DEC 3000 Models 400S/600S/900S AXP

This service manual provides comprehensive information for the installation, maintenance, and troubleshooting of the DEC 3000 Models 400S, 600S, and 900S AXP systems. It covers the following key areas:

• Installation: Detailed procedures for preparing the site, unpacking, and installing the chassis into a 19-inch cabinet, including power and cable connection instructions.
• System Configuration: In-depth technical details on system components, features, memory configuration, and storage devices. It includes instructions for console security, ROM updates, and using console/utility commands for system management.
• Removal and Replacement: Step-by-step procedures for replacing Field Replaceable Units (FRUs), such as fans, power supplies, memory modules, I/O boards, and storage devices.
• Diagnostics and Troubleshooting: Extensive guides on diagnostic testing (power-on diagnostics and manual test commands), interpreting LED codes, and resolving system issues using troubleshooting tables. It also includes detailed error codes and status messages to identify failing components.
• Specifications: Detailed hardware and environmental specifications for the systems and individual options like SCSI drives, tape drives, and memory modules.
• Reference: Includes part numbers for spare parts, TURBOchannel options, and pinout diagrams for system ports.