Why Garmin sidetone level is too low or too high?
If the sidetone level is too low or too high, it could be due to the wrong type of headsets, or the level simply needs adjustment. If necessary, adjust the sidetone level on the COM Setup page.
How to fix a Garmin 400W,GNC 420W 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.
Why Garmin 400W,GNC 420W GPS 400W Series unit does not power on?
If your Garmin 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. Also, check the circuit breakers and main avionics switch.
Why won’t my Garmin 400W,GNC 420W GPS 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.
What should I do if the VLOC remote transfer key is stuck on my Garmin 430W?
The remote VLOC transfer switch is stuck in the enabled (or “pressed”) state. Try pressing the switch again to cycle its operation.
What does basemap database integrity error mean for Garmin GPS?
This error indicates that the 400W Series unit has detected a failure in the built-in basemap (land data) database. To resolve this, reload the basemap database.
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 is ARINC 429 device not receiving data from Garmin 400W,GNC 420W GPS 400W Series unit?
If an ARINC 429 device isn't receiving data from the Garmin GPS 400W Series unit, it could be due to a few reasons. Check the ARINC 429 output port setting on the 400W Series unit for the port that the device is connected to. Also, verify that the ARINC 429 output port speed setting is correct for that device. Finally, check the wiring connections to ensure they are correct.
What to do if GDL 69 is not responding on Garmin 400W,GNC 420W?
No data is being received from the GDL 69. Check for proper configuration and wiring.
What to do if Garmin GPS signal levels drop when avionics are turned on?
If the GPS signal levels drop when you turn on your avionics, it's likely due to noise interference from other avionics. To resolve this, turn off all avionics and then turn them on one at a time to identify the source of the interference. Also, try routing the GPS cable and positioning the GPS antenna away from potential interference sources.
General| Display | 5.0" diagonal, 256 colors TFT |
|---|---|
| Resolution | 320 x 234 pixels |
| WAAS | Yes |
| Operating Temperature | -20°C to +55°C |
| Update Rate | 1 Hz |
| Database | Jeppesen |
| COM Frequency Range | 118.000 to 136.975 MHz |
| COM Channel Spacing | 25 kHz |
| NAV Frequency Range | 108.00 - 117.95 MHz |
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