Mercedes-Benz 190 E2.3 1985 Owner's Manual page 48

A fader control, installed in the center console, allows for balancing the sound
level between the front and rear speakers.
To adjust the tone characteristic
To set the radio to a "flat" tone setting (bass and treble at mid-range setting),
briefly press both tone controls H I u
Upon pressing either tone button, the tone level for that function (either bass Q
or treble H ) will begin increasing. It stops increasing when the button is released
or when the maximum tone level is reached (approx. 2.5 seconds).
After reaching the maximum tone level, the tone control will stay at that level
unless the tone button is released and pressed again.
Once the tone button is pressed again the tone level will start decreasing. It will
stop decreasing when the button is released or when the minimum tone level is
reached (approx. 5 seconds).
After reaching the minimum tone level, the tone control will stay at that level
unless the tone button is released and pressed again. After pressing the tone
button again the tone level will begin to increase and the cycle is repeated.
Note: It takes approx. 5 seconds to go from minimum tone level to maximum tone
level.
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simultaneously.
To select AM or FM
Press any of the buttons marked
m through 0 0 to tune the radio to the
FM band.
Press any of the buttons marked
EZ3 through E J| to tune the radio to the
AM band.
To tune to a station
Stations can be tuned in by using auto­
matic search, direct frequency dialing,
manual tuning, or by preset push but­
tons. The frequency of the station
selected is indicated on the digital dis­
play.
Automatic station search
Switch to the wave band desired by
pressing any of the following buttons:
for FM, buttons H 3 through DT3
for AM, buttons g jjj through QJJ.
By pressing the automatic station
seeker bar upward the radio
will search for stations in ascending
frequencies, by pressing down it will do
so in descending frequencies. The
direction of automatic searching can be
reversed by pressing the bar
in the respective direction.
In order to arrive at a desired station
without stopping, the bar has to be held
in the desired direction.