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Section II. EQUIPMENT REQUIREMENTS
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TB-11-6625-2974-30 Calibration Procedures for Radar Test Set Group OQ-270/APS-94F Manual
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Figure 3-1. Front Panel Removal.

TB 11-6625-2974-30
Section III. PRELIMINARY OPERATIONS
a. Unlatch four fasteners (fig.  3-1), and remove
3-1.  Familiarization. Become familiar with the entire
cover from test set.
procedure before performing calibration of the TS-
b. Remove 16 floating screws holding front panel to
3770/APS-94F.
case.
3-2.  Test Fixtures.  No test fixtures are needed to
c. Grasp handles and lift front panel from case. Set
perform the calibration procedures.
front panel on bench.
3-3.
Preliminary Procedures.
d. Remove five screws securing card cage cover
WARNING
3-2) and remove cover.
Dangerous  voltages  exist  in  this
e. Connect cable W7 (P/O accessory kit) to J1 of
equipment. Be careful when 115 Vac is
STE PRIME POWER group. Connect W7 to +
applied to the equipment. Serious injury
28 V and 115 V, 400 Hz bench power.
or DEATH may result from contact with
terminals carrying this voltage.  Make
sure all power is off when disassembling
the equipment.  DO NOT service or
adjust the equipment alone.  Always
have another person available to give
first aid in case of an accident.
3-1

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