RF Filter Assembly (A-, B- and C- Models Only)

TM 11-5820-477-30

2-10. RF Filter Assembly (A-, B- and C- Models Only)

This task covers: Replacement

INITIAL SETUP

Tools

Tool Kit, Electronic Equipment TK-105/G

Replacement. (figures 2-6 and 2-7)

CAUTION

Do not use a soldering gun. Damaging voltages can be induced in the components. Use

a pencil-type soldering iron with 25-watt maximum capacity. Both control units are

transistorized. If only an at-operated iron is available, use an isolating transformer.

NOTE

When removing soldered leads, tag each lead for identification as it is unsoldered from its

terminal to facilitate reconnection.

The specific components that comprise the RF filter assembly vary depending on the

particular control unit (local or remote) and model. The procedures described in this

paragraph are typical for all units and models.

The C-2328A/GRA-39 and C-2329A/GRA-39 (comprising the AN/GRA-39A) have sealed

RF filter assemblies consisting of unspecified components that cannot be replaced

individually. if a fault is detected, the entire sealed unit must be replaced.

(1) Release clamp on each side of control unit and slide chassis out of case.

(2) Tag and unsolder wires connected to RF filter assembly components (1) and remove components from

chassis (2).

(3) Position new RF filter assembly components (1) on chassis (2) and solder tagged wires to proper

terminals on RF components.

(4) Slide chassis into case and secure with clamps.

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