TM-9-2350-274-BD M109 Battlefield Damage Assessment and Repair Download
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TM 9-2350-274-BD COMMUNICATIONS SYSTEM Procedural Steps (Cont): 4. H-189 Handset: ■ a. Insert and connect the four wires through the handset to the black, white, green, and red wire connections on the switch. b. Hook the black wire to one of the inside jacks on the Soviet chest plate and the white wire to the other inside jack. (Points A and B.) c. Hook the green wire connection to one of the outside jacks and the red wire to the other outside jack (points C and D). 5. CVC Helmet: a. Remove plastic earphone cushion and receiver retainer to gain access to the switch assembly. 11–12 Change 3