MicroVAX 3100 Models 30,40,80 and 90 IPB

This document is an Illustrated Parts Breakdown (IPB) for the MicroVAX 3100 computer system, covering Models 30, 40, 80, 85, 90, and 95.

Its primary purpose is to help users identify specific hardware parts and their locations within the product.

The document is structured as follows:

• How to Use: Provides step-by-step instructions for locating parts by finding them in figures, identifying their callout numbers, and then looking up these numbers in the associated parts list.
• Format: Explains that the document is organized based on initial figures, with all other assemblies and subassemblies referenced from them. Figures use numeric callouts for major parts.
• Parts List: Details the information provided for each part, including Figure and Item Number, Description (indicating subassemblies with asterisks), Digital/Vendor Part Number (with revision level), ECO (Engineering Change Order) Cut-In information, "Used On" codes (for product variations), and cross-references to other figures.
• ECO/Revision History: A table listing various assemblies, their initial and current revision levels, printing dates, and references to other related manuals.
• Part Number/Part Description Index Section: An alphabetical index for easy lookup of parts by number or description, cross-referencing to their location (figure and item number) within the IPB.