Sony CDX-4800X User manual

Operating Instructions
Manual de instrucciones
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© 2000 Sony Corporation
FM/AM
Compact Disc
Player
CDX-4800X
For installation and connections, see the supplied installation/connections manual.
Para obtener información sobre la instalación y las conexiones, consulte el manual
de instalación/conexiones suministrado.
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3-044-885-11 (1)
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2
Welcome !
Thank you for purchasing the Sony Compact
Disc Player. This unit lets you enjoy a variety
of features using the following controller
accessory:
Optional accessory
Rotary commander RM-X4S
Precautions
• If your car was parked in direct sunlight
resulting in a considerable rise in
temperature inside the car, allow the unit to
cool off before operating it.
• If no power is being supplied to the unit,
check the connections first. If everything is in
order, check the fuse.
•If your car is equipped with a power aerial, it
will extend automatically while the unit is
operating.
If you have any questions or problems
concerning your unit that are not covered in
this manual, please consult your nearest Sony
dealer.
Moisture Condensation
On a rainy day or in a very damp area,
moisture may condense on the lenses inside
the unit. Should this occur, the unit will not
operate properly. In such a case, remove the
disc and wait for about an hour until the
moisture has evaporated.
To maintain high quality sound
If you have drink holders near your audio
equipment, be careful not to splash juice or
other soft drinks onto the unit and CD. Sugary
residues on the unit or CD may contaminate
the lenses inside the unit, reduce the sound
quality, or prevent sound reproduction
altogether.

3
Notes on CDs
A dirty or defective disc may cause sound
dropouts while playing. To enjoy optimum
sound, handle the disc as follows.
Handle the disc by its edge. To keep the disc
clean, do not touch the surface.
Do not stick paper or tape on the disc.
Do not expose the discs to direct sunlight or
heat sources such as hot air-ducts, or leave
them in a car parked in direct sunlight where
there can be a considerable rise in temperature
inside the car.
Before playing, clean the discs with an optional
cleaning cloth. Wipe each disc from the center
out.
Do not use solvents such as benzine, thinner,
commercially available cleaners, or antistatic
spray intended for analog discs.
Notes on discs
If you use the discs explained below, the sticky
residue can cause the CD to stop spinning and
may cause malfunction or ruin your discs.
Do not use second-hand or rental CDs that
have a sticky residue on the surface (for
example, from peeled-off stickers or from ink,
or glue leaking from under the stickers).
There are paste residue.
Ink is sticky.
Do not use rental CDs with old labels that are
beginning to peel off.
Stickers that are beginning
to peel away, leaving a
sticky residue.
Do not use your CDs with labels or stickers
attached.
Labels are attached.
Notes on CD-R discs
•You can play CD-Rs (recordable CDs) on this
unit. However depending on the conditions
of the recording equipment or the CD-R disc
itself, some CD-Rs cannot be played on this
unit.
•You cannot play a CD-R that is not finalized
(Finalization is necessary for a recorded CD-
R disc to be played on the audio CD player).
•You cannot play CD-RWs (rewritable CDs)
on this player.
When you play 8 cm CDs
Use the optional Sony compact disc single
adaptor (CSA-8) to protect the CD player from
damage.

4
Table of Contents
Location of controls ............................................. 5
Getting Started
Resetting the unit ................................................. 6
Detaching the front panel ................................... 6
Turning the unit on/off ....................................... 7
How to use the menu .......................................... 7
Setting the clock ................................................... 7
CD Player
Listening to a CD ................................................. 8
Playing a CD in various modes ....................... 10
Radio
Memorising stations automatically
— Best Tuning Memory (BTM)................... 10
Memorising only the desired stations............. 11
Receiving the memorised stations ................... 11
Storing the station names
— Station Memo ........................................... 12
Other Functions
Labelling the rotary commander ..................... 13
Using the rotary commander ........................... 14
Adjusting the sound characteristics ................ 15
Attenuating the sound ...................................... 15
Changing the sound and display settings ...... 16
Boosting the bass sound
— D-bass ........................................................ 16
Additional Information
Maintenance........................................................ 17
Dismounting the unit ........................................ 18
Specifications ...................................................... 19
Troubleshooting guide ...................................... 20

