Component description for sound system amplifier control unit - GF82.62-P-5010CE
MODEL 204.0 /2 with CODE (810) Sound system as of model year 2009 /YoM 08
MODEL 204.3 /9 with CODE (810) Sound system
Shown on model 204.0
Location
The sound system amplifier control unit is located on a bracket in the trunk on the left sidewall behind the paneling.
Task
- Receive signals
- Decoding signals
- Supporting and amplifying signals
- Transmit signals
Receive signals
- Media Oriented System Transport (MOST)
- Direct lines
MOST
The sound system amplifier control unit is a MOST subscriber and receives audio signals from the following components:
- Audio unit
- Digital Audio Broadcasting control unit (N87/3) (with code (537) Digital radio)
- Satellite digital audio radio control unit (SDAR) (N87/5) (with code (536) SIRIUS satellite radio and code (523) Radio MB Audio 20 or code (510) Audio 20 including CD changer, with code (536) SIRIUS satellite radio and code (528) COMAND incl. DVD changer or code (512) COMAND APS incl. DVD changer, up to 31.5.2009 and as of 1.6.2010)
- SDAR control unit/ high definition tuner (N87/8) (with code (536) SIRIUS satellite radio and code (528) COMAND incl. DVD changer or code (512) COMAND APS incl. DVD changer, as of 1.6.2009 up to 31.5.2010)
- Media interface control unit (N125/1) (with code (518) Media interface)
Direct lines
- Telematic Alarm Identification on Demand (emergency call system) (TELE AID) MUTE (with code (359) TELE AID emergency call system)
- Visual and electrical wake-up
Decoding signals
- Decoding of Digital Transmission Content Protection (DTCP) copy-protected audio signals based on the latest digital signal processing (DSP) technology
DSP means that for the audio range, audio tracks are processed using mathematical algorithms with the objective of improving the acoustic sound characteristics.
Supporting and amplifying signals
- Supporting surround sound (Logic 7)
- Supporting 2 stereo entertainment channels and 3 announcement channels (e.g. for voice output of navigation instructions, etc.)
- Amplification of decoded audio signals
Transmit signals
Direct lines
- Line Out (+ and -) for rear bass speaker amplifier (N40/9) (model 204.9)
- Remote for rear bass speaker amplifier (model 204.9)
- - Output of signal tones, digital multiple channel output and output of decoded, volume-adapted and amplified audio signals to the following speakers:
- Left front door speaker (H4/1)
- Right front door speaker (H4/2)
- Left rear door speaker (H4/3)
- Right rear door speaker (H4/4)
- Center instrument panel speaker (H4/27)
- Bass speaker (H4/29), model 204.0/2
- Left rear surround speaker (H4/54)
- Right rear surround speaker (H4/57)
Function
The sound system amplifier control unit is activated via the "audio equipment". The "Audio unit" provides all menus for user guidance. Moreover, the following subfunctions are available:
D Diagnosis
D Software download
Diagnosis
The diagnosis of the sound system amplifier control unit is performed using the Keyword 2000 protocol. All other control units in MOST are also diagnosed via this interface at the same time! The sound system amplifier control unit can be configured via "Common Vehicle Information".
Software download
The update is carried out via the "Audio unit" drive using a CD or DVD.
| Technical data Designation |
Unit | Values | Tolerance range | Remarks |
|---|---|---|---|---|
| Sound system amplifier control unit | ||||
| Power supply | VV | 14 | Operating voltage (UB ) | |
| Voltage limits | VV | 4, 8 | Minimum (UBmin ) | |
| VV | 16 | Maximum (UBmax ) | ||
| Power consumption | mA | 900 | Ready (IB ) | |
| A | 10 | Action, typical (IAction ) | ||
| A | 22 | Maximum (IAction ) | ||
| mA | 300 | Run-on time (when hot) (IAction ) | ||
| A | 4.5 | Speaker (effective) (IAction ) | ||
| A | 0.1 | Wake-up (effective) (IAction ) | ||
| According to request | Quiescent current | |||
| Reverse polarity protection | The sound system amplifier control unit is resistant to polarity reversal for a maximum time period of 2 min and up to a maximum voltage of 16 V without damage. | |||
| Additional specific parameters | VV | 4.5 | ± 0.2 | Start pulse (UON
) Short-circuit resistance All inputs and output on the sound system amplifier control unit are resistant to short circuit to UBat and ground. |
| Special features | Speaker The load impedances for the connected speaker should not exceed 2 Ω. |
|||
| Flash capability/coding capability | n/ A. |
| Sound amplifier control unit wiring diagram | PE82.62-P-2101-97FAA |