display MERCEDES-BENZ C CLASS COUPE 2003 Service Manual

165
Controls in detail
Audio system


SP: The tone level is set for
“Speech”, optimizing the sound for
spoken language.


AMB
: The tone level is set for “Ambi-
ence”, producing a three-dimen-
sional sound.


OFF
: The audio system sound selec-
tion is turned off.
Telephone* muting
If a telephone has been installed in the ve-
hicle, the radio will switch to telephone
mode when a call is received. The current
audio source is muted.
Radio mode
Selecting radio mode
Press the
b
button.
Selecting the band
You can select from among FM, AM or WB
frequency bands.
FM frequency band:
FM (ultra-short wave) 87.9......107.9 MHz
AM frequency bands:
MW (medium wave) 530......1710 KHz
WB (long wave) approx. 162 KHz Selecting FM band

Press the
FM function button.
FM appears in the upper right-hand cor-
ner of the display.
Selecting AM band

Press the
AM function button.
AM appears in the upper right-hand cor-
ner of the display.
Selecting a station
The following options are available for se-
lecting a station:


Direct frequency band input


Manual tuning


Automatic seek tuning


Scan tuning


Station buttons


Automatic station memory (Autostore)

167
Controls in detail
Audio system
Scan tuning

Starting scan tuning
Select the desired frequency band.

Press the
2
button.
SC will appear on the display. The
radio briefly tunes into all receiv-
able stations on the band selected.
The first scan will tune only the sta-
tions with a strong signal. The sec-
ond scan will tune every receivable
station.


Ending scan tuning
Press the
2
button or the
d
,
c
, f
or
e
button.
SC disappears from the display. Station memory
You can store 10 AM and 10 FM stations.


Storing stations
Tune in the desired station.

Press and hold the desired station
button
1 to 0 until a brief signal
tone is heard.
The frequency is stored on the se-
lected station button.


Retrieving a station from memory
Press the desired station button 1
to 0.
Storing stations automatically
(Autostore)
The Autostore memory function provides
an additional memory level. The station
m e m o r y f o r m a n u a l l y s t o r e d s t a t i o n s i s n o t
erased.


Calling up the Autostore memory level
Briefly press the
AS key.
AS appears on the display in in-
versed-color format.
The radio finds the 10 stations with
the strongest signals. These sta-
tions are stored on the station but-
tons 1 to 0 in the order of signal
strength.


Retrieving a station from memory
Press the desired station button 1
to 0.


Leaving the Autostore memory level
Press the
AS key.
AS appears on the display in in-
versed-color format.

168 Controls in detailAudio systemWeather band
Press the
WB key.
The last weather band station is tuned
in.

Select the desired weather band sta-
tion with buttons 1 to 7.
If a station cannot be tuned in, a scan
is automatically started.

Press the
f
or
e
button. The
next receivable weather band station is
tuned in.
Cassette mode
Playing cassettes
Press the
3
button.
The display folds down and the cas-
sette slot becomes visible.

Press the cassette into the slot until it
engages and tap it gently.
The cassette will be pulled in automati-
cally. The system switches to cassette
mode (
TAPE
). Track 1 will be played and
SIDE 1
appears in the display. Track 1
is the side of the cassette which is fac-
ing upward. The cassette deck will au-
tomatically detect the type of tape.

Fold the display back up and press gen-
tly on the display fram e to lock in place.
or

If a cassette is already in the mecha-
nism, press the
j
button.
Track selection

Press the
TRK
key.
Upon selection of the track, the display
shows
SIDE 1
or
SIDE 2
corresponding-
ly.

You can switch track sides at any time.
The track side will be changed auto-
matically at the end of the tape.
iDo not press directly on the display
face.
iA warning signal will sound after 20
seconds if the display is left in the
down position. If the display is not
closed, a warning signal will sound and
the radio will be muted.

169
Controls in detail
Audio system
Cassette eject
Press the eject button
3
.
The display will fold down and the cas-
sette will be ejected. The system will
switch back to radio mode automatical-
ly.

Fold the display back up. Track search
Track search forward

Press the
f
button.
SEEK FWD
will appear in the display. The
track search will run the tape forward
to the start of the next track and switch
to play. Track search backward

Press the
e
button.
SEEK RWD
will appear on the display.
The track search will run the tape back-
ward to the start of the track currently
playing and switch to play.
Stopping track search

Press the
d
, c
, f
or
e

button.
The cassette will switch over to Play.
iThe cassette will not be ejected when
the system is switched off or switched
to another operating mode.
iThe cassette will not be ejected when
the system is switched off or switched
to another operating mode.

170 Controls in detailAudio systemScanning
Press the
2
button.
SC will appear on the display.
Each track on the cassette will be
played briefly in ascending order.
Stopping scan:

Press the
2
, d
, c
, f
or
e
button.
The system will switch to Play. Fast forward/reverse
Starting cassette fast forward mode:

Press the
d
button.
FORWARD
will appear on the display.
Starting cassette fast reverse mode:

Press the
c
button.
REWIND
will appear on the display.
The cassette will automatically switch over
to the play mode at the end or beginning of
the tape. Stopping the cassette fast forward/re-
verse mode:

Press the
d
, c
, f
or
e

button.
The cassette will switch over to the
play mode.

