DEC-10-BHAD-D BA10 Hard Copy Controller Maintenance Manual Sep72

This document, Volume I of the DECsystem-10 BA10 Hard Copy Control Maintenance Manual (DEC-10-HBAD-D), provides comprehensive information for the installation, operation, and maintenance of the BA10 Hard Copy Control and its associated peripheral devices.

The BA10 Hard Copy Control serves as an interface between the DECsystem-10 I/O Bus and various hard copy output devices, specifically:

• CP10 Card Punches
• CR10 Card Readers
• LP10 Line Printers
• XY10 Plotters

The manual details general information about the system, including equipment features, specifications, and mechanical assembly. It covers installation procedures for both the control logic and each peripheral, describes the common logic and cabling, and explains device selection and power control.

For each peripheral type, the document provides in-depth functional descriptions, outlines indicators and controls, offers operating notes (e.g., startup, card loading, error correction), and details I/O instructions (CONO, CONI, DATAO/DATAI). It also delves into the general and detailed theory of operation, including interface cable signals and specific operational cycles (e.g., pick, punch, read, eject, data transfer, error detection).

A substantial section is dedicated to maintenance, encompassing equipment requirements, preventive checks (mechanical, power supply, margin), lubrication, and one-shot adjustments. Corrective maintenance procedures cover preliminary investigation, system troubleshooting with diagnostic programs, signal tracing, module troubleshooting, and repair, emphasizing validation testing and log entries. The manual assumes familiarity with DEC logic, DECsystem-10 architecture, and I/O Bus operations.