Garmin GTN Xi Series, Руководство по обслуживанию

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190-01007-C1 GTN Xi Part 23 AML STC Maintenance Manual
Rev. 1 Page 5-11
5.3.1.1 COM Related Alerts
Table 5-3 COM Alert Troubleshooting Guide
Alert Text Possible Cause Corrective Action
COM RADIO - COM
radio needs service.
A failure has been detected in
the COM transceiver. The
transceiver may still be
usable.
This message may appear after operations in
Configuration mode. Cycle power to the entire
GTN Xi (both GPS/NAV and COM circuit
breakers) and see if the message has cleared.
Contact Garmin technical support.
COM RADIO - COM
radio may be
inoperative.
The GTN Xi is not able to
communicate with its COM
transceiver.
Verify that COM connector pins P1003-43 and
P1003-44 are receiving aircraft power.
Verify that COM connector pins P1003-37 and
P1003-38 are connected to aircraft ground.
If the message persists, contact Garmin
technical support.
REMOTE KEY
STUCK - COM push-
to-talk key is stuck.
The COM push-to-talk
switch is stuck in the enabled
or pressed state.
Press the PTT switch to cycle its operation.
Navigate to the GTN Diagnostics > Discrete
Inputs page in Configuration mode and check
that the state of the input changes when the
PTT switch is pressed and released.
Verify that the PTT switch wiring is correct.
If the message persists, contact Garmin
technical support.
REMOTE KEY
STUCK - COM
remote transfer key is
stuck.
The COM remote transfer
key is stuck in the enabled or
pressed state.
Press the COM remote transfer switch to
cycle its operation.
Navigate to the
GTN Diagnostics > Discrete
Inputs page in Configuration mode and check
that the state of the input changes when the
COM remote transfer switch is pressed and
released.
Verify that the
COM remote transfer switch
wiring is correct.
If the problem persists, contact Garmin
technical support.
REMOTE KEY
STUCK - COM
remote frequency
increment key is
stuck.
The COM remote frequency
increment key is stuck in the
enabled or pressed state.
Press the COM remote frequency
increment key to cycle its operation.
Navigate to the GTN Diagnostics > Discrete
Inputs page in Configuration mode and check
that the state of the input changes when the
COM remote frequency increment switch is
pressed and released.
Verify that the
COM remote frequency
increment switch wiring is correct.
If the problem persists, contact Garmin
technical support.