5
Location of controls
1Volume control dial
2MENU button 7, 9, 10, 11, 12, 13, 16
3 Z(eject) button (located on the front
side of the unit behind the front panel)
8
4DISC/PRST +/– (cursor up/down) buttons
7, 9, 10, 11, 12, 13, 16
During radio reception:
Preset stations select 11
5DSPL (display mode change) button
8, 9, 13
6MODE button
During radio reception:
BAND select 10, 11
7SOURCE (TUNER/CD) button
7, 8, 9, 10, 11
8Display window
9OPEN button 6, 8, 17
q; D-BASS button 16
qa SOUND button 15
qs Reset button (located on the front side
of the unit behind the front panel) 6
CDX-4800X
MODE
DSPL
OFF
ENTER
MENU
SOUND
1 2 3 4 56
- SEEK/AMS
REP SHUF
OPEN
D-BASS
SOURCE
P
R
S
T
+
P
R
S
T
–
qd OFF button*6, 7, 8
qf SEEK/AMS –/+ (cursor left/right) buttons
7, 9, 11, 12, 15, 16
Automatic Music Sensor 9
Manual Search 9
Seek 11
qg Frequency select switch (located on the
bottom of the unit)
The AM (FM) tuning interval is factory-set
to the 10 k (200 k) position. Make sure that
the 9 k (50 k) position is selected.
qh ENTER button 7, 9, 10, 11, 12, 13, 16
qj Number buttons
During radio reception:
Preset number select 11
During CD playback:
(1) REP 10
(2) SHUF 10
*Warning when installing in a car
without ACC (accessory) position on
the ignition key switch
Be sure to press (OFF) on the unit for
two seconds to turn off the clock display
after turning off the engine.
When you press (OFF) momentarily, the
clock display does not turn off and this
causes battery wear.
Refer to the pages listed for details.

6
Attaching the front panel
Place the hole Ain the front panel onto the
spindle Bon the unit as illustrated, then push
the left side in.
x
Notes
• Be careful not to attach the front panel upside
down.
•Do not press the front panel too hard against the
unit when attaching it.
•Do not press too hard or put excessive pressure
on the display window of the front panel.
•Do not expose the front panel to direct sunlight
or heat sources such as hot air ducts, and do not
leave it in a humid place. Never leave it on the
dashboard of a car parked in direct sunlight or
where there may be a considerable rise in
temperature.
Caution alarm
If you turn the ignition key switch to the OFF
position without removing the front panel, the
caution alarm will beep for a few seconds.
If you connect an optional power amplifier and
do not use the built-in amplifier, the beep
sound will be deactivated.
Getting Started
Resetting the unit
Before operating the unit for the first time or
after replacing the car battery, you must reset
the unit.
Remove the front pannel and press the reset
button with a pointed object, such as a ball-
point pen.
Reset button
Note
Pressing the reset button will erase the clock
setting and some memorised functions.
Detaching the front panel
You can detach the front panel of this unit to
protect the unit from being stolen.
1Press (OFF).
2Press (OPEN), then slide the front panel
to the right side, and pull out the left
side of the front panel.
Notes
• Do not put anything on the inner surface of the
front panel.
• Be sure not to drop the panel when detaching it
from the unit.
•If you detach the panel while the unit is still
turned on, the power will turn off automatically
to prevent the speakers from being damaged.
•When carrying the front panel with you, use the
supplied front panel case.
1
2
A
B

7
Turning the unit on/off
Turning on the unit
Press (SOURCE) or insert a CD in the unit. For
details on operation, refer to page 8 (CD
player) and page 10 (radio).
Turning off the unit
Press (OFF) to stop CD playback or FM/AM
reception (the key illumination and display
remain on).
Press (OFF) for two seconds to completely
turn the unit off.
Note
If your car has no ACC position on the ignition key
switch, be sure to turn the unit off by pressing
(OFF) for two seconds to avoid car battery wear.
How to use the menu
This unit is operated by selecting items from a
menu.
To select, first enter the menu mode and
choose up/down ((+)/(–) of (PRST)), or
choose left/right ((–)/(+) of (SEEK/AMS)).
(PRST)
SOURCE
(SEEK/AMS)
SOURCE
Setting the clock
The clock uses a 12-hour digital indication.
Example: To set the clock to 10:08
1Press (MENU), then press either side of
(PRST) repeatedly until “CLOCK”
appears.
1Press (ENTER).
The hour indication flashes.
2Press either side of (PRST) to set the
hour.
3Press (+) side of (SEEK/AMS).
The minute indication flashes.
4Press either side of (PRST) to set the
minute.
2Press (ENTER).
The clock starts.
After the clock setting is completed, the
display returns to normal play mode.
Note
In the initial setting, the clock indication appears
while the unit is turned off.
When the D.INFO mode is set to ON, the time is
always displayed (page 16).
(+): to select upwards
(–): to select downwards
(–): to select
leftwards (+): to select rightwards

