The display will reflect the effect of extending the flight spoilers.
On airplanes operated under CAA rules, the hollow yellow bar is inhibited from
takeoff through the first flap retraction. Once the flaps are up, the display will be
shown for the remainder of the flight, including subsequent flap extensions.

Stick Shaker Speed
Represented by the end of the low speed red and black striped barber pole. This speed represents the airspeed at which the angle of airflow vanes will activate the sticker shaker warning. The source of the stick shaker airspeed is the stall warning computer. The display will reflect the effects of extending the flight spoilers.
Copyright . The Boeing Company. See title page for details.
10.40.8  December 7, 2001

Flight Instruments, Displays -EFIS System Description 737 Operations Manual
Fast/Slow Display (as installed)
The fast/slow display range is plus or minus 10 knots. The fast/slow pointer is positioned by the autothrottle computer. See Chapter 4 for detailed description.
Electronic Horizontal Situation Indicator (EHSI) General
Each EHSI presents an electronically generated color display of conventional HSI navigation data (VOR/ILS and, on some airplanes, NAV modes). Each EHSI is also capable of displaying the airplane's flight progress on a plan view map (MAP and CTR MAP modes), or the airplane's flight plan on a plan view map oriented to true north (PLAN mode).
Excluding operation in the FULL NAV, FULL VOR/ILS, and PLAN modes, each EHSI also serves as a weather radar display when the WXR Switch on the respective EFIS Control Panel is ON.
During normal operation, each EHSI receives information from its own symbol generator. Each symbol generator receives data from a variety of aircraft systems to support the EHSI displays.
Display Orientation
The various displays on the EHSI are oriented in one of two ways, either “heading–up” or “track–up.” With “heading–up” orientation, all displayed data is referenced to aircraft heading as shown at the twelve o'clock position on the compass rose. With “track–up” orientation, all displayed data is referenced to aircraft track as shown at the twelve o'clock position on the compass rose.
During normal operation, heading reference data is supplied to each EHSI from the respective IRS.
Airplane track data is supplied by the FMC. If the FMC track data should become unreliable, track data is automatically supplied by the respective IRS.
EFIS Control Panel
The EFIS control panels provide selection of the EHSI display mode, display range, display brightness, weather radar display (ON or OFF and display brightness), and MAP data options. During normal operation, each panel controls the display for the related EHSI.
The selectable display modes are FULL rose NAVIGATION (FULL NAV) (some airplanes only), FULL rose VOR/ILS, EXPANDED rose NAVIGATION (EXP NAV) (some airplanes only), EXPANDED rose VOR/ILS, MAP, CENTER MAP (CTR MAP), and PLAN.
Flight Instruments, Displays -EFIS System Description 737 Operations Manual

MAP Mode
The MAP mode displays a plan view of the airplane's position relative to the FMC flight plan and/or FMC data base waypoints and navaids. The FMC flight plan and/or FMC data base waypoints and navaids and other map symbols are displayed on the map background. The map background moves relative to the fixed airplane symbol. Displayed information includes airplane heading; airplane track; route of flight; curved trend vector(s); range to altitude; wind direction and velocity; distances; ETA's; altitude constraints; FMC database airports, navaids, waypoints; VOR/ADF bearing radials; ADF bearing pointers (on some airplanes); and weather radar displays.
The map display is a “track–up” oriented display on some airplanes and a “heading–up” oriented display on other airplanes.
CTR MAP Mode
The CENTER MAP mode provides the same data as the MAP mode with the exception that the airplane symbol is located at the center of the display so that map data behind the airplane is within the viewing area.
FULL and EXP NAV Modes (as installed)
The navigation mode is used when a conventional display of FMC navigation
course deviation is desired. In addition to the conventional FMC course deviation
data displayed, the NAV mode also displays distance to the active waypoint, active
waypoint identifier, ETA's or ETE's, ADF bearing pointers (if an ADF bearing is
being received), wind direction and magnitude, and system source annunciation.

The NAV mode may be displayed with a conventional, FULL compass rose, or

with a simplified, EXPANDED compass rose format.
The NAV mode display is a “track–up” oriented display on some airplanes and a
“heading–up” oriented display on other airplanes.
　
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