TM 11-6625-1696-12
Section VI. TEST FIXTURES 6A1 THROUGH 12A1
3-51. General
Loosening the locking knob in this manner allows the
tuning shaft control knob to rotate the shaft of the AUT
Seven test fixtures form part of the Test Facility Set
in- dependently of the calibrated dial control knob. The
ANIGRM-95(V)2. Each test fixture is contained in a
tuning shaft control knob is turned to preset the AUT to
separate case which is for protection only. Each fixture
a position corresponding to a desired frequency. The
is a mechanical test stand used to test and aline the
locking detent is pressed in and the calibrated dial
appropriate modules of Radio Sets AN/GRC-103(V)1, 2,
control knob tuned to set the calibrated dial to the same
3 and 4.
preset frequency. Releasing the locking detent keeps
3-52. Test Fixture, Frequency Multiplier
the calibrated dial locked in the preset position. The
TS-3824/GRM-95(V)2
locking knob is then turned clockwise locking the two
control knobs together. With the two control knobs
locked together, adjustment of the calibrated dial by the
The AUT is placed in position against the three locating
tuning shaft control knob can be achieved by releasing
posts and locked in position by the retaining clamp. The
the locking detent. Any subsequent adjustment of the
two holes in the baseplate are to facilitate attachment of
tuning shaft control knob will now give a corresponding
test cables to connectors J 1 and J2 of the AUT. The
adjustment to the AUT through the drive shafts.
drive shaft of the AUT is attached to the flexible drive
Adjustments to the AUT can be made from all exposed
shaft of the mechanical drive assembly by two retaining
sides. The side facing the baseplate of the test fixture
screws. The initial setting of the drive shafts is achieved
has no adjustment points.
by turning the locking knob counterclockwise.
3-26
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