This manual follows specific conventions and covers the following topics for the IBM Laptop model:
Step-by-step procedures for replacing all Field Replaceable Units (FRUs)
Service Checkpoints
Service Modes
Printer Driver Installation
Product Information
Operating Requirements/ Procedures
Installation and Configuration
Maintenance
Function Overview
Removal and Replacements of (FRUs)
Troubleshooting
Please note that unless stated otherwise, the information provided applies to the Thinkpad X20/X21/X22/X23 Service Manual. Most procedures are applicable to all Laptop models, with the exception of significant differences. A detailed matrix of Laptop features is included, as well as general information on the model. Additional information such as specifications, major assembly locations, safety and regulatory information can also be found. The manual concludes with a discussion on the service and repair philosophy.
