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Home >> Mazda >> 2025 >> CX-5 S Select >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Connectivity Master Unit - Introduction) >> Entertainment System >> Operation >> Audio function >> CD/DVD playback
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CD/DVD playback

WARNING: This page is about a different car, the 2024 Mazda CX-90. However, it is still accessible from the selected car via links, so may be relevant.
  1. When the connectivity master unit (CMU) receives the operation signal/detects the switch operation, it sends the control signal to the audio amplifier. In addition, the control signal is sent to the CD/DVD player.
  2. When the CD/DVD player receives the control signal, it sends music information such as the album name and artist name of the inserted CD/DVD to the connectivity master unit (CMU), and it sends the audio signal to the audio amplifier.
  3. The connectivity master unit (CMU) converts the received music information signal to a GMSL signal and sends it to the center display. The audio amplifier sends the received audio signal to the speakers.
  4. The center display indicates the music information signal based on the GMSL signal. In addition, the speakers output the audio based on the received audio signal.
G16716865Courtesy of MAZDA
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