190-01115-01
G3X/G3X Touch Install Manual - GDU 4XX Config and Post Install Checkout
Rev. AC
Page 34-7
34.4.4 LRU Configuration Page
The LRU configuration page is used to configure which optional LRUs are connected to the system. If a
particular LRU is not installed, or a particular LRU function (such as AOA) is not desired, change that
setting on the LRU configuration to "Disabled".
For example, if a GSU 25 is connected as ADAHRS 2 but no GMU or GTP 59 is connected, configure
ADAHRS 2 to "Enabled" and Magnetometer 2 and OAT 2 to “Disabled”. Also change any AOA item to
“Disabled” if the installed ADAHRS LRU does not support AOA (e.g. the GSU 73) or if the AOA
pneumatic connection is not connected to that ADAHRS LRU.
The Engine Interface item is used to configure which numbered EIS LRU(s) should be used. Typically
this should be left configured for EIS1 only, except in the case of a system that includes a GSU 73 and a
GEA 24, the latter of which would be wired as EIS2. In a system that includes dual GEA 24 units used to
monitor twin engines or large single engines, select "Use EIS 1+2" to enable the use of both EIS LRUs.
The Autopilot Servos item is used to configure how many GSA 28 servos are installed. Select "Roll Only"
if a single roll servo is installed, "Pitch + Roll" for a two-axis autopilot servo installation, or "Pitch +Roll+
YD" for a two-axis autopilot installation with a third yaw damper servo.
1. In configuration mode (
), use the Touch Panel or a Move Selector Knob to select and
view the LRU Page.
2. Use the Touch Panel or a Move Selector Knob to select, then enable or disable the listed LRUs.
3. Press the Back key to return to the Configuration Mode page when finished (if desired).
NOTE
Electrical Control System must be enabled to display the Flaps, External Lights, and
Cockpit Lighting configuration pages, as well as the GAD 27 tab on the Engine
Information System Configuration page.
