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Rear entertainment switch on/off behavior and system settings, function - GF82.90-P-2002LEA

MODEL 221 with CODE (864) Rear entertainment system as of model year 2010/YoM 09 model refinement package 

Function requirements, general 

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:

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 

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:

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:

REFER TO SYSTEM WIRING DIAGRAMS Electrical function schematic for rear entertainment switch on/off behavior and system settings   PE82.90-P-2052-97SAB
  COMAND controller unit, component description A40/3
With code (526) COMAND with single DVD drive (without navigation) or with code (527) COMAND APS with single DVD drive (with navigation)		 GF82.85-P-3136LE 
With code (530) COMAND APS USA (with navigation system) GF82.85-P-3136LEU 
  Rear entertainment DVD player component description A40/4 GF82.90-P-4009LE 
  Rear display left/right component description A40/5, A40/6 GF82.90-P-4020LEA 
  Component description for EIS [EZS] control unit N73 GF80.57-P-6003LE
  Central gateway control unit, component description N93 GF54.21-P-4170LE
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