Garmin GTN 6 series Maintenance Manual - page 38
GTN 6XX/7XX Part 27 AML STC Maintenance Manual
190-01007-B1
Page 4-6
Rev. 1
CONFIGURATION MODULE
- GTN configuration module
needs service.
The GTN configuration module has failed.
Verify the configuration module wiring is correct.
Replace the configuration module.
The GTN configuration module is incorrectly
wired.
REMOTE KEY STUCK -
Remote OBS key is stuck.
The remote OBS switch is stuck in the
enabled or pressed state.
1.
Press the switch again to cycle its operation.
2.
Go to the GTN DIAGNOSTICS - DISCRETE INPUTS page in configuration
mode and check that the state of the input changes when the OBS switch is
pressed and released.
3.
Verify that the remote OBS switch wiring is correct.
Contact Garmin Product Support.
REMOTE KEY STUCK -
Remote CDI key is stuck.
The remote CDI key is stuck in the enabled or
pressed state.
1.
Go to the GTN DIAGNOSTICS - DISCRETE INPUTS page in configuration
mode and check that the state of the input changes when the CDI switch is
pressed and released.
2.
Verify that the CDI switch wiring is correct.
3.
Press the switch again to cycle its operation.
Contact Garmin Product Support.
COOLING FAN - The cooling
fan has failed.
The wiring to the fan may be faulty, the fan
connector may be unplugged, or the fan may
have failed.
1.
Check the wires between P1001-43, -58,
and -59 and the fan to ensure they are not cut, damaged, or broken. Ensure
the fan connector is completely engaged. Also ensure the fan blades are not
obstructed and they can rotate freely.
2.
The fan does not turn on if the unit is cool.
Table 4-2. Alert Text Troubleshooting Guide
Alert Text
Possible Cause
Corrective Action