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TABLE 1-1. OPERATING CONTROLS AND INDICATORS­
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TM-11-5841-268-25 Control Transponder Set C-6280(P)/APX C-6280A(P)/APX C-67171APX & C-7483/APX Manual
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Figure 3-1. Momentary Switch Holding Tool - Fabrication.


T.O. 12P4-2APX-142
NAVAIR 16-35C6280-1
TM 11-5841-268-25
SECTION II
PREPARATION FOR MAINTENANCE
(Not Applicable)
SECTION III
TEST EQUIPMENT AND SPECIAL TOOLS
3­1. TEST EQUIPMENT REQUIRED.
3­5. TEST WIRING.
3­2. The following test equipment is required for mainten-
3­6. Test wiring to facilitate measurements between con-
ance of Control, Transponder Set C-6280(P)/APX, C-6280A
tact pins of the electrical connector on the transponder set
control may be fabricated by connecting a short length of
(P)/APX, C-6717/APX, and C-7483/APX:
wire to each contact of the MS24266R22B55S connector.
(Air Force, Navy) Multimeter AN/PSM-6, or equiva-
These wires should be identified with the contact designa-
lent, for making continuity checks.
tion and attached to a bank of terminals suitable for making
(Army) Multirneter ME-26/U, or equivalent, for making
positive connections.
continuity checks.
Connector MS24266R22B55S, to facilitate checks.
3­7. POWER SOURCE.
3­3. TOOLS REQUIRED.
3­8. Other than voltage for checking the TEST and REPLY
indicator lights and for lighting the panel lamps, the trans-
3-4. Except for the special tools listed in this paragraph,
ponder set control requires no input power. A 28-volt DC
only common types of tools are required for maintenance
source is required for checking the indicator lights. Depend-
of the transponder set controls. (Army) See Appendix C for
ing on the particular transponder set sontrol, a 5-volt, 6-volt,
Maintenance Allocation and Tools and Equipment List. The
or 28-volt DC source is required for panel lighting. The
following tools, or their equivalent, are required for extract-
C-6280(P)/APX and the C-6280A(P)/APX require either the
ing and replacing contact pins in the electrical connector:
6-volt or 28-volt DC source, depending on the voltage rating
Extraction Tool MS24256R20, or equivalent; Insertion Tool
MS24256A20, or equivalent; and Crimping Tool M1700A
of the panel lamps installed. The C-6717/APX and C-7483/
APX require the 5-volt DC source.
with MS3190 Head, or equivalent. In addition, the tool as
shown in Figure 3-1 may be fabricated and used for holding
the momentary test switches depressed, when necessary,
during testing.
Change 1
2-1/3­1


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