Problem
unit (ARINC 429
• ARINC 429 output port speed
Roll Steering used)
• Wiring connections are
• Certain autopilots require
• Desired RMI source has not
RMI pointer does
not indicate correctly
• Wiring connections are
• Incorrect configuration.
Tuning data not
updating DME
• Wiring connections are
• 400W Series unit ARINC 429
ARINC 429 device
is not receiving data
from the
400W/420W/430W.
• ARINC 429 input port speed
• Wiring connections are
• 400W Series unit RS-232 port
RS-232 device is
not communicating
• Improper setup on the remote
with the
400W/420W/430W.
• Device not compatible, or
• Multiple TX lines connected
• Wiring connections are
400W Series
Instructions for Continued Airworthiness Bell 206B
Possible Cause
not correct.
incorrect.
groundspeed for GPSS to be
enabled.
been selected.
incorrect.
incorrect.
output not configured correctly.
not correct
incorrect.
not configured correctly.
device.
improper connection.
together.
incorrect.
Solution
• Check ARINC 429 output port speed
setting for port that autopilot is
connected to and verify that the
speed is correct for autopilot.
•
Check wiring. Must be connected to
main GPS 429 output.
• Ensure that groundspeed is provided if
required by the autopilot.
•
Check the OBI source selection on
the Main CDI/OBS Config page.
•
Check wiring.
•
Check the DME Channel Mode on
the VOR/LOC/GS CDI page.
•
Check wiring.
•
Check ARINC 429 output port setting
for port that device is connected to.
•
Check ARINC 429 input port speed
setting for port that device is
connected to and verify that the
speed is correct for that device.
•
Check wiring.
•
Check RS-232 port setting for port
that device is connected to.
•
Verify the configuration of the other
device.
•
Verify 400W Series unit RX is
connected to remote device TX and
400W Series unit TX is connected to
remote device Rx.
•
Verify that there is only one TX
source per RX port.
•
Check wiring.
190-01226-04 Rev. 2
Page 10 of 22
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