KK11-A Field Maintenance Print Set

This document is a comprehensive Field Maintenance Print Set for the Digital Equipment Corporation's KKII-A Cache Memory Option, published in 1978. It provides a detailed collection of technical information for field service and maintenance personnel.

The print set includes:

1. Table of Contents and Drawing Directories: An overview of the included documents, listing various diagrams and parts lists related to the cache memory option, Triconn Board, and 40-pin interconnect board.
2. Configurations: Visual representations of the cache memory option modules and their placement in different backplanes (BA11-K and BA11-L boxes).
3. Block Diagram: A high-level overview of the cache memory's functional components, including data, tag, and valid stores, parity logic, and UNIBUS interface.
4. Circuit Board Layouts: Detailed views of the Cache Memory Option printed circuit boards (M8268), including various layers, and extensive rework instructions (with and without ink modifications).
5. Parts Lists: Comprehensive listings of components, including part numbers, descriptions, quantities, and reference designators for the cache memory, Triconn, and interconnect boards.
6. Logic Diagrams (Schematics): Detailed circuit diagrams for various functional blocks of the cache memory, such as parity logic, write cycle logic, data memory arrays (high and low byte), tag store, AMUX buffers, interrupt/register control logic, flush counter, valid bit store, UNIBUS data transceivers/latches, UNIBUS address receivers/latches, UNIBUS registers, and hit logic.
7. Triconn Board Documentation: Drawings and a parts list for the H8822 Triconn Board, including connector installation notes.
8. 40-Pin Interconnect Board Documentation: Drawings and a parts list for the H8821 40-Pin Interconnect Board.
9. Shipping List: A list of items typically shipped with the KKII-A Cache Memory, including user guides, software library kits (paper tape and documentation), the Field Maintenance Print Set itself, and a specific resistor with a note on its use as a replacement.

The document serves as an essential resource for understanding, installing, troubleshooting, and maintaining the KKII-A Cache Memory Option.