MP00553 RL02 RevB Engineering Drawings Nov79

This document is a comprehensive "Field Maintenance Print Set" for the RL02 Disk Drive manufactured by Digital Equipment Corporation, dating primarily from the late 1970s.

It serves as a detailed technical manual for maintenance and assembly, providing a complete breakdown of the disk drive's components and their interconnections. The document includes:

• Assembly Diagrams: Exploded views illustrating the physical construction and how various parts fit together.
• System Cabling Diagrams: Overviews of how different sub-assemblies are interconnected electrically.
• Detailed Schematics: Circuit diagrams for all major electronic boards and power supply units, including the Power Panel, Read/Write Board, Front Panel, AC/DC Servo Boards (power supply and control circuits), and the extensive Drive Logic (covering start/stop, seek, velocity, disk speed, error, and interface logic).
• Component Layouts & Etch Patterns: Visual representations of Printed Circuit Boards (PCBs).
• Parts Lists: Comprehensive lists of components for each assembly.
• Rework Instructions & Notes: Specific instructions for modifications (Engineering Change Orders) and important manufacturing/assembly notes.

The document is designed for technical personnel, offering the necessary information to understand, troubleshoot, and repair the RL02 Disk Drive system.