iv  [CONFIDENTIAL]  TECRA S3 Maintenance Manual (960-532) 
The manual is divided into the following parts:  
Chapter 1  Hardware Overview describes the TECRA S3 system unit and each 
FRU. 
Chapter 2  Troubleshooting Procedures explains how to diagnose and resolve 
FRU problems. 
Chapter 3  Test and Diagnostics describes how to perform test and diagnostic 
operations for maintenance service. 
Chapter 4  Replacement Procedures describes the removal and replacement of the 
FRUs. 
Appendices  The appendices describe the following: 
  Handling the LCD module 
  Board layout 
  Pin assignments 
  Keyboard scan/character codes 
  Key layout 
  Wiring diagrams 
  BIOS rewrite procedures 
  EC/KBC rewrite procedures 
  Reliability 
  Maintenance of TOSHIBA RAID