190-02207-A2
GPS 175/GNX 375/GNC 355 Part 23 AML STC Maintenance Manual
Rev. 3
Page 6-9
6.5 Configuration Module Replacement
To replace a GPS 175/GNX 375/GNC 355 configuration module, perform the following procedure:
NOTE
Ensure the current configuration is saved on to an SD card in accordance with the
instructions contained in Section 3.4.6.
NOTE
All item numbers in this procedure reference Figure 6-4.
1. Remove the GPS 175/GNX 375/GNC 355 in accordance with Sections 6.1.1, 6.2.1, or 6.3.1.
2. Remove the backshell cover (
6
) by removing the two screws (
7
).
3. Lift the configuration module (
1
) out of the backshell (
5
) and disconnect the wiring harness (
2
)
from the module.
4. Inspect the wiring harness (
2
) and connector pins (
3
) for damage, loose wiring, or corrosion.
Replace all deficient components if any of these conditions are found.
5. Connect the harness to the new configuration module.
6. Install the new configuration module in the connector backshell (
5
) and re-install the cover (
6
).
7. Re-install the GPS 175/GNX 375/GNC 355 in accordance with Section 6.1.2, 6.2.2, or 6.3.2.
Figure 6-4 Configuration Module Assembly
