LS--671 Installation/Operation.

TB 11-6320-390-10-14

LS--671 lnstallation/Operation.

Figure 1. LS-671 Cabling to Dual Radio Set

a. Ensure that SINCGARS radio set is properly mounted and that cabling is in accordance with applicable

operator technical manual and that pre-mission check for the radio set is performed.

Cabling Instructions:

(1) Connect cables from J501 connector on AM-1780/VRC to J3 connector on the mounting adapter,

MT-6352. This connects RT-A to the AN/VIC-1 system.

(2) Connect cable (CX-13292) from J1 connector on LS-671 to J4 connector on the mounting adapter,

MT-6352 to use LS-671 with RT-B.

(3) Connect handset, H-250, to J2 connector on LS-671 to use with RT-B.

(4) Connect LS-454 to J6 connector on amplifier adapter, AM-7239, for use with RT-A

(5) Conned handset, H-250, to J3 connector on amplifier adapter, AM-7239, for use with RT-A

Switch Setting and Operations:

(1) Turn the LS-671 power function switch to the on position and the volume control knob to the

mid-range position.

(2) Turn the volume control knob on RT-B to the minimum position (turn fully counter-clockwise).

(3) Turn the volume control knob of RT-A to the mid-range position.

(4) Place CB1 switch on the AM-7239 to the on position.