TM 11-6625-1696-12
3-17. CONT MON TEMP SENSOR Section Controls, Indicators, and Connectors
Control, indicator, fuse, or connector
Function
Switch S33 (12-position rotary switch...........................
When switched away from OFF position, connects + 26 V dc and
resistive loads to AUT, and 128 V 400 Hz is routed through AUT
to internal fan.
Sw pos
Function
FAIL 1 .............................
Connects a 2 megohm resistor across
the input of AUT.
FAIL 2 .............................
Connects a short circuit across the
input of AUT.
ZERO SPEED 1 ..............
Connects a 301 ohm resistor across the
input of AUT.
ZERO SPEED 2 ..............
Connects a 7.5 kilohm resistor across
the input of AUT.
MAX SPEED 1 ................
Connects a 2.05 kilohm resistor across
the input of AUT.
MAX SPEED 2 ................
Connects a 825 ohm resistor across the
input of AUT.
ALARM ...........................
Connects a 536 ohm resistor across the
input of AUT.
TRIP ...............................
Connects a 395 ohm resistor across the
input of AUT.
OFF ................................
Removes power from AUT and connects
128 V
400 Hz supply directly to internal fan.
TRIP indicator..............................................................
Lights when S33 in FAIL 2 and TRIP positions. Indicates the
simulation of removal of high voltage from radio transmitter output tubes
because of overheat condition.
ALARM ........................................................................
Lights when S33 in FAIL 1, FAIL2, ALARM and TRIP positions.
....................................................................................
Indicates simulated fault conditions approaching TRIP level action.
Connector J69 FAN HI .................................................
Monitor point for 400 Hz HI signal from AUT.
Connector J70 FAN LO ................................................
Monitor point for 400 Hz LO signal from AUT.
Connector J71 .............................................................
Connector test panel to AUT.
Section II. TEST FACILITY, RECEIVER TS-2876(V)2/GRM-95(V)2
CONTROLS, INDICATORS, AND CONNECTORS
3-18. General (fig. 3-2)
AN/GRC-103(V) assembly under test is referred to as
The receiver test facility controls, indicators, and
AUT.
connectors are listed, with their functions, in paragraphs
3-9
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