The Autopilot disconnect button should be in a very accessible location, usually mounted
to the stick or yoke. The panel mounted version is mounted on the panel and should be
located toward center of aircraft. This button’s primary purpose is to immediately
disengage the autopilot. It is also required for autopilot calibration, control wheel steering
functionality, and can be used to engage the autopilot.
19.1 Yoke-mounted Button
This button should be a red single pole, normally open, momentary button with a positive
click when closed. Verify that two (2) terminals of the button are shorted when the button
is pressed and open (no-connect) when the button is released. One (1) terminal of the
button should connect to the servos’ yellow wires, and the other should connect to ground.
A 4.7 - 5.3k ohm resistor across the yoke-mounted A/P DISC is required. This allows
SkyView to detect a break in this circuitry and alert the pilot if this resistor is present in
the installation. Set SETUP MENU > AUTOPILOT SETUP > DISENGAGE BUTTON >
ENABLE BROKEN LINE DETECT to “YES.”
During bootup, SkyView checks the status of the A/P DISC button. If SkyView detects
that the button is pressed (the input is grounded) during bootup, the A/P DISC button is
assumed to be stuck (or incorrectly installed), resulting in:
1. A CAUTION message is displayed: AP DISCONNECT STUCK, and
2. The Autopilot (AP) cannot be engaged for the remainder of the time SkyView is
operational (The system will be checked again at next bootup).
19.2 SV-BUTTON-APDISC
The SV-BUTTON-APDISC Autopilot Disconect Button can be installed in the instrument
panel and wired to SkyView.
This button is backlit, and the degree of backlighting is controlled by SkyView. It is the
same width, and similar appearance, as Dynon Avionics panel units such as SV-AP-
PANEL, SV-COM-PANEL, SV-KNOB-PANEL.
The Autopilot Disconect button will disengage the autopilot when depressed.
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