SkyView System Installation Guide - Dynon Avionics

SV-D700 / SV-D1000 Installation and ConfigurationAudio OutputAudio Output Electrical ConnectionsDynon recommends that SkyView’s audio outputs be connected to an unmutedinput on your audio panel or intercom. When connected this way, critical audioalerts are not muted by ATC transmissions or other audio events that could causeSkyView’s audio to be suppressed if it were connected to a muting input.This output cannot be hooked in parallel with a radio to a headset. Doing so willsignificantly reduce the volume of the radio output, possibly to the level that it isnot usable. An intercom or audio mixer is required to utilize this output.If you are converting a Dynon D10/D100 product installation to a SkyViewinstallation, you should remove the variable resistor that is connected to theexisting audio output wiring: SkyView has software-based volume controls.The audio outputs on pins 13 and 31 (left and right, respectively) of the display’s D37 connectorcan drive audio panel or intercom auxiliary inputs. When interfaced with such devices, they cangenerally be used with any input designated as an auxiliary input without any external resistorsor other components needed between the SkyView and the intercom.Use left and right audio outputs for stereo mode. If the audio panel or intercom only supportsmono input, short the left and right audio outputs together and connect them to the monoinput on the device. To minimize noise, ensure that your SkyView audio ground and intercom oraudio panel ground are directly connected together, even though they nominally share acommon ground via other aircraft wiring (audio ground is pin 30 on the D37).If there is more than one display on a SkyView network, you MUST connect all displays’ audiooutputs to the same audio panel input to ensure that audio is always heard. Electrically shortthe respective left and right outputs together for stereo mode (i.e., left-to-left and right-toright)or connect all audio outputs together for mono mode. The same rule applies for audiogrounds.To minimize the possibility of audio “humming”, a 16 AWG wire may optionally be connectedbetween the ground point for the intercom/audio panel/radio(s) and SkyView display case(s).To attach the wire to the SkyView display case, a 4-40 x 3/16” long screw may be screwed intothe threaded boss above the USB ports on the back of the SkyView display.Audio output volume will be controlled via the interface on a SkyView display, so no externalhardware components are required. The audio output from SkyView has a maximum output of10V p-p with 50 ohms of source impedance.SkyView Audio Output SettingsGo to SETUP MENU > SYSTEM SETUP > AUDIO SETUP to configure audio output settings. Mostof the items in this menu control whether the audio output for a particular alert or alert4-18 SkyView System Installation Guide - Revision O