Should have 5 tapes:
Load exec 1, press STP, RST, IPL, RUN switches on the PRC & MMU
When 'Completed' shows on screen, rewind and load exec 2.
Press 'Run' on the PRC be, reader should start
When completed do the same with the patch tape.
When complete, press STP, RST, RUN. System should initialize.
Load the MSC tape in the reader, set the 900 for tape mode.
Set PRC sw2 on, STP, RST, INT.
Maintenance screen appears. Press MTB tape button,tape should load.
Do the same for tape 5, MAP tape
Press STP, RST, RUN. System should be loaded.