MP01419 R80 May82

This document is the R8Ø Field Maintenance Print Set, published by Digital Equipment Corporation in 1982.

Its primary purpose is to provide comprehensive technical information for the field maintenance of the R8Ø Disk Drive system. The print set is organized into sections covering various assemblies and electronic components, including:

• Major Assemblies: Detailed drawings and parts lists for the Disk Drive Assembly, HDA (Head/Disk Assembly)-R/W Module Assembly, Logic Chassis Assembly, Lower Chassis Assembly, H766 Power Supply Assembly, Servo Board and Stiffener Assembly, and Operator Control Panel.
• Electronic Boards: Extensive circuit diagrams, parts lists, and sometimes rework instructions for key electronic components such as the Regulator Board, Capacitor Board, Micro-Processor, various Personality Cards (including RM80 specific), Read/Write Boards, and a comprehensive suite of Servo Control circuits.
• Technical Details: The document also includes specifications, installation notes, unit variations covered by the print set (e.g., R80-AA, R80-AD, R80-AE, R80-AJ), and general instructions relevant to maintaining the R8Ø system.