TruTrak EFIS AP (8300-057C) - Manual (Page 8)

Operating controls
As with our autopilot products, extensive attention has been given to providing the simplest operation.
No sequential pressing of buttons is required to reach basic control functions and no additional button
pressing is required to set values.
Button labels
– White - mode is OFF
Green - mode is
ON
Click – Momentarily push and release
any knob or button
Press – Push and hold any knob or
button for 2 seconds and release
Enter – Click appropriate knob
BARO & TRK SELECTION
In the TruTrak EFIS display, both barometer BARO and direction TRK are set by rotation of dedicated
knobs.
DIMMING
Dimming of the display is accomplished by a Click of the left knob
[DIM] and then rotating the knob Counter Clock wise to reduce the
display illumination. External dimmer input will only control the
button illumination.
DIRECTION GYRO
Normally this adjustment will not be necessary, as the HSI will be
slaved to a GPS NMEA source. If there is a loss of the GPS source
then the internal gyro backup will maintain the DG. Click the soft key
(button) beneath SET DG provides a screen for correction of any drift
in the DG that may occur by rotating the left knob to set the DG, and
then click ENTER.
Natural progression will be reduced with repeated DG SET.
TruTrak Flight Systems 6 EFIS Autopilot Installation Manual
April 2009 8300-057 Rev D