Hi-fi amplifier: Microcontroller

The microcontroller contains the central control unit. The microcontroller is responsible for the diagnostic functions and control of the remaining components. The microcontroller is connected to the headunit via the CAN bus. The hi-fi amplifier is switched on and off via the RAD_ON-Leitung.

Note for Service department: 

The hi-fi amplifier can be coded and programmed. After the hi-fi amplifier is replaced, the new amplifier must be programmed and coded. From September 2010 a bus connection will no longer be installed for the hi-fi amplifier. Also replacement parts for the hi-fi amplifier that were bus-compatible until then will no longer be bus-compatible. The voltage supply can only be checked manually.