Garmin Apollo CNX80 Installation Manual page 110

Troubleshooting
Problem
• Desired RMI source has not been
RMI pointer does not
indicate correctly
• Wiring connections are incorrect.
• DME Select is not low
Tuning data not
updating DME
• Wiring connections are incorrect.
• CNX80 ARINC 429 output not
ARINC 429 device is
not receiving data
from the CNX80.
• ARINC 429 output port speed not
• Wiring connections are incorrect.
• CNX80 RS232 port not
RS232 device is not
communicating with
the CNX80. • Improper setup on the remote
• Device not compatible, or
• Multiple Tx lines connected
4.2 C
ONTACTING THE
If the Apollo CNX80 unit fails to operate despite troubleshooting efforts, contact Garmin AT Technical
Support for assistance.
Garmin AT
2345 Turner Rd. SE
Salem, Oregon 97302
USA
Phone: 503.581.8101 or 800.525.6726 (ext. 3991)
http://www.garminat.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
4-4
Table 4-1. Troubleshooting Guide
Possible Cause
selected
configured correctly.
correct
configured correctly.
device.
improper connection.
together (not applicable to dual
CNX80's controlling the SL70).
F
ACTORY FOR
560-0982-00 Rev D
Solution
•
Select desired RMI source from Nav or
GPS.
•
Check wiring
•
Verify DME Select pulled low.
•
Check wiring.
•
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.
•
Check RS232 port setting for port that
device is connected to.
•
Verify the configuration of the other
device.
•
Verify CNX80 Rx is connected to
remote device Tx and CNX80 Tx is
connected to remote device Rx.
•
Verify that there is only one Tx source
per Rx port (not applicable to dual
CNX80's controlling the SL70).
A
SSISTANCE
Apollo CNX80 Installation Manual