iv Tecra A3/S2 Maintenance Manual
The manual is divided into the following parts:
Chapter 1 ...............................................................................................................................
Hardware Overview describes the Tecra A3/S2 Series 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
Screw torque list
Reliability
