Rear entertainment AUX applications, function - GF82.90-P-2004LEA
MODEL 221 with CODE (864) Rear entertainment system as of model year 2010/YoM 09 model refinement package
Function requirements, general
- Telematics CAN (CAN A) active
- COMAND controller unit (A40/3) is switched on
- Video or audio devices are connected to the AUX jack of the left rear display (A40/5), right rear display (A40/6), DVD player (A40/4) or to the COMAND controller unit
Rear entertainment AUX applications, general
The AUX jack on the DVD player, on a rear display or on the COMAND controller unit can be used to connect external audio or video equipment (e.g. portable MP3 player or games console) to the rear entertainment system.
The rear entertainment AUX applications are then operated using the remote control. The control signals are transmitted over the infrared (IR) interfaces in accordance with the desired AUX source to the following components:
- SPLITVIEW display (A40/10) (with code (867) SPLITVIEW)
- Left rear display
- Right rear display
The control signals are transmitted via the telematics CAN to the component that is to be operated using the remote control.
If an audio source is connected, the background (headphones picture) remains and the source is played back (no automatic recognition!). If a video source is connected, this is automatically recognized and the background disappears and the video source is played back. As soon as it has been detected, this is indicated in the "Aux" menu on the active rear display.
The audio and video units are operated at the units themselves. The received data is displayed graphically on the active rear display.
From the received data, the rear display or the DVD player generates analog or digital audio signals and digital picture signals for display on the rear display.
If the external audio or video unit is not connected to a rear display, the analog picture signals are passed on to the rear display via the following path.
For COMAND controller unit AUX source:
- COMAND control unit
- Y brightness (luminance)/C color information (chrominance) (Y/C) line
- DVD player
- Y/C line
- Rear display
For DVD player AUX source:
- DVD player
- Y/C line
- Rear display
The analog audio signals are passed on to the rear display via the following path.
For COMAND controller unit AUX source:
- COMAND control unit
- Stereo line
- DVD player
- Stereo line
- Rear display
For DVD player AUX source:
- DVD player
- Stereo line
- Rear display
The analog audio signals of the AUX source are converted in the rear display. The audio signals are transmitted via the IR interface (up to 31.8.10) or radio interface (as of 1.9.10) of the rear display to the IR interface or radio interface of the headphones (cordless).
The volume can be adjusted via the volume control integrated in the headphones. 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 of the AUX application 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:
- Left rear door speaker group (H4/3)
- Right rear door speaker group (H4/4)
- Bass module speaker (H4/17)
- Center cockpit speaker (centerfill) (H4/27)
- Left rear surround speaker (H4/54)
- Right rear surround speaker (H4/57)
- Left front door Sound tweeter (H4/68)
- Right front door Sound tweeter (H4/69)
- Left front door Sound woofer and midrange speaker group (H4/72)
- Right front door Sound woofer and midrange speaker group (H4/73)
On vehicles with code (811) Advanced sound system, the audio output takes place over the following speakers:
- Speaker Left front door (H4/5)
- Right front door speaker (H4/6)
- Bass module speaker
- Center cockpit speaker (centerfill)
- Left front door tweeter (H4/33)
- Right front door tweeter (H4/34)
- Left rear door tweeter (H4/35)
- Right rear door tweeter (H4/36)
- Left rear surround speaker
- Right rear surround speaker
- Left front door woofer (H4/64)
- Right front door woofer (H4/65)
- Left rear door woofer (H4/66)
- Right rear door woofer (H4/67)
The woofers and bass box speaker are actuated by the sound amplifier (A2/13), which is controlled by the digital sound processor.
| Electrical function schematic for rear entertainment AUX applications | PE82.90-P-2050-97SAB | ||
| 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 |