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BATTERY MODULE BATTERY INSTALLATION
The battery module requires one 9 volt battery. Alkaline batteries are
recommended for best performance. Do not use nickel-cadmium
rechargeable batteries or lithium batteries.
1. To remove the battery door press
down on the detent while sliding
the battery door over in the direc
-
tion of the arrow, then lift up.
2. Install the battery as shown. The
unit will not operate properly if the
battery is installed incorrectly.
3. Replace the battery door.
NOTES:
1. Avoid unplugging the headset while noise reduction is turned on, as this
could cause a loud popping sound in the ears.
2. If the batteries are low, the red LED will light on the battery module. Replace
batteries as soon as possible to ensure continued ANR 500 operation.
3. If the ANR operation shuts down due to low batteries, the Airman ANR 500
headset will function as a conventional headset.
OPTIONAL AIRCRAFT POWER SUPPLY MODULE
The power supply module is designed for use in negative ground electrical
systems only. Do not attempt to use with positive-ground electrical systems.
5.
9V Battery
DETENT
Figure 5: Battery Installation
Figure 6: Power Supply Module