GF82.62-P-6003RIS Sound System Amplifier, Component Description

GF82.62-P-6003RIS Sound System Amplifier, Component Description
- with CODE (810) Sound system

Component Identification:

Location
The sound system amplifier is located beneath the left luggage box cover.

Task
^ Receiving signals
^ Decoding signals
^ Support and amplification of signals
^ Transmitting signals

Receiving signals
^ Direct lines
^ Media Oriented System Transport (MOST)

Discrete lines
- Power supply via circuit 31 and circuit 30g via one direct line each
- Electronic wake-up for MOST via discrete line
- Audio mute by telephone mute from external mute signal (e.g. telephone mute or emergency call system mute (with code (359) TELE AID emergency call system)) via discrete line

MOST
The sound system amplifier is a subscriber of the MOST and receives the Digital Transmission Content Protection (DTCP) copy- protected audio signals from the following components, for example:
- COMAND operating, display and controller unit (A40/3), with code (528) COMAND with DVD changer, with code (527) COMAND APS with single DVD drive (with navigation) or with code (512) COMAND APS with DVD changer
- Digital Audio Broadcasting control unit (N87/3), with code (537) Digital radio and with code (833) Great Britain version)
- SDAR control unit (N87/5), with code (536) SIRIUS satellite radio
- Media interface control unit (N125/1), with code (518) Media interface
- TV combination tuner (analog/digital) (A90/1), with code (863) TV tuner digital/analog
- TV digital tuner (A90/3), with code (865) TV tuner

Decoding signals
- Decoding DTCP copy-protected audio signals on basis of newest 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.

Support and amplification of signals
- Support of Dolby Digital Surround 5.1
- Support of 2 stereo entertainment channels and 3 announcement channels (e.g. for voice output of navigation instructions, etc.)
- Amplification of decoded audio signals

Transmitting signals
Discrete lines
- Output of signals (BEEPs), digital multiple channel output and output of decoded, volume-adapted and amplified audio signals to the following speakers:
- Left door speaker group (H4/1)
- Right door speaker group (H4/2)
- Left rear speaker (H4/7)
- Right rear speaker (H4/8)
- Center cockpit speaker (centerfill) (H4/27)

- Line Out for subwoofer amplifier (N40/9)
- Remote for subwoofer amplifier

Function
The sound system amplifier is actuated via the COMAND operating, display and controller unit. The COMAND operating, display and controller unit also provides all menus for user guidance.

Moreover, the following subfunctions are available:
^ Diagnosis
^ Software download

Diagnosis
Diagnosis on the sound system amplifier is accomplished 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 can be configured with the Common Vehicle Information (CVI).

Software download
The updating takes place using the drive of the COMAND operating, display and controller unit, from a CD or DVD.