Figure 3-7. Transmitter, Radio T-1054/GRC-144, rear top view, parts location.

TM 11-820-695-35

Figure 3-7. Transmitter, Radio T-1054/GRC-144, rear top view, parts location.

(9) Remove the two screws securing blank

(2) Loosen the two meter panel captive

panel 1A1A5 and, remove the blank panel.

screws (fig. 3-J1) on meter panel assembly 1A15A8.

(3) Position the meter panel assembly

upward and lock in position by use of the panel locking

Removal of Rack Mounted Component

latch (fig. -4).

Connectors 1A1A13XA1 Through 1A1A13XA4 and

(4) Alternately unscrew each power supply

1A1A13XA6 Through 1A1A13XA12 (fig. 3-9)

captive screw (fig. 3-1) one or two turns each until both

(1) Remove the ten screws and associated

captive screws rotate freely.

washers securing the rear shield to power supply chassis

(5) Slide power supply 1A1 out of electrical

assembly 1A1A13.

equipment cabinet 1A15 approximately 3 Inches by

(2) Tag and unsolder wires connected to

grasping the two power supply captive screws and 1A1

component terminals of the connector to be replaced.

bottom cover.

(3) Remove the two screws, two nuts, and

(6) Slide power supply 1A1 forward while

washers securing component connector to power supply

tilting downward to prevent damage to meter panel

chassis assembly 1A1A1 and remove the connector.

assembly 1A15A8 cables located above power supply

c. Replacement of Rack Mounted Component

1A1. Continue this removal technique until power

Connectors 1A1A3SXA1 Through 1A1A13XA4 and

supply 1A1 is completely removed from electrical

1A1A13XA6 Through 1A1A13A12 (fig. 3-9).

equipment cabinet 1A16.

(1)

Mount

replacement

component

(7) Loosen the two captive screws that

connector in place of removed connector using the two

secure 5/6v voltage regulator 1A1A1 to power supply

screws, two nuts, and washers removed in step b(3). Do

chassis assembly 1A1A13 and then remove 1A1A1 from

not tighten the two screws and nuts.

the chassis.

(8) Repeat step (7) for regulators 1A1A2,

1A1A3, 1A1A4, and 1A1A6 through 1A1A12.

3-38