TM8-E Control Test Part 2

This document serves as a Change Notice for the TM8-E Control Test Part 2 diagnostic program (product code MAINDEC-08-DHTMB-A-D). It identifies a specific issue in test 30 regarding the handling of the GO bit during error detection tests for File Protect. The document provides instructions for modifying the program code at locations 3664, 3677, and 3712 to ensure proper error detection functionality. It also includes comprehensive details on program operation, control commands, and error reporting for maintainers of the TM8-E DECmagtape subsystem.