BENDIXKing AeroNav 910 Pilot's Manual page 410

AeroNav 900/880 Series Pilot's Guide
Press the button on the back of the keyboard to make it
discoverable. Then, press the "Start Scan" LSK on the AeroNav.
After a while, the AeroNav will discover the keyboard and it will
appear on the list of devices shown on the screen. At that point,
press the "Stop Scan" LSK.
After "Stop Scan" has been pressed, rotate the right outer knob to
move the cursor to the desired device. Press the "Pair Device"
LSK and wait for a numeric pairing code to appear.
Bluetooth pairing - Start Scan LSK
89000039-010
7-80 General Rev 1 May 2019