Section 32 Gdu 45X/46X Configuration And Post Installation Checkout - Garmin G3X Installation Manual

32 GDU 45X/46X CONFIGURATION AND POST INSTALLATION
CHECKOUT
The checkout procedures in this section are recommended to be performed after installing the G3X. The
calibration procedures are required to be performed after installing the G3X. It is assumed that the person
performing these checks is familiar with the aircraft, has a working knowledge of typical avionics systems,
and has experience using the test equipment defined in this section.
If replacing GDU 37X display(s) with GDU 4XX display(s), the following may be helpful in transferring
some of the stored calibration data.
• As the data stored in the
to GDU 4XX displays, Garmin suggests recording GDU 37X stored calibration data such as
V-speeds, RS-232 settings, ARINC 429 settings, engine gauge configuration, etc. to be used in the
GDU 4XX. This is done by writing down the info or by storing screenshots.
• If reusing the GDU 37X configuration module, it should be erased (after recording stored info per
above) by selecting it on the main config page, pressing the Menu key, and selecting the option to
format the configuration module. Then re-enter the various settings (with changes as required to
accommodate any updated wiring) per
• The fuel level calibration can be backed up/restored by accessing the appropriate calibration page,
pressing the Menu key, and selecting the option to read/write the calibration to/from the SD card
(repeat for each tank) per
• If the ADAHRS LRUs (GMU 44/GSU 25/ GSU 73) are not being replaced or moved, the AHRS
calibration will remained stored/valid, and does not need to be recalibrated.
NOTE
The procedures and screenshots in this section apply to both the GDU 45X and GDU 46X
units. Differences in appearance and layout of the screenshots may exist between the two
models and may differ slightly from the actual displayed image on the GDU 45X/46X.
NOTE
Some procedures in this section require that the GPS receiver is receiving sufficient
satellite signal to compute a present position
site to GPS satellite signals or a GPS indoor repeater.
NOTE
As these procedures involve engine run-up and moving the aircraft, it is recommended that
the installer read this entire section before beginning the checkout procedure.
NOTE
Ensure that all GDU 45X/46XX displays have been updated to the current software
version before performing any post-installation configuration, checkout, or calibration
steps, and before attempting to troubleshoot any issues. Using up-to-date software
ensures that all previous software improvements are available, and is the most effective
first step after powering on the system. See
GDU 45X/46XX software.
190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout
Rev. AA
configuration module cannot be transferred from the GDU 37X displays
Section 32.4.
Fuel Quantity Calibration Data
(Table
Section 32.3.1
Backup.
32-2). This requires outdoor line-of-
for information about updating
Page 32-1