Unibus Troubleshooting

This manual, titled "Unibus Troubleshooting," is a comprehensive guide for authorized service personnel. It covers system configuration rules to ensure electrically reliable Unibus operation, techniques for troubleshooting, and procedures for bus margining to identify marginal components. The document includes detailed definitions, configuration rules (such as cable length and loading limits), test equipment instructions (like the UVM-TA tester and Hi/Lo margin cards), and troubleshooting flowcharts. It specifically addresses issues related to systems that are either inoperative or showing marginal performance.