COURSE SELECTION KNOB (rotary action)

• moves selected course pointer on PFD and MFD
• digital value of the course is displayed on the PFD and MFD
• variable rate tuning advances the heading several digits when the knob is rotated rapidly

NAVIGATION SOURCE SELECTION KNOB (rotary action)

• selects the source to be used for navigation
• indicated by the navigation source annunciator on the PFD and MFD (NAV page in both ARC and FULL)
• selections from fully counterclockwise to fully clockwise for both knobs are: • FMS1 • VOR1/ILS1 • VOR2/ILS2 • FMS2
• after each power up the initial position is VOR1 for Side1 and VOR2 for Side2
• If both pilots select the same navaid, then the nav source annunciator on both PFDs will change to yellow.
• If the pilot selects a No. 2 nav source, the PFD1 nav source annunciator will change to yellow
• If copilot selects a No. 1 nav source, PFD2 nav source annunciator will change to yellow

HEADING SELECTION KNOB (rotary action)

• moves heading bug on PFD, EHSI, and on NAV page

ALT KNOB (rotary action)

ROTATE - to select desired altitude

• pilot selects ALT SEL on flight guidance controller and initiates a maneuver to fly toward the preselected altitude

FLIGHT GUIDANCE MODE SELECTORS (momentary action)

PUSH - selects flight director modes of operation

• flight director command bars display lateral and vertical guidance commands depending on selected mode
• pilot can manually fly the displayed commands or engage autopilot to automatically fly the commands
• the selected flight director mode appears in the Flight Mode Annunciator (FMA) area of each PFD

HDG MODE (momentary action)

PUSH - activates the lateral guidance commands based on selected heading (indicated by heading bug) as displayed on active PFD