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options, press and hold MENU-the menu will remain on-screen indefinitely. Once you release the
menu button, the screen will time out.
Once a menu times out, it is still considered the active menu. Pressing MENU will bring up the
last used menu.
The UP ARROW and DOWN ARROW make adjustments to menu functions. On the left side of
every menu there are UP ARROW and DOWN ARROW symbols. The symbols indicate which
ARROW button has a function in a particular situation. Either one or both ARROW buttons can be
used to adjust the menu function. A hollow ARROW symbol means that the corresponding
ARROW button has no function. Pressing that button will result in no adjustment and the "error"
audible will be heard. A solid ARROW symbol means that the corresponding ARROW button can
be used to affect the menu adjustment.
The ARROW buttons often can be used when no menu is on-screen. In these situations, pressing
the ARROW button affects the function of the active (last-used) menu. This is a short-cut to menu
operation. The menu appears onscreen while the adjustment is made and `times out'. A
frequently used menu can be adjusted very quickly using this technique.
After an adjustment is made to a menu function, the menu "times out" after a few seconds and
the unit returns to normal operation.
All menus use the same basic layout as
shown in Figure F. The heading at the top
describes the menu function (see Control
Functions for more details on individual
functions). The UP ARROW and DOWN
ARROW symbols to the left of the menu
indicate which buttons are available for
adjustment. In menus which have
numerous possible settings such as depth
range, a range of adjustment indicator
shows the total range available and the current setting. Within the menu are the options available.
The selected option or current setting is highlighted in the black box. If no adjustment is made,
this will be the selected setting. Pressing one of the ARROW buttons while the menu is on-screen
selects another option.
Several of the menus are multi-step. In some situations if an adjustment is made, additional
options become available for further adjustment. Examples of these multi-step menus are Depth
Range, Depth Alarm and Zoom. See the detailed description of each function for further
explanation.