8
CD Player
Listening to a CD
1Press (OPEN) and insert the CD.
Labelled side up
2Close the front panel.
Playback starts automatically.
If a CD is already inserted, press (SOURCE)
repeatedly until “CD” appears to start
playback.
CD indication
When the last track on the CD is
over
The track number indication returns to “1,”
and playback restarts from the first track of the
CD.
To Press
Stop playback (OFF)
Eject the CD (OPEN) then Z
Elapsed playing timeTrack number
Changing the display item
Each time you press (DSPL) during CD TEXT
disc playback, the item changes as follows:
V
Track number/
Elapsed playback time
V
Disc name/Artist name*1
V
Track name*2
*1If you play a CD TEXT disc, the artist name
appears in the display after the disc name. (Only
for CD TEXT discs with the artist name.)
*2If the track name of a CD TEXT disc is not
prerecorded, “TRACK” and “NO NAME” appear
in the display.
After you select the desired item, the display
will automatically change to the Motion
Display mode after a few seconds.
In the Motion Display mode, all the items are
scrolled in the display one by one in order.
Tip
The Motion Display mode can be turned off. (See
“Changing the sound and display settings” on
page 16.)
Z

9
Automatically scrolling a disc name
— Auto Scroll
If the disc name, artist name, or track name on
a CD TEXT disc exceeds 8 characters and the
Auto Scroll function is on, information
automatically scrolls across the display as
follows:
• The disc name appears when the disc has
changed (if the disc name is selected as the
display item).
• The track name appears when the track has
changed (if the track name is selected as the
display item).
• The disc or track name appears depending on
the setting when you press (SOURCE) to select
CD TEXT disc.
If you press (DSPL) to change the display
item, the disc or track name of the CD TEXT
disc is scrolled automatically whether you set
the function on or off.
1During playback, press (MENU).
2Press either side of (PRST) repeatedly
until “A.SCRL-OFF” appears.
3Press the (+) side of (SEEK/AMS) to select
“A.SCRL-ON.”
4Press (ENTER).
To cancel Auto Scroll, select “A.SCRL-OFF” in
step 3.
Note
For some CD TEXT discs with very many characters,
the following cases may happen:
— Some of the characters are not displayed.
— Auto Scroll does not work.
Locating a specific track
— Automatic Music Sensor (AMS)
During playback, press either side of
(SEEK/AMS) momentarily for each track
you want to skip.
SOURCE
Locating a specific point in a track
— Manual Search
During playback, press and hold either
side of (SEEK/AMS). Release when you
have found the desired point.
SOURCE
Note
If “ ” or “ ” appears in the
display, you have reached the beginning or the
end of the disc and you cannot go any further.
To locate
preceding
tracks
To locate
succeeding
tracks
To search
forward
To search
backward

10
Radio
Memorising stations
automatically
— Best Tuning Memory (BTM)
The unit selects the stations with the strongest
signals and memorises them in the order of
their frequencies. You can store up to 6 stations
on each band (FM1, FM2, FM3, AM1, and
AM2).
Caution
When tuning in stations while driving, use
Best Tuning Memory to prevent accidents.
1Press (SOURCE) repeatedly to select the
tuner.
Each time you press (SOURCE), the source
changes as follows:
Tuner yCD
2Press (MODE) repeatedly to select the
band.
Each time you press (MODE), the band
changes as follows:
BFM1 BFM2 BFM3
AM2 bAM1b
3Press (MENU), then press either side of
(PRST) repeatedly until “BTM” appears.
4Press (ENTER).
The unit stores stations in the order of their
frequencies on the number buttons.
A beep sounds when the setting is stored.
Notes
•The unit does not store stations with weak
signals. If only a few stations can be received,
some number buttons will retain their former
setting.
•When a number is indicated in the display, the
unit starts storing stations from the one currently
displayed.
•If a CD is not in the unit, only the tuner band
appears even if you press (SOURCE).
MODE
DSPL
PTY
ENTER
1 2 3 4 56
- SEEK/AMS
REP SHUF
MODE
DSPL
PTY
ENTER
1 2 3 4 56
- SEEK/AMS
REP SHUF
Playing a CD in various
modes
You can play CDs in various modes:
•REP (Repeat Play) repeats the current track.
•SHUF (Shuffle Play) plays all the tracks in
random order.
Playing tracks repeatedly
— Repeat Play
During playback, press (1) (REP).
Repeat Play starts.
To return to normal play mode, select “REP-
OFF.”
Playing tracks in random order
— Shuffle Play
During playback, press (2) (SHUF).
Shuffle Play starts.
To return to normal play mode, select “SHUF-
OFF.”

