Diamond Aircraft DV 20 E 2022, Airplane Maintenance Manual

Page: 620 / 903

AIRCRAFT
Navigation
DV 20 E AMM
Page 6
15 Mar 2022
34-50-00
Doc # 4.02.25
Rev. 2
The GTN 650 has the following controls:
(a) Left-Hand Knob
Volume / Squelch Knob - controls audio volume for the selected Com radio or Nav receiver and
other volume levels for external audio input devices that are controlled via the GTN interface,
if installed. Pressing the Volume knob momentarily will disable the automatic squelch control
for the Com radio, when active.
(b) Right-Hand Keys and Knobs
HOME Key - displays the Home page, the main screen for accessing the GTN features.
Pressing and holding the HOME key will open the Default Navigation page from any other page.
Direct-To Key - provides access to the direct-to function, which allows you to enter a waypoint
and establishes a direct course to the selected destination.
Large and Small Concentric Knobs - used for data entry, such as in the Waypoint or Direct-To
functions, and to set the frequencies for the communications transceiver or the VOR/Localizer
in units so equipped.
To operate the unit set the ELECTRIC MASTER switch and AVIONICS MASTER switch to ON. The
related circuit-breakers must be closed. Turn the COM power/Volume knob clockwise from the OFF
position. The display will show the frequency last stored in the non-volatile memory. The INST. LT
knob controls the brightness of the display.
Refer to the operators handbook provided with the equipment for additional information.