DECstation 316+ / 320+ / 325C / 333C / 425C

This service guide is intended for trained service technicians to diagnose and repair the DECstation base systems (316+, 320+, 325C, 333C, and 425C). The manual includes a system overview, detailed troubleshooting procedures, and instructions for replacing field-replaceable units (FRUs). It also covers jumper configurations, power consumption specifications, and peripheral interface pin assignments. Customers can use the guide to order parts or find supplemental documentation.