Volume Adjustment; Speed-Dependent Volume Adjustment; To Adjust The Tone Characteristic - Mercedes-Benz 420 SEL 1989 Owner's Manual

Volume adjustment

To reduce volume, press volume con­
trol button downward;
to increase volume, press the button
upward.
A fader control, located in the center
console, allows for balancing the vol­
ume level between the front and rear
speakers.
The left to right stereo balance may
be adjusted by first pressing the func­
tion control button Q | and then
pressing the bass control button
or the treble control button
will cause the stereo balance to shift
either left or right respectively.
To center the left to right stereo bal­
ance, briefly press both buttons (
and simultaneously.
The stereo balance setting will be dis­
played (as shown below) when the
balance feature is activated. The
magnitude of the setting is shown by
a number from 0 to 8. Bracketing this
number are two arrows indicating the
direction of the setting. For example:
< 0 > = null or centered balance
< 5 = balance shifted 5 units left
7 > = balance shifted 7 units right.
54

Speed-Dependent Volume Adjustment

The radio includes e special function that adjusts radio volume in respect to
vehicle speed.

To adjust the tone characteristic

Bass D and treble § H can be adjusted independently.
To set the radio to a "flat" tone setting (bass and treble at mid-range setting),
briefly press both tone control buttons
setting indicators display the selected mid-range setting:
P _ _
-j-= =
Mid-range Setting
Upon pressing either tone control button ( e it h e r ^ |o r |Q ) , the bass or treble
. This
will increase until the respective tone control button is released or when the
maximum tone level is reached.
^ - = = Maximum Treble
p _
- j- g = Maximum Bass
After reaching the maximum tone level, the tone setting will stay at that level
unless the tone control button is released and pressed again, at which point the
tone level will begin decreasing. It will stop decreasing when the tone control
button is released or when the minimum tone level is reached.
p
—=
= Minimum Treble
p _
j - = = Minimum Bass
After reaching the minimum tone level, the tone setting will stay at that level
unless the tone control button is released and pressed again. After pressing the
tone control button again the tone level will begin to increase and the cycle is
repeated.
and simultaneously. The tone