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|  MIL-C-38418E(AS)
Measure the resistance between connector 3J1-9 and 3J1-10.
b.
The resistance shall be within the following limits for each position of
the hemisphere switch:
Resistance
Hemisphere Switch
20 kilohms max
N
1 megohm min
S
c.
Measure the resistance between connector 3J1-8 and 3J1-10.
The resistance shall be within the following limits for each position of
the hemisphere switch:
Resistance
Hemisphere Switch
1 megohm min
N
20 kilohms max
S
4.6.3.3 Latitude Control Current - One 1,000 0.1% ohm resistor shall be
connected from connector 3J1-8 to 3J1-10 and another from connector 3J1-9
to 3J1-10. Apply +27 1Vdc with negative on connector 3J1-10 and
positive in series with an 820 0.2% ohm resistor to connector 3J1-4.
The following shall then be accomplished:
Set the hemisphere selector switch in N position and connect
a.
an adjustable resistance unit having a 0.1% accuracy from +27Vdc to
Set the latitude control on the compass system
connector 3J1-8.
controller and the adjustable resistance to the values shown in table XIV
and read dc voltage from connector 3J1-8 to 3J1-9. The voltage must not
exceed 30 millivolts.
48
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