DH/MDA

• Outer Knob - Selects either DH or MDA on respective PFD.
• Middle Knob - Rotates to select the DH or MDA altitude on the respective PFD.
• Inner Knob - Pushes to reset the DH alert on the respective PFD.

MTRS Button

• Push - Displays meters on the respective PFD altitude display.
• Second Push - Removes meters from the respective PFD display.

BARO Selector

• Outer Knob - Selects either IN or HPA as the barometric reference on the respective PFD.
• Middle Knob - Rotates to select the barometric setting on the respective PFD.
• Inner Knob - Pushes to select the standard barometric setting for the altimeter reference on the respective PFD. The letters STD are displayed on the PFD.

ND Mode Selector

• Inner Knob - When pushed, displays full compass rose for APP, VOR and the MAP positions Subsequent pushes alternates between expanded and full compass rose displays.
• Outer Knob - Selects desired display on respective ND. Ground speed, true airspeed and wind direction/speed are displayed in all modes.
• APP Knob - Selects heading up, expanded compass rose, ILS navigation information, selected ILS receiver, ILS frequency, ILS course and DME. Displays traffic when TFC button is enabled.
• APP CTR - The same as APP, except a full compass rose is displayed. Weather radar is display is inhibited. TCAS traffic is not displayed.
• VOR - Selects heading up display, expanded compass rose, VOR navigation information, elected VOR receiver, VOR frequency, VOR course, DME and TO/FROM indication. Displays traffic when TFC button is enabled.
• VOR CTR - The same as VOR, except a full compass rose is displayed. Weather radar display is inhibited. TCAS traffic is not displayed.
• MAP - Selects track up, expanded compass rose, and FMC generated map information, airplane position and heading. Also displays active waypoint data and vertical path deviation at T/D. Displays traffic when TFC button is enabled.
• MAP CTR - The same as MAP, except a full compass rose is displayed. Displays traffic when TFC button is enabled.
• PLN - Selects a static, true north up, route depiction. Allows route step through using the FMC-CDU page. Weather radar display is inhibited. TCAS traffic is not displayed.

ND Range Selector
Selects the desired range in nautical miles on the respective ND. Also selects range of the weather radar. If 640nm is selected, the radar display will format at half scale.

MAP Switches
Add additional selected data to the respective NDs. Switches may be selected simultaneously. An additional push removes the information.

• WXR - Activates and displays weather radar data. Maximum weather radar range is 320nm, although it can be displayed on 640nm range. Displayed in MAP, MAP CTR, VOR and APP ND modes. Cancels WXR FAIL messages when WXR FAIL is displayed on ND.
• STA - Displays high and low altitude navigation aids in the database if the ND range selector is in 10, 20 or 40nm range. Displays high altitude navigation aids if the ND range selector is in 80, 160, 320 or 640nm range. Displayed in MAP and MAP CTR ND modes.
• WPT - Displays waypoints in the database if the ND range selector is in 10, 20 or 40nm range. Displayed in MAP and MAP CTR ND modes.
• ARPT - Displays database airports. Displayed in MAP and MAP CTR ND modes.
• DATA - Displays ETA ETA and FMC altitude restriction at each waypoint. Displayed in MAP and MAP CTR and PLN ND modes.
• POS - Displays the IRS positions as white stars. Displays raw data VOR radials as solid green lines. These green lines extend to the DME distance to the stations tuned on the CDU NAV RADIO page. Displayed in MAP and MAP CTR ND modes.

VOR/ADF Switch
Displays VOR / ADF pointer and frequency, identifier, DME on the lower right corner of respective ND. OFF position removes the ADF and VOR displays.