Component Description For Midline Sound System Amplifier Control Unit - GF82.62-P-5010FHB
Model 238.361/461
Up To Model Year 2021
Except Code 810 (Premium sound system)
Except Code 811 (High-End sound system)
Shown On Model 238.3
Location
The Midline sound system amplifier control unit is located in the trunk on the right behind the side trim.
Tasks
- Receive signals
- Signal optimization and amplification
- Transmitting signals
Receive signals
The input factors are read in via:
- Direct lines
- Media Oriented System Transport (MOST)
- CAN
Direct lines
The following signals are read in via a direct line:
- Power supply via circuit 30t and circuit 31
- Audio muting (Mute function) from the HERMES control unit (N112/9) (with code 362 (HERMES LTE))
- Electrical wake-up
Media Oriented System Transport (MOST)
The Midline sound system amplifier control unit is a MOST user and receives control and audio signals from the following component parts:
- Head unit (A26/17)
- TV tuner control unit (N143) (with code 865 (TV tuner))
CAN
The Midline sound system amplifier control unit receives control signals (e.g. engine rpm, engine load and vehicle speed) over the drive CAN (CAN C1) from the ME-SFI [ME] control unit (N3/10)
Signal optimization and amplification
The Midline sound system amplifier control unit has the following tasks when it is optimizing and amplifying the signals:
- Optimization of input signals through digital signal processing
- Support of stereo and multichannel entertainment channels and announcement channels (e. g. for voice output in voice control system or navigation prompts)
- Amplifying of the input signals and assignment of the output to the speakers
- Optimization of the engine and exhaust system sound in the vehicle interior through generation of simulated sound components through the speaker system
Transmitting signals
The Midline sound system amplifier control unit sends signal tones and amplified, optimized audio signals to the following speakers over direct lines:
- Left front door midrange speaker (H4/1) and left front door tweeter (H4/33)
- Right front door midrange speaker (H4/2) and right front door tweeter (H4/34)
- Left side paneling midrange speaker (H4/3)
- Right side paneling midrange speaker (H4/4)
- Center instrument panel speaker (H4/27)
- Left front footwell bass speaker (H4/42)
- Right front footwell bass speaker (H4/43)
| Sound amplifier control unit wiring diagram | PE82.62-P-2101-97DCC |