737 Flight Crew Operations Manual
Flight Instruments, Displays Chapter 10
PFD/ND – System Description Section 21
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21 PFD/ND – System DescriptionPFD/ND – System DescriptionFile H ighlight
Introduction
The Common Display System (CDS) supplies information to the flight crew on
six flat panel liquid crystal display units (DUs). The outboard and inboard display
units present all primary flight and navigation information. Primary engine
indications are normally displayed on the upper DU. Secondary engine indications
or system data are normally displayed on the lower DU.
Detailed information on the following subjects is found in other sections of this
chapter:
• Primary Flight Display (PFD)– Section 31
• Navigation display (ND)– Section 41.
Display Brightness Control
Adjustment of the brightness of each DU is controlled by a combination of light
sensors and brightness controls. Two remote light sensors, located left and right
on the top of the glareshield, compensate for the amount of ambient light entering
through the flight deck windows and adjust the brightness of the related DUs.
Each DU also has an integral light sensor which provides automatic control of
brightness as a function of ambient light striking the face of the DU. Brightness
controls are used by the pilot to further adjust the intensity of each display unit.
September 30, 2011
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