TM 11-5840-281-12-1
4-34. DESCRIPTION OF MAINTENANCE CONTROLS, INDICATORS, AND SWITCHES. (CONT)
RECEIVER-TRANSMITTER (CONT)
KEY
CONTROL OR INDICATOR
DESCRIPTION
16
MAGNETRON EXCESS
Illuminates when magnetron arcing (sparking) occurs.
SPARKING indicator
17
POWER SUPPLY OVLD
Illuminates when high-voltage power supply current over-
Indicator
load occurs.
18
CHARGING OVLD indicator
Illuminates when pfn charging overload occurs.
19
TRIGGER SELECT INTERNAL-
Two-position indicator switch allows selection of
EXTERNAL indicator switch
internally generated trigger or externally generated
trigger from IFF system for transmitter operation.
20
CIRCUIT SELECT
Two-position indicator switch allows application of
MAGNETRON-MODULE
test signals to magnetron fault circuits or modulator
indicator switch
fault circuits when TEST indicator switch is in ON
position.
21
TEST ON-OFF indicator
When ON section is depressed, allows test signals to be
switch
applied to fault circuits.
4-128
Previous Page
