This manual follows a set of conventions for the ThinkPad T400 R400 Service Manual. Unless otherwise specified, the information applies to all models of ThinkPad T400 R400. The procedures are combined for all models except for significant differences. The manual includes a detailed matrix of laptop features, general information on IBM laptop models, specifications, major assembly locations, safety and regulatory information, and a discussion on the service and repair philosophy. The topics covered in the manual are as follows:
Step-by-step procedures for replacing all Field Replaceable Units (FRUs)
