This document provides the technical engineering documentation for the 'Drive Logic' subsystem (DL). It includes:
- Detailed logic schematics (DL3 through DL8) covering count logic, speed control, error detection, interface logic, and integrator circuits.
- A comprehensive Parts List (D-UA-5412175-0-0) identifying all resistors, capacitors, integrated circuits, and connectors used on the board.
- A component side view assembly drawing (5412175-0-0) to assist in physical board identification and troubleshooting.
The logic diagrams detail signal flow and timing relationships required for the drive interface, including sector detection, head positioning, and read/write control signals.