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
