Acer 4745 - page 136

126 Chapter 4

Contents

Main Page Copyright Disclaimer Conventions Preface Page System Specifications 1 System Utilities 23 Machine Disassembly and Replacement 41 Troubleshooting 107 Page Page System Specifications Chapter 1 Features Operating System Platform Mini Card Audio Storage Optical Drive Communication Privacy control Dimensions and weight Power subsystem Special keys and controls I/O interface Software Optional Items Warranty Environment 6Chapter 1 System Block Diagram Giga-LAN WiFi Keyboard ODD (SATA) Your Acer Notebook tour Page Closed Front View Left View Right View Page Page TouchPad Basics Page Windows Keys Hot Keys Hardware Specifications and Configurations Page chip requiring BIOS support with dramatically improved Page Page Page System Utilities Chapter 2 BIOS Setup Utility Navigating the BIOS Utility Aspire 4745 BIOS Information Main Security Setting a Password Removing a Password Changing a Password Boot Exit BIOS Flash Utilities DOS Flash Utility Page Page Remove HDD/BIOS Password Utilities Page Page Using DMITools Read DMI Information from Memory Write Product Name to EEPROM Write Serial Number to EEPROM Page Page Machine Disassembly and Replacement Chapter 3 Disassembly Requirements General Information Pre-disassembly Instructions Disassembly Process External Module Disassembly Process External Modules Disassembly Flowchart Page Page Page Page Page Page Removing the WLAN Module Page Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Keyboard Page Removing the Upper Cover Page Page Page Page Page Page Page Page Page Page Page Page Removing the Thermal Module Page Page Page Page LCD Module Disassembly Process LCD Module Disassembly Flowchart Page Page Page Page Page Page Page LCD Module Reassembly Procedure Replacing the MIC and WiFi Antennas Page Page Page Page Page Page Page Page Replacing the CPU Replacing the Thermal Module Replacing the Mainboard Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Troubleshooting Chapter 4 Common Problems Power On Issue Computer Shutsdown Intermittently No Display Issue No POST or Video Abnormal Video Display Random Loss of BIOS Settings Page Page Sound Problems Microphone Problems HDD Not Operating Correctly ODD Failure ODD Not Operating Correctly Discs Do Not Play Discs Do Not Burn Properly Playback is Choppy Drive Not Detected Drive Read Failure Page External Mouse Failure Other Failures Intermittent Problems Undetermined Problems Post Codes Page Page Page Page Page Jumper and Connector Locations Chapter 5 Top View Bottom View Clearing Password Check and BIOS Recovery Clearing Password Check Steps for Clearing BIOS Password Check G2 G1 BIOS Recovery by Crisis Disk BIOS Recovery Boot Block: BIOS Recovery Hotkey: Steps for BIOS Recovery from USB Storage: FRU (Field Replaceable Unit) List Chapter 6 Acer Aspire 4745 Exploded Diagrams LCD Assembly Chassis Assembly Page Acer Aspire 4745 FRU List Page Page Page Page Page Page Page Page Screw List Page Model Definition and Configuration Appendix A Acer Aspire 4745 Series Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Test Compatible Components Appendix B Microsoft Windows 7 Environment Test Page Page Page Page Page Page Page Page Page Page Page Page Online Support Information Appendix C Page Index A B F C O P R S T