LK40 Engineering Drawings Dec77

This document is a comprehensive technical documentation package from Digital Equipment Corporation for its LK40 Keyboard Assembly, copyrighted 1972 with revisions up to 1977.

It contains:

1. Drawing Directories and Indexes (Pages 1 & 3): An overview cataloging all associated drawings, categorized into "Customer Print Set Index," "MFG. Set," "Electrical," and "Mechanical" drawings. It lists drawing numbers, descriptions of components (e.g., small keyboard, serial transmitter, cables, packaging), and their revisions.
2. Unit Variations (Page 1 & 19): A table detailing different configurations of the LK40 Keyboard Assembly, such as LK40-A (50FT), LK40-B (50FT+DLII), LK40-C (8FT), LK40-D (8FT+DLII), and LK40-E (5FT for M7123).
3. Hierarchical Assembly Diagram (Page 2): A flowchart illustrating how the main LK40 Keyboard Assembly is composed of, or relates to, its major sub-assemblies like the Small Keyboard, Large Keyboard, Serial Transmitter, Cursor Keyboard, and Packaging Instructions.
4. Detailed Engineering Drawings (Pages 4-18): Extensive drawings providing in-depth technical details. These include:
   • General assembly views of the LK40 Keyboard.
   • Assembly diagrams and schematics for the Small Keyboard (LK01), Large Keyboard (LK01), Cursor Board (LK01-R), and Serial Transmitter (M7011).
   • Detailed parts lists integrated into many of these drawings.
5. Shipping List (Page 19): A dedicated parts list for the LK40, cross-referencing specific engineering drawings and modules (including DL11-A Module) for different keyboard variations.

In essence, the document serves as a master index and detailed technical guide for the manufacturing, assembly, and variations of the Digital Equipment Corporation LK40 Keyboard.