AA11-D D/A Subsystem

This document serves as the technical manual for the AA11-D D/A Subsystem, including the A614 DAC module and M799 Scope Control module. It provides:

• Functional Description: Details on how the subsystem acts as an interface between the PDP-11 Unibus and analog display devices, including addressing, interrupt logic, and signal processing.
• Installation: Step-by-step procedures for installing the system, power supply setup, and cabling.
• Adjustment: Comprehensive procedures for calibrating DAC offset and gain, as well as timing adjustments for different scope displays.
• Maintenance: Preventive and corrective maintenance guidelines, including diagnostic test descriptions and recommended test equipment.
• Engineering Drawings: A list of relevant engineering drawings for the subsystem components.
• Appendices: Technical specifications and programming information for the AA11-E color display option.