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%) MSG (message) button. It is used to view messages.
%) OBS button. It is used to select between LEG mode and OBS modes.
%) ALT (altitude) button. It is used to select the two Altitude Pages where baro settings are made
% and VNAV operation is set up.
%) NRST (nearest) button. It is used to bring up a menu of nearest functions (Airports, VOR's,
% NDB's, intersections, etc.) that may be selected.
%) D
” (direct-to) button. It is used to initiate 'direct-to' operation (navigation from the present % position direct to the destination).
%) CLR (clear) button. It is used to delete data from a data field. It is also used to back up to a % previous step in some instances such as selecting approaches/STAR's/DP's.
%) ENT (enter) button. It is used to approve or acknowledge data.
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% C. Bendix/King KMD 150 Multifunction Display/GPS
% Figure 3 shows the Bendix/King KMD 150 Multifunction Display with an internal GPS receiver. It % is located in the avionics rack in the instrument panel, see Chapter 31.
% The avionics bus, or if installed, the essential avionics bus supplies power to the Multifunction % Display/GPS. The ALT/BAT switch and the AVIONICS MASTER switch must be set to ON to % supply power through the GPS circuit-breaker to the Multifunction Display/GPS. Refer to Chapter % 92 for the wiring diagrams.
% Every 28 days, Bendix/King receives new data base information. This information is downloaded % onto data base cards. The data base card is inserted in the slot on the bottom side of the % Multifunction Display/GPS.
% The KMD 150 Multifunction Display/GPS has the following controls:
%) ON/OFF/Brightness Control. It is used to turn the unit on and off and adjust display brightness.
%) Joystick. The joystick allows movement of the pointer in MAP mode and is used for all forms % of data entry or selection.
%) 5 Function Keys (Soft Keys). A label is drawn alongside each valid key. Whenever a new % function is selected, by pressing a valid key, a new screen is displayed along with its new key % labels. This capability of drawing key labels that are only applicable to a particular screen is % referred to as 'soft keying', and allows one key to perform multiple functions without the % complications of multiple key presses on an conventional keypad. Refer to the manufacturer's % manuals for mor information about the function keys.
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