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Home >> BMW >> 2004 >> 645Ci 2D Convertible, Standard >> Repair and Diagnosis >> Electrical >> Gauges >> Communication Systems - Si Techniques - E60, E61, E63, E64, E87, E90 >> Multi-audio system controller (M-ASK) E60, E61, E63, E64, E87, E90 >> Introduction >> Brief Description Of Components >> E60, E61, E63, E64, E87,E90 M-ASK Motherboard And Processor Board

E60, E61, E63, E64, E87,E90 M-ASK Motherboard And Processor Board

Installation location 

The M-ASK motherboard is fitted under the drive for CD, CD-ROM or DVD.

Construction 

The processor board is connected on-end with the M-ASK motherboard. The processor board is fitted with processors and memory chips on both sides. For protection against irradiation and dissipation, the processor board is surrounded with a heat protection shield.

The illustration shows the M-ASK in the E60 as an example.

Fig 1: Identifying E60, E61, E63, E64, E87,E90 M-ASK Motherboard And Processor Board Components
G00432275Courtesy of BMW OF NORTH AMERICA, INC.
E60, E61, E63, E64, E87,E90 M-ASK MOTHERBOARD AND PROCESSOR BOARD COMPONENTS

Key Explanation Key Explanation
1 Processor for multi-audio system controller 2 Decoder for MP3 files
3 Central computing unit 4 Data memory for M-ASK navigation system
5 Flash memory 6 Timer function for display control
7 Processor for M-ASK user interface 8 Working memory for M-ASK navigation system
9 Processor for M-ASK Gateway