To Next PageTo Next PageWhat does Garmin configuration error - Config service req’d mean?
If you see a “Configuration error - Config service req’d” message, it indicates that the configuration information has been lost or corrupted. Reconfigure the unit.
How to fix a Garmin GPS 400W Series unit that does not power on?
If your Garmin GPS 400W Series unit isn't powering on, the issue might be a lack of 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. Also, check the circuit breakers and the main avionics switch.
What to do if my Garmin GPS 400W Series unit does not compute a position?
If your Garmin GPS 400W Series unit isn't computing a position, it could be due to not receiving signals. Check the GPS antenna connections and ensure the aircraft is clear of obstructions like hangars, buildings, or trees. Alternatively, the unit may need to complete its cycle, so wait 20 minutes.
Why won’t my Garmin 400W OBS resolver calibrate?
If the OBS resolver won’t calibrate, it could be due to an incompatible resolver or an improper connection. Check the resolver specifications and wiring.
Why is my autopilot not getting GPSS/Roll Steering data from the Garmin 400W Series GPS unit?
If the autopilot isn't receiving GPSS/Roll Steering data, several factors could be at play. First, the 400W Series unit may not have a position or a flight plan entered; acquire a GPS position and enter a flight plan. Also, the 400W Series unit ARINC 429 output might not be configured correctly; check the ARINC 429 output port setting for the port that the autopilot is connected to and verify that the speed is correct for the autopilot. Incorrect wiring connections can also be a factor; check the wiring, ensuring it's connected to the main GPS 429 output. Finally, some autopilots require groundspeed for GPSS to be enabled; ensure that groundspeed is provided if required by the autopilot.
Why is my Garmin 400W Series unit not receiving heading from the compass system?
If the 400W Series unit isn't receiving heading from the compass system (ARINC 429 heading input used), the ARINC 429 input port speed may not be correct. 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. Also, incorrect wiring connections could be the cause; check the 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 does 'Data transfer error, please re-transmit' mean on my Garmin?
This message indicates that an error was detected during unit-to-unit crossfill of user data (user waypoints and/or flight plans). The data transfer should be re-attempted.
Why Garmin 400W Series GPS unit does not compute a position?
If your 400W Series unit isn't computing a position, there could be a few reasons: * Not receiving signals: Check the GPS antenna connections and ensure the aircraft is clear of obstructions like hangars, buildings, and trees. * Unit cycling: Wait 20 minutes for the unit to complete its cycle.
General| Interface | RS-232 |
|---|---|
| Receiver Type | WAAS-enabled |
| Display | Color LCD |
| Database | Jeppesen |
| Interfaces | RS-232 |
| Certifications | TSO-C146a |
Provides an overview of the 400W Series units, including display and data card information.
Lists physical and general specifications for the 400W Series units.
Details the performance specifications for the GPS receiver.
Outlines the technical specifications for the COM transceiver functions.
Details the performance specifications for the VOR receiver.
Details the performance specifications for the LOC receiver.
Details the performance specifications for the Glideslope receiver.
Lists approved antennas and their operational limitations.
Details TSO authorizations and advisory circular references.
Outlines the required items for VFR and IFR installations.
Discusses mounting location considerations for various antennas.
Details pilot view centerline and acceptable field-of-view for annunciations.
Guidelines for installing wiring harnesses and ensuring system separation.
Provides instructions for rack installation and unit insertion/removal.
Information on GPS antenna cable installation and connector assembly.
Details pin functions for the P4001 Main Connector.
Describes the function and electrical characteristics of the main indicator.
Guides through accessing and operating configuration pages.
Configures GPS ARINC 429 output and input ports.
Allows changing selectable RS-232 inputs/outputs to match installed equipment.
Allows configuration of Fuel, Terrain, and Discretes options.
Verifies CDI outputs, LAT/VERT, and calibrates the OBS input.
Procedures for verifying system functions in configuration mode.
Procedures for verifying system functions in normal operating mode.
Verifies GPS signal acquisition and reception.
Checks for interference between COM and other aircraft avionics.
Verifies proper communication with interfaced systems.
Describes flight tests to verify system operation and performance.
Verifies GPS position and flight plan data during maneuvering.
Tests VHF COM transceiver performance with a ground station.
Verifies VOR reception, audio quality, and navigation flags.
Verifies ILS reception, audio quality, and navigation flags.
Tests autopilot coupling with GPS and NAV modes.
Provides a guide to diagnosing and resolving installation issues.
Lists common alerts, their possible causes, and solutions.
Details limitations for GPS/WAAS operation under Instrument Flight Rules.
