Replacement of Electrical Equipment Chassis 1A14A1O

TM 11-5820-695-35

(5) Loosen the two captive screws securing

(12) Carefully push plug-in components

1A13A2 through 1A13A5 into orderwire chassis 1A13A7

components 1A2, 1A3, 1A5 and 1All to plate assembly

lA16 and remove the componmts.

until the outer edge of each plug-in component is flush

with the outer edge of the guide rails.

(6) Disconnect

main

harness

plug

LA16W25P1 (fig. 32) from connector 1A15W27J1 (fig.

(13) Close the hinged door of orderwire

3-).

chassis 1A13A7 and tighten the two hinged door captive

screws.

(7) Disconnect coaxial cable 1AlW26 from

lA16AT1J2 (fig. 3-13 and 3-15) by unscrewing the

(14) Insert

orderwire-electrical

frequency

knurled portion of type N connector 1A15W26P1.

Synthesizer 1A13/1A14 into electrical equipment cabinet

1A'15. Alternately tighten the two A-q n3ly captive

(8) Disconnect coaxial cable 1W25 from

screws on 1A13/1A14 two turns at a ;time until

1DC1J2 (fig. 3-13 and 3-15) by unscrewing the knurled

1A13/1A14 is firmly seated in electrical equipment

portion of type N connector 1W25P1 (fig. 32).

cabinet 1A15.

(9) Using masking tape, fasten coaxial

(15) Reconnect coaxial cable lA15W16 to ;he

cables 1A15W27W9 and 1A15W16 to the sides of the

OUTPUT J8 connector on electrical frequency

electrical equipment cabinet 1A15.

synthesizer 1A14.

(10) Using a long blade screwdriver, loosen

(16) Set the POWER ON/OFF switch on meter

the two plate assembly captive screws located between

panel assembly 1A15A8 to ON.

the cabinet wall and left side of the radio test set (fig.

32).

3-31. Replacement of Electrical Equipment Chassis

(11) Remove the ten plate assembly screws

1A14A1O

(four on left side and six on the right side) that secure

(fig. 3-16)

plate assembly 1A16 to electrical equipment cabinet

1A15 (fig. 3-2).

a. Removal.

(12) Slowly pull the plate assembly 1A16 out

(1) Perform steps (1) through (11) of

of the electrical equipment cabinet 1Alfi.

)paragraph 3-30a.

b. Replacement.

(2) Remove plug-in components IA14A1

.through 1A14A8 from electrical equipment chassis

(1) Carefully insert plate assembly 1A16 into

1A14A10. (TM 115820-695-12).

its approximate position in electrical equipment cabinet

1A15.

b. Replacement.

(2) Holding the plate assembly in place,

(1) Install plug-in components 1A14A1

connect main harness plug 1A16W25P1 (fig. 315),

through 1A14A8 in replacement electrical equipment

removed in step a.(6) above to connector 1A56W27J1

chassis 1A14A10 (TM 11-5820-695-12).

(fig. 3-3).

(2) Perform steps (1) through (16) of para,-

(3) Observing the plate assembly guide pins

raph 330b.

(fig. 3-) slowly insert plate assembly IA16 into electrical

equipment cabinet lA15 until it is flush mounted over the

guide pins.

3-32. Removal of Plate Assembly 1A16 (fig. 3-1)

(4) Using the ten plate assembly screws and

lockwashers removed in step a(1) above, secure plate

a. Removal.

assembly 1A16 to electrical equipment cabinet 1A15.

(1) Remove power from T-1054(P)/GRC-

(5 ) Using a long blade screwdriver, tighten

144(V) or T-1054(P)A/GRC-144(V) (para 3-20a).

the two plate assembly captive screws that were

(2) Remove power supply 1A1 (para 3-22a

loosened in step a(10) above.

(2) through (6)).

(6) Connect coaxial cable 1A15W26, re

CAUTION

moved in step a(7) above, to connector IA16Al'15J2.

Removal of rigid coaxial cables must

(7) Connect coaxial cable 1W25, removed in

be performed carefully to prevent

step w(8), to connector 1DO1J2.

damage to the rigid coaxial cables.

(8) Using the guide pins, on the rear of

components 1A2, 1A3, 1A5 and 1A11, removed in step

(3) Disconnect rigid coaxial cable 1W17 (TM

a(5) above, carefully insert the components into their

11-5820-695-12).

respective positions on plate

(4) Disconnect the noncaptivated ends of

coaxial cables 1A2W1, 1A2W2, 1A3W1, 1A16W27'W9

and 1A15W16 (fig. 3-113).

Change 6

3-52