TM 55-4920-428-13
4-22. Replacement of Receptacles. (CRC)
a. Replacement of card receptacle.
(1) Remove the panel. (Ref para 4-18.)
(2) (See fig. 6-3.) Remove the screw (73) and nut (10) securing each of two brackets to the chassie.
(3) Remove two screws (72) securing the two brackets to the circuit board receptacle (74).
Remove the two brackets.
(4) Pull the receptacle from the circuit board (78).
(5) Tag and disconnect the wires from the receptacle. Use an insertion/extraction tool.
(6) Replace defective contacts. (Ref TM 55-1500-323 -25.)
(7) Connect the wires to the replacement receptacle. Use an insertion/extraction tool. (See wiring
diagram, FO-21.)
(8) Remove the tags.
(9) Insert the receptacle on the circuit board.
(10) Install two brackets on the receptacle. Secure each bracket with a screw. Secure the other end
of each bracket to the chassis. Use a screw and nut.
(11)
(12)
(13)
Perform the power supply and DVM tests. (Ref para 4-40.)
Install the panel. (Ref para 4-41.)
Perform the final test. (Ref para 4-42.)
b. Replacement of panel receptacle.
(1) Remove the panel. (Ref para 4-18.)
(2) (See fig. 6-3.) Tag and disconnect the wires from the receptacle (33, 53, or 54). Use an inser-
tion/extraction tool.
(3)
(4)
(5)
FO-21.)
(6)
(7)
(8)
(9)
Remove the nut from the receptacle shell.
Install the replacement receptacle shell. Secure it with a nut.
Connect wires to the receptacle. Use an insertion/extraction tool. (See wiring diagram,
Remove the tags.
Perform the power supply and DVM tests. (Ref para 4-40.)
Install the panel. (Ref para 4-41.)
Perform the final test. (Ref para 4-42.)
4-23. Replacement of EXTERNAL METER Jacks.
a.
b.
c.
d.
e.
Remove the panel. (Ref para 4-18.)
(See fig. 6-3.) Unsolder the wire from the jack (35 or 36).
Remove the attaching hardware. Remove the jack (35 or 36) and cover (37).
Install the replacement jack.
Install the attaching hardware.
4-5
