DEC 3000 Models 600/600S AXP and 800/800S AXP Service Information

This document serves as a service and reference guide for the DEC 3000 Models 600/600S AXP and 800/800S AXP systems. It is intended for Digital services personnel and self-maintenance customers.

The guide is structured into four main parts:

• Part I (Models 600/600S AXP Specific Information): Covers system overview, configurations, Field Replaceable Unit (FRU) removal and replacement procedures, diagnostic testing, and troubleshooting for these specific models.
• Part II (Models 800/800S AXP Specific Information): Provides similar information for the 800/800S AXP systems, including system overview, configuration, FRU removal and replacement, diagnostic testing, troubleshooting, and rackmount installation procedures.
• Part III (Common System Information): Contains information applicable to both model series, such as console and utility commands, LED codes and status/error messages, recommended spare parts lists, and SCSI ID settings for drives.
• Part IV (System Upgrading Information): Details the process for upgrading a DEC 3000 Model 400/400S AXP system to a Model 600/600S AXP.

The document emphasizes diagnostic and troubleshooting aids, along with detailed procedures for replacing failed or damaged FRUs. It also includes sections on antistatic precautions, power-on diagnostics, console security, memory configuration, and internal cabling.