Replacement. - TM-11-5820-695-350320

TM 11-5820-695-35

in plate assembly 1A16. If the mounting holes on 1FL3

NOTE

cannot be aligned with the mounting holes in 1A16,

If radio frequency bandpass filter

loosen the four iDC1 mounting bracket screws (fig. 3-2)

1FL3 is the only component to be

and then align the mounting holes.

replaced; proceed to step b(6) below.

(7) Insert and tighten the four screws and

washers that secure radio frequency bandpass filter

(6) Disconnect radio frequency low pass filter

1FL3 to plate assembly 1A16.

1FIA from elbow adapter 1CP4 by rotating the knurled

(8) Tighten the four 1DC1 mounting bracket

connector on 1FIA in a counterclockwise direction.

screws if they were loosened in step (6) above.

Remove 1FIA by pulling it through the connector access

hole in plate assembly 1A16.

(9) Tighten the four screws that secure 1DC1

to the lDC1 mounting bracket.

NOTE

(10) Reconnect coaxial cables 1A9W9 to radio

If radio frequency low pass filter

frequency bandpass filter 1FIA, 1A16W24 to directional

1FL4 is the only component to be

coupler IDC1 connector RF INCIDENT J3, 1A16W22 to

replaced; proceed to step b(8) below.

directional coupler LDC1 connector INCIDENT J4, and

lAlEW2B to directional coupler 1IDCl'connector

REFLECTED J5.

(7) Disconnect elbow adapter 1CP4 from

NOTE

directional coupler 1DC1 by rotating the knurled

If the four 1DC1 mounting bracket

connector on 1CP4 in a counterclockwise direction.

screws were loosened in step ((6)

Remove elbow adapter 1CP4.

above; it may 'be necessary to

reposition the plate assembly guide

NOTE

bracket (fig. 68) to permit installation

If elbow adapter 1CP4 is the only

of plate assembly lA16. If the plate

component to -be replaced; proceed

assembly guide bracket must be

to step b(2) below.

repositioned, loosen the four screws

that secure the guide bracket until

(8) Remove the four screws and washers

the plate assembly guide bracket can

securing directional coupler IDC1 to 1DC1 mounting

be moved up or down but still

bracket.

maintains its position when released,

then insert plate assembly 1AIC into

b. Replacement.

position in electrical equipment

cabinet 1A16.

Remove plate

(1) Mount directional coupler 1DC1 to

assembly lAl1 and tighten the four

1DC1 mounting bracket and loosely secure 1DC1 in

screws that secure the plate

place using the four screws and washers removed in

assembly guide bracket being sure

step a(8). Do not tighten the four screws at this time.

that the guide bracket does not move

(2) Mate the knurled connector on elbow

up or down.

adapter 1OP4 with the connector on the bottom of

directional coupler 1DC1 and rotate the knurled

(11) Replace

plate

assembly

1A16

(para

connector clockwise two complete turns.

832b).

(3) Mate the connector on radio frequency

bandpass filter 1FL3 with the knurled connector on radio

(12) Perform the T-1054(P)/GRV-144V) and T-

frequency low pass filter 1FL4A. Tighten the knurled

1054(P)A/GRC-144(V) rf power metering circuit

connector.

calibration procedure (para 3-57) 3-37. Repair and

(4) Insert radio frequency low pass filter 1FL4

Replacement of T-1054(P)/ GRC-144(V) and T-

through the connector access hole in plate assembly

1054(P)A/GRC144(V) Connectors (fig. 3-14, 3-26)

1At16.

(5) Mate the knurled connector on radio

a. General.

Repair of connectors in T-

frequency low pass filter 1FAL4 with the connector on

1054(P)/GRC-144(V)

and

T-1054(P)A/GRC144()

elbow adapter 1CP4. Tighten the knurled connectors on

requires either: the replacement of the deffective

1FIL4A and 1CP4.

connector (solder type nonremoveable contacts), or the

replacement of defective connector contacts (crimp or

(6) Align the mounting holes on radio

solder type removable contacts).

A listing of

frequency bandpass filter 1FL3 with the mounting holes

Change 6

3-55