Instruction Manual

Page 5-92 G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air
Revision 9 190-00915-01
5.25.2 Lift Transducer Functional Pinout
Pin I/O Function Information
1 O Slow Secondary Pin (Hi) Vane resistance Pins 6 to 7 (Lo) = 70 ohms
Fast Secondary Pins 3 to 4 (Lo) = 320 ohms
Slow Secondary Pins 1 to 4 (Lo) = 320 ohms
Center E-Core Primary
Pins 2 to 5 (Lo) = 140 ohms
Self-Test coil Pins 8 to 7 (Lo) = 50 ohms.
All resistances are +/- 20%
2 I Center E-Core Primary Pin (Hi)
3 O Fast Secondary Pin (Hi)
4 Secondary Pin (Lo)
5 I Center E-Core Primary Pin (Lo)
6 I Vane Heater Pin (Hi)
7 Vane Heater Pin (Lo)
8 I Self Test Coil Pin (Hi)
Transducer Mounting Plate heater resistance is 2.1 ± 20% ohms at ambient temperature
5.26 GDL 59 Troubleshooting
Symptom Recommended Action
No communication with GDL 59
• Check power wiring and pin out of GDL 59 unit.
• Ensure GDL 59 configuration option has been loaded.
No or low-quality wi-fi signal
• Verify that a wi-fi network is configured and available.
• Ensure the wi-fi antenna is within range of a wi-fi network.
• Remove any obstacles between the aircraft wi-fi antenna and the wi-fi
network hub that may be blocking the signal.
• Check the wi-fi antenna cable and connectors.
• Verify antenna ground plane is adequate.
Connects to wi-fi but cannot send
report data
• Activate Garmin Connext (reference Section 7.28). Note that a replacement
GDL 59 unit must be registered again, even if the MFD already shows
REGISTERED.