MP-0394 TK50Z EngrDrws Feb87

This document is a "Field Maintenance Print Set" (Part Number MP-02394-01, Revision A1, Copyright 1987) for the Digital Equipment Corporation TK50Z-F unit, including variations like TK50Z-FA (120V) and TK50Z-F3 (240V).

It serves as a comprehensive technical manual for the assembly, maintenance, and repair of the TK50Z-F unit. Key contents include:

• Table of Contents: An outline of all included sub-documents, assembly instructions, parts lists, and schematics.
• Unit Assembly Breakdown: Detailed lists and diagrams for the TK50Z-F unit and its major sub-assemblies (e.g., chassis, drive, cover, shield, TK50 option module kit, Loads Board, TK50 SCSI Controller, VAXstation 2000 power supply, and packaging).
• Component-Specific Documentation: Dedicated sections with detailed parts lists, physical layouts, and extensive circuit schematics for critical components like the Loads Board and the TK50 SCSI Controller. The SCSI controller schematics cover its microprocessor interface, DMA, ECC generation, write data sequencing, sync/gap detection, and SCSI bus logic.
• Wiring Diagrams: Visual representations of the unit's internal electrical connections.
• International Power Cord Details: A parts list specifying various power cord options for different countries and voltage requirements.

The document is designated as confidential and proprietary to Digital Equipment Corporation.