Main Unit
| Main Unit |
The main unit for the telephone system is the audio system main unit. It is connected to the wiring harness and bus via 3 connectors (A, B, C) and an 8-pin DIN connector (for external amplifier).
The task of the main unit in the telephone system is as follows:
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Disconnect normal sound from selected source during a call. This is achieved by sending a mute signal to the main unit, which then disconnects the normal sound from the loudspeakers and the signal to the external amplifier if fitted.
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To receive an audio signal (line input) from the telephone (incoming sound) via the telephone connector and reproduce it via the audio system speakers.
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See Test readings, control module connections .
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