G1000 Normal Mode Check; G1000 Reversionary Mode Check - Garmin G1000 Maintenance Manual

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7.2.4 GDU Testing
If the display is removed or replaced, the following tests are recommended.
1. Allow displays to initialize.
2. Check that all COM/NAV display fields are valid in the top corners of the display.
For PFD: Check that attitude, heading, altitude, airspeed, vertical speed and OAT fields are
valid within 2 minutes of power up.
For MFD: Check that the engine instrument fields are valid.
3. Push the red display reversion button on the GMA 1347. Verify both displays enter
reversionary mode (both should have valid attitude, heading, altitude, airspeed, vertical
speed, and engine instruments):
4. De-activate reversionary mode by pushing the red reversion button again.
5. Verify Optional Features and Equipment (if equipped; i.e. ADF, DME, TAWS, ChartView,
etc.) are operational.
6. On the PFD, press the ALERTS softkey. Correct any PFD/MFD Alert messages.
Page 7-6
Rev. B
Figure 7-3. G1000 Normal Mode Check
Figure 7-4. G1000 Reversionary Mode Check
G1000 System Maintenance Manual
190-00907-00