User Guide

190-00571-00 Rev. A Garmin G1000 System Overview for the Beechcraft A36/G36

2-11

SYSTEM OVERVIEW

2.6 DISPLAY BACKLIGHTING

The G1000 PFD and MFD displays use photocell

technology to automatically adjust for ambient lighting

conditions. Photocell calibration curves are pre-conﬁg-

ured to optimize display appearance through a broad

range of cockpit lighting conditions. The PFD, MFD, and

GMA 1347 bezel/key lighting is typically controlled di-

rectly by the existing instrument panel dimmer bus.

If desired, the PFD and MFD display backlighting can

be adjusted manually. The PFD, MFD and GMA 1347

bezel/key brightness can also be adjusted manually. The

GMA 1347 bezel/key brightness is directly tied to the

MFD bezel/key adjustment.

NOTE: Refer to the Primary Flight Display Pilot’s

Guide for instructions on adjusting backlighting

manually.

2.7 SYSTEM OPERATION

Normal Mode

The PFD and MFD are connected together on a single

Ethernet bus, allowing for high-speed communication be

tween the two units. Each GIA 63 is connected to a single

display, as shown in Figure 2.2.1. This allows the units to

share information, thus enabling true system integration.

In normal operating mode, the PFD displays graphical

ﬂight instrumentation instead of the traditional gyro in-

struments. Attitude, heading, airspeed, altitude and verti

cal speed are all shown on one display. The MFD shows a

full-color moving map with navigation information. Both

displays offer control for COM and NAV frequency selec-

tion, as well as for the heading, course/baro and altitude

reference functions. On the left of the MFD display, the

Engine Indication System (EIS) cluster shows engine and

airframe instrumentation. Figure 2.7.1 gives an example

of the G1000 system in normal mode.

Figure 2.7.1 Normal Mode