Table 4-5 Vloc/Gs Alert Troubleshooting Guide - Garmin GTN 6 Series Maintenance Manual

4.3.1.3 VLOC/GS Related Alerts
Alert Text
VLOC RECEIVER
The GTN 650/750 has
- Navigation
detected a failure in its
receiver needs
navigation receiver.
service.
VLOC RECEIVER
The GTN 650/750 has
- Navigation
detected an internal failure in
receiver has
its VLOC receiver.
failed.
GLIDESLOPE -
The GTN 650/750 has
Glideslope
detected an internal failure in
receiver needs
its glideslope receiver.
service.
GLIDESLOPE -
The GTN has detected an
Glideslope
internal failure in its
receiver has
glideslope receiver.
failed.
REMOTE KEY
NAV remote transfer key is
STUCK - NAV
stuck in the enabled or
remote transfer
pressed state.
key is stuck.
190-01007-B1
Rev. 4

Table 4-5 VLOC/GS Alert Troubleshooting Guide

Possible Cause
GTN 6XX/7XX Part 27 AML STC Maintenance Manual
Corrective Action
Contact Garmin Product Support.
Contact Garmin Product Support.
Contact Garmin Product Support.
Contact Garmin Product Support.
Press the NAV remote transfer switch to cycle its
operation.
Go to the GTN Diagnostics - Discrete Inputs
page in Configuration mode and check that the
state of the input changes when the NAV remote
transfer switch is pressed and released.
Verify the NAV remote transfer switch wiring is
correct.
If the problem persists, contact Garmin Product
Support.
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