Fan Interface Check; Radar Altimeter Interface Check; Flight Stream 510 Interface Checks; Bluetooth Setup - Garmin GTN 6 Series Maintenance Manual

6.9 Fan Interface Check

The fan that is mounted to the GTN backplate should be checked after it is replaced. With the GTN unit
running in Normal mode and the fan powered on and running perform, the following steps:
NOTE
Note the fan may take a few minutes to power on if the unit is below normal operating
temperature.
1. Touch the Message Queue key on the home page.
2. Ensure that the "COOLING FAN- the cooling fan has failed" message is not displayed.
6.10

Radar Altimeter Interface Check

Complete the following procedure to check the GTN interface with a radar altimeter:
1. Apply power to the radar altimeter.
2. Power up the GTN in Configuration mode.
3. On the GTN Diagnostics page, verify the GTN is receiving data from the radar altimeter.

6.11 Flight Stream 510 Interface Checks

6.11.1 Bluetooth Setup

When the Flight Stream 510 device is powered on, pairing mode will not be enabled until the Connext
Setup page is opened on the GTN.
The default Flight Stream 510 Bluetooth name is "Flight Stream 510" followed by the last four digits of the
MAC address (e.g., Flight Stream 510 4000). A pop-up will appear on the GTN screen asking for
confirmation of the new Bluetooth pairing. Select Yes to finish pairing the device.
Bluetooth setup only needs to be run when pairing with a device for the first time. Once a connection is
established with a Bluetooth device, the Flight Stream 510 will automatically connect to the Bluetooth
device upon power-up. The Flight Stream may be connected to up to four Bluetooth devices
simultaneously. The Flight Stream 510 will also save up to thirteen Bluetooth device pairings.
1. Enable Bluetooth connectivity on the PED. Once enabled, Flight Stream 510 will be viewable in
the list of available devices.
2. Select the Flight Stream 510 from the list of available Bluetooth devices on the PED.
After pairing the Flight Stream 510 with the PED, verify the device is communicating with the GTN,
GDL 88H (if installed), and GDL 69A (if installed). This test should be performed outside, away from
buildings and large obstructions. If any of the tests below are unsuccessful, refer to Section 4 for
troubleshooting information.

6.11.2 Flight Stream to GTN Interface Check

1. On the Garmin Pilot application, go to the Flight Plan page and create a flight plan.
2. Select the Connext icon at the top of the page.
3. Select the option to send the flight plan to the GTN. If successful, a message will be available on
the GTN.
190-01007-B1
Rev. 4
GTN 6XX/7XX Part 27 AML STC Maintenance Manual
Page 6-24