VT62

This document is a comprehensive "Field Maintenance Print Set" for the Digital Equipment Corporation VT62 terminal, providing detailed technical information for its maintenance across several unit variations (VT62-AA, -AB, -AC, -AD).

The document is structured to offer a complete overview, starting with a table of contents that lists all major components and sub-assemblies, including the Unit Assembly, Base Assembly, Block Diagram, various printed circuit boards (Process Video, Input/Output, Memory, EIA Conversion), Keyboard, Monitor, Harness, and Power Supply. A "Drawing Directory" provides a detailed listing of all included drawings by their order number and description.

The core of the document consists of numerous schematics and assembly drawings. These include:

• Block Diagrams illustrating the overall architecture and interconnections of the VT62.
• Detailed Schematics for critical components such as the VT61 Process/Video Board, VT61 Input/Output Board (including UART, Sync, and Comm Slot details), VT62 Memory Board (including Dynamic RAM and UPROM sections), VT61 Monitor, and Keyboard. These schematics often include timing diagrams, logic gates, and component layouts.
• Wiring Diagrams and Assembly Views for physical components like the CRT, Base, Harness, and Adapter Assemblies (e.g., 20 MA Adapter).

Additionally, the document includes specific sections for the H7832 Power Supply, detailing its wiring assembly and circuit schematic. Overall, this print set serves as an essential technical reference for understanding, troubleshooting, and maintaining the VT62 terminal system in various configurations.