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Provides critical information for servicing the computer and its components.
Outlines a systematic approach to replacing Field Replaceable Units (FRUs).
Details the recommended procedure before replacing a hard disk drive.
Explains how to diagnose failures using error codes displayed on screen.
Covers strategies for replacing FRUs for specific product configurations.
Discusses compliance requirements for RoHS-compliant parts and their replacement.
Details the compatibility of diskette drives with various diskette capacities.
Introduces safety notices and their multilingual availability.
Provides fundamental rules for ensuring personal safety during maintenance.
Outlines essential safety rules for working with electrical components and systems.
Offers a checklist to identify potentially unsafe conditions before servicing.
Explains how to protect sensitive electronic components from ESD damage.
Details the necessity of proper electrical grounding for safety and system function.
Crucial section to review before proceeding to other operational guides.
Lists information required when returning a Field Replaceable Unit (FRU).
Information on accessing the IBM service and maintenance website.
Guide on restoring the computer's original software and operating system.
Details the process and steps for using the Product Recovery program.
Instructions for creating service partitions and installing systems from a recovery CD.
Steps for utilizing a Recovery Repair diskette to boot the computer.
Procedures for restoring the hard disk to its factory default state.
Explains the function and management of the power-on password.
Details the user and master hard disk password functions and their management.
Describes the supervisor password's role in protecting BIOS settings.
Step-by-step guide for removing a forgotten power-on password.
Instructions for removing a forgotten hard disk password with known supervisor/master HDP.
Overview of power saving modes: screen blank, standby, and hibernation.
Guide to using PC-Doctor for diagnosing computer hardware issues.
Steps to create a bootable diskette for running diagnostic tests.
Instructions for executing diagnostic tests using PC-Doctor.
How PC-Doctor can detect and display various system hardware information.
Procedures to verify power supply functionality and troubleshoot power issues.
Lists detailed technical specifications for the ThinkPad X40 models.
Explains the meaning of various system status indicators on the ThinkPad X40.
Details applicable diagnostic tests for each Field Replaceable Unit (FRU).
Describes the functions of various Fn key combinations on the keyboard.
Lists numeric error codes, their symptoms, and corresponding FRU actions.
Describes symptoms indicated by beep codes and their FRU solutions.
Describes symptoms without beep codes and their FRU solutions.
Details symptoms related to the LCD display and their FRU resolutions.
Addresses system hang issues that occur sporadically and their troubleshooting.
Procedures for isolating FRUs when diagnostic tests do not identify the fault.
Important notices regarding the use and characteristics of special screws.
Procedures for saving and restoring system serial numbers, especially after board replacement.
Explains how to set the Universally Unique Identifier (UUID) on a new system board.
How to check and update Engineering Change Announcement (ECA) information.
Step-by-step instructions for removing and replacing the computer's battery pack.
Detailed procedure for accessing and replacing the hard disk drive.
Instructions for removing the DIMM cover to access internal components.
Procedure for removing Mini PCI adapters, DIMM, MDC-2, and BMDC-2 modules.
Step-by-step guide for removing and reinstalling the computer keyboard.
Instructions for removing and replacing the upper case assembly of the laptop.
Procedure for accessing and replacing the backup battery.
Detailed steps for removing and replacing the LCD module.
Guide for removing and replacing the lower case of the computer.
Instructions for removing and replacing the computer's fansink assembly.
Procedure for removing the LCD bezel from the display assembly.
Step-by-step guide for removing and replacing the LCD panel.
Instructions for removing and replacing the LCD inverter card.
Procedure for removing and replacing the left and right antennas.
Steps for removing and replacing the display hinges.
Procedure for removing the Bluetooth antenna cable.
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