On-board monitor control panel (BMBT)

Function

The control panel for the on-board monitor is the keypad with which the on-board monitor system is operated. The key functions are routed via the I-bus to the relevant control units.

The radio and telephone are also operated via the on-board monitor control panel.

The cassette drive which is controlled from the radio is accommodated in the on-board monitor control panel.

Only one connection line leads to the LCD monitor for switching ON/OFF and for controlling the brightness of the LCD on-board monitor (PL line).

The LEDs are activated by I-bus data telegrams from the corresponding control units (telephone, radio, independent heating).

The on-board monitor control panel switches the LCD on-board monitor ON and OFF via the PL line. The PL signal serves the purpose of controlling the background lighting of the LCD screen.

• LCD screen ON: As of ignition lock position 1 or after pressing key with alarm function (e.g. pressing CLOCK key)
  
• LCD screen OFF: By switching the ignition lock to 0 position or after selecting the menu point "Screen OFF".
  

Components

The on-board monitor control panel consists of:

• Keypad for operating the on-board monitor functions and audio system
  
• Cassette drive for audio cassettes