500W Series
190-01226-03 Rev. 5
Instructions for Continued Airworthiness Bell 206B
Page 12 of 23
Problem Possible
Cause
Solution
OBS indication on
500W Series unit
does not agree with
OBS setting.
500W Series unit resolver input
not calibrated correctly.
Resolver has not been
calibrated.
Check wiring and calibration.
500W Series unit is
not receiving
heading from
compass system
(ARINC 429
heading input used)
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.
Wiring connections are
incorrect.
Check
wiring.
RMI pointer does
not indicate correctly
Desired RMI source has not
been selected.
Check the OBI source selection on
the Main CDI/OBS Config page.
Wiring connections are
incorrect.
Check
wiring.
Tuning data not
updating DME
Incorrect configuration.
Check the DME Channel Mode on
the VOR/LOC/GS CDI page.
Wiring connections are
incorrect.
Check
wiring.
ARINC 429 device
is not receiving data
from the
500W/530W.
500W 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.
Wiring connections are
incorrect.
Check
wiring.
RS-232 device is
not communicating
with the
500W/530W.
500W 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 500W Series unit RX is
connected to remote device TX and
500W 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.
Wiring connections are
incorrect.
Check
wiring.
Fan Fail
Annunciation.
Wiring connections are
incorrect.
Check
wiring.
Fan has failed.
Replace
fan.
Summary of Contents for 500W Series
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