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SING YOUR HEADSET
An LED, located on the control module, changes color to indicate the
power status, as follows:
LED Color Type of light Indicates
Green Blinking Power ON and batteries good
Amber Fast blinking Power ON, but batteries low
(8 hours or less remaining)
Red Faster blinking Power ON, but batteries very low
(2 hours or less remaining)
Off None Power OFF or batteries dis-
charged
Operating the aircraft powered headset
Power switch
Turn on ANR by setting the power switch to ON (Figure 19).
Figure 19
The volume control knobs
and power switch on the
aircraft powered headset
control module
Volume control
(left ear)
Volume control
(right ear)
Power switch
Volume control
Overall headset volume control requires adjustments at both the air-
craft intercom or radio and at the headset control module. Even at its
lowest setting, neither knob on the control module can completely
turn off the volume.