System Specification 1 Features 1 Your Acer Notebook Tour 4 Front View 4 Closed Front View 5 Left View 6 Right View 7 Rear Panel 7 Bottom Panel 8 Indicators 9 Easy-launch Buttons 10 MediaTouch Keys 11 Touchpad 12 Touchpad Basics 12 Using the Keyboard 14 Lock Keys and Embedded Numeric Keypad 14 Windows Keys 15 Hotkeys 16 Special Keys 17 Acer Empowering Technology 18 Empowering Technology Password 18 Acer eNet Management 19 Acer ePower Management 21 Acer eAudio Management 23 Acer ePresentation Management 24 Acer eDataSecurity Management 25 Acer eLock Management 26 Acer eRecovery Management 27 Acer eSettings Management 28 Windows Mobility Center 29 Using the System Utilities 30 Acer GridVista (dual-display compatible) 30 Launch Manager 31 Norton Internet Security 32 Hardware Specifications and Configurations 33 System Utilities 41 BIOS Setup Utility 41 Entering BIOS Setup 41 BIOS Setup Primary Menus 41 BIOS Setup Navigation Keys 41 Information Menu 42 Main Menu 43 Security Menu 44 Boot Menu 46 Exit Menu 47 Machine Disassembly and Replacement 49 Disassembly Requirements 49 General Information 50 Pre-disassembly Instructions 50 External Module Disassembly Process 52 External Modules Disassembly Flowchart 52 Removing the Battery Pack 53 Removing the SD Dummy Card 54 Removing the Express Dummy Card 54 Removing the Lower Cover 55 Removing the DIMM 56 Removing the WLAN Board Module 57 Removing the Hard disk Drive Module 58 Removing the Optical Drive Module 59 Main Unit Disassembly Process 61 Main Unit Disassembly Flowchart 61 Removing the CPU Heatsink Module 62 Removing the CPU 63 Removing the Keyboard 64 Removing the Middle Cover 65 Removing the Power Board 66 Removing the Media Board 67 Removing the LCD Module 68 Separating the Upper Case from the Lower Case 70 Removing the Speaker Modules 73 Removing the Launch Board 74 Removing the Touchpad Board Module 75 Removing the Bluetooth Board 77 Removing the USB board 78 Removing the Mainboard 79 Removing the Modem Board 81 Removing the RTC Battery 83 LCD Module Disassembly Process 85 LCD Module Disassembly Flowchart 85 Removing the LCD Bezel 86 Removing the Camera Board 87 Removing the Inverter Board 88 Removing the LCD with Brackets 89 Removing the LCD Brackets 91 Removing the LCD Module Hinges 92 Removing the Antennas 93 Removing the Microphones 94 Troubleshooting 97 System Check Procedures 98 External CD/DVD-ROM Drive Check 98 Keyboard or Auxiliary Input Device Check 98 Memory Check 98 Power System Check 99 Touchpad Check 100 Power-On Self-Test (POST) Error Message 101 Index of Error Messages 102 Phoenix BIOS Beep Codes 104 Index of Symptom-to-FRU Error Message 108 Intermittent Problems 111 Undetermined Problems 112 System Block Diagram and Connector Locations 113 System Block Diagram 113 Board Layout 114 Top View 114 Bottom View 115 FRU (Field Replaceable Unit) List 119 Aspire 4920 Exploded Diagram 120 Aspire 4920 FRU List 121 Model Definition and Configuration 130 Aspire 4920 130 Test Compatible Components 133 Microsoft® Windows® Vista™ Compatibility Test 134 Online Support Information 139