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): 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 chestplate figure). d. Hook the shield wire to one of the outside jacks and the red wire to the other outside jack. (points C and D on chest plate figure). e. Reassemble helmet. If you can receive but not transmit, reverse the red wire lead and shield wire lead on the two outside jacks. 6. Operating procedures for the R-124. NOTE Operating procedures are keyed to the intercom. 11-13