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