Appendix A: Maintenance and Troubleshooting
15-6 SkyView System Installation Guide - Revision K
Brightness Level Output
SkyView displays can output a brightness level signal to control the brightness of compatible
external equipment screens. The level of the output is shown here. This feature is not
supported in the current release of SkyView.
Contact Input Status
Each SkyView display has four contact inputs. The status of each contact input is shown here as
either HIGH or LOW. This feature is not supported in the current release of SkyView.
Serial Port Status and Current Baud Rate
Each SkyView display has five general purpose serial ports. The status of each serial port is
shown with transmit (TX) and receive (RX) character counters and the ports current baud rate.
The character counters show any outgoing or incoming character and roll over at 9999.
Button and Joystick States
The state of each button is shown on the BUTTON STATE line. You will see 1 2 3 4 5 6 7 8 on the
line. When you press a button, its respective number on the button state line is replaced with
an asterisk (*). For example, if you press and hold button 3, you will see 1 2 * 4 5 6 7 8.
The state of each joystick is shown on the JOYSTICK STATE line. Each joystick is denoted with an
L or R (left or right, respectively), a counter to show joystick turns, and the letters UDLRC to
denote moving the joystick Up, Down, Left, Right, and Center (when pressed like a button).
Operational Hours
This is a running count of the hours a screen has been on since was initially manufactured.
Instructions for Continued Airworthiness
Follow these steps for continued airworthiness:
Conduct any periodic checks that are mandated by local regulations (IE, FAA for US
Aircraft).
Annually test the optional backup battery (SV-BAT-320).
Any other issues should be addressed on an as-needed basis.
Annual Backup Battery Test
Perform this test on a yearly basis to ensure each backup battery in the SkyView system is fully
functional. A fully charged SV-BAT-320 should power a typical SkyView system for at least 60
minutes if primary power is lost.
If the SkyView system has more than one display with a backup battery installed, perform the
test for each display individually. Power off all but one display during the test.
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