3-865-652-11 (1)
FM/AM
Compact Disc
Player
US
Operating Instructions
Owner’s Record
The model and serial numbers are located on the bottom of the unit.
Record the serial number in the space provided below.
Refer to these numbers whenever you call upon your Sony dealer regarding this
product.
Model No. CDX-2250 Serial No.
For installation and connections, see the supplied installation/connections
manual.
CDX-2250
1999 by Sony Corporation
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Table of Contents
Location of controls ................................................. 4
Additional Information
Precautions ........................................................... 9
Maintenance....................................................... 10
Dismounting the unit ....................................... 11
Specifications ..................................................... 12
Troubleshooting guide ..................................... 13
Getting Started
Resetting the unit ................................................ 5
Setting the clock .................................................. 5
CD Player
Listening to a CD ................................................ 6
Playing a CD in various modes ........................ 6
Radio
Memorizing stations automatically
— Best Tuning Memory (BTM) ................... 7
Memorizing only the desired stations ............. 7
Receiving the memorized stations.................... 7
Other Functions
Adjusting the sound characteristics ................. 8
Turning on the clock display
— Power Select Function .............................. 8
Changing the sound and beep sound .............. 9
3
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Location of controls
MODE
BTM
SOUND
SEEK/AMS
SENS
DSPL
1
OFF
2
3
D - BASS
SOURCE
REPEAT
SHUF
1
2
3
4
5
6
OFF
CDX-2250
Refer to the pages for details.
1 SEEK/AMS (seek/Automatic Music
0 Reset button 5
Sensor/manual search) control 6, 8
!¡ OFF button 6, 8
2 MODE (band select) button 7
!™ During radio reception:
3 SOURCE (source select) button 6, 7
Number buttons 7
4 Dial (volume/bass/treble/left-right/
During CD playback:
(1) REPEAT button 6
(2) SHUF button 6
front-rear control) 5, 8
5 SOUND button 5, 8, 9
6 Display window
!£ D-BASS control 9
7 SENS/BTM (sensitivity adjust/Best
Tuning Memory) button 7, 8
8 6 (eject) button 6
9 DSPL (display mode change/time set)
button 5, 6, 8
4
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Setting the clock
The clock has a 12-hour digital indication.
Getting Started
Example: To set the clock to 10:08
1 Press (DSPL) during operation.
If the POWER SELECT function is set to
“ON,” go to step 2. If it is set to “OFF,” set
to “ON” (page 8).
Resetting the unit
Before operating the unit for the first time or
after replacing the car battery, you must reset
the unit.
Press the reset button with a pointed object,
such as a ball-point pen.
2 Press (DSPL) for two seconds.
The hour indication flashes.
1 Set the hour.
Reset button
To go backward
SOURCE
Notes
To go forward
• Pressing the reset button will erase the clock
setting and some memorized program and
memory functions.
• When you connect the power supply cord to the
unit or reset the unit, wait for about 10 seconds
before you insert a disc. If you insert a disc within
these 10 seconds, the unit will not be reset, and
you will have to press the reset button again.
2 Press (SOUND).
The minute indication flashes.
3 Set the minute.
To go backward
SOURCE
To go forward
3 Press (DSPL).
The clock starts.
Note
If the car has no accessory position on the ignition
key switch, the clock cannot be set unless the
power is turned on. Set the clock after you have
turned on the radio, or started CD playback.
5
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Locating a specific track
— Automatic Music Sensor (AMS)
CD Player
During playback, push the SEEK/AMS
control up or down and release for each
track you want to skip.
SEEK/AMS
To locate succeeding
tracks
Listening to a CD
To locate preceding
tracks
Insert a CD.
Playback starts automatically.
Locating a specific point in a track
— Manual Search
Label side up
During playback, push the SEEK/AMS
control up or down and hold for about
two seconds. Release when you have
found the desired point.
SEEK/AMS
To search forward
To search backward
If a CD is already inserted, press (SOURCE)
repeatedly until “CD” appears to start
playback.
If “
” or “
” appears in the
display, you have reached the beginning or the
end of the disc and you cannot go any further.
Elapsed playing time
To play back an 8 cm (3 in.) CD, use the optional
Sony compact disc single adapter (CSA-8).
Playing a CD in various
modes
To
Press
Playing tracks repeatedly
— Repeat Play
Stop playback
Eject the CD
6 or (OFF)
6
Press (1) during playback.
“REP” appears in the display.
Changing the display item
Each time you press (DSPL) during CD
When the current track is over, it will play
again from the beginning.
playback, the item changes as follows:
z Elapsed playing time
z Track number
Clock Z
To return to normal playback mode, press
again.
MOTION DISPLAY* Z
* All the above items are scrolled in the display
one by one in order.
Playing tracks in random order
— Shuffle Play
Press (2) during playback.
“SHUF” appears in the display.
To return to normal playback mode, press
again.
6
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Memorizing only the
desired stations
Radio
You can store up to 6 stations on each band (a
total of 18 for FM I, FM II, and FM III, and 6 for
AM) in the order of your choice.
Memorizing stations
automatically
1 Press (SOURCE) repeatedly to select the