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  TM 11-5821-284-34
Test equipment
Performance
Step
control settings
Figure ref.
Test procedure
standard
10
Same as step 7.
Fig. 5-8 and
Measure de voltage at
More than +3. 0 Vdc.
5-9
A1A5A3.
11
Same as step 7.
Fig. 5-8 and
Measure dc voltage at
less than +0. 3 Vdc.
5-9
A1A5B-7.
12
Same as step 7, except
Fig; 5-9 and 5-
Observe waveforms at
a. Waveforms are same as
adjust AN/USM-281to
8 (TP-10 TP-
A1A3A3, A1A3B7 and
shown in figure 6-4Q.
observe waveforms
119 TP-12)
A1A3C11. Use output
shown in figure 6-4Q.
at A1A3A3 to syn-
chronize AN/USM-140.
b. Manually trip limit
b. Waveforms are same as
switch S2 and observe
shown in figure 6-4R.
waveforms at AfA3A3,
A1A3B-7, and AqA3C-11.
13
Same as step 12.
Fig. 5-8 (TP-13
c. Manually trip limit
a. Waveforms are same as
TP-14, TP-15)
switch SI and observe
shown in figure 6-4S
waveforms at pins 13,
14, and 15 of circuit
board Al. Use output at
pin 15 to synchronize
AN/USM-140. Release
limit switch S1.
b. Manually trip limit
b. Waveforms are same as
switch S2 and observe
shown in figure 6-4T.
waveforms at pins 13,
14, and 15. Release
limit switch S2.
b. Test Connections
and
Conditions.
5-13.
Manual Override Circuit Test
Connect equipment as shown in figure 5-5. Turn on
NOTE
equip-ment and allow 5-minute warmup before proceed-
This test is performed on antenna model 437S-1A only.
ing.
a. Test Equipment.
c. Procedure.
(1) Test Set, Antenna AN/ARM-115.
(2) Multimeter ME-26B, /U.
(3) Power supply.
Test equipment
Performance
Step
control settings
Figure ref.
Test procedure
standard
1
AN/ARM-11S:
Fig. 5-8 and
Measure dc voltage at
Less than +0. 3 Vdc.
METER FUNCTION:
5-9
A1A6B-7.
OFF.
MV ADJUST' fully ccw.
MANUAL TUNE: OFF.
ME-26B/U: Adjust to
read dc volts, 28 Vdc
maximum.
Power Supply. Adjust for
2
Same as step 1.
Fig. 5-8 and
Measure dc voltage at
Less than +0 3 Vdc.
5-9
AlA6C11.
3
Same as step 1.
Measure de voltage at
Less than +0. 3 Vdc.
collector of A1Ql6.
4
Same as step 1.
Fig. 58 and
Measure dc voltage at
More than +3. 0 Vdc.
5-9.
A1AoA-3.
5
Same as step 1
Measure dc voltage at
More than +9. 0 Vdc.
collector of A1Q1iS.
6
Same as step 1, except
Fig. 5-8 and
Measure de voltage at
More than +3. 0 Vdc.
set AN/ARM-115
5-9
A1A6B-7.
MANUAL TUNE to
DECREASE
FREQUENCY.
5-7
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