Volume/tone adjustments, function - GF82.60-P-2003PMD

Model 203.0 /2 /7 as of 24.4.04 with CODE (494) USA version except CODE (528) HIGH Class USA except CODE (530) COMAND APS USA (with navigation system) 

All volume and sound settings are carried out at the operating unit of the radio (A2). It is necessary to distinguish between audio sources and service sources:

Audio sources are

• Radio tuner
• CD drive

Service sources include:

• Traffic messages
• Telephone system
• Voice control system (VCS)

Volume setting 

The volume setting is regulated at the combination push and rotary button of the radio (A2) for each of the selected audio sources.

In addition, it can be set separately in all audio and service areas (telephone, traffic information radio channel).

Via the "TP Vol." softkey assignment, it is possible to increase or decrease the volume for the traffic information. Using the "Reset" function, predefined sound settings (bass and treble) can be reset to the manufacturer default settings.

Speed-dependent volume control (SDV) 

The volume is adapted to the noise level in the passenger compartment by GAL and the automatic vehicle interior noise adaptation feature. In the process the signal input to the sound amplifier microphone (B25/6) and the vehicle speed signal are used as reference values.

Mute 

If the user presses the function key "Mute", the audio source currently being listened to is muted and the CD drive changes to a pause status.

The muting function status can also be triggered automatically. If the vehicle has a telephone system, the radio (A2) switches to telephone mode in the event of an incoming call, and the audio source is muted when the call is answered.

Tone setting 

The radio (A2) permits manual tone settings (bass, treble, balance, and fader) for each audio source. The "AUDIO" function state can be called up from every other function state, except "AUTO-ON".

The messages of the "AUDIO" function state are output on the display of the radio (A2). The bass is shown as the first sound setting called up. By pressing the "AUDIO" function key repeatedly, the other sound controls for treble, balance (left/right), fader (front/rear), increased volume and traffic announcements can be called up.

The tone control only relates to the active system function status. With a change in sound emphasis (balance, fader) the relative ratio of the volume of the individual speakers changes. The settings "balance" and "fader" are called up by pressing the main function key for sound distribution in the left control field of the radio (A2). The signal processing required for the volume and sound settings is carried out by the radio (A2) or the sound amplifier (A2/13) (models 203.05/09/75 with code (810) Sound system).

	Radio mode, function	Up to 30.11.04	GF82.60-P-2001PMD
		As of 1.12.04	GF82.60-P-2001PND
	CD-player mode, function	Up to 30.11.04	GF82.60-P-2002PMD
		As of 1.12.04 up to 31.5.05	GF82.60-P-2002PND
		As of 1.6.05	GF82.60-P-2002PNF
	Telephone mode, function	With code (388) portable cellular telephone, UHI system	GF82.85-P-2007PMD
	Data exchange between the operating unit and instrument cluster, function		GF82.85-P-3004PMU