TM 11-6625-847-45
Step
Control setting and operation of
No.
Operation of test procedure
equipment under test
Performance standard
10
Set the AN/URM-127
Adjust PULSE GENERATOR
to 500 cps at 6 volts am-
(lower) WIDTH and AM-
plitude. Connect the
PLITUDE controls for an
output of the AN/
indication of 1-usec, 1-volt
URM-127 to the
positive pulse (Check
PULSE GENERATOR
pulse generator
INPUT connector.
need for -33 VDC).
Connect the AN/
USM-140(*) to the
PULSE GENERATOR
OUTPUTS 3 con-
nector.
11
Connect the AN/USM-
Adjust PULSE GENERATOR
140(*) to the PULSE
(upper) WIDTH and AM-
GENERATOR OUT-
PLITUDE controls for an in-
PUTS 2 connector.
dication of 150-usec, 1-volt
negative pulse.
12
Connect the AN/USM-
Adjust PULSE GENERATOR
140(*) to the PULSE
(upper) WIDTH and AM-
GENERATOR OUT-
PLITUDE controls for an
PUTS 1 connector.
indication of an 85-usec, 1-
volt positive pulse.
13
Connect the ME-26(*)/
Rotate the SERV SEL switch to
Output voltage varies from 0
U dc test leads be-
SSB/NSK. Adjust ALC VOLT-
to 20 1 volt dc.
tween ALC VOLTAGE
AGE TUNE control from
TUNE OUT test point
fully counterclockwise to
and ground.
fully clockwise.
14
Connect the ME-26(*)/
Rotate SERV SEL switch to
Output voltage varies from 0 to
U dc test leads be-
SSB/NSK. Rotate the ALC
20 1 volt dc.
tween ALC VOLTAGE
VOLTAGE INFO control
INFO OUT test point
from fully counterclockwise
and ground.
to fully clockwise
15
Disconnect all test equip-
Reset all switches and controls
POWER indicator is extinguished.
ment.
to the settings in paragraph
Switch or control
Setting
5-8. Common Module Tray A1A1,
TEST CONV
Normal, relaxed
Preliminary Switch and Control
switch
Settings
TEST REG switch ............Normal, relaxed
Switch or control
Setting
RF AMPL section:
POWER switch ...............................OFF
100 KC SELECTOR
0
switch.
DC/DC CONVERTER
10 KC SELECTOR
0
section:
switch.
LOAD SELECT
100
AGC ON/OFF
OFF
switch.
switch.
TEST SELECTOR
1
AGC ADJ control
Fully counterclockwise
switch.
Change 1 5-3
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