Humminbird 917C - Manual (Page 118)

Sonar
Sonar deactivates Sonar and removes the
Sonar Views from the view rotation.
To turn Sonar on or off:
1. Highlight Sonar on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Sonar to On or Off (Off, On, Default = On).
Views Menu Tab
From any view, press the MENU key twice to
access the tabbed Main Menu System, then
press the RIGHT 4-WAY Cursor Control key until
the Views tab is selected. This menu tab allows
you to set the available views to either hidden
or visible in the view rotation. The view will be
removed from the view rotation if it is set to
Hidden and will be displayed in the view
rotation if it is set to Visible.
Views Menu
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