MNC11

This document is the "Field Maintenance Print Set" for the Digital Equipment Corporation's MNC11 system, copyrighted in 1978. It serves as a comprehensive technical guide for the installation, operation, and field maintenance of the MNC11 and its various modular components and peripherals.

The document is organized into sections, each typically providing detailed information for a specific unit or function. Key types of content include:

• Overall System Documentation: General drawing directories, system ship lists, and system parts lists for different MNC11 configurations (e.g., MNC11-AA, -BA, -BC).
• Component-Specific Documentation: Each major component often includes:
  • Drawing Directories and Unit Assembly Drawings
  • Parts Lists
  • Circuit Schematics
  • Block, Flow, and Timing Diagrams
  • Jumper Configurations and Power-Up Modes
  • Installation & Acceptance Procedures

Key components and systems covered in detail include:

• Central Processing Unit (CPU): LSI-11 CPU with EIS, FIS, and MOS Memory (KD11-NA), and LSI-11/IB Interface.
• Memory Systems: MSV11-D/E MOS Memory System (including various 4K, 8K, 16K, and 32K configurations).

• Analog & Digital I/O:

  • MNCAD (Analog-to-Digital Converter)
  • MNCAM (Analog Multiplexer)
  • MNCDO (Digital Output)
  • MNCDI (Digital Input)
  • MNCAA (Digital-to-Analog Converter)

• Real-Time & Serial Communication:

  • MNCKW (Real Time Clock)
  • DLV11 (4 Serial Line per Controller)

• Storage Systems:

  • RXV21 Floppy Disk System (including RX02 Floppy Disk Drive Assembly)
  • RX02 Disk Controller Board

• Power & Control:

  • H786 Power Supply (including Master Board and Control Board)
  • Power Monitor Board
  • AC Box Assembly

• Other Peripherals & Interfaces: VT105 Graphics Terminal, MINC Cart, various cables, connectors, and support assemblies.

The document provides a structured approach to technical information, offering detailed diagrams and procedures essential for the maintenance and repair of the MNC11 computer system and its associated hardware.