TV-mode, function

P82.60-9047-79

Function requirements

 Circuit 30g ON

 Transport mode not active

TV mode, general

The TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) or the digital TV tuner (with CODE 865 (TV tuner)) enables digital or analog/digital television channels to be received in the vehicle and to be shown in the Audio/COMAND display.

 The TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) is only installed on model 166.0 up to 04.07.2012.

Digital or analog TV signals are received via the given antenna structure. It must be noted, however, that the TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) or the digital TV tuner (with CODE 865 (TV tuner)) separates the video and audio signals.

The TV mode is therefore comprised as follows:

 Operation function sequence

 Function sequence for TV mode with remote control and headphones (with CODE 867 (SPLITVIEW))

 Function sequence for TV signal reception

 Function sequence for video signal

 Function sequence for audio signal

 Additional information (with CODE 863 (Digital/analog TV tuner), up to 04.07.2012)

 Additional information (with CODE 865 (TV tuner) except CODE 498 (Japan version), as of 05.07.2012)

 Additional information (with CODE 865 (TV tuner) and CODE 498 (Japan version))

 The TV picture is switched off when the vehicle starts to move. When the vehicle is moving, only acoustic playback remains active and - for safety reasons - a warning is shown on the Audio/COMAND display.

Operation function sequence

The COMAND controller unit generates the menu displays and transmits them to the Audio/COMAND display via an LVDS line.

The TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) or the digital TV tuner (with CODE 865 (TV tuner)) receives the control signals from the Audio/COMAND control panel via the following route:

 Telematics CAN

 COMAND control unit

 MOST

The digital TV tuner (with CODE 865 (TV tuner) or CODE 863 (Digital/analog TV tuner) receives the control signals from the left and right multifunction steering wheel button groups via the following route:

 Steering wheel electronics

 Steering LIN

 Steering column module control unit

 Chassis CAN 1

 Electronic ignition switch control unit

 Chassis CAN 2

 Instrument cluster

 Interior CAN

 COMAND control unit

 MOST

The digital TV tuner (with CODE 865 (TV tuner)) receives the control signals from the remote control (with CODE 816 (Entertainment remote control or CODE 867 (SPLITVIEW))) via the integrated infrared interface of the COMAND controller unit. The COMAND controller unit forwards the signals to the digital TV tuner via MOST.

Function sequence for TV mode with remote control and headphones (with CODE 867 (SPLITVIEW))

Equipment with CODE 867 (SPLITVIEW) enables the driver and the front passenger to use the entertainment and communication systems integrated into the vehicle, including the display on the Audio/COMAND display at the same time and independent of each other. The TV function can be activated and operated using the remote control. The COMAND controller unit receives the signals from the remote control via the integrated infrared interface. In order to enable undisturbed concentration on the traffic situation for the driver, the front passenger receives the audio signals via headphones. The COMAND controller unit sends the audio signals over an integrated Kleer® radio interface to the radio frequency headphones. As an option, external cabled headphones can also be used. The cabled headphones receive the audio signals from the COMAND controller unit via the headphones (cabled) electrical connector.

Function sequence for TV signal reception

The antenna signals for TV reception are received via the antenna structure in the rear window or windshield and forwarded via the following antenna amplifiers and direct lines to the TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) or the digital TV tuner (with CODE 865 (TV tuner)):

 FM 2, DAB, and TV 1 antenna amplifier, with CODE 537 (Digital radio) also via the TV 1 antenna amplifier

 TV 2 antenna amplifier

 TV 3 antenna amplifier

Function sequence for video signal

After the TV signals in the TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) or digital TV tuner (with CODE 865 (TV tuner)) have been processed, the video signals are issued as follows:

 Direct Y-brightness (luminance)/C-color data (chrominance) (Y/C) line

 COMAND control unit

 Low voltage differential signal (LVDS) line

 Audio/COMAND display

Function sequence for audio signal

After the TV signals have been processed in the TV tuner (analog/digital) (with CODE 863 (Digital/analog TV tuner)) or digital TV tuner (with CODE 865 (TV tuner)), the audio signals are forwarded via the Media Oriented System Transport (MOST) to the COMAND controller unit and on vehicles with CODE 810 (Sound system) or CODE 811 (Advanced sound system) via MOST to the sound system amplifier control unit where they are then amplified.

Additional information (with CODE 863 (Digital/analog TV tuner), up to 04.07.2012)

The supplemental information is subdivided into the following categories:

 TV reception

 Additional functions

TV reception

TV reception is subdivided into two subcategories:

 Analog TV reception

 Digital TV reception

Analog TV reception

The TV tuner (analog/digital) receives and processes analog terrestrial television programs broadcast in all standards. The audio quality is limited to "MONO".

The TV system operates with a total of three reception modules for video and audio signals. The Phase Locked Loop (PLL) tuners used cover a reception range of f = 30 to 866 MHz. The TV tuner (analog/digital) supports reception of the "PAL/SECAM" and "NTSC" TV standards here.

The TV tuner (analog/digital) is equipped with four antenna inputs (of which three are assigned), in which the TV signals are fed in by each of the antenna amplifiers. The antennas are not assigned to any particular audio tuner, but rather can be used by each audio tuner in an identical manner.

Digital TV reception

In addition to analog television stations, it is also possible to receive terrestrial television stations broadcasting digital signals with the antenna structures already present. The Digital Video Broadcasting Terrestrial (DVB-T) standard is supported. In contrast to analog TV, the audio can be received in stereo here.

The switchover from analog to digital TV reception is accomplished by the TV tuner (analog/digital) automatically, depending on the current reception status. It is not possible for users to switch over themselves.

However, the user can prevent switchover between alternative channels as well as between analog and digital reception with the "Fix channel" control function. If stations with matching stations names are received (e.g. ARD analog and digital), only one entry is made in the list of stations.

 DVB-T can be used with a conventional antenna to receive more channels and in better quality.

Additional functions

The TV tuner (analog/digital) is equipped with 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. The TV tuner (analog/digital) is therefore equipped with its own videotext decoder. Only videotext broadcast with Latin ASCII characters are supported, i.e. Greek or Cyrillic characters are not supported.

Additional information (with CODE 865 (TV tuner) except CODE 498 (Japan version), as of 05.07.2012)

The supplemental information is subdivided into the following categories:

 TV reception

 Additional functions

TV reception

As the transmission frequencies for analog TV will be used differently in future, only digital TV will be received in the range from 470 to 710 MHz according to the Digital Video Broadcasting Terrestrial (DVB-T) standard. 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 will be supported by the digital TV tuner.

The digital TV tuner currently provides the following features:

 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 TV digital tuner is equipped with a separate video text decoder. Only videotext broadcast with Latin ASCII characters are supported, i.e. Greek or Cyrillic characters are not supported.

Additional information (with CODE 865 (TV tuner) and CODE 498 (Japan version))

The supplemental information is subdivided into the following categories:

 TV reception

 Additional functions

TV reception

Reception of encoded programs is possible in vehicles up to 04.07.2012 with a Smart Card and as of 05.07.2012 with a B-CAS SIM card. With digital TV reception, the "one-segment" substandard (TV standard for mobile telephony) is also supported in vehicles as of 05.07.2012 as well as the "full-segment" substandard.

Additional functions

The digital TV tuner provides the following features:

 Digital image storage

 Last settings

 "BML" (Broadcast Markup Language) function:

The digital TV tuner supports video text 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 times and the duration of programs and detailed information about the TV programs for each TV station.

 Bilingual function:

Two languages are supported depending on station availability, e.g. Japanese on the main soundtrack and English on the sub-soundtrack.