Garmin GNS 480, Installation Manual

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Troubleshooting
4-4 560-0982-01 Rev A GNS 480 (CNX80) Installation Manual
Table 4-1. Troubleshooting Guide
Problem Possible Cause Solution
ARINC 429 device is
not receiving data
from the GNS 480.
•
GNS 480 ARINC 429 output not
configured correctly.
•
ARINC 429 output port speed not
correct
•
Wiring connections are incorrect.
•
Check ARINC 429 output port setting
for port that device is connected to.
•
Check ARINC 429 output port speed
setting for port that device is connected
to and verify that the speed is correct for
that device.
•
Check wiring.
RS232 device is not
communicating with
the GNS 480.
•
GNS 480 RS232 port not
configured correctly.
•
Improper setup on the remote
device.
•
Device not compatible, or
improper connection.
•
Multiple Tx lines connected
together (not applicable to dual
GNS 480’s controlling the SL70).
•
Check RS232 port setting for port that
device is connected to.
•
Verify the configuration of the other
device.
•
Verify GNS 480 Rx is connected to
remote device Tx and GNS 480 Tx is
connected to remote device Rx.
•
Verify that there is only one Tx source
per Rx port (not applicable to dual GNS
480’s controlling the SL70).
4.2 C
ONTACTING THE
F
ACTORY FOR
A
SSISTANCE
If the GNS 480 unit fails to operate despite troubleshooting efforts, contact Garmin Technical Support
for assistance.
GARMIN International, Inc.
1200 East 151
st
Street
Olathe, KS 66062-3426
USA
Phone: (913) 397-8200
FAX: (913) 397-8282
http://www.garmin.com
Be prepared to offer the following information about the installation:
•
Installation configuration (list of any accessories)
•
Model number, part number with mod levels, and serial number
•
Software Versions
•
Description of problem
•
Efforts made to isolate the problem