How to fix Garmin 400W Series GPS unit that does not power on?
If your 400W Series unit isn't powering on, the issue might be that the unit isn't getting power to the main connector P4001. Ensure power is connected to the main 78-pin connector P4001, pins 19 and 20, and ground to P4001, pins 77 and 78. Check the circuit breakers and main avionics switch as well.
How to resolve Garmin airport database integrity error?
If your 400W Series unit displays an “ database integrity error” message, it means the unit has detected a problem with a database on the NavData card, rendering the data unusable. Try reloading the information onto the card. If the problem persists, replace the card.
How to fix Garmin RS-232 device that is not communicating with the 400W Series unit?
If an RS-232 device isn't communicating with the 400W Series unit, there are several things to check: * 400W Series unit RS-232 port configuration: Check the RS-232 port setting for the port that the device is connected to. * Remote device setup: Verify the configuration of the other device. * Device compatibility and connection: Verify the 400W Series unit RX is connected to the remote device TX, and the 400W Series unit TX is connected to the remote device Rx. * Multiple TX lines: Verify that there is only one TX source per RX port. * Wiring: Check wiring.
How to fix Garmin ARINC 429 device that is not receiving data from the 400W Series unit?
If an ARINC 429 device isn't receiving data from the 400W Series unit, check the following: * 400W Series unit ARINC 429 output configuration: Check the ARINC 429 output port setting for the port that the device is connected to. * ARINC 429 input port speed: Check the ARINC 429 input port speed setting for the port that the device is connected to and verify that the speed is correct for that device. * Wiring: Check wiring.
What causes Garmin tuning data not updating DME and how to solve it?
If the tuning data isn't updating the DME, it could be due to: * Incorrect configuration: Check the DME Channel Mode on the VOR/LOC/GS CDI page. * Wiring: Check wiring.
What does Garmin basemap database integrity error mean and how to fix it?
A “Basemap database integrity error” message on your 400W Series unit indicates a failure in the built-in basemap (land data) database. To resolve this, reload the basemap database.
Why Garmin 400W Series GPS unit is not receiving heading from compass system?
If your 400W Series unit isn't receiving heading from the compass system (when using ARINC 429 heading input), it might be due to: * Incorrect ARINC 429 input port speed: Check the ARINC 429 input port speed setting for the port that the device is connected to and verify that the speed is correct for that device. * Wiring: Check wiring.
How to resolve Garmin data transfer cancelled (version mismatch) error?
A “Data transfer cancelled (version mismatch)” error during a unit-to-unit crossfill indicates that the database versions on the two 400W Series units aren't identical. Update the databases so they match.
How to fix Garmin CDI scaling on EFS 40/50 that is not correct?
If the CDI scaling on your EFS 40/50 is incorrect, it may be because the FMS #1/#2 configuration is not set to “KLN 90-GPS”. Reconfigure EFS 40/50 for “KLN 90-GPS” on FMS #1/#2 inputs, as appropriate.
What to do if Garmin data transfer cancelled (data invalid)?
A “Data transfer cancelled (data invalid)” error during a unit-to-unit crossfill means that an attempt to transfer a single user waypoint was cancelled because no waypoint was specified on the Crossfill Page. Select a user waypoint and re-attempt the transfer.
General| Interface | RS-232 |
|---|---|
| Receiver Type | WAAS-enabled |
| Display | Color LCD |
| Database | Jeppesen |
| Interfaces | RS-232 |
| Certifications | TSO-C146a |
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