Table 3-1. PADS Test Set Controls, Indicators, and Connectors

ARMY TM 5-6675-238-14 MARINE CORPS TM 08839A-14/1 Table 3-1. PADS Test Set Controls, Indicators, and Connectors - Continued Control, indicator, or connector Function EXECUTE switch-indicator Causes the computer to be reset to location zero, enables the computer clock, and releases the computer to start process- ing sequentially from memory location zero. Lights when computer is executing, Flashes when activated if computer does not execute ON/OFF switch-indicator ENTER switch Used to turn on computer. ON indicator lights when com- puter + 5V comes up. When pressed a second time it is used to turn off computer in conjunction with ENTER switch. Must be activated before the ENTER switch. OFF and ON indicator lights when OFF is pressed Used to turn off computer in conjunction with ON/OFF switch. Must be activated after ON/OFF switch-indicator is activated. Causes ON and OFF indicators to go out if computer + 5V goes down TIME HOURS meter Indicates total on time for SPU 115 VAC INPUT connector 20J1 Provides input connection for 115 VAC operating power TTY connector 20J12 Provides control signal connection between TTY and SPU TAPE READER connector 20J8 Provides control signal connection between tape reader and SPU IMU SIM TEST connector 20J11 Provides control signal connection during SPU self-test IMU SIM connector 20J4 Provides control signal connection between computer and SPU, and also used during SPU self-test BUFFER TEST connector 20J10 Provides control signal connection between buffer unit and SPU during SPU self-test BUFFER connector 20J5 Tape reader, part no. 877406-1 (figure 3-2) SPOOLING switch TIME HOURS meter Connector J1 +28 VDC fuse indicator 115 VAC fuse indicator Provides control signal connection between buffer unit and SPU In ENABLE position allows tape reader to run upon com- mand from SPU In DISABLE position tape reader will not run Indicates total on time for tape reader ‘ Provides power and control signal connection between tape reader and SPU Lights when fuse in + 28V line has blown Lights when fuse in 115 VAC line has blown 3-6 Change 1