E3520 "radiophone" radio

Description

A Blaupunkt radio, with a built-in GSM cellular telephone, called "RADIOPHONE", is available as an optional extra. (r)

The radio is the same size as a regular radio console.

The "RADIOPHONE" may be used as a radio when not using the phone or waiting for a call.

The telephone system (the keyboard on the Radiophone allows the desired number to be dialled) has the following features:

• GSM type equipment;
• SIM card (which also acts as a KEY CARD);
• incoming number identification;
• debit indication.

The complete system consists of:

• two separate aerials (one for the radio and one for the phone): the first is the aerial normally built into the rear window for the standard radio set. The second is a special aerial located at the rear in the middle of the roof.
• phone microphone, located on the interior rear view mirror base
• separate front power and tweeter speakers, located in the doors;
• special "twin cone" right front speaker (used by both the radio and the telephone);
• rear speakers, located in the doors;
• rear speakers on the rear parcel rack
• leads connecting the radio to the speakers;

The radio circuit is supplied both with the ignition key in the ON position and directly from the battery.

The above two lines are protected by a fuse in the junction unit.

In addition to the radio there is also a supply with the side lights on to light up the radio controls.

Full details of the specifications and the operation of the RADIOPHONE are given in the "OWNER'S HANDBOOK".

Description of operation

The radio P20 is supplied directly (pins 4 and 7 of connector A) by the battery via the line for fuse F10 of junction unit B1 and maxifuse J/B1 of B5 up to 2/99 or B99 from 2/99.

It receives a supply when the ignition is switched on (INT) (pin 3 of connector A) via the line for fuse F1 of the junction unit B1.

With the side lights switched on, the supply reaches pin 6 of connector A by means of the line coming from the switch for the steering column switch unit H5, protected by the controls illumination fuse B11 up to 2/99 or fuse F4 of the additional fuse box B98B from 2/99; the radio controls are therefore lit up when the lide lights are switched on.

Pin 8 of connector A, on the other hand, is earthed (C20).

Pin 5 of connector A is connected to the control unit P22, which controls the aerial built into the heated rear windscreen (radio operation). The control unit P22 is then connected to the radio by means of the specific aerial lead.

Connector B sends out cables carrying signals to the speakers:

• pins 5 and 6 to the left front speakers P35 and P45,
• pins 3 and 4 to the right front speakers P36 and P46,
• pins 7 and 8 to the left rear speakers P30 and P40,
• pins 1 and 2 to the right rear speakers P31 and P41.

Connector C, specific to this RADIOPHONE version, is connected from pins 11and 12 - by a special screened cable - to the microphone, located in the interior rear view mirror.

Wiring diagram

Components

Component location