GF82.85-P-3134TXB COMAND Operating, Display and Controller Unit, Component Description

GF82.85-P-3134TXB COMAND Operating, Display And Controller Unit, Component Description
- with CODE (527) COMAND APS with single DVD drive (with navigation)
- with CODE (512) COMAND APS with DVD changer
- except CODE (494) USA version
- except CODE (498) Japan version
- with CODE (528) COMAND with DVD changer

Component Identification:

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

Task
The COMAND operating, display and controller unit has the following tasks:
^ Provide the interface for the different functions
^ Reads in the controls and input signals
^ Evaluating input factors
^ Actuates output media

Reads in the controls and input signals
The input factors are read in via the following connections:
^ Direct lines
^ Controller Area Network (bus/CAN bus)
^ Media Oriented System Transport (MOST)

Discrete lines
The COMAND operating, display and controller unit has the following direct connections:
- Circuit 30
- Circuit 31
- Wake-up for MOST (bidirectional)
- AUX input (accessible in glove compartment), except code 518 Media interface
- Telephone MUTE
- Antenna input, frequency modulation (FM) 1 and FM2
- Bluetooth antenna (A2/91)
- Microphone SBS (B25/7)
- E-net compensator (A28/3)
- Roof antenna (A2/49)
- UPCI [UHI] cell phone holder (Universal Portable Cell Phone Interface) (A34/15) (except code 494 USA version)
- Emergency call system control unit (N123/4) with code 359 TELE AID emergency call system
- Television (TV) input, except code 494 USA version

Data bus/CAN bus
- The COMAND operating, display and controller unit is a subscriber of the class B Controller Area Network Bus (interior) (CAN-B)

MOST
Control and audio signals from the following control units:
- Amplifier for sound system (N40/3) with code 810 Sound system
- Digital Audio Broadcasting control unit (N87/3), with code 537 Digital radio and code 833 Great Britain version
- SDAR control unit (N87/5), with code 536 SIRIUS satellite radio and with code 494 USA version
- Media interface control unit (N125/1), with code 518 Media interface
- TV combination tuner (analog/digital) (A90/1), with code 863 Digital/analog TV tuner

Evaluation of input factors
The input values are processed by the COMAND operating, display and controller unit.

Actuates output media
The following direct output signals are possible:
- Audio OUT (speakers), except code 810 Sound system
- External fan (power supply, speed control and diagnosis)
- Power supply (GPS antenna (A2/49a2), FM amplifier, Bluetooth)

Component Identification:

The COMAND operating, display and controller unit consists of the following components:
- Control panels for controlling the audio, navigation and telematics functions
- Digital Versatile Disk (DVD) drive, with code 527 COMAND APS with single DVD drive (with navigation system)
- 6-disk DVD changer, with code 528 COMAND including DVD changer or with code 512 COMAND APS with DVD changer
- Central computer
- Hard disk, except code 528 COMAND with DVD changer
- Navigation processor, except code 528 COMAND with DVD changer
- Audio amplifier, except code 810 Sound system
- Voice control, except code 528 COMAND with DVD changer

Variants
- Single CD/DVD with SD drive and High End navigation module (integrated hard disk), with code 527 COMAND APS with single DVD drive (with navigation system)
- 6-disk CD/DVD changer with SD drive with High End navigation module (integrated hard disk) and voice control system, with code 512 COMAND APS with DVD changer
- 6-disk CD/DVD changer with SD drive, with code 528 COMAND with DVD changer