3026185 - E3510 RADIO - Functional description (5 porte, Guida a destra)

Functional description

The radio P20 is supplied directly (7 of connector A) from the battery via the line of fuse F39 of the unit under the dashboard B1 and the maxifuse CPL of B99 . The supply to the side lights on reaches pin 4 of connector A  See E2530  INSTRUMENT LIGHTING . 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 supplied from pin 5 of connector A. The aerial is connected to the radio also via the specific coaxial cable.

Connector B sends out cables carrying signals to the speakers:

• pins 3 and 4 to the left front speakers P35 and P45 ;
• pins 5 and 6 to the right front speakers P36 and P46 ,
• pins 7 and 8 to left rear loudspeakers P30 and P47 ,
• pins 1 and 2 to right rear loudspeakers P31 and P48 ,

Pins 10 and 11 of connector C are connected to the radio controls on the steering wheel: the connection is via the clock spring D47 ; the device which controls the control buttons receives a supply controlled by the ignition (INT) from the line protected by the fuse F51 of the unit under the dashboard B2 , while the reference earth arrives from pin 12 of connector C of P20 .