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Page Title:
Radio Frequency Oscillator 0-1032/PRC-47 (A8A6) |
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|  TM 11-5820-509-35
(2) Connect the multimeter to test jack J1 on
(2) The ac voltmeter shall read not more than
Power Supply PP-3518/PRC-47.
0.075 volt rms.
(3) Place the HV ON-OFF switch to ON and
t. Regulated Voltage.
adjust A5R4 (fig. 3-11) to -32.0 0.5 volts.
(1) Rotate the VOLTAGE SEL switch to
(4) The ac voltmeter shall read not more than
+19V. The DC VOLTAGE meter shall indicate in the
0.05 volt rms.
red portion of the meter scale.
(5) Return the HV ON-OFF switch to OFF
(2) The ac voltmeter shall read not more than
and disconnect the multimeter.
0.010 volt rms.
o. Voltage Regulator Operation.
(3) Connect the multimeter to test jack J8
(1) On the test fixture, place the HV ON-OFF
test fixture, place the HV ON-OFF switch to ON and
switch to ON.
adjust A5R22 to the counterclockwise stop, and then to
(2) Connect the multimeter to the output
the clockwise stop. The multimeter shall read not more
terminals of the Harrison 6434B power supply and adjust
than 18 volts dc nor less than 20 volts dc at the
the terminal voltage to 22.0 0.1 volts.
mechanical end stops respectively.
(3) Move the multimeter to test jack J8 (fig.
(4) Readjust A5R22 for 19.0 0.4 volts dc;
then return the HV ON-OFF switch to OFF.
at J8 shall read not less than 18.5 volts dc nor more
u. Filament Voltage.
than 19.5 volts dc.
(1) Rotate the VOLTAGE SEL switch to FIL,
(4) Repeat step (2) except set terminal
and place the HV ON-OFF switch to ON.
voltage of Harrison 6434B power supply to 28.0 0.1
volts dc
(2) The ac voltmeter shall read 5.9 to 6.5
volts rms.
(5) Repeat step (3). Multimeter readings
same as shown in step (3).
(3) Return the HV ON-OFF switch to OFF.
6-14. Radio Frequency Oscillator 0-1032/PRC-47
p. Performance Tests, 110-Volts, 400-Hz Primary
(A8A6)
Power Source. The tests listed in paragraph q through u
are to be conducted in the sequence shown after these
initial conditions are satisfied:
a. Test Equipment and Material.
(1) Connect the test equipment to the test
(1) Frequency Counter AN/URM-79/U
fixture as shown in figure 6- 14 using the ac ammeter in
(2) Multimeter ME-26A/U
the 115-volts, 400-Hz mains.
(3) Oscilloscope AN/USM-50
(2) Install Power Supply PP-3518/PRC-47 in
(4) Power Supply (24 volts dc) Harrison
the test fixture.
6202B (or equal)
NOTE
(5) Signal Generator SG-103/URM-25F
Do not apply primary power to the
(6) Test fixture for 0-1032/PRC-47
Harrison 6434B power supply.
b. Test Conditions and Equipment Connection
(3) On the test fixture, place the BLOWER
CAUTION
ON-OFF switch to ON, rotate the VOLTAGE SEL switch
Before connecting the power supply
to +19V, the +23V switch to OFF, and then set the HV
to the test fixture, set the output
ON-OFF switch to ON.
voltage to 19.0 2.0 volts; then
(4) Record the data required in paragraphs q
return the power on-off switch to the
through u below and compare with the reference
off position until instructed to apply
standard.
primary power.
(1) Connect the test instruments to the test
not more than 3.0 amperes when the ac main is 97.8 to
fixture as shown in figure 6-15. (The connections for the
112.2 volts at 380- to 420-Hz.
remaining test equipment are detailed in the appropriate
r. Relay Voltage.
procedural steps below.)
(1) On the test fixture, place the HV ON-OFF
(2) Before placing the O-1032/PRC-47 into
switch to OFF and rotate the VOLTAGE SEL switch to
the test fixture, remove the module cover. Install
+26.5V.
module in test fixture.
(2) The DC VOLTAGE meter shall indicate in
(3) Place the power on-off switch of the
the red portion of the meter scale.
power supply to on and then place the +20 V ON-OFF
s. Filtered Low Voltage.
switch to ON.
(1) Rotate the VOLTAGE SEL switch to
(4) Adjust the output voltage of the power
+23V. The DC VOLTAGE meter shall indicate in the
supply to 20.0 0.2 volts dc.
red portion of the meter scale.
6-27
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