Simrad AP25 Manual page 51

The "Lock function is disengaged by one of the following
actions:
• The active control unit unlocks the other ones and makes them
• The system is switched OFF by any control unit (press STBY
20221495F
"inactive" by another double press on the STBY button. It
also displays the
state.
for 2-3 seconds).
icon before it returns to the normal active
Operation
49