TM 11-5820-401-35-1/NAVELEX 0967-432-3020
the particular manufacturer of the equip-
or V of J71, measure 1,110 ohms (single winding
ment. For such information, address cor-
respondence to Commander, US Army
(c) Between pin U of J71 and pin U of
Electronics Command, ATTN: AMSEL-
J72, measure 2,200 ohms (both windings of K71 ).
PEEC, Fort Monmouth, N.J. 07703.
b. Repair. Repair parts for the C-2742/VRC
a. Applicable References.
and parts location illustrations are provided in
appendix B. Replacement of relay K71 is discussed
(1) Repair standards. Applicable procedures
in paragraph 2-7. After replacement of a part,
of the depots performing the tests and general
make sure that the mounting screws and lock-
standards for repaired electronic equipment given
nuts are tightened securely. Before replacing the
in TB SIG 355-1, TB SIG 355-2, and TB SIG
back cover, apply a light coating of insulating
3553 form a part of the requirement for testing
silicon compound (FSN 68508807616), or equal,
to the preformed packing in the cover.
(2) Modification work orders. Peform all
modification work orders (MWO's) applicable to
2-11. Depot Overhaul Standards
the C-2742/VRC before making the tests of the
C-2742/VRC. DA Pam 310-7 lists all current
The tests on repaired equipment are designed to
measure the performance capability of the equip-
b. Test Equipment and Test Cables Required.
ment. Equipment that is returned to stock should
The required items are given in paragraph 2-9.
meet the standards given in the tests.
c. Depot Overhaul Standards.
The depot overhaul standards (c below)
(a) Connect one test cable No. 3 to J1 and
should not be used to test the perform-
another test cable No. 3 to J2 of C-2742/VRC.
ance of new equipment; that is, equip-
(b) Connect the PP-1104/G to terminals
ment that has not been repaired or re-
M (+) and A () of test cable No. 3 connected
built. Such equipment should be tested
for conformance with the electrical and
(c) Adjust the output of the power supply
operational tests cited in MIL-C
to 25.5 volts.
55127 (EL) under which the equipment
(2) Procedure. Perform the operations in
was manufactured including any waiv-
the sequence given in the following chart. The
ers and/or changes to the specification
required performance standards are indicated.
which were imposed upon or granted to
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