To Select Am Or Fm; Seek Tuning; Scan Tuning; Tuning Sensitivity Button - Mercedes-Benz 420 SEL 1989 Owner's Manual

Note:
It takes approx. 5 seconds to go from
minimum tone level to maximum tone
level.
This radio has 3 tone setting memo­
ries, one each for AM, FM and casset­
te. The individual tone setting for each
mode will be automatically stored.

To select AM or FM

Press anyof the buttons marked
through R J ] to tune the radio to the
FM b a n c ^ ^
Press any of the buttons marked
through t0 tune the radio to the
AM b a n c k ^
The selected wave band is indicated
in the digital display.
To tune-in a station
Stations can be tuned-in by using
seek/scan tuning, direct frequency
tuning, manual tuning, or by preset
pushbuttons. The frequency of the
station selected is indicated in the di­
gital display.

Seek tuning

Switch to the desired wave band,
press the seek tuning bar Q
upward to automatically seek stations
in ascending frequencies, press
downward to do so in descending fre­
quencies. In order to arrive at a de­
sired station without stopping, the bar
must be held in the desired direction.
The direction of seek tuning can be
reversed by pressing the b a r ^ ^ flin
the respective direction.

Scan tuning

Switch to AM or FM, then press the
scan tuning b a r g J B t0 automatically
tune to the first station broadcasting
within the selected reception sensitivi­
ty level. This station is held for "audi­
tioning" for approx. 5 seconds. If de­
sired, this station may be locked in by
pressing the J 2 H o r | ^ 3 bar. If neith­
er of the bars is pressed, the radio will
continue to scan to each station with­
in the selected sensitivity level and
"audition" each station for approx. 5
seconds.
By pressing the scan tuning bar
0 upward the radio will scan sta­
tions in ascending frequencies, by
pressing downward it will do so in
descending frequencies.

Tuning sensitivity button

By pressing the tuning sensitivity
button F W once or twice, you can
select the desired sensitivity level for
seek/scan tuning. The sensitivity indi­
cator displays the selected sensitivity
level:
I =
least sensitive (the automatic
station seeker/scanner stops
only at strong stations)
f = average (the automatic seeker/
scanner stops at strong and
moderate strength stations)
f 1 = most sensitive (the automatic
station seeker/scanner also
stops at weak stations)
If no stations are located by the seek
or scan functions during one com­
plete pass through the selected wave
band, the tuning sensitivity will auto­
matically switch to the next higher
sensitivity level and be indicated as
shown above.
When switched off, the radio returns
to the "least sensitive" level.
Note: The tuning sensitivity button
has no influence on reception quality,
only on the sensitivity of station selec­
tion during the automatic station
seeker/scanner modes.