2401155 - E3580 PREPARATION FOR CELLULAR TELEPHONE - Functional description

Functional description

The connection D75 receives the direct supply - pin 9 - from the battery via the line of fuse F39 of the unit under the dashboard B2 . It receives a supply controlled by the ignition (INT) - pin 7 - via the line of fuse F49, of the unit under the dashboard B2 . Pin 8 receives a supply with the side lights on, coming from the Body Computer M1, pin 18 of connector H: the telephone, if fitted is lit up like the other controls See E2530 INSTRUMENT LIGHTING . Pin 10 of connector D75 is earthed, via the radio analogue earth, pin 12 of connector C of P20. Pins 4 and 3 of D75 supply the audio signal (+ and - respectively) to the radio P20 - pins 7 and 8 of connector C, which then controls the speakers See E3510 RADIO . Pin 1 of D75 is also connected to the radio P20, pin 9 of connector C (MUTE function).