TM 11-6625-2950-13
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. GENERAL
d. Functional Test. Prior to any maintenance being
performed on a suspected malfunctioning test set group,
This chapter contains information required to maintain
a functional test should be accomplished. This functional
the test set group. Included in this chapter are trouble-
test includes connecting the test set group to a known
shooting procedures, disassembly and reassembly instruc-
good uhf receiver-transmitter and uhf radio control and
tions, and functional tests for each individual component
checking the operation of each component of the test set
of the test set group. Figure FO-2 is an interconnecting
group. By using this procedure, a fault can be isolated to a
diagram and is included to supplement the maintenance
specific component of the test set group. Should a unit
procedure.
under test fail the functional test, the first step should be
a. Indicator. Maintenance for the indicator will be
to check the continuity of the cable assemblies (fig. 4-2
limited to inspection and replacement of individual
through 4-6).
circuit cards. A trouble analysis flow diagram is provided
to isolate a faulty assembly.
b. Attenuator and Headset Adapter. Maintenance
for the attenuator and headset adapter is limited to
inspection and replacement of the item.
covered in this chapter.
c. Interconnecting Box. Maintenance for the inter-
connecting box includes a continuity test of the internal
wiring and an operational check of the relay, K1.
Index of Maintenance Instructions
Trouble-
Component/
Install
Replace
Test
shooting
Inspect
assembly
Service
---
5-12A
5-6
Interconnecting box
5-19
5-13
5-18
---
---
5-7
5-19
Headset adapter
5-13
5-18
---
5-12B
5-8
5-19
Air cooler
5-13
5-18
---
5-12C
5-9
5-19
Indicator
5-18
5-13
---
---
5-10
5-19
Attenuator
5-18
5-13
Section II. TOOLS AND EQUIPMENT
direct support maintenance.
