Midline System Radio Cassette

Midline system radio cassette
The midline radio cassette is located in the center of the fascia and contains the radio and tape player, four clips (accessible through holes in the front of the unit) secure the unit. To remove the radio cassette unit the four clips must be released with a special tool. The midline system can be controlled from the fascia mounted radio cassette, or from remote radio control switches on the left hand side of the steering wheel. The audio signal can be from the radio, cassette player or a optional CD-autochanger. A logic control circuit in the radio cassette player controls the operation in the various control modes.

The radio cassette has a display screen, information shown can include current status, station (radio mode) or cassette tape track or (optional) CD-autochanger track/disc status. Power for illumination on the radio cassette is supplied from the passenger compartment fusebox. A main fuse is also located in the connector socket area on the back of the radio cassette.

Security code function
A combination of buttons on the radio cassette are used to input and change security codes. Security codes make the unit unusable if the unit is disconnected from the vehicle without deactivating the security code. The radio cassette has an internal memory chip that stores the information, if the power is removed from the unit the chip will activate the security code feature. For this reason the security code feature must be deactivated before the unit is removed or the vehicles battery is disconnected.

Audio functions
A rotary knob allows changes of levels or selections during the various modes of operation, this includes volume, bass, treble and fader.

Cassette functions
The radio cassette has buttons for the following cassette functions eject, tape, reverse, forward, tape eject/reversal.

Radio functions
The radio cassette has buttons for the selection of AM or FM reception. Selection of the radio station is controlled by the use of the multi-function buttons on the radio cassette player, the radio headphone amplifiers or the remote radio controls on the steering wheel.

Traffic Information and news function
A traffic information button (TA/NEWS) allows traffic or news information to be selected on the FM waveband only, in this mode the audio output will mute when traffic or news messages are received. After the traffic or news message the radio, cassette tape or CD will resume play, the traffic and news information varies with the country of use and radio band selected.

Multi function buttons
Rotary controls are located on the front of the radio cassette for adjustment of bass, treble etc, depending on current mode selected. Operation of presets 1-6 depends on current mode of operation and allows selection of radio band (Radio mode on) or CD-autochanger disc (in the CD mode). Scan (Mode dependent) manual or automatic selection of band or track. RND random play, MODE/MUTE (mode dependent) when pressed the button allows manual operation or alternate mode selections such as manual tuning, compact disk cue/review, tape forward/rewind modes.

Internal memory
An internal memory chip stores the station presets and security code, power is supplied internally to the chip via a permanent power feed, supplied from the passenger compartment fuse box.