This manual is divided into sections, such as the Specifications and Theory of Operation. Further, some sections are divided into subsections, such as Product Description and Removal and Installation Procedures. Sections containing procedures also contain introductions to those procedures. Be sure to read these introductions because they provide information needed to do the service correctly and efficiently. The following are brief descriptions of each manual section. Specifications contains a description of the sync pulse generator and the characteristics that apply to it. Operating Information includes general information and operating instructions. Theory of Operation contains circuit descriptions that support service to the module level. Performance Verification contains procedures for confirming that a sync pulse generator functions properly and meets warranted characteristics. Adjustment Procedure contains procedures for adjusting a sync pulse generator to meet warranted characteristics. Maintenance contains information and procedures for performing preventive and corrective maintenance of a sync pulse generator. These instructions include cleaning, module removal and installation, and fault isolation to the module level. Options contains descriptions of factory-installed options. Electrical Parts List contains a statement referring you to Mechanical Parts List section, where both the electrical and mechanical modules are listed. Diagrams contains a block diagram and an interconnection diagram. Mechanical Parts List includes a table of all replaceable modules, their descriptions, and their Tektronix part numbers.