Principles of Operation

AUDIO SYSTEM

Principles of Operation
The audio unit can be powered up when the key is in RUN, ACC, or START. The audio unit provides audio signals to the speakers, thus producing sound. The audio unit directs the audio signals to tine speakers through separate positive and negative circuits for each of the 4 audio channels: LH front, RH front, LH rear, and RH rear. The audio unit provides internal circuit protection for shorts to ground and shorts to battery.

The subwoofer speaker is powered by a separate sub-woofer amplifier (Audiophile). The enable/clip circuit carries out 2 functions: to turn on the amplifier, and to indicate to the audio unit when the subwoofer output distortion signal reaches an excessive level. The audio unit then reduces (clips) the audio output signal to the amplifier.