DECpc™ 433 Workstation Service Guide

This document is the DECpc 433 Workstation Service Guide, published by Digital Equipment Corporation in June 1991 (Order Number ER-PCW10-SV-001).

Aimed at authorized repair technicians, its main purpose is to guide the diagnosis of faulty components and the repair of the DECpc 433 Workstation and its optional SCSI Expansion Box, primarily through the removal and replacement of Field Replaceable Units (FRUs).

The guide includes:

• A System Description outlining major components (system box, system board, drives, graphics controller, battery, monitors, keyboard, mouse).
• Troubleshooting procedures, covering Power-on Self-Test (POST) error messages, beep codes, and diagnostics for the system box, disk drives, monitors, and SCSI expansion box.
• Detailed FRU Replacement instructions for components within both the main workstation and the SCSI expansion unit.
• Appendices providing technical specifications on power consumption, interface connector pinouts, ROM-Based Setup utility for system configuration, and device mapping information.

It also contains legal disclaimers, trademark information, and compliance statements (e.g., FCC Class A, VDE) for the equipment, along with warnings regarding electrical shock and electrostatic discharge.