Table of Contents

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Aspire 4750 and 4750G Series
Service Guide
Service guide files and updates are available
on the ACER/CSD web; for more information,
please refer to
http://csd.acer.com.tw
PRINTED IN TAIWAN

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Table of Contents
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Summarization of Contents

Chapter 1 System Specifications
Features
Summary of computer features including platform, memory, display, and graphics.
System Specifications
Detailed hardware specifications and configurations of the system.
System Block Diagram
Block diagram illustrating the internal components and connections of the system.
Your Acer Notebook Tour
Guide to identifying external components and indicators on the notebook.
Hardware Specifications and Configurations
Comprehensive list of hardware specifications and configurations.
BIOS Setup Utility
Information on accessing and navigating the BIOS setup utility for system configuration.
System Utilities
Overview of system utilities, including BIOS and flash utilities.
Chapter 2 System Utilities
BIOS Setup Utility
Details on the BIOS Setup Utility for hardware configuration.
Navigating the BIOS Utility
Instructions on how to navigate the BIOS utility menu options.
Information
Displays a summary of the computer's hardware information.
Main
Allows setting system time, date, and boot options.
Security
Security settings to safeguard the computer from unauthorized use.
Boot
Configuration of boot device order for loading the operating system.
Exit
Options to save or discard changes made in the BIOS setup.
BIOS Flash Utility
Procedure for updating the system's BIOS flash memory.
Remove HDD Password
Steps to remove a hard disk drive password if it is locked.
Chapter 3 Machine Disassembly and Replacement
Disassembly Requirements
Lists the necessary tools and precautions for disassembling the computer.
General Information
Provides pre-disassembly instructions and an overview of the disassembly stages.
External Module Disassembly Process
Flowchart and steps for disassembling external modules.
Removing the Battery Pack
Step-by-step guide to remove the battery pack from the notebook.
Removing the Optical Drive Module
Instructions for removing the optical drive module.
Removing the Back Cover
Guide on how to remove the back cover of the notebook.
Removing the Hard Disk Drive Module
Detailed steps for removing the hard disk drive module.
Removing the Wireless LAN Card
Procedure for removing the wireless LAN card.
Removing the DIMM Module
Instructions on how to remove the DIMM memory module.
Main Unit Disassembly Process
Flowchart and steps for disassembling the main internal components.
Removing the Keyboard
Step-by-step guide to remove the keyboard from the notebook.
Separating the Upper Case from the Lower Case
Instructions on how to separate the upper and lower casing of the notebook.
Removing the Touchpad Boards
Guide on removing the touchpad boards.
Removing the Left and Right Speakers
Steps to remove the left and right speaker assemblies.
Removing the Power Button Board
Instructions for removing the power button board.
Removing the Bluetooth Module
Steps to remove the Bluetooth module.
Removing the RTC Battery
Guide on removing the RTC battery.
Removing the USB Board
Instructions for removing the USB board.
Removing the Main Board
Detailed steps for removing the main motherboard.
Removing the Heatsink Module
Instructions for removing the heatsink module.
Removing the CPU
Step-by-step guide to remove the CPU from the socket.
Removing the LCD Module
Instructions for removing the entire LCD module assembly.
Removing the LCD Bezel
Guide on removing the LCD bezel from the screen assembly.
Removing the LCD panel with the Brackets
Steps to remove the LCD panel along with its mounting brackets.
Removing the LCD Brackets
Instructions for removing the LCD mounting brackets.
Removing the FPC Cable
Guide on removing the Flexible Printed Circuit (FPC) cable.
Removing the Web Camera
Steps to remove the web camera module.
Removing the Microphone
Instructions for removing the microphone.
Removing the Antennas
Guide on releasing and removing antenna cables.
Chapter 4 Troubleshooting
Troubleshooting
General procedure and table for diagnosing and resolving computer problems.
System Check Procedures
Procedures for checking external diskette and optical disk drives, and keyboard.
Memory Check
Steps for performing a memory check to identify potential errors.
Power System Check
Procedure to verify system power sources (battery and adapter).
Check the Power Adapter
Instructions for checking the power adapter's output voltage.
Check the Battery Pack
Steps to check the battery pack's functionality and charging.
Touchpad Check
Actions to take if the touchpad is not working correctly.
Power-On Self-Test (POST) Error Message
Index of POST error messages and their causes for troubleshooting.
Index of Error Messages
List of error codes and their corresponding error messages.
Error Message List
Detailed list of error messages and recommended FRU/Action sequences.
Intermittent Problems
Guidance on diagnosing and resolving intermittent system issues.
Undetermined Problems
Procedures for isolating failing FRUs when problems are not clearly identified.
Chapter 5 Connector Locations and BIOS Recovery
Connector Locations
Diagrams and lists identifying connectors on the main board.
Main Board
Top view diagram of the main board showing connector locations.
Clearing Password Check and BIOS Recovery
Procedures for clearing BIOS passwords and recovering BIOS.
BIOS Recovery by Crisis Disk
Steps to recover the BIOS using a crisis disk and hotkey.
Chapter 6 FRU List
FRU (Field Replaceable Unit) List
List of all Field Replaceable Units (FRUs) for the Aspire 4750/4750G Series.
Exploded Diagram
Exploded view diagram showing the assembly of notebook components.
Appendix A Model Definition and Configuration
Model Definition and Configuration
Table detailing model configurations, specifications, and regional variations.
Appendix B Compatible Components and Tests
Test Compatible Components
Lists of components and peripherals tested for compatibility with the system.
Hardware Device Tests
List of hardware devices tested and their vendors.
Appendix C Online Support Information
Online Support Information
Information on accessing online technical support services and resources from Acer.

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