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VSW: Video switch

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Depending on the vehicle equipment, the image from the back-up camera is not transferred to the head unit, rather to the video switch.

If the head unit is unable to process video signals, the digital video switch converts the Composite Video Burst Synch signal (CVBS) of the back-up camera into an LVDS signal. Depending on requirements, either the camera image or the image of the head unit is transferred to the Central Information Display.

Fig 1: Video Switch - Circuit Diagram
G09911973Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Central Information Display (CID)
2 Head unit (CHAMP: multimedia platform or M-ASK: Multi-audio system controller)
3 PDC button in the center console switch cluster
4 Integrated automatic heating and air conditioning system (IHKA)
5 Back-up camera (RFK)
6 Video switch (VSW)
CVBS Composite Video Burst Synch signal or RGB signals (depending on the national version)
K CAN Body CAN
Terminal 30 Terminal 30
Terminal 30g Terminal 30 switched
Terminal 30g-f Terminal 30g-f
Terminal 58g Terminal 58g, locating light
LVDS Data wire (Low Voltage Differential Signalling)
MOST Fiber Optics