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GF82.60-P-0004-07GQ Audio System Switch on/Off Characteristics



GF82.60-P-0004-07GQ Audio System Switch On/off Characteristics
- with CODE (510) Audio 20 with CD changer
- with CODE (523) MB Audio 20 radio


General
The switch on/off characteristic comprises the following subfunctions:
^ Activating the overall system
^ Characteristics when pressing the "Switch on/off" button
^ Switch-off characteristics when transmitter key (A8/1) is removed
^ Switch-off characteristics in the event of undervoltage

Activating the overall system
When the vehicle is opened, all data bus systems are activated to ensure a faster switch-on procedure. After inserting the transmitter key into the EIS [EZS] control unit (N73) and rotating it to position 1 (status "Circuit 15 R ON"), the display of the radio (A2) is switched on, provided that it was on when the transmitter key was last removed. The system that was active before the transmitter key was removed last (e.g. radio tuner) is switched on and the corresponding start menu is displayed. If the radio was switched off, a warning always appears containing general information about how to use the system.

Characteristics when pressing the "Switch on/off" button
The radio can also be switched on by pressing the "Switch on/off" button with the transmitter key removed (status "Circuit 15 C OFF"). All the functions are then available for t = 30 minutes Then the radio automatically switches itself off.

Switch-off characteristics when transmitter key is removed
The radio is switched off when the transmitter key is removed status "Circuit 15C OFF"). If the radio is switched off, it is always in "Standby" mode when the interior CAN is active.

Switch off characteristics at undervoltage
Switch off characteristics at undervoltage In the event of undervoltage of the battery (G1), a message appears on the radio display requesting that the engine be started. If the engine is not started, after t = 3min another warning is issued stating that 10 s remain for switching on the engine before the audio system shuts down.

If the audio system has switched itself off and the on-board voltage increases again, the radio does not automatically switch itself on again. The audio system can be switched on again manually. The warning procedure then runs again, until the cause for the undervoltage is rectified.