TM 11-6625-928-12
Function
indicator , o r c o n n e c t o r
Control.
Function
SW pos
10
_____________Connects
external
audio
output
signal
f r o m COMM CONT TEST INPUT connector J19
to the uncontrolled audio No. 2 received audio in-
p u t line of headset amplifier of communication
control under test connected to COMM CONT NO.
2 connector J3- Connects output of this headset
l mplifier to COMM CONT TEST OUTPUT con-
n e c t o r J20.
11 and OFF ______ In these two positions, no continuity is established
b y the COMM CONT TEST selector switch-
Provides for connection of an external audio oscillator output signal
C O M M CONT TEST INPUT conncwtor
J 1 9 (two-pin).
to communication control under test-
Provides for connection of an external multimeter for measuring out-
COMM CONT TEST OUTPUT
p u t of communication control under test-
connector J20 (two-pin)-
Provides for connection of signals and power for Communication Sys-
C O M M CONT NO. 2 connector J3
tem Control C-6533/ARC-
(41-pin)-
O F F _ _ _ _ _ _ _ _ _ Disconnects external signal generator output to
A D F antenna function selector switch
S I G N A L INPUT c o n n e c t o r 323 from L O O P A N -
(six-position rotary)-
TENNA X, LOOP ANTENNA Y, and SENSE
A N T E N N A connectors J24, J25, and J26 respec-
tively.
Connects external signal generator output from
SIGNAL INPUT connector J23 to LOOP AN-
TENNA X, LOOP ANTENNA Y, and SENSE
ANTENNA connectors J24, J25, and J26 respec-
tively-
- Connects external signal generator output from SIG-
NAL INPUT connector J23 to SENSE AN-
T E N N A connector J26 only-
Connects external signal generator output from
SIGNAL INPUT connector J23 to LOOP AN-
T E N N A X and LOOP ANTENNA Y connectors
J24 and J25 respectively-
Connects external signal generator output from
SIGNAL INPUT connector J23 to LOOP AN-
T E N N A X connector J24 only-
Connects external signal generator output from
SIGNAL INPUT connector J23 to LOOP AN-
T E N N A Y connector J25 only-
Connects +28 volts of R-1496/ARN-89 under test
ADF TEST selector switch (12-position
from ADF RCVR TEST connector J5 to ADF
rotary ) .
T E S T RCVR connector J21- Connects +28 volts
o f C-7392 ~ARN-89 under test from ADF CON-
T R O L TEST connector J6 to ADF TEST CON-
TROL connector J22-
Connects 26-volt, 400-cPs signal of R-1496 /ARN-89
under test from ADF/GYRO connector J4 to ADF
TEST RCVR connector J21- Connects bfo + 15 v
o f C7392/ARN-89 under test from ADF CON-
T R O L TEST connector J6 to ADF TEST CON-
TROL connector J22-
C o n n e c t s +15 volts stabilized voltage of R-1496/
A R N - 8 9 under test from ADF RCVR TEST con-
n e c t o r J5 to ADF TEST RCVR connector J21-
Connects loop preamplifier +15 v of C-7392/
A R N - 8 9 under test from ADF CONTROL TEST
connector J6 to ADF TEST CONTROL connector
J22.
2 - 8 change 1
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