Display/Printed Circuit Board
The display shows information about the function which is active. It also displays information when selecting functions and preferences for the infotainment system.
The display is connected via a cable direct to the printed circuit board. They are integrated in the same unit.
There are two display versions, standard and graphic. The standard display has three rows of text and a field with fixed symbols. The graphic display consists of a field with 128*64 pixels.
The printed circuit board has inputs for the display, keypads as well as in and outputs for power supply, ground, the CAN and MOST networks. The processor for the infotainment control module is on the printed circuit board. Therefore the printed circuit board contains all the functionality and logic for the infotainment control module. The printed circuit board also stores the software for the infotainment control module. The control module must be reprogrammed when replacing the display and/or printed circuit board.
There are diagnostics for the power for the display. There are diagnostics for the printed circuit board.