Control for CR 81

This document is a technical schematic for the M714 control board (Revision A) used in the Digital Equipment Corporation CR 81 card reader. The schematic details the logic circuits, including integrated circuits (E1-E12), resistors, capacitors, and diodes. It provides information on input/output signals, power distribution (+5V and GND connections), and includes a parts list with specific component identifiers (e.g., DEC401N, DEC430N, DS64). This document is intended for test and maintenance purposes.