Reversion Mode Check; Figure 9-4, Gdu Reversionary Mode - Garmin G1000 Nxi System Maintenance Manual

Step
PFD1 Display Failure Condition:
1. Open PFD 1 PRI and PFD1 SEC circuit
breakers.
2. Verify desired results.
3. Close PFD 1 PRI and PFD1 SEC circuit
breakers.

Reversion Mode Check

Push the red DISPLAY BACKUP button on the pilot-side GMA 1347D. Verify that the
pilot-side PFD and MFD displays enter reversion mode (See Figure 9-4). MFD should
have valid altitude, airspeed, vertical speed, COM 1, COM 2, NAV 1, NAV 2 and engine
instruments.
De-activate pilot-side reversion mode by pushing the DISPLAY BACKUP button. Verify
PFD1 and MFD return to normal display modes.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Desired Result
For a PFD1 failure condition, the following shall occur:
•
PFD1 goes blank.
•
PFD2 and MFD remain in normal display formats. The
following illuminate on PFD2:
o
o
o
o
o
•
GMA1 Fail – GMA1 is inoperative.
•
XPDR1 Fail – XPDR1 is Inoperative.

Figure 9-4, GDU Reversionary Mode

A white HDG box adjacent to the heading window
A white ROL box adjacent to the roll scale.
A white PIT box adjacent to the pitch ladder
A white IAS box in the airspeed tape
A white ALT box in the altitude tape
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