171
Controls in detail
Audio system
Skipping blank sections (skip blank)
Switching on the skip blank function
Press the
SB key.
SB appears on the display in in-
versed-color format.
If the system does not detect a sound
signal, the cassette will automatically
fast forward to the next sound signal.
Switching off the skip blank function

Press the
SB key.
The inversed-color
SB display disap-
pears. Dolby NR
1 (noise reduction system)
To enable optimum sound reproduction of
cassettes recorded using Dolby B NR
1, the
Dolby NR
1 system should be switched on.
Switching on

Press the
NR key.
NR appears on the display in in-
versed-color format. Switching off

Press the
NR key again.
The inversed-color
NR display disa-
pears.
1DOLBY and the double-D symbol
Ù
are trade-
marks of Dolby Laboratories Licensing Corpora-
tion.
The Dolby noise reduction system is manufactured
under license from Dolby Laboratories Licensing
Corporation.
iThe Dolby NR
1 function should be
switched off when playing cassettes
not recorded with Dolby B NR
1.

172 Controls in detailAudio systemCD changer* operating mode
General notes
Should excessively high temperatures oc-
cur while in CD mode,
CD TEMP HIGH
will
appear on the display and muting will take
pl ace . The uni t wil l then s witch ba ck to the
last operating mode used until the temper-
ature has decreased to a safe operating
level.
Should excessively low temperatures oc-
cur while in CD mode,
CD TEMP LOW
will ap-
pear on the display, but the CD will
continue to play.
Handle CDs carefully to prevent interfer-
ence during playback. Avoid fingerprints
and dust on CDs. Do not write on CDs or
apply any label or other material to them.
Use only original CDs. Using copied CDs
may create problems during playback. Clean CDs from time to time with a com-
mercially available cleaning cloth. No sol-
vents, anti-static sprays, etc. should be
used for cleaning. Replace the CD in its
case after use. Protect CDs from heat and
direct sunlight.
Only use CDs, which bear the label shown
and that conform to the compact disc dig-
ital audio standard (IEC 60908).
Use of CDs which do not meet this stan-
dard may cause damage to the CD chang-
er. Do not play single-CDs (80 mm) with an
adapter.
Operational readiness of CD changer
If a CD changer has been installed in the
system, it can be operated from the front
control panel of the radio. A loaded maga-
zine must be installed for CD playing.
Loading/unloading the CD magazine

Slide the changer door to the right and
press the eject button
3
.

The magazine will be ejected.Warning!
G
The CD changer* is a Class 1 laser product.
There is a danger of invisible laser radiation
if the cover is opened or damaged.
Do not remove the cover. The CD changer*
does not contain any parts which can be ser-
viced by the user. For safety reasons, have
any service work which may be necessary
performed only by qualified personnel.


173
Controls in detail
Audio system
1
CD
2 CD changer
3 CD tray
4 CD magazine
Remove the magazine and pull the CD
tray fully out.

Place the CD in the recess of the tray,
label side up.

Push the tray into the magazine in the
direction shown by the arrow.

Push the magazine into the CD changer
in the direction shown by the arrow and
close the sliding door.
Playing CDs

Press the
i
button.
CD will appear on the display.
The CD most recently listened to will then
start playing at the point where it was last
switched off.
After the last track on a CD has finished,
the next CD is automatically played. Selecting CDs

You can select from among the CDs in
the CD magazine using buttons
1 to 6.CD a n d t h e m a g a z i n e s l o t n u m b e r o f t h e
s e l e c t e d C D a p p e a r o n t h e d i s p l a y . T h e
number of the current track is dis-
played after
TRACK
.
If there is no CD in the selected maga-
zine slot,
NO CD
appears on the display
with the corresponding slot number.
iCDs which have been inserted improp-
erly or are unreadable will not be
played.

174 Controls in detailAudio systemSkipping tracks forward/backward
Skipping tracks forward:
Press the
f
button.
The next track will be played.
Skipping tracks backward:

Press the
e
button.
If the track has been playing for more
than 10 seconds, it will revert to the
start of that track. If it has been playing
for less than 10 seconds, it will revert
to the preceding track.
Repeated pressing of the
f
or
e

button will result in multiple tracks being
skipped. Fast forward/reverse
Fast forward:

Press and hold the
d
button until
the desired location has been reached.
Reverse:

Press and hold the
c
button until
the desired location has been reached. Scanning
Starting scan:

Press the
2
button.
SC appears in the display.
Each track on the current CD will be
played for approx. 8 seconds in as-
cending order.
Ending scan:

Press the
2
button,
d
, c
,
f
or
e
button.
iThe relative time of the track is shown
on the display during search.

175
Controls in detail
Audio system
Random play
The random play function (RDM) plays the
tracks on the current CD in random order.
Switching on random play:
Press the
RDM
key.
RDM
appears on the display in in-
versed-color format.
Switching off random play:

Press the
RDM
key again.
The inversed-color
RDM
display disap-
pears. Repeat
The repeat function (RPT) repeats the cur-
rent track.
Switching on repeat:

Press the
RPT
key.
RPT
appears on the display in in-
versed-color format.
Switching off repeat:

Press the
RPT
key again.
The inversed-color
RPT
display disap-
pears. Track and time display

Press the
T key.
The number of the track being played
and the elapsed playing time appear in
the display.

Press the
T key again.
The total number of tracks and the total
playing time of the CD appear in the
display.
The CD main menu appears again after
8seconds.
iThe Random play and Repeat function
cannot be used simultaneously.