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Home >> BMW >> 2011 >> 740Li >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Entertainment And Information Systems - Overview >> System Overview >> System Components >> Fixed Components >> Power Board

Power Board

The power board is located beneath the CIC heat sink and on the left next to the CIC main connector. It contains both the audio output stages for the speakers of the stereo system as well as the power supply unit for the CIC.

The heat sinks and CIC fan cool the system by dissipating the heat from the power supply unit and amplifier.

The unit interfaces with the vehicle's electrical system (power supply, MOST link, etc.) through the main connector.

INDEX REFERENCE CHART

Index Explanation
1 Heat sink
2 Power board
3 Main connector of the CIC
Fig 1: Identifying CIC Main Board, Heat Sink And CIC Main Connector
G06925498Courtesy of BMW OF NORTH AMERICA, INC.