GF82.90-P-2002LEA Rear Entertainment Switch On/Off Behavior and System Settings, Function

GF82.90-P-2002LEA Rear entertainment switch on/off behavior and system settings, function
- with CODE (864) Rear entertainment system

Function requirements, general
^ Telematics CAN (CAN A) active
^ Rear entertainment system is operating properly

Rear entertainment ON/OFF behavior and system settings, general
The rear entertainment system is operated using the system's remote control. The "System" base function can be used to select the following items and to make settings:
- "Settings"
- "Display off"

With overvoltage or undervoltage, the DVD player (A40/4) switches off the rear entertainment system automatically.

The rear entertainment ON/OFF behavior and system settings function consists of the following subfunctions:
^ ON/OFF via remote control, function sequence
^ System settings, function sequence
^ Automatic switch off function sequence

ON/OFF via remote control, function sequence
The rear entertainment system is switched on using the ON/OFF button on the remote control. The left rear display (A40/5) or the right rear display (A40/6) must be selected beforehand using the control wheel on the remote control.
The control signals from the remote control are transmitted to the appropriate rear display via infrared (IR) interfaces.
The rear display then sends an ON signal via the telematics CAN to the DVD player, which is then activated.
At the same time, the rear display generates for approx. t = 6 s the audio and video signals for the corporate identity display on the screen.

The rear entertainment system is also switched off using the ON/ OFF button on the remote control.
The control signal from the remote control is transmitted to the appropriate rear display via IR interfaces.

The rear display then sends the OFF signal via the telematics CAN to the DVD player, which then switches off. The application last run is stored in the rear display and continued the next time the rear display is switched on.

System settings, function sequence
The system settings are used to define screen-related settings such as design and language.
All system settings can be made individually for each rear display without influencing the other rear display. The settings are made using the remote control. The control signals from the remote control are transmitted to the appropriate rear display via IR interfaces.

The following settings can be made:
- "Settings"
- "Language"
- "Day design"
- "Night design"
- "Automatic"
- "Brightness" (background illumination of the rear display)

- "Display off" (The screen of the rear display is switched off; the system is, however, not switched off. Pressing the "OK" button on the remote control switches the screen on again.)

Automatic switch off function sequence
When the transmitter key (A8/1) is removed from the EIS [EZS] control unit (N73) (circuit 15C OFF), the message announcing that the transmitter key has been removed and the query as to whether the application is to be continued appears on the active rear display.

If the "OK" button on the remote control is then pressed, the active application can be continued if called up within approx. t = 30 min (timeout).

The status of circuit 15 is read in via the following path:
- EIS [EZS] control unit
- Interior CAN (CAN B)
- Central gateway control unit (N93)
- Central CAN (CAN F)
- COMAND controller unit (A40/3)
- Telematics CAN - DVD player, rear display