11
Memorising only the
desired stations
You can preset up to 18 FM stations (6 each for
FM1, FM2, and FM3), up to 12 AM stations (6
each for AM1 and AM2) in the order of your
choice.
1Press (SOURCE) repeatedly to select the
tuner.
2Press (MODE) repeatedly to select the
band.
3Press either side of (SEEK/AMS) to tune
in the station that you want to store on
the number button.
4Press the desired number button ((1) to
(6)) for two seconds until “MEM”
appears.
The number button indication appears in
the display.
Note
If you try to store another station on the same
number button, the previously stored station will
be erased.
Receiving the memorised
stations
1Press (SOURCE) repeatedly to select the
tuner.
2Press (MODE) repeatedly to select the
band.
3Press the number button ((1) to (6)) on
which the desired station is stored.
Tip
Press either side of (PRST) to receive the stations
in the order they are stored in the memory (Preset
Search Function).
If you cannot tune in a preset
station
Press either side of (SEEK/AMS) to search
for the station (automatic tuning).
Scanning stops when the unit receives a
station. Press either side of (SEEK/AMS)
repeatedly until the desired station is
received.
Note
If the automatic tuning stops too frequently, press
(MENU), then press either side of (PRST)
repeatedly until “LOCAL” (local seek mode) is
displayed. Then press the (+) side of (SEEK/AMS) to
select “LOCAL-ON.” Press (ENTER).
Only the stations with relatively strong signals will
be tuned in.
Tips
• When you select the “LOCAL-ON” setting,
“L.SEEK” appears while the unit is searching for
a station.
• If you know the frequency of the station you
want to listen to, press and hold either side of
(SEEK/AMS) until the desired frequency appears
(manual tuning).

12
Storing the station names
— Station Memo
You can assign a name to each radio station
and store it in memory. The name of the
station currently tuned in appears in the
display. You can assign a name of up to 8
characters for a station.
Storing the station names
1Tune in a station whose name you want
to store.
2Press (MENU), then press either side of
(PRST) repeatedly until “NAME EDIT”
appears.
3Press (ENTER).
4Enter the characters.
1Press the (+) side of (PRST)
repeatedly to select the desired
characters.
(A tB tC t··· Z t0 t1 t2 t
··· 9 t+ t– t*t/ t\ t> t<
t. t_ )
If you press the (–) side of (PRST)
repeatedly, the characters appear in the
reverse order.
If you want to put a blank space
between characters, select “_” (under-
bar).
2Press the (+) side of (SEEK/AMS) after
locating the desired character.
The next character flashes.
If you press the (–) side of (SEEK/AMS),
the previous character flashes.
3Repeat steps 1and 2to enter the
entire name.
If FM stereo reception is poor
— Monaural Mode
1During radio reception, press (MENU),
then press either side of (PRST)
repeatedly until “MONO-OFF” appears.
2Press the (+) side of (SEEK/AMS) until
“MONO-ON“ appears.
The sound improves, but becomes
monaural (“ST” disappears).
3Press (ENTER).
To return to normal mode, select
“MONO-OFF” in step 2.
Automatical reception frequency
adjustment —IF AUTO function
If interference occurs, the “IF AUTO” function
of this unit will automatically avoid noise and
narrow the reception frequency. In such cases,
some FM stereo broadcasts may become
monaural. If you would like to hear such
broadcasts in stereo, manually switch to the
“WIDE” setting.
1During radio reception, press (MENU),
then press either side of (PRST)
repeatedly until “IF AUTO” appears.
2Press the (+) side of (SEEK/AMS) until
“WIDE” appears.
3Press (ENTER).
Note
When you widen the frequency signal reception
setting (“WIDE” mode), some interference may
occur.

