Display Backlighting; Automatic Adjustment; Manual Adjustment - Garmin G1000 Pilot's Manual

SYSTEM OVERVIEW

1.8 DISPLAY BACKLIGHTING

The G1000 display and control backlighting can be adjusted either automatically or manually.

AUTOMATIC ADJUSTMENT

The existing instrument panel dimmer bus normally controls the PFD and MFD backlighting as well as the
PFD and MFD bezels, MFD Control Unit, AFCS Control Unit and audio panel key annunciator lighting. When
the dimmer bus is not used by the G1000 system, photocell technology automatically controls backlighting
adjustments. Photocell calibration curves are pre-configured to optimize display appearance through a broad
range of cockpit lighting conditions.

MANUAL ADJUSTMENT

The avionics dimming knob may also be used to adjust backlighting. Refer to the POH for details.
NOTE:
In normal mode, backlighting can only be adjusted from the PFD. In reversionary mode, it can also
NOTE:
be adjusted from the MFD.
No other window can be displayed on the PFD while the PFD Setup Menu Window is displayed.
NOTE:
Backlighting may also be adjusted manually for all of the displays and the associated bezels. The audio panel
key backlighting is directly tied to the PFD key backlighting setting.
Adjust display backlighting manually:
1) Press the MENU Key on the PFD to display the PFD Setup Menu Window. 'AUTO' becomes highlighted to the
right of 'PFD DSPL'.
2) Turn the small FMS Knob to display the selection box. Turn the FMS Knob to select 'MANUAL', then press the
ENT Key. The intensity value becomes highlighted.
3) Turn the small FMS Knob to select the desired backlighting, then press the ENT Key.
4) Turn the large FMS Knob to highlight 'AUTO' to the right of 'MFD DSPL' and repeat steps 2 and 3.
5) Press the CLR or MENU Key to remove the PFD Setup Menu Window from the display.
1-44
Figure 1-35 Manual Display Backlighting Adjustment
Garmin G1000 Pilot's Guide for Cessna Nav III 190-00498-01 Rev. A