Furuno 520 - Manual (Page 48)

4. MENU OPERATION
4-10
4.1.2 Setting other menu items
The SYSTEM SETUP menu allows you to set various item according to your operating
needs.
1. Open the STBY mode menu.
2. Rotate the course control knob to select “SYSTEM SETUP”.
3. Press the course control knob to show the SYSTEM SETUP menu.
KEY BEEP:
LOCK:
UNLOCK
PANNEL DIMMER: 1
OFF
PUSH MENU KEY O RETURN
TO PREVIOUS MENU.
System setup menu
Activating key beep
Turn the key beep on or off.
1. Rotate the course control knob to select “KEY BEEP” on the SYSTEM SETUP menu.
2. Press the course control knob to show the key beep options window.
ON
OFF
Key beep options window
3. Rotate the course control knob to select ON or OFF as appropriate.
4. Press the course control knob.