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TM 11-5820-890-30-5
17-3. SPEAKER CASE/FLEXIBLE CABLE ASSEMBLY (15A2 and 15A3).
The speaker case/flexible cable assembly provides the physical structure which holds the loudspeaker, VOL
control R1, power indicator lamp DS1, ON/OFF switch CB1, and connectors J1 and J2. The speaker case/flexible
cable assembly also contains the interconnection wiring for these external components. The loudspeaker and
external components are described in the following paragraphs and illustrated in figure 17-1.
17-4. LOUDSPEAKER.
The loudspeaker provides the function of converting the amplified RT audio signals into sound for monitoring
voice
a.
b.
c.
d.
e.
communications in vehicular installations.
Figure 17-1.
Loudspeaker and External Components.
Power ON/OFF switch CB1. Used to turn the loudspeaker on and off. May also be used to turn power on
and off to the mounting adapter or power supply adapter, if the mounting adapter or power supply
adapter power switch CB1 is set to ON.
Power indicator lamp DS1.
Lights when power ON/OFF switch CB1 is set to ON.
Volume control R1. Adjusts volume level for loudspeaker or handset (if connected). To adjust volume
level for handset, turn VOL control clockwise to increase volume; turn it counterclockwise to decrease
volume. To adjust volume level for loudspeaker, pull and turn VOL control clockwise to increase volume;
pull and turn it counterclockwise to decrease volume.
Handset connector J2. Used to connect handset.
Connector J1. Connects to mounting base or single radio mount connector J3 or J4 using loudspeaker
cable CX-13292/VRC.
17-2
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