GF82.85-P-3133TX Operating and Display Unit With Control Unit, Component Description

GF82.85-P-3133TX Operating And Display Unit With Control Unit, Component Description
- with CODE (527) COMAND APS with single DVD drive (with navigation system)

Component Identification:

Location
The COMAND operating, display and controller unit is installed in the center console.

Task
The COMAND, operating, display and controller unit controls the following systems centrally:
^ Audio system (radio, audio CD (MP3-compatible))
^ Navigation system
^ Telephone, with code (388) Telephone "Handy", UPCI system
^ Sound system, with code (810) Sound system
^ Voice control system (VCS [SBS]), with code (813) Voice control system (VCS [SBS])
^ CD changer, with code (819) 6-disk CD changer
^ TV tuner, with code (860) TV tuner (up to 31.5.05)
^ TV tuner, with code (863) Digital/analog TV tuner (from 1.6.05)

Design
The following are integrated in the COMAND operating, display and controller unit:
^ Graphic-capable liquid crystal color display (LCD)
^ Central computer
^ Operating unit for controlling the audio, navigation and telematics functions
^ Digital versatile disk (DVD) drive

Function
The control buttons and switches on the function keypad on the COMAND operating, display and controller unit are read in by the microcontroller via I/O ports and transferred to the central computer. Depending on the system function, button actuations are processed further in the central computer or sent to the other system components via the Media Oriented System Transport (MOST) and the Controller Area Network bus Class B (interior) (CAN-B) in the form of a data telegram.