CD changer: Function

Fig 1: CD Changer Communication Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: CD Changer Connection Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The CD changer is powered separately (+30) from fuse 9 to pin 6 in the CD changer connector.

When the audio system has been activated, the CD changer will read the "wake-up" information from the head unit on pins 5 and 11 on the bus. The CD changer is then activated (switched on).

The sound signal (line outputs) from the CD changer to the head unit is supplied via:

• pins 3 and 8 for the left-hand channel;
• pins 2 and 7 for the right-hand channel.

The CD changer functions are controlled by commands from the head unit via the bus.

See TEST VALUES, CD CHANGER CONNECTIONS