Acer 4240 - page 78

68 Chapter 3

4. Turn the computer over and disconnect the four FFC cables from the mainboard.

Unlock the connector and disconnect A as shown. Unlock the conne ctor and disconnect B as shown.

Unlock the connector and disconnect C as shown.

Contents

Main Page Copyright Disclaimer Conventions Preface Page System Specifications 1 System Utilities 23 Machine Disassembly and Replacement 41 Troubleshooting 137 Jumper and Connector Locations 161 FRU (Field Replaceable Unit) List 167 Model Definition and Configuration 180 Test Compatible Components 199 Online Support Information 211 Index 213 Page System Specifications Chapter 1 Features Operating System Platform Communication Dimensions and Weight Privacy control Power subsystem Special keys and controls Environment Page Your Acer Notebook tour Front View Closed Front View Left View Right View Rear View Bottom View Easy-Launch Buttons Touchpad Basics (with fingerprint reader) Using the Keyboard Lock Keys and embedded numeric keypad Windows Keys Special Key The Euro symbol The US dollar sign Using the System Utilities Acer GridVista (dual-display compatible) Hardware Specifications and Configurations Page Page Page Page Page Page Page System Utilities Chapter 2 BIOS Setup Utility Navigating the BIOS Utility Information Main Security Page Changing a Password Boot Exit BIOS Flash Utilities DOS Flash Utility Page Page Page Remove HDD/BIOS Password Utilities Page Miscellaneous Utilities Using Boot Sequence Selector Using DMITools Example 1: Read DMI Information from Memory Using the LAN MAC EEPROM Utility 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 Removing the Lower Covers Page Page Page Page Page Page Page Page Main Unit Disassembly Process Main Unit Disassembly Flowchart Page Removing the Switch Cover Page Page Page Page Page Page Page Page Page Removing the Upper Cover Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Removing the Thermal Module Page Page LCD Module Disassembly Process LCD Module Disassembly Flowchart Page Page Page Removing the LCD Panel Page Removing the LCD Brackets and FPC Cable Page Page LCD Module Reassembly Procedure Page Page Replacing the LCD Panel Page Page Page Page Replacing the Thermal Module Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 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 Internal Microphone Failure 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 150 Chapter 4 Wireless Function Failure Bluetooth Function Failure EasyTouch Button Failure Media Board Failure Fingerprint Reader Failure Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined Problems POST Codes Tables Sec: Memory: BDS & Specific action: Each PEIM entry point used in 80_PORT Each Driver entry point used in 80_PORT Page Page Each SmmDriver entry point used in 80_PORT Jumper and Connector Locations Bottom View Page Clearing Password Check Hardware Open Gap Description Steps for Clearing BIOS Password Check BIOS Recovery by Crisis Disk BIOS Recovery Boot Block: BIOS Recovery Hotkey: Steps for BIOS Recovery by Crisis Disk: Page FRU (Field Replaceable Unit) List Chapter 6 Aspire 4540/4240 Exploded Diagrams Main Module Page Aspire 4540/4240 FRU List Page Page Page Page Page Page Page Screw List Page Model Definition and Configuration Appendix A Aspire 4540/4240 Series Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Microsoft Windows 7 Environment Test Page Page Page Page Page Page Page Page Page Page Online Support Information Appendix C Page Index A B C D N O P R S