13
5To return to the normal radio reception,
press (ENTER).
Tip
To erase or correct a name, enter “_” (under-bar)
for each character.
Displaying the station name
Press (DSPL) during radio reception.
Each time you press (DSPL), the item
changes as follows:
Station name*yFrequency
*If the station name of a station is not stored,
“NO NAME” appears in the display for one
second.
Erasing the station name
1Tune in a station whose name you want
to erase.
2Press (MENU), then press either side of
(PRST) repeatedly until “NAME DEL”
appears.
3Press (ENTER).
4Press (ENTER) for two seconds.
The name is erased.
Repeat steps 1 through 4 if you want to
erase other names.
5Press (MENU) twice.
The unit returns to the normal radio
reception mode.
Note
When you erase all of the station names, “NO
NAME” appears in step 4.
Other Functions
You can also control the unit with a rotary
commander (optional).
Labelling the rotary
commander
Depending on how you mount the rotary
commander, attach the appropriate label as
shown in the illustration below.
SOUND
DSPL
MODE
SOUND
DSPL
MODE

14
By pushing in and rotating the
control (the PRESET/DISC control)
Push in and rotate the control to:
•Receive the stations memorised on the
number buttons.
Other operations
Tip
If your car has no ACC (accessory) position on the
ignition key switch, be sure to press (OFF) for two
seconds to turn off the clock indication after
turning off the engine.
Using the rotary
commander
The rotary commander works by pressing
buttons and/or rotating controls.
By pressing buttons
(the SOURCE and MODE buttons)
Each time you press (SOURCE), the
source changes as follows:
Tuner tCD
Pressing (MODE) changes the operation
in the following ways:
Tuner: FM1 tFM2 tFM3 tAM1 tAM2
By rotating the control
(the SEEK/AMS control)
Rotate the control momentarily and
release it to:
•Locate a specific track on a disc. Rotate
and hold the control until you locate the
specific point in a track, then release it to
start playback.
•Tune in stations automatically. Rotate and
hold the control to find a specific station.
(SOURCE)
(MODE)
OFF
Rotate the VOL control to
adjust the volume.
Press (OFF) to
turn off the unit.
Press (ATT) to
attenuate the
sound.
Press (DSPL) to display
the memorised names.
Press (SOUND) to
adjust the volume and
sound menu.

15
Adjusting the sound
characteristics
You can adjust the bass, treble, balance, and
fader.
You can store the bass and treble levels
independently for each source.
1Select the item you want to adjust by
pressing (SOUND) repeatedly.
Each time you press (SOUND), the item
changes as follows:
BAS (bass) tTRE (treble) tBAL (left-right)
tFAD (front-rear)
2Adjust the selected item by pressing
either side of (SEEK/AMS).
When adjusting with the rotary
commander, press (SOUND) and rotate the
VOL control.
Note
Adjust within three seconds after selecting the
item.
Attenuating the sound
Press (ATT) on the rotary commander.
“ATT-ON” lights up for a while.
To restore the previous volume level, press
(ATT) again.
Tip
When the interface cable of a car telephone is
connected to the ATT lead, the unit decreases the
volume automatically when a telephone call comes
in (Telephone ATT function).
Changing the operative direction
The operative direction of controls is factory-
set as shown below.
If you need to mount the rotary commander on
the right hand side of the steering column, you
can reverse the operative direction.
Press (SOUND) for two seconds while
pushing the VOL control.
Tip
You can also change the operative direction of
these controls with the unit (see “Changing the
sound and display settings” on page 16).
To increase
To decrease

16
Changing the sound and
display settings
The following items can be set:
SET (setting)
•CLOCK (page 8)
•BEEP — to turn the beeps on or off.
•RM (Rotary Commander) — to change the
operative direction of the controls of the
rotary commander.
— Select “NORM” to use the rotary
commander as the factory-set position.
— Select “REV” when you mount the rotary
commander on the right side of the
steering column.
DIS (display)
•D.INFO (Dual Information) — to display the
clock and the play mode at the same time
(ON).
•M.DSPL (Motion Display) — to turn the
motion display on or off.
•A.SCRL (Auto Scroll) (page 10)
Note
If you connect an optional power amplifier and do
not use the built-in amplifier, the beep sound will
be disabled.
1Press (MENU).
2Presseither sideof (PRST) epeatedly until
the desired item appears.
Each time you press the (–) side of
(PRST), the item changes as follows:
CLOCK tBEEP tRM tD.INFO tM.DSPL
tA.SCRL
Note
The displayed item will differ depending on
the source.
Tip
You can easily switch among categories (“SET”,
“DIS”, “P/M” (play mode), and “EDT” (edit
mode)) by pressing either side of (PRST) for
two seconds.
3Press the (+) side of (SEEK/AMS) to select
the desired setting (Example: ON or OFF).
4Press (ENTER).
After the mode setting is complete, the
display returns to normal play mode.
Boosting the bass sound
— D-bass
You can enjoy a clear and powerful bass
sound.
The D-bass function boosts the low and high
frequency signal with a sharper curve than
conventional bass boost.
You can hear the bass line more clearly even
while the vocal volume remains the same. You
can emphasize and adjust the bass sound
easily with the D-BASS control.
0dB
D.BASS-3
D.BASS-2
D.BASS-1 D.BASS-3
D.BASS-2
D.BASS-1
Frequency (Hz)
Adjusting the bass curve
Press (D-BASS) repeatedly until the
desired bass level (1, 2, or 3) appears in
the display.
To cancel, select “D.BASS-OFF.”
Note
If the bass sound becomes distorted, select a less
effective setting of “D.BASS” or adjust the volume.
Level

