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 TM 11-6625-623-45
Step
Control setting
Performance
standard
Test
procedure
Equipment under test
No.
Test
equipment
Differential voltmeter
Apply a dc voltage of ap-
a. FUNCTION SELEC-
14
Set the differen-
should read 19.930
TOR switch: 10KC
proximately 20 volts be-
tial voltmeter
volts dc.
to read 20
CONTROL BIAS
tween J4-KC STAB jack
volts dc.
(+20V).
J10 and ground. Vary the
b. Ac power switch:
dc voltage for a null in-
ON.
dication on the FUNC-
TION METER. Measure
the applied dc voltage
with the differential
voltmeter.
Differential voltmeter
Apply a dc voltage of ap-
Set the differen-
15
a. FUNCTION
SELEC-
should read 18.000
proximately 18 volts be-
tial voltmeter
TOR switch: +18V.
volts dc 0.036.
tween J2-FREQ DI-
to read 18
b. Ac power switch:
volts.
VIDER Jack J11 and
ON.
ground. Vary the voltage
for an exact FUNC-
TION METER null
with the X10 METER
SENSITIVITY switch
depressed. Measure the
applied dc voltage with
the differential volt-
meter.
Indication
Step No.
4-6. Test Data Summary
100 ohms 20.
2
Maintenance personnel may find it conven-
10,000 ohms 1,500.
3
ient to arrange the checklists in a manner sire+
470 kilohms 70.
4
0 ohm at clockwise stop.
ilar to that below. The data included in the
5
50 ohms 10 at counterclockwise stop.
checklists may then be used as a check against
164 ohms 25.
6
the test results the next time the tests are per-
82 ohms 12.
7
formed.
0 ohm.
8
Capacitor C2 charges until resistance to
9
ground is infinite.
VOLTAGE AND RESISTANCE MEASUREMENTS
103 volts dc 5.
10
Note: The numbers in the Step No. column below
75 volts dc 10.
11
are references to the Step No. column in paragraph
90 volts dc 5.
12
10.000 volts dc 0.001.
13
Indication
Step No.
19.930 volts dc.
1
600 ohms 120 at clockwise stop.
14
18.000 volts dc 0.036.
100 ohms 20 at counterclockwise stop.
15
31
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