V50 T5 AWD L5-2.5L Turbo VIN 67 B5254T7 (2008)
The microphone is directly connected to the audio module (AUD). The microphone transmits analog signals to the control module.
Telephone calls can be made either hands free or using the handset. During handsfree calls, the microphone and speaker are used which are connected to
the audio module (AUD). The microphone is phantom fed via the audio module (AUD).
For further information, see Design and Function, phone module (PHM).
Function
Function
Playing back sound
All functions in the audio module (AUD) (16/105) are controlled by the signals from other nodes in the MOST network.
To initiate audio playback, a control module transmits a request to the infotainment module (ICM) (16/1.2). The infotainment control module (ICM)
allocates the request to the audio module (AUD) then the control module can transmit data via the MOST network to the audio module (AUD).
The infotainment control module (ICM) processes changes to the volume, balance, bass, treble and equalizer settings. The infotainment control module
(ICM) transmits the changes via the MOST network to the audio module (AUD) which then carries out the changes.
The control modules on the MOST network which use the audio module (AUD) to play back sound are:
-
multimedia module (MMM) (16/108) for voice guiding (navigation)
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integrated audio module (IAM) (16/1)
-
Subwoofer module (SUB) (16/79)
