VAXstation I

This document is the "VAXstation I Service Guide," a preliminary technical manual published by Digital Equipment Corporation in November 1984.

It serves as an abstracted guide providing essential information for the system configuration, maintenance, and component replacement of the VAXstation I computer. The guide refers to the full VAXstation I Technical Manual for more detailed descriptions.

Key sections of the guide cover:

• System Configuration: Describes the setup of the VAXstation I, including details on backplane layouts, CPU (KD32-AB), memory (MSV11-QA), mass storage (RQDX1, RX50, RD52), video controller (VCB01), operator I/O devices (monitor, keyboard, mouse, printers), and optional modules like Ethernet and asynchronous line multiplexers, along with their respective switches and jumpers.
• Programming Information: Outlines the programmable functions of the VCB01, specifically the I/O page locations used for control and status information exchange between the CPU and VCB01, including various registers.
• Maintenance: Details diagnostic procedures such as Microverify, standalone diagnostics (Macroverify, CPU, Memory diagnostics), VAXstation Diagnostic System (VDS) diagnostics (e.g., VCB01 diagnostics), monitor LED indicators, monitor adjustment procedures, and a comprehensive troubleshooting flow.
• Replacement: Provides step-by-step instructions for removing and replacing system components, including backplane modules, mass storage devices, the power supply, cooling fans, the patch and filter panel, the front control panel, and various monitor components, along with a list of part numbers.

The document notes that it is preliminary and its content is subject to change.