G900X/G950 Installation and Maintenance Manual – Troubleshooting
Page D-61
190-00719-00
Revision D
D.9.5.1 Restoring Original Calibration (if needed)
If needed, the original calibration can be restored to the unit using the following steps.
1.
Run GDC_FieldCal.exe.
2.
Select ‘Restore’ from the upper left-hand corner of the page.
3.
Select the CAL_(serial_num)_YYYYMMDD_HHMMSS.txt calibration file to restore to the unit
and click ‘Open’.
Figure D-10. Calibration Files Screen
4.
Select the Serial Port on the PC that will be used to communicate with the GDC 74(X), and click
‘OK’.
5.
A progress bar screen appears while the calibration is being restored to the unit.
6.
If cal restoration is successful, the screen will display ‘Completed’, before returning to the main
entry screen.
7.
Click on ‘Exit’ in the upper left corner to exit the program.
8.
The original calibration is now restored, the unit may be installed in the aircraft (per the
instructions in this manual) to perform the operational system testing portion of 14 CFR Part 43
Appendix E.
