900 S Coupe L4-2290cc 2.3L DOHC (1995)
Radio/Stereo: Description and Operation
Audio System II
A factory-fitted audio system is available for cars supplied to certain markets. It contains the following components:
^
Radio/cassette player 353
^
Loudspeakers 266
^
CD player 355 (option)
^
Motorized aerial 265
Power Supply
^
Radio/cassette player 353 is supplied with +30 circuit current on pin 4 of connector A and with +X circuit current (trigger signal) on pin 7 of
connector A.
^
CD player 355 is supplied with current via radio/cassette player 353.
Grounding
^
Radio/cassette player 353 is grounded on pin 8 of connector A.
^
CD player 355 is grounded via radio/cassette player 353.
Radio/Cassette Player 353
The radio/cassette player has no radio display of its own but uses the SID unit's display for radio indication.
The radio/cassette player features AVC which uses speed information from main instrument display panel 540 to increase or reduce the volume
when speed is increased or reduced.
If a mobile telephone is installed in the car, it can be connected so that the volume of the radio is lowered when the telephone is in use.
The "Mute" signal of the mobile telephone is then connected to terminal 2 (connector A) of the radio/cassette player.
The front and rear loudspeakers are wired in connector B of the radio/cassette player as follows:
L front
Pin 5: +
Pin 6: -
R front
Pin 3: +
Pin 4: -
L rear
Pin 7: +
Pin 8: -
R rear
Pin 1: +
Pin 2: -
CD Player 355
The CD player is an optional accessory and includes a changer holding up to 13 CDs. The CD player is operated from the radio/cassette player
where all the controls are located. The CD player uses the SID unit's display to show the CD functions.
Motorized Aerial
In the luggage compartment on the left-hand side is a motorized aerial. It is supplied with current via fuse 4 and grounded to the aerial bracket.
When the radio/cassette player is turned ON, it sends a 12 Volts supply to pin 5 of connector A and then to the aerial's built-in relay, causing it to
operate. The aerial motor raises the aerial.
When the radio/cassette is turned , 12 Volts is no longer supplied to pin 5. The aerial's relay contacts then change and current is supplied to the
aerial motor which retracts the aerial.