17
Additional
Information
Maintenance
Fuse replacement
When replacing the fuse, be sure to use one
matching the amperage rating stated on the
original fuse. If the fuse blows, check the
power connection and replace the fuse. If the
fuse blows again after replacement, there may
be an internal malfunction. In such a case,
consult your nearest Sony dealer.
Warning
Never use a fuse with an amperage rating
exceeding the one supplied with the unit as
this could damage the unit.
Fuse (10 A)
Cleaning the connectors
The unit may not function properly if the
connectors between the unit and the front
panel are not clean. In order to prevent this,
open the front panel by pressing (OPEN), then
detach it and clean the connectors with a
cotton swab dipped in alcohol. Do not apply
too much force. Otherwise, the connectors may
be damaged.
Main unit
Back of the front panel
Notes
• For safety, turn off the engine before cleaning
the connectors, and remove the key from the
ignition switch.
• Never touch the connectors directly with your
fingers or any metal device.

18
Dismounting the unit
1Press the clip inside the front cover with
a thin screwdriver, and gently pry the
front cover free.
2Repeat step 1 on the left side.
The front cover is removed.
3Use a thin screwdriver to push in the clip
on the left side of the unit, then pull out
the left side of the unit until the catch
clears the mounting.
4Repeat step 3 on the right side.
5Slide the unit out of the mounting.

19
Specifications
CD player section
System Compact disc digital audio
system
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range FM tuning interval:
50 kHz/200 kHz
switchable
87.5 – 108 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),
72 dB (mono)
Harmonic distortion at 1 kHz
0.6 % (stereo),
0.3 % (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM
Tuning range AM tuning interval:
9 kHz/10 kHz switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 50 W ×4 (at 4 ohms)
General
Outputs Audio outputs
Power aerial relay control
lead
Power amplifier control
lead
Telephone ATT control
lead
Tone controls Bass ±9 dB at 100 Hz
Treble ±9 dB at 10 kHz
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 ×50 ×183 mm
(w/h/d)
Mounting dimensions Approx. 182 ×53 ×162 mm
(w/h/d)
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and
connections (1 set)
Front panel case (1)
Optional accessories Rotary commander
RM-X4S
Design and specifications are subject to change
without notice.

20
Troubleshooting guide
Problem
No sound.
The contents of the memory
have been erased.
Indications do not appear in the
display.
No beep sound.
Cause/Solution
•Cancel the ATT function.
•Set the fader control to the centre position for two-speaker
system.
•Rotate the dial clockwise to adjust the volume.
•The power cord or battery has been disconnected.
•The reset button has been pressed.
tStore again into the memory.
Remove the front panel and clean the connectors. See
“Cleaning the connectors” (page 17) for details.
•The beep sound is cancelled (page 16).
•If you connect an optional amplifier and do not use the built-
in amplifier, the beep sound will be deactivated.
CD playback
Cause/Solution
•Another CD is already loaded.
•The CD is forcibly inserted upside down or in the wrong
way.
A dirty or defective disc.
The ambient temperature exceeds 50°C.
You have closed the front panel or pushed the disc forcibly
into the unit while the unit was ejecting the disc after you
pressed Z.
tPress the reset button.
Press the reset button.
•The unit is installed at an angle of more than 60°.
•The unit is not installed in a sturdy part of the car.
A dirty or defective disc.
Problem
A disc cannot be loaded.
Playback does not begin.
A disc is automatically ejected.
CD will not be ejected.
The operation buttons do not
function.
The sound skips due to
vibration.
The sound skips.
The following checklist will help you remedy the problems you may encounter with your unit.
Before going through the checklist below, check the connection and operating procedures.
General