TM 11-6625-1696-12
3-15. AMPL FREQ MULT Section Control and Connectors
Control, indicator, fuse, or connector
Function
Switch S30 (5-position rotary switch) ...........................
Connects power and three gain control voltages to AUT. Connects
meter M 1 to RF power metering voltage from AUT.
Sw pos
Function
ON ..................................
Connects power and 0 volt gain control
signal to AUT.
AGC 1.............................
Connects 8.1 volt gain control signal to
AUT.
AGC 2.............................
Connects 8.7 volt gain control signal to
AUT.
AGC 2.............................
Connects 8.7 volt gain control signal to
AUT.
AGC 3.............................
Connects 8.9 volt gain control signal to
AUT.
OFF ................................
Removes power from AUT.
Connector J38 RF OUT................................................
Connection from RF output of AUT.
Connector J39 RF IN ...................................................
Connection to RF input of AUT.
Connector J41 .............................................................
Connects transmitter test facility to AUT.
3-16. ORDER WIRE Section Controls, Indicator, and Connectors
Control, indicator, fuse, or connector
Function
Switch S31 (4-position rotary switch) ...........................
Connects power to AUT. Connects J43 and J53 to A TO B and B
TO A amplifiers in AUT.
Sw pos
Function
SET REF.........................
Connects J43 to J53.
AMPL A TO B .................
Connects J43 to receiver A input and
J53 to transmitter B output of AUT.
AMPL B TO A .................
Connects J43 to receiver B input and
J53 to transmitter A output of AUT.
OFF ................................
Removes power from AUT.
Connector J43 AF IN ...................................................
Audio frequency connection to J53 or AUT through S31.
Connector J53 AF OUT ...............................................
Audio frequency connection from J43 or AUT through S31.
Connectors44,PATCHTHRU,and..................................
Connect transmitter test facility to AUT.
J45 TO RADIO.
Switch S32 (4-position rotary switch) ...........................
Connects power to J50 and J58. Connects J58 for 1, 600 Hz
oscillating or receiving mode.
1600 Hz OSC ..................
Connects J57 to J58 and connect AUT
for oscillating mode.
1600 Hz RCVR................
Connects J57 to J58 and connects AUT
for amplifying mode.
ALARM ...........................
Connects alarm indicator to J58 AUT.
OFF ................................
Removes power from J50 and J58.
ALARM indicator ..........................................................
Lights when 1, 600 Hz ringing tone is applied to J58 AUT.
Connector J46 AF IN AMPL A TO B .............................
Connection to receiver A input of J50.
Connector J54 AF OUT AMPL A TO B .........................
Connection to transmitter B output of J50.
Connector J47 HYBRID CKT NET ................................
Connection to mike input of J50.
Connector J55 HYBRID CKT NET ................................
Connection to phone output of J50.
Connector J48 AMPL B TO A.......................................
Connection to receiver B input to J50.
Connector J56 AMPL B TO A.......................................
Connection to transmitter A output of J50.
Connector J49 1600 Hz IN. ..........................................
Connection to 1, 600 Hz inputs of J50 and J58 AUT.
Connector J57 1600 Hz OUT .......................................
Connection to 1, 600 Hz output of J50 and to J58 through S32,
positions 1600 Hz OSC and RCVR.
Connector J50 .............................................................
Connects transmitter test facility to ATU.
Connector J58 .............................................................
Connects transmitter test facility to AUT.
3-8
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