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3. Press the trackpad > key or ENTER to browse the sub-menus.
4. To edit the highlighted menu item, press the trackpad < or > keys to scroll
through the available options. Once the item is changed, the change is
accepted; you need not use the ENTER key to select.
OR
ENTER
DS400X and DS500X Digital Fishfinders
MAIN MENU
MAIN MENU
GAIN MODE
GAIN MODE
D6643-1
D6644-1