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

MODEL 164.1 with CODE (864) Rear entertainment system as of model year 09/YoM 08 model refinement package 

MODEL 164.1 with CODE (866) Preinstallation for rear entertainment system with CODE (494) USA version as of model year 09/YoM 08 model refinement package 

MODEL 164.8 with CODE (864) Rear entertainment system as of model year 09/YoM 08 

MODEL 164.8 with CODE (866) Preinstallation for rear entertainment system with CODE (494) USA version as of model year 09/YoM 08 

MODEL 251.0 with CODE (864) Rear entertainment system as of model year 09/YoM 08 

MODEL 251.0 with CODE (866) Preinstallation for rear entertainment system with CODE (494) USA version as of model year 09/YoM 08 

MODEL 251.1 with CODE (864) Rear entertainment system as of model year 09/YoM 08 

MODEL 251.1 with CODE (866) Preinstallation for rear entertainment system with CODE (494) USA version as of model year 09/YoM 08 

Function requirements 

General 

The following video or audio sources are available to the rear passenger(s) in the "Disk" menu item:

The video or audio source is automatically detected.

Depending on the video or audio source, the associated screen in the "DISK" menu item is shown to the rear passenger(s) on the left rear display (A40/5) or right rear display (A40/6).

The rear passenger(s) can then view or listen to the video or audio source inserted into the DVD drive of the DVD player on the activated display.

IMPORTANT When the left rear display is switched on, the "DISK" menu item can only be called up on the left rear display.

When the right rear display is switched on, the "DISK" menu item can only be called up on the right rear display.

When the left rear display and right rear display are switched on, the "DISK" menu item can be called up on both displays. It is necessary to select the respective display using the "Roller" control on the remote control when the "DISK" menu item is operated via the remote control.

The "Rear entertainment disk applications" function consists of the following subfunctions:

Operating instruction 

The video or audio source is automatically detected.

When a video DVD is detected, a scaled down version of the video image is displayed in the application field and the "DISK" menu item is displayed on the respective display with the associated menus broken down as follows:

The associated submenus can be called up on the respective display via the following menus:

When an audio CD or audio DVD is detected, a bar graph (bar indicator = number of tracks) with the current track, the artist and the current track position is displayed in the application field and the "DISC" menu item is displayed on the respective display with the menus broken down as follows:

The associated submenus can be called up on the respective display via the following menus:

When an MP3-CD or DVD is detected, a bar graph (bar indicator = number of tracks) with the current track, the artist and the current track position is displayed in the application field and the "DISK" menu item is displayed on the respective display with the menus broken down as follows:

The associated submenus can be called up on the respective display via the following menus:

The "Disk" menu item with menus and submenus is selected, operated and adjusted on the respective display via the following controls on the remote control:

Video DVD playback function sequence 

The DVD drive integrated into the DVD player decodes the digital data of the inserted video DVD and forwards these internally to the DVD player. The DVD player generates the analog audio and picture signals for the user interface of the "DISK" menu item on the screen of the respective display based on the digital data from the video DVD.

The menus and submenus of the "DISC" menu item are displayed for the rear passenger(s) on the screen of the respective display (see operating instructions).

The rear passenger(s) can now perform additional control operations or settings using the above-specified controls on the remote control (see Operating instructions).

The signals from the above-specified controls on the remote control are transferred via the infrared (IR) interface on the remote control to the respective display.

Audio CD or DVD playback function sequence 

The DVD drive integrated into the DVD player decodes the digital data of the inserted audio CD or DVD and forwards these internally to the DVD player. The DVD player generates the analog audio and picture signals for the user interface of the "DISK" menu item on the screen of the respective display based on the digital data from the audio CD or DVD.

The menus and submenus of the "DISC" menu item are displayed for the rear passenger(s) on the screen of the respective display (see operating instructions).

The rear passenger(s) can now perform additional control operations or settings using the above-specified controls on the remote control (see Operating instructions).

The signals from the above-specified controls on the remote control are transferred via the IR interface on the remote control to the respective display.

MP3-CD or DVD playback function sequence 

The DVD drive integrated into the DVD player decodes the digital data of the inserted MP3-CD or DVD and forwards these internally to the DVD player. The DVD player generates the analog audio and picture signals for the user interface of the "DISK" menu item on the screen of the respective display based on the digital data from the MP3-CD or DVD.

The menus and submenus of the "DISC" menu item are displayed for the rear passenger(s) on the screen of the respective display (see operating instructions).

The rear passenger(s) can now perform additional control operations or settings using the above-specified controls on the remote control (see Operating instructions).

The signals from the above-specified controls on the remote control are transferred via the IR interface on the remote control to the respective display.

Transmission of audio and picture signals function sequence 

Upon reception of the analog picture signals from the DVD player via the Y/C line, the respective display generates the digital picture signals for the associated screen on the display.

The generated digital picture signals are output on the screen of the respective display.

Upon reception of the analog audio signals from the DVD player via the stereo line, the respective display generates the digital audio signals.

These digital audio signals are transferred via the IR interface of the respective display and the IR interface of the connected headphones to these headphones (cordless).

Volume can only be adjusted via the volume control integrated in the respective headphones.

IMPORTANT When headphones (cable-connected) are connected via the headphone jacks integrated in the respective displays, the analog audio signals are transferred to the headphones via the headphone cable by the respective display. The volume is adjusted via the "Volume +/-" control on the remote control. Additionally, the preset volume can be regulated via the volume control of the particular headphones. The signals from the "Volume +/-" control on the remote control are transferred via the IR interface on the remote control to the respective display.

On vehicles with code (528) COMAND with DVD changer or with code (512) COMAND APS with DVD changer, the analog audio signals are also transferred to the COMAND operating, display and controller unit (A40/3) by the DVD player via a stereo line.

On vehicles with code (810) Sound system, the activated COMAND operating, display and controller unit transfers the audio signals via the Media Oriented System Transport (MOST) to the sound system amplifier (N40/3) depending on the volume set on the COMAND operating, display and controller unit.

From there, the audio signals are output at the following speakers via direct lines:

IMPORTANT The audio signal for the subwoofer speaker travels from the COMAND operating, display and controller unit to the sound system amplifier via MOST and from there, over direct lines, to the subwoofer amplifier (N40/9) and then to the subwoofer speaker.

IMPORTANT On vehicles except code (810) Sound system, the audio signals are output directly by the COMAND operating, display and controller unit at the following speakers:

The volume is adjusted at the COMAND operating, display and controller unit via the following controls:

The control signals from the turn/push control on the COMAND operating, display and controller unit are processed internally.

The control signals from the + and - button for setting specific functions and volume control on the MFL are transferred to the COMAND operating, display and controller unit via the following path:

REFER TO SYSTEM WIRING DIAGRAMS Electrical function schematic for rear entertainment disk applications Model 164 PE82.90-P-2051-97MAA
Model 251 PE82.90-P-2051-97RAA
  Instrument cluster, component description A1 GF54.30-P-6000GM
  COMAND operating, display and controller unit, component description A40/3
With code (528) COMAND including DVD changer
without navigation
With code (512) COMAND APS with DVD changer		 GF82.85-P-3134GQ 
  Rear entertainment DVD player component description A40/4 GF82.90-P-4009GQ 
  Rear display left/right component description A40/5, A40/6 GF82.90-P-4020GQ 
  Sound system amplifier, component description N40/3
with CODE (810) Sound system		 GF82.62-P-6003GQS
  Component description for the steering column module control unit N80 GF54.21-P-6051GM
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