TM 11-6625-2440-12
c. Remove electronics unit chassis from
e. Connect test set and ancillary test equipment
combination case (para 4-17) and verify that LATITUDE
switch, located at the rear of chassis, is set to NORTH or
connectors are properly mated and locking rings
SOUTH in accordance with the hemisphere in which the
completely engaged.
test site is located. Replace chassis in combination
case.
2-6. Initial Checks and Adjustments
d. Set all control-display unit and electronics unit
front panel switches and circuit breakers to the OFF or
Initial checking consists of verification that the test set is
down position.
operating properly and the LATITUDE CORRECTION
CAUTION
thumbwheel switches are set for the specific latitude of
Turn off primary ac and dc power at
the test site.
source before connecting cables,
a. Perform the self-test procedures described in
otherwise
damage
to
electronic
components may result.
b. Set the LATITUDE CORRECTION LEVEL
NOTE
AXIS and HEADING AXIS thumbwheel switches as
Before connecting digital voltmeter,
described in paragraph 3-5.
insure that ground bus between COM
and GRD is removed.
Change 1 2-3
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