TV-mode, function - GF82.85-P-2011CEJ

MODEL 204.0 /2 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (498) Japan version as of model year 2009 /YoM 08 

MODEL 204.3 /9 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (498) Japan version 

Function requirements for TV mode 

• Circuit 30g ON
• COMAND controller unit (A40/3) activated via "ON" button

TV mode, general 

The TV mode enables the vehicle to pick up television channels on the Japanese National Television System Committee frequency range and to view them on the Audio/COMAND display (A40/8). As of 1.6.2009, reception is digital via Integrated Services Digital Broadcasting - Terrestrial.

The interface is generated by the COMAND controller unit and shown on the Audio/COMAND display.

The TV picture is switched off for safety reasons as of v ≥ 5 km/h. When the vehicle is moving, only acoustic playback remains active and a warning message is shown on the Audio/ COMAND display.

The TV functions can be selected, activated and set with the following components:

• Audio/COMAND control panel (A40/9)
• Handsfree system microphone (A67b1)
• Left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111)

TV mode includes the following function sequences:

• Receipt of TV signals 
• Output of video signals 
• Audio signal output 

Receipt of TV signals 

The antenna signals for TV reception are received by the following antenna amplifiers:

• Via TV1 antenna in the rear window:
  • TV 1 antenna amplifier and DAB Band III (A94/1)
• Via antenna TV2 in rear window (model 204.0/3) or windshield (model 204.2/9):
  • TV 2 antenna amplifier (A94/2) (model 204.2)
  • TV 2 and KEYLESS-GO antenna amplifier (A94/2) (model 204.0/3/9)
• Via TV3 antenna in the windshield:
  • TV 3 antenna amplifier (A94/3)

The antenna amplifiers forward the signals to the TV tuner control unit (N143) (up to 31.5.2009) or to the TV digital tuner (A90/3) (as of 1.6.2009). Upon receiving a television channel, the TV tuner control unit (up to 31.5.2009) or the TV digital tuner (as of 1.6.2009) generates audio and video signals.

Output of video signals 

The video signals are transmitted via a Y-brightness (luminance)/ C-color information (chrominance) (Y/C) line to the COMAND controller unit and from there via a low voltage differential signal (LVDS) line to the Audio/COMAND display.

Output of audio signals 

The TV tuner control unit (up to 31.5.2009) transmits the audio signals via a direct line to the COMAND control unit, which then actuates the speaker system.

The TV digital tuner (as of 1.6.2009) transmits the audio signals via the Media Oriented System Transport (MOST) to the COMAND control unit, which then actuates the speaker system.

Additional functions 

The TV digital tuner (as of 1.6.2009) supports the following additional functions:

• Electronic Program Guide

  Enables reception and display of information about the broadcast (e.g. title, time, duration of broadcast, encryption, program category, age restriction).

• Broadcast Markup Language (BML)

  Enables the reception and structured display of information that is sent by the available stations (e.g. on the weather, news, traffic information).

  Reception of regional information is also possible.

• Two languages are supported (e.g. Japanese and English) when corresponding transmitters are available.

	Electrical function diagram for TV mode, function	Model 204.0/2 up to model year 2012/model refinement package 11 Model 204.9	PE82.85-P-2065-97FAA
		Model 204.0/2 as of model year 2012/model refinement package 11 Model 204.3	PE82.85-P-2065-97FAB
	Overview of system components, telematics		GF82.85-P-9999CE