TM-9-2350-275-BD

M113 FAMILY CARRIER, PERSONNEL SELF-PROPELLED FULL-TRACKED

TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; BATTLEFIELD DAMAGE ASSESSMENT AND REPAIR

TM-9-2350-275-BD - Page 138 of 223

TM 9-2350-275-BD

COMMUNICATIONS SYSTEM

Procedural Steps (Cont):

7.

CVC Helmet:

a.

Remove plastic earphone cushion and receiver retainer to gain access

switch assembly.

to the

b. Connect four wires to white (switch position 6), black (1), shield (7),

and red (4)

wires.

c.

Hook the white wire to one of the inside jacks on the Soviet chest plate and the

black wire to the other inside jack (Points A and B on chest plate figure).

d. Hook the shield wire to one of the outside jacks and the red wire to the other

outside jack. (Points C and Don chest plate figure).

e. Reassemble helmet. If you can receive but not transmit, reverse the red wire

leadand shield wire lead on the two outside jacks.

8. Operating procedures for the Soviet R-123M Transceiver:

NOTE

Operating procedures and steps are keyed to the following

figure.

a.

Make sure the POWER SWITCH (23) and the DIAL LIGHT SWITCH (26) are in

the off (down) position.

b. Set the MODE SELECTOR SWITCH (3) to the Simplex (left) position.

c. Make sure the ANTENNA LOADING CONTROL LOCKING NUT (8) is

tightened (clockwise) until snug.

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