Garmin 500W Series Instructions Manual - Page 16

Browse online or download pdf Instructions Manual for GPS Garmin 500W Series. Garmin 500W Series 26 pages. Continued airworthiness
Also for Garmin 500W Series: Pilot's Manual Addendum (24 pages), Supplemental Flight Manual (17 pages), Pilot's Manual Addendum (50 pages), Quick Reference (25 pages), Instructions Manual (11 pages), Instructions Manual (23 pages)

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Garmin 500W Series Instructions Manual
Problem
RS-232 device is not
communicating with
the
400W/420W/430W.
Fan Fail Annunciation.  Wiring connections are incorrect.
400W Series
Instructions for Continued Airworthiness Bell 407
Possible Cause
 400W Series unit RS-232 port not
configured correctly.
 Improper setup on the remote
device.
 Device not compatible, or improper
connection.
 Multiple TX lines connected
together.
 Wiring connections are incorrect.
 Fan has failed.
Solution
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.
Check wiring.
Replace fan.
190-01226-14 Rev. 3
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