TM 11-6625-2398-15-3
described in a, below, and then make the appropriate
the component and slide the component from the group
case until the slide locks on the chassis slide engage.
connections using the information in b, below.
(3) Depress the chassis slide locks and remove
a. Component Removal
the component from the interrogator group case.
(1) Loosen the captive screws securing the
component front panel to the interrogator group
case.
(2) Grasp the handles on the front panel of
From
To
Components
Connector
Connector
Cable
Connector
Connector
Component
Processor
1A1P1
P1
W43
P2
1XA1P1
Interrogator group case
Synchronizer
1A2P1
P1
W41
P2
1XA2P1
Interrogator group case
Synchronizer
1A2P2
P1
W42
P2
1XA2P2
Interrogator group case
W393
Receiver-transmitter
1A3P1
P1
P2
1XA3P1
Interrogator group case
Receiver-transmitter
1A3P2
P1
W40
P2
1XA3P2
Interrogator group case
a
Continuity of two of the conductors of cable W39 is provided through plug coupler-plug connections. When plug P3 is disconnected from coupler
CP2 the rf isls pulse output of the receiver transmitter is available for monitoring at BNC plug P3. When plug P4 is disconnected from coupler CP2
the difference channel rf input to the receiver-transmitter is available for monitoring at BNC plug P4. When plug P5 is disconnected from coupler CP1,
the rf challenge pulse output of the receiver-transmitter is available for monitoring at BNC plug P5, and when plug P6 is disconnected from coupler
CP1, the sum channel rf input to the receiver-transmitter is available for monitoring at BNC plug P6.
equipment is applied to stripline coupler connector A1J1
3-5. Connection of Input Power and Adapter
of receiver 1A3A3A1, and various coupling probes and
Cables
resonator tuning clips of the receiver assembly are
adjusted for the proper response characteristics. (See
Cables W32 and W47 (fig. 3-3) are provided to connect
TM 11-5895-687-35-4.)
Stripline coupler connector
input power and an input trigger to the interrogator group
A1J1, however, is directly coupled to stripline coupler
case. Connect P1 of cable W47 to PRETRIG connector
connector A1J2, which must be terminated with cable
1J1 on the rear of the interrogator group case. Connect
W13 to simulate the characteristics of the cavity
1P2 of sable W47 via a 75-ohm video cable, such as
amplifiers of the transmitting circuits of the receiver-
CG-530B U (P O AN, UPM-98), to the trigger source.
transmitter connected to this point during normal
operation. Before performing preselector alignment,
CAUTION
connect P1 of cable W13 to connector 1A3A3A1A1J2 of
To avoid damage to the equipment under
the receiver-transmitter.
test, initially check that the polarity of the dc
on the power receptacle agrees with the
3-7. Use of Cable W16
polarity shown for cable W32 on figure 6-10.
DO NOT plug in cable W: 32 if the polarity is
Cable W16 is provided for use during alignment of the
incorrect.
self-test signal generator of the self-test circuits of the
receiver-transmitter. As part of this alignment, the
Connect P1 of cable W32 to POWER connector 1J7 on
output power at terminal 4 of self-test signal generator
the rear of the interrogator group case, and connect P2
board 1A3A3A1A2 is monitored using an external power
of cable W32 to a source of 28 volts dc.
meter, and various tuning coils and capacitors are
adjusted for maximum power output. See TM 11-5895-
3-6. Use of Cable W13
687-35-4 for the detailed procedure of this' alignment.
Cable W13 is provided for use during preselector
3-8. Connection of Cable W48
alignment of the receiver circuits of the receiver-
transmitter.
As part of this alignment, which is
Cable W48 (fig. 3-3) is provided to connect Test Set-
performed with the receiver-transmitter deenergized, a
Simulator, Transponder AN/APM-245 and
1090MHz signal from external test
3-4
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