Furuno 520, 511, 611 manual 4-11, Locking the control unit, Lock options window

4. MENU OPERATION

Locking the control unit

The LOCK feature renders the following commands inoperative from the control unit at which the LOCK feature has been actuated.

•Menu operation

•Changing the steering mode

•Course setting

•Waypoint switching

1.Rotate the course control knob to select “LOCK” from the SYSTEM SETUP menu.

2.Press the course control knob to show the lock options window.

UNLOCK

LOCK

Lock options window

3.Rotate the course control knob to select “LOCK” or “UNLOCK” as appropriate.

4.Press the course control knob.

To unlock, press the [STBD] (►) key while holding the [TURN/MENU] key down.

4-11