GF82.60-P-3106FL | TV tuner (analog/digital), component description | 13.3.12 |
MODEL 212 with CODE (863) Digital/analog TV tuner
P82.90-2409-06
Shown on model 212.0
A90/1 TV tuner (analog/digital)
Location
The TV tuner (analog/digital) is located at the right rear in the trunk behind the paneling on a bracket.
Task
Receive signals
Demodulating and decoding signals
Transmit signals
Receive signals
Direct lines
CAN (with code (864) Rear entertainment system)
Media Oriented System Transport (MOST)
Direct lines
- Power supply via terminal 31 and terminal 30g
- Electronic wake-up via a direct line
- TV 1 antenna amplifier (A94/1) via a coaxial cable
- TV 2 antenna amplifier (A94/2) via a coaxial cable
- TV 3 antenna amplifier (A94/3) via a coaxial cable
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CAN (with code (864) Rear entertainment system)
The TV tuner (analog/digital) is a subscriber of the telematics CAN (CAN A) and communicates with the following control units:
- Left rear display (A40/5)
- Right rear display (A40/6)
- DVD player (A40/4)
Media Oriented System Transport (MOST)
The TV tuner (analog/digital) is a subscriber of the MOST, via which it communicates with the COMAND operating, display and controller unit (A40/3).
Demodulating and decoding signals
The received TV signals are evaluated internally and separated into video and audio signals.
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Transmit signals
Direct line
CAN (with code (864) Rear entertainment system)
MOST
Direct line
- Phantom power supply to following antenna amplifiers:
- TV 1 antenna amplifier
- TV 2 antenna amplifier
- TV 3 antenna amplifier
- Transmit video signals to the COMAND controller unit via Y/C lines
- Transmit video signals via Y/C lines to the DVD player (with code (864) Rear entertainment system)
- Transmit audio signals to the DVD player
(with code (864) Rear entertainment system)
CAN (with code (864) Rear entertainment system)
The TV tuner (analog/digital) is a telematics CAN subscriber and it communicates with the following control units:
- Left rear display
- Right rear display
- DVD player
MOST
The TV tuner (analog/digital) is a subscriber of the MOST, via which it communicates with the COMAND controller unit. The audio signals are transmitted to the COMAND controller unit or the sound system amplifier control unit (N40/3) (with code (810) Sound system).
Technical data Designation |
Unit |
Values |
Tolerance range |
Remarks |
TV tuner (analog/digital) | ||||
Power supply | VV | 14 | Battery voltage UB | |
Voltage limits | VV | 9 | Minimum UBmin | |
16 | Maximum UBmax | |||
Power consumption | A | < 1,9 | Rated power consumption IBmax | |
A | < 1,9 | Action IAction | ||
(Standby=Operation) | ||||
mA | 1 | Quiescent current I0 | ||
Reverse polarity protection | Yes | |||
Additional specific parameters | MHz | 47 to 68 | TV band 1 | |
TV reception frequencies (analog and digital) | MHz | 174 to 230 | TV band 3 | |
MHz | 470 to 862 | TV band 4/5 | ||
Minimum voltage | VV | 9 | 0,2 | Minimum UBmin If the voltage drops below the minimum value (UBmin), all data in the volatile memories is lost. |
Special features | The IS tester can access the diagnostic system of the TV tuner (analog/digital) via the electronic ignition lock control unit (N73), the interior CAN (CAN B), the COMAND controller unit (A40/3) and the Media Oriented System Transport (MOST). The following service functions are supported: - Control unit identification - Fault management - Read fault list - Read freeze frame data of a fault - Delete fault codes - Wiring test of TV antenna amplifier and audio/video lines for short circuit and connection - Read current signal strength - TV antenna amplifier switched on or off | |||
- Read mean signal strength value - TV antenna amplifier switched on or off - Antenna use (TV performs long-term observation) - Test picture and test audio - Programming TV parameters, i.e. National settings and audio and video lines used - Read TV parameters - Control module reset - Write and read permanent channel list for special usage areas (workshop list) | ||||
Flash capability/coding capability | Profi-compatible flashable/SCN coding |