Operation Manual

LX90xx system Version 4.0 February 2014
Page 24 of 151
5.2 Switching on the Unit
After a short press of the power-on button the main display unit and vario unit will turn on
and a welcome screen will appear. The first screen shows the boot loader screen followed
by the Linux kernel screen and then the file system screen.
The boot procedure normally takes up to 20 seconds but in the case of a firmware update or
system check it can take more time. The final boot screen displays information about the
LX90xx system firmware and the IGC serial number. When the boot procedure is completed
the profile selection dialogue is shown. Please refer to Chapter 8.1 for more details about
starting up the system.
5.3 User Input
The main display unit user interface consists of many dialogues which have different input
controls. They are designed to make input of names, parameters, etc., as easy as possible.
Input controls can be summarised as:
 Text editor
 Masked text editor
 Spin controls
 Selection control
 Checkboxes
 Colour selector
 Line width selector
To move the function from one control to another, rotate the PAGE selector knob (page
selector) as follows:
 Clockwise rotation will select the next control.
 Counter clockwise rotation will select the previous control. Press the SELECT button
(usually lower-right) to enter control input.