190-01717-B1
G500/G600 TXi Part 23 AML STC Maintenance Manual
Rev. 1
Page 5-39
5.13 Calibration
This section provides guidance for calibrating the G500/G600 TXi system if the previous calibration has
become invalid. Most calibrations require the use of an installer unlock card and must be performed by a
Garmin dealer.
5.13.1 Attitude/Heading
Attitude and heading calibration requires the use of an Installer unlock card. If it becomes necessary to re-
calibrate any installed AHRS, refer to the calibration procedure contained in Sections 5 and 6 of the G500/
G600 TXi Part 23 AML STC Installation Manual (P/N: 190-01717-B3)
5.13.2 Autopilot Calibration
Autopilot calibration requires the use of an Installer unlock card. If it becomes necessary to re-calibrate the
autopilot, refer to the calibration procedure contained in the G500/G600 TXi Part 23 AML STC
Installation Manual (P/N: 190-01717-B3)
5.13.3 Analog NAV Calibration
Analog Nav calibration requires the use of an Installer unlock card. If it becomes necessary to re-calibrate
the Analog Nav, refer to the calibration procedure contained in the G500/G600 TXi Part 23 AML STC
Installation Manual (P/N: 190-01717-B3)
5.13.4 Fuel Level Calibration
Fuel level calibration requires the use of an Installer unlock card. If it becomes necessary to re-calibrate the
fuel level, refer to the calibration procedure contained in the G500/G600 TXi Part 23 AML STC
Installation Manual (P/N: 190-01717-B3).
5.13.5 Backup Battery Check
This procedure will analyze the voltage and discharge qualities of the installed backup battery. The
procedure is required to be completed on initial installation and every 12 calendar months when a backup
battery is installed in the system. A yellow “X” will be displayed over the battery level indicator and a fault
indication message will be displayed in normal mode until this procedure is completed.
NOTE
The battery rundown test may take up to 60 minutes to complete.
NOTE
The battery rundown test date is reported in UTC.
To complete the backup battery test, complete the following steps.
1. Power the GDU 700P in configuration mode navigate to
Calibration/Test
→
Backup Battery Test
.
2. Verify that the Backup Battery status icon is green.
3. Verify that the battery state is not
Discharging
annunciated under Battery State
.
4. Complete the on-screen
Before Test
instructions. Once all checklist items have a green check
mark, the
Start
selection will become active.
5. Select
Start
and follow the on screen commands.
6. The GDU 700P will power off automatically when the test is complete.
7. Power up the unit in configuration mode and verify a PASS was achieved.