2429903 - E3510 RADIO - Functional description
Functional description
The radio P20 is supplied directly (4 of connector A) from the battery via the line of fuse F39 of the unit under the dashboard B2. Pins 1 and 3 of connector A receive the CAN line with which the radio P20 is connected to the Body Computer M1 and the other nodes of the system. Pin 8 of connector A is earthed. The aerial P25 is connected to the radio also via the specific coaxial cable and is supplied by pin 5 of connector A of P20. Pin 6 of connector A of P20 receives the supply for the lighting (with the side lights on) of the actual radio display, pin 40 of connector E of M1. Radio P20 is not connected to the radio controls on the steering wheel: the connection is via the clock spring D47 , which is a node of the CAN network See E1050 CAN CONNECTION LINES .Connector B of P20 sends out cables carrying signals to the speakers:
- pins 5 and 6 to left front loudspeakers P35 and P45 ,
- pins 3 and 4 to right front loudspeakers P35 and P46 ,
- pins 7 and 8 to the left rear loudspeaker P30 ,
- pins 1 and 2 to the right rear loudspeaker P31 ,