LR3/Disco 3
The hard key test is used to determine the function of the two switches integrated into the TSD. Pressing either of the
buttons will turn the corresponding icon on the screen green if it is functioning correctly.
Touch Screen Test Screen
Entering the Touch screen test screen allows the technician to test the physical side of the touch screen. The technician
can choose between checking the screen integrity and re-calibrating the screen. Using the Touch Switch Check button
will display a blank screen. Touching the screen in any place will give a series of co-ordinates. If a faulty area of the
screen is touched the co-ordinates will not display.
Re-calibrating the screen allows the technician to align the touch screen co-ordinates to the pressing of the screen. This
is achieved by pressing a series of on screen targets.
Vehicle Signals
The vehicle signals screen displays the inputs from other vehicle system to the TSD. These signals include:
Battery voltage
Lights (on or off)
Ambient light sensor voltage
Graphic illumination dimming duty
Output audio allocation
PCB temp
Speed inhibit (on or off)
MOST FOT temperature
Parking position (electric park brake on or off)
Backlight PWM duty
Beep volume
Beep tone.
Video Input Test
This screen will allow the testing of video inputs that are connected to the TSD. This includes TV/DVD Rear Seat
Entertainment (RSE) and television.
RGB Colour Test
This function allows the technician to test the colors generated by the TSD. A second screen displays six solid colors,
selecting the color will fill the screen with the chosen color and pressing the TSD again will revert back to the color test
screen.
Self Test
The self test function displays any fault codes that are present for the TSD. The screen also displays the current state of
the ignition switch and the battery voltage.
Two additional buttons in the screen allow the technician to clear the fault codes and to test the TSD.
Configurations
The configurations screen displays information about the TSD and the navigation computer. Switching between the two
components is achieved via the soft key at the top LH corner of the screen.
The information contained in the screens is as follow:
Vehicle type
Component serial number
Component part number
Component part level
CPU/bootloader lever
Main CPU application version
Sub CPU software version
Private CAN database version.
Vehicle Configurations
