TM 11-6625-2950-13
Table 2-1.
Operating Controls, Indicators, Connectors, and Test Points-Continued
Control, indicator,
Function
connector, or test point
Provides a means of controlling the mode of the uhf receiver-trans-
CONTROL switch S8
mitter.
(Four position rotary switch)
Function
Position
AM
Switches the logic circuit so that both binary A and B
are high.
FM VOICE Switches the logic circuit so that binary A is high and
binary B is low.
FM DATA Switches the logic circuit so that binary A is low and
binary B is high.
EXT
Switches the logic circuit so that both binary A and B
are low.
Provides an indication that +27.5 vdc is applied to the test set group.
DC PWR indicator lamp (L1)
Provides an indication that 115 vat, 60 Hz power is applied to the test
AC PWR indicator lamp (L2)
set group.
Provides an indication that S1 is On and the uhf receiver-transmitter is
RT ON indicator lamp (L3)
activated at the power supply. The lamp receives its control signal from
the data converter of the uhf receiver-transmitter,
Provides an indication that the uhf receiver-transmitter is ON and is
SWITCHED +27.5 VDC indicator lamp
providing a +27.5 vdc output.
(L4)
Provides an indication that the uhf radio control is providing a ground
ADF ENABLE indicator lamp (L5)
to the ADF enable line.
Provides an indication that the received signal of the uhf receiver-
MAIN SQUELCH indicator lamp (L6)
transmitter is of sufficient strength to open the main squelch gate,
P r o v i d e s an indication of proper wiring of the uhf radio control
KY/GD INTLK indicator lamp (L7)
KY/GD interlock circuit.
P r o v i d e s an indication that the uhf receiver-transmitter is in the
XMT indicator lamp (L9)
transmit mode of operation.
Provides an indication that the uhf radio control is ON.
C-10547 ON indicator lamp (L8)
P r o v i d e s a means of connecting air cooler J2 via cable W2 to
J1
interconnecting box.
Provides a means of connecting uhf receiver-transmitter J1 via cable
J2
W3 to interconnecting box,
Provides a means of connecting indicator J1 via cable W5 to intercon-
J3
necting box.
Provides a means of connecting uhf radio control J1 via cable W4 to
J4
interconnecting box.
Provides a means of connecting 27.5 vdc and 115 vac via cable W1 to
J5
interconnecting box.
Provides dc voltage into the uhf receiver-transmitter that will reduce the
J6 XMT ALC connector
power output.
Provides fM data into into the uhf receiver-transmitter.
J7 FM DATA connector
2-5
