ApplicationDEC 400xP

This service guide provides comprehensive technical information for service technicians to maintain and repair the applicationDEC 400xP system. It covers:

• System Overview: Hardware features, internal components, and system logic.
• Troubleshooting: Diagnostic tools, Power-On Self-Test (POST) sequences, beep codes, and run-time error messages with recommended solutions.
• System Exerciser (SYSEX): Diagnostic procedures for system units and peripherals.
• FRU Removal and Replacement: Step-by-step procedures for replacing major components like the CPU module, memory, system board, and drives.
• System Configuration: EISA architecture and the System Configuration Utility (SCU).
• Technical Specifications & Appendices: Dimensions, environmental specifications, jumper settings, interface pinouts, and ISA configuration files.