Humminbird VHF255SW - Manual (Page 64)

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RADIO SETUP: BEEP VOLUME ADJUSTMENT
This setting allows you to set the key beep tone volume level.
1. From the Radio Setup Submenu, select BEEP VOL to display the beep volume
setting choices, and choose either HIGH, LOW or OFF using the CH/ENTER knob.
RADIO SETUP: TURNING THE INTERNAL SPEAKER ON/OFF
This setting allows you to turn the internal speaker on or off in case you are using an
external speaker instead.
1. From the Radio Setup Submenu, select INT SPEAKER, and choose either ON or
OFF using the CH/ENTER knob.
CH NAME
RING VOLUME
BEEP VOLUME
>INT SPEAKER
INT SPEAKER
>ON
OFF
CH NAME
RING VOLUME
>BEEP VOLUME
INT SPEAKER
BEEP VOLUME
>HIGH
LOW
OFF