TM 11-5821-284-34
Figure 5-2. Test connections, servo loop test.
c.
Procedure.
Test equipment
Performance
Step
control settings
Figure ref.
Test procedure
standard
1
AN/ARM-115:
Fig. 5-6 1
Ground FL4 and observe
Antenna cycles normally.
METER FUNCTION:
for cycling.
+0 to 500 mV.
MV ADJUST: Adjust
for +100 mV.
MANUAL TUNE OFF.
Power Supply: Adjust
for +27. 5 Vdc.
5-9.
Homing Circuit Test
a. Test Equipment.
(1) Test Set, Antenna AN/ARM-115.
(2) Power Supply.
b. Test Connections and Conditions. Connect the equipment as shown in figure 5-3. Turn on the equipment
and allow 5-minute warmup before proceeding.
c. Procedure.
Test equipment
Performance
Step
control settings
Figure ref.
Test procedure
standard
1
AN/ARM-115:
Fig. 5-6 2
Manually trip limit
Variable capacitor
METER FUNCTION:
switch S2.
C1 runs completely
10 to 500 MV
Release S2.
out
MV ADJUST: 100 MV
MANUAL TUNE: OFF.
Power Supply: Adjust
for +27. 5 Vdc.
2
Same as step 1.
Fig. 5-6 2
Manually trip limit switch
Variable capacitor
S1.
runs completely in.
Release S1.
5-10.
Power Supply Test
a. Test Equipment.
(1) Test Set, Antenna AN/ARM-115.
(2) Multimeter ME-26B/U.
(3) Power Supply.
b. Test Connections and Conditions. Connect the equipment as shown in figure 5-4. Turn on equipment and
allow 5-minute warmup before proceeding.
c. Procedure.
Test equipment
Performance
Step
control settings
Figure ref.
Test procedure
standard
1
AN/ARM-115:
Measure with ME-26B/U
+27. 5 Vdc -5%
METER FUNCTION
for +27. 5 Vdc at pin 2
OFF.
of circuit board Al.
MV ADJUST: fully ccw.
MANUAL TUNE- OFF.
ME-26B/U: Adjust to
read dc volts; 28 Vdc
maximum.
Power Supply: Adjust
for +27. 5 Vdc.
5-4
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