMD520-571G12Mi LINPUSeCA1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN31

eMD520-	PA	USA	LX.N090C.003	eMD520-571G12Mi LINPUSeUS1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN31

eMD520-	PA	ACLA-	LX.N090C.002	eMD520-571G12Mi LINPUSeXC1 UMAC
571G12Mi		Portuguese		1*1G/120/6L/CB_bg_0.3D_EN61

eMD520-	PA	ACLA-Spanish	LX.N090C.001	eMD520-571G12Mi LINPUSeEA3 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN61

eMD520-	PA	Canada	LX.N090Y.005	eMD520-571G12Mi VHB32eTCA2 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_FR31

eMD520-	PA	USA	LX.N090Y.004	eMD520-571G12Mi VHB32eTUS1 UMAC
571G12Mi				1*1G/120/6L/CB_bg_0.3D_EN31

eMD520-	PA	ACLA-	LX.N090Y.006	eMD520-571G12Mi EM VHB32eTXC1
571G12Mi		Portuguese		UMAC 1*1G/120/6L/CB_bg_0.3D_XC21

eMD520-	PA	ACLA-	LX.N090Y.003	eMD520-571G12Mi EM VHB32eTXC2
571G12Mi		Portuguese		UMAC 1*1G/120/6L/CB_bg_0.3D_XC21

eMD520-	PA	ACLA-Spanish	LX.N090Y.002	eMD520-571G12Mi EM VHB32eTEA3
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_ES21

eMD520-	PA	ACLA-Spanish	LX.N090Y.001	eMD520-571G12Mi EM VHB32eTEA1
571G12Mi				UMAC 1*1G/120/6L/CB_bg_0.3D_ES21

eMD520-	AAP	Thailand	LX.N090C.017	eMD520-171G12Mi LINPUSeTH1 UMAC
171G12Mi				1*1G/120/6L/CB_bg_0.3D_AN_EN11

Appendix A

146

Image 156

eMachines D720 manual Model Country Acer Part No Description

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 Your Acer Notebook tour Front ViewIcon 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 Euro symbol Special KeyUS dollar sign Using the System Utilities Acer GridVista dual-display compatible Hardware Specifications and Configurations Processor SpecificationICH9-M System Memory Specification LAN Interface SpecificationWireless Module 802.11b/g Specification Memory Combinations Slot Total Memory Hard Disk Drive Interface Specification 8MBSata 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 Power EmttmDTS 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 Module Disassembly Process External Modules Disassembly FlowchartScrew List Step Quantity Removing the Battery Pack Removing the Lower Covers Wlan HDDStep 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 Removing the Upper Cover Step Size Quantity Screw Type Upper Cover M2.5*8Step 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 Main Module Reassembly Procedure Replacing the CPUReplacing the Thermal Module Replacing the CPU Fan Module Replacing the MainboardAlign 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 Wlan Module Replacing the Dimm ModulesInsert 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 Microphone Problems Select Set up microphoneInternal Microphone Failure HDD Not Operating Correctly Select Repair your computerSelect 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 Intermittent Problems Undetermined 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 EMachines D720/D520 Exploded Diagrams Main AssemblyDescription 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 Appendix a EMachines D720/D520 SeriesModel 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