TV-Mode, Function - GF82.85-P-2011GWA
Model 463
as of model year 2017 up to model year 2019
with code EM8 (TV tuner)
Function requirement TV mode, general
- Circuit 30g ON
- Transport mode not active
- No smartphone connected to the multimedia connection unit (A90/5) via Android Auto or CarPlay
TV mode, general
The tuner unit enables digital television stations to be received in the vehicle. The tuner unit separates the video and the audio signals from each other and forwards them separately. The TV mode is therefore comprised as follows:
- Operation
- TV signal reception
- Video signal
- Audio signal
- Additional information (except code ZJ1 (Version for Japan))
- Additional information (with code ZJ1 (Version for Japan))
The COMAND controller unit switches the TV picture 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. The COMAND controller unit receives the speed signal via interior CAN from the instrument cluster.
Operation
The COMAND controller unit generates the displays for the menu and sends them over a low voltage differential signaling line to the audio/COMAND display.
The Audio/COMAND control panel sends the control signals via the following route:
Telematics CAN →
COMAND controller unit →
MOST →
Tuner unit
The left multifunction steering wheel button group and the right multifunction steering wheel button group send the control signals via the following route:
Steering LIN →
Steering column tube module control unit →
Chassis CAN 1 →
Electronic ignition lock control unit →
Chassis CAN 2 →
Instrument cluster →
Interior CAN →
COMAND controller unit →
MOST →
Tuner unit
TV signal reception
TV 1 and TV 2 television signals are received over the following route:
Left side window antenna →
TV 1 antenna amplifier and TV 2 antenna amplifier →
Tuner unit
The TV 3 television signal is received over the following route:
Right side window antenna →
TV 3 and DAB antenna amplifier →
TV antenna splitter (with code EF6 (Digital radio (DAB))) →
Tuner unit
Video signal
After the TV signals have been processed in the tuner unit, the video signals are output as follows:
Tuner unit →
LVDS line →
COMAND controller unit →
LVDS line →
Audio/COMAND display
The control signals, e.g. switch-on request, are received by the Audio/COMAND display over the telematics CAN from the COMAND controller unit.
Audio signal
After the TV signals have been processed in the tuner unit, the audio signals are sent over MOST to the COMAND controller unit and in vehicles with code EU9 (Harman Kardon® Logic 7® surround sound system) over MOST to the sound system amplifier control unit where they are amplified and then emitted via the speaker system.
Additional information (except code ZJ1 (Version for Japan))
The supplemental information is subdivided into the following categories:
- TV reception
- Additional functions
TV reception
The tuner unit receives digital television in accordance with the "Digital Video Broadcasting-Terrestrial" (DVB-T) standard in a range of 470 to 710 MHz. Along with the video compression standard Mpeg 2, Mpeg 4 is also supported. Reception of encoded programs is also possible via an integrated conditional access module.
Additional functions
In the frequency ranges 90 to 108 MHz and 170 to 222 MHz, new services will be available 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)
Video text function: Some stations, primarily in central Europe, offer video text in addition to their television program. For this purpose, the tuner unit is equipped with a separate video text decoder. Only video text broadcast with Latin ASCII characters are supported, i.e. Greek or Cyrillic characters are not supported.
Additional information (with code ZJ1 (Version for Japan))
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 SIM card (Subscriber Identification Module). With digital TV reception the "one-segment" substandard (TV standard for mobile telephony) is also supported in addition to the "full-segment" substandard.
The tuner unit is delivered with a "B-CAS card" inserted into the integrated SIM card reader. The SIM card reader is covered with a seal.
Additional functions
The tuner unit has the following functions:
- Digital image storage
- Last settings
- "BML" (Broadcast Markup Language) function: The tuner unit supports video text for all available Japanese TV stations.
Information on the weather, news etc. can be displayed as on a small website. By selecting a region from a list, regionalized information can be displayed
- "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-sound track and English on the sub-sound track
| Electrical function diagram for TV mode, function | PE82.85-P-2065-97ZGB | ||
| Overview of system components, telematics | GF82.85-P-9999GW |