TV-mode, function - GF82.85-P-2011RF
Model 205 with code 531 (COMAND APS) with code 865 (TV tuner)
Model 253 with code 531 (COMAND APS) with code 865 (TV tuner)
Shown on model 205.0/1
Shown on model 205.2, 253
Function requirement TV mode, general
- Circuit 30 g ON
- Transport mode not active
TV mode, general
The tuner unit makes it possible to receive digital TV channels in the vehicle and show them on the audio/COMAND display. If the head unit is not switched on, it can be activated via the "ON" button in the left lower control panel (with manual transmission) or in the right lower control panel (with automatic transmission). The signal is forwarded to the head unit by the left lower control panel (with manual transmission) or by the right lower control panel (with automatic transmission) via the lower control panel LIN, the Audio/COMAND control panel and the telematics CAN.
The TV functions can be selected, activated and set with the controls of the left multifunction steering wheel button group and right multifunction steering wheel button group. The control signals of the left multifunction steering wheel button group and the right multifunction steering wheel button group are forwarded as follows:
Steering wheel electronics →
Steering LIN →
Steering column tube module control unit →
Chassis FlexRay →
Electronic ignition lock control unit →
User interface CAN →
Instrument cluster →
User interface CAN →
Head unit
The TV functions can be selected, activated and set with the Audio/COMAND controller of the Audio/COMAND control panel. The "Back" button supports navigation in the menus. The control signal are transmitted to the head unit by the Audio/COMAND control panel via telematics CAN.
The TV functions can be operated with the touchpad (as of 01.06.2015 with code 448 (Touchpad) or with code 498 (Japan version)). The control signals are transmitted to the head unit by the touchpad via telematics CAN.
The TV functions can be activated on the upper control panel control unit. The volume can be changed on the left lower control panel (with manual transmission) or on the right lower control panel (with automatic transmission) using the volume control button. The control signals are forwarded as follows:
LCP LIN →
Audio/COMAND control panel →
Telematics CAN →
Head unit
The tuner unit separates the video and audio signals that are contained in the TV signals. The TV mode is therefore comprised as follows:
- Function sequence for reception of TV signals
- Function sequence for output of video signals
- Function sequence for output of audio signals
- Additional information (with CODE 498 (Japan version))
- Additional information (except CODE 498 (Japan version) and except CODE 494 (USA version))
Function sequence for reception of TV signals
TV 1 signals are received as follows:
Rear window antenna →
TV 1 and DAB band III antenna amplifier (model 205.0/1) or FM 2, DAB and TV 1 antenna amplifier (model 205.2, 253) →
Tuner unit
Model 205, 253
with code 531 (COMAND APS)
with code 537 (Digital radio (DAB))
with code 865 (TV tuner)
The tuner unit receives digital radio (DAB) band III signals via the same input as the TV 1 signals. The tuner unit separates the signals internally with an integrated antenna splitter.
The TV 2 signal (model 205.0/1) and TV 3 signal are received as follows:
Windshield antenna →
TV 2 antenna amplifier (model 205.0/1) or TV 3 antenna amplifier →
Tuner unit
On model 205.2, 253, the TV 2 signal is received as follows:
Windshield antenna →
TV 2 and DAB band III antenna amplifier →
TV and DAB antenna splitter (with code 537 (Digital radio (DAB))) →
Tuner unit
The tuner unit processes the TV signals and separates the video signals from the audio signals.
Function sequence for output of video signals
The video signals are transferred via LVDS lines as follows:
Tuner unit →
Head unit →
Audio/COMAND display
Function sequence for output of audio signals
In vehicles except code 810 (Sound system), the tuner unit transfers the audio signals via the MOST to the head unit. The head unit amplifies the audio signals and outputs them over the speaker system. On vehicles with CODE 810 (Sound system), the tuner unit forwards the audio signals via the MOST to the sound system amplifier control unit, which amplifies the audio signals and outputs them over the speaker system.
Additional information (with CODE 498 (Japan version))
The supplemental information is subdivided into the following categories:
- TV reception
- Additional functions
TV reception
The reception of encoded programs is possible with a B-CAS Subscriber identification module (SIM) card. With digital TV reception the "one-segment" substandard (TV standard for mobile telephony) is also supported in addition to the "full-segment" substandard.
Additional functions
The tuner unit has the following functions:
- Digital image storage
- Last settings
- "BML" (Broadcast Markup Language) function: The tuner unit supports videotext for all available Japanese TV stations. This enables information to be shown similar to a small website on weather, news, etc. By selecting a region in the setting list you can obtain region-specific information.
- "EPG" (Electronic Program Guide) function: The Electronic Program Guide shows information such as start and end of broadcasts and detailed information on the television programs for each TV station.
- Bilingual function: Two languages are supported depending on station availability, e.g. Japanese on the main-sound track and English on the sub-sound track.
Additional information (except CODE 498 (Japan version) and except CODE 494 (USA version))
The supplemental information is subdivided into the following categories:
- TV reception
- Additional functions
TV reception
Only digital television in accordance with the standard Digital Video Broadcasting-Terrestrial (DVB-T) in the range of 470 to 710 MHz is received. In addition to the video compression standard Mpeg 2, Mpeg 4 is also supported. Receiving encoded programs is also possible via an integrated conditional access module.
Additional functions
New services will be offered in the frequency ranges from 90 to 108 MHz and 170 to 222 MHz in future that can be supported by the tuner unit.
The tuner unit currently has the following functions:
- Video text (pages: 100 to 899)
- Station list of channels currently receivable
- Last settings
- National settings
- Info (information on currently selected stations)
Videotext function: Some stations, primarily in central Europe, offer videotext in addition to their television program. For this purpose, the tuner unit is equipped with a separate videotext decoder. Only videotext broadcast with Latin ASCII characters are supported, i.e. Greek or Cyrillic characters are not supported.
| Electrical function diagram for TV mode, function | PE82.85-P-2065-97FBA |
| Overview of system components, telematics | GF82.85-P-9999RF |