IBM Types 2193, Hardware Maintenance Manual

Page: 63 / 198

51
Operating Requirements
All machines require two power inputs: one on the system
unit and one on the monitor display.
The system unit comes with a voltage selector switch,
allowing selection of either 115 V ac or 230 V ac. This switch
must be in the 230 V ac position when the machine is
plugged into a 230 V ac electrical outlet.
Special Tools
The following special tool is required to service this system
when running the diagnostics program (PC-Doctor):
•
Wrap plug, P/N 72X854