Operations if Avionics Power is Lost / SV-BAT-320 Backup Battery
11-2 SkyView HDX Pilot’s User Guide – Revision B
Loss of Avionics Power On Ground
If a SkyView HDX display with an installed SV-BAT-320 is stationary / on the ground (not in
flight), and Avionics power is lost, the SkyView HDX will display:
POWERING DOWN IN xx SECONDS
and count down from 30 seconds. The MAIN MENU will change to display two buttons:
STAY ON
POWER OFF
If neither button is pushed, the countdown will progress to 0 and then the SkyView HDX display
will shut off. This feature minimizes backup battery discharge when on the ground and
master/external power is shut off normally.
During the 30-second countdown, you can press the PWR OFF button to turn off the SkyView
display immediately.
During the 30-second countdown, you can press the STAY ON button to keep the SkyView HDX
display and SkyView system operating until the SV-BAT-320’s charge is depleted.
When the SkyView HDX display and SkyView system is operating solely on power
from the SV-BAT-320, and you wish to power off the SkyView HDX display to
conserve available power in the SV-BAT-320, you can push and hold Button 1 to
manually power off the SkyView HDX display.
On SV-BAT-320 Backup Battery – Operational Subsystems
The following SkyView HDX system units are powered by a SkyView HDX display / SV-BAT-320
and thus will remain functional if Avionics power is lost during flight:
• SkyView HDX display
• SV-GPS-250/2020 GPS Receiver (MAP functions will be normal)
• SV-ADAHRS-20X ADAHRS Module (PFD functions
• SV-EMS-220/221 Engine Monitor Module (ENGINE functions will be normal)
o Includes engine sensors that require power to operate
• SkyView SV-ARINC-429 ARINC-429 Module*
• SV-KNOB-PANEL Knob Panel
• SkyView Video Input Adapter*
• SkyView Wi-Fi Adapter*
* Although this unit is powered by the SkyView HDX display and will thus function during the
loss of Avionics power, it is typically connected to units that require Avionics power, and thus
that subsystem may not function when Avionics power is lost.
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