Modular Design of CIC Components: Notes

Fig 1: Individual Replaceable Components Of Car Information Computer

Courtesy of BMW OF NORTH AMERICA, INC.

CIC COMPONENTS EXPLANATION CHART

Index	Explanation
1	Replaceable device CIC
2	DVD/CD player including CIC housing cover
3	Front panel
4	Hard disk drive

The components listed above are defined as separate or modular. These components are attached to the main/complete head unit.

Of these components, only the faceplate remains a serviceable and replaceable component. Failure of any other internal component will necessitate the replacement of the entire CIC unit once proper authorization has been obtained through PuMA.

The functions of the individual components are briefly described in the following pages.

The installation and removal instructions for the individual components and the complete CIC control unit are available in TIS (Technical Information System) or the workshop system ISTA.

It is essential to follow ESD (Electrostatic Discharge) guidelines when replacing individual components in order to avoid damage to internal components of the CIC. These requirements also apply when storing or sending back components.

Special packaging (ESD bags, ESD boxes with film or foam material cladding) is available for this purpose and should be used instead of conventional packaging materials.

The following picture illustrates the effects of electrostatic discharge (ESD) on electronic components.

Fig 2: Effects Of ESD (Electrostatic Discharge) On Electronic Components

Courtesy of BMW OF NORTH AMERICA, INC.

ELECTROSTATIC DISCHARGE EXPLANATION CHART

Index	Explanation
1	ESD symbol (protection measures necessary)
2	ESD damage to a conductor (magnified 5000 times)