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Rear entertainment disk applications, function - GF82.90-P-2003LEA

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

Function requirements, general 

Rear entertainment disc applications, general 

The following video or audio sources are available to the rear passengers in the "Disc" basic function:

After inserting a CD/DVD into the DVD player's drive, the video or audio source is automatically recognized and started. Depending on the video or audio source, the corresponding screen in the "Disc" basic function is shown on the left rear display (A40/5) or the right rear display (A40/6). The rear passengers can now view or hear the video or audio source inserted into the DVD drive of the DVD player on the rear display. The menus and their submenus are displayed on the screen of the rear display. Furthermore, the rear entertainment system also permits access to video or audio sources of the COMAND controller unit, and alternatively it is also possible for the driver and the front passenger to select video or audio sources of the DVD player. The disk applications are operated using the remote control.

The control signals are transmitted via the infrared (IR) interface of the remote control to the respective IR interface of the rear display or the SPLITVIEW display (A40/10) (with code (867) SPLITVIEW). The controls of the COMAND controller unit are also available to the driver.

Rear entertainment disk applications, function sequence 

The DVD drive integrated in the DVD player decodes the digital data of the inserted audio or video source and passes this data on internally to the DVD player. The DVD player generates the analog audio and video signals from the digital data. The audio signals are then transmitted to the appropriate rear display via a stereo line. On receiving the analog picture signals from the DVD player via the Y-brightness (luminance)/C-color information (chrominance) (Y/C) line, the respective rear display generates the digital picture signals for the corresponding screen. The digital picture signals are displayed via the rear display.

IMPORTANT Playback errors may occur when copied audio or video sources are played back.

Due to the large number of available data storage devices, it is impossible to guarantee that the rear entertainment system can play back a burned CD/DVD.

CD/DVD videos conforming to the "PAL" or "NTSC" standard which fulfill the following conditions can be played back as standard:

On vehicles without code (494) USA version, the rear entertainment system is factory-set to "Region code 2". The country-specific coding is performed using the IS tester.

After receiving the analog audio signals via the stereo line from the DVD player or from the COMAND controller unit, the respective rear display generates the analog IR signals or radio signals (as of 1.9.10). These are transmitted via the IR interface of the respective rear display to the display and the IR interface (up to 31.8.10) or radio interface (as of 1.9.10) of the respective connected headphones to these (cordless). Alternatively, it is possible to output the audio signals via the vehicle's speaker system. The audio signals are output at the volume set at the COMAND controller unit. For this, the signals are sent by the COMAND controller unit via Media Oriented System Transport (MOST) to the audio tuner control unit (N93/1) or to the digital sound processor (A2/69) (as of 1.9.10 with code (811) Advanced sound system). The audio signals are transmitted via the DVD player directly to the audio tuner control unit.

On vehicles with code (810) Sound system, the audio signals are output over the following speakers:

On vehicles with code (811) Advanced sound system, the audio signals are output over the following speakers:

IMPORTANT The woofers and bass box speaker are actuated by the sound amplifier (A2/13), which is controlled by the digital sound processor.

REFER TO SYSTEM WIRING DIAGRAMS Electrical function schematic for rear entertainment disk applications   PE82.90-P-2051-97SAB
  Digital sound processor, component description A2/69
As of YoM 10 with code (811) Advanced sound system		 GF82.62-P-5011LE
  Component description for COMAND controller unit 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 
  Component description for rear entertainment DVD player A40/4 GF82.90-P-4009LE 
  Component description for rear display left/right A40/5, A40/6 GF82.90-P-4020LEA 
  COMAND display, component description A40/8
Without code (867) SPLITVIEW		 GF54.30-P-6110LE
  SPLITVIEW display, component description A40/10
With code (867) SPLITVIEW		 GF54.30-P-6120LE
  Audio tuner control unit, component description N93/1 GF82.62-P-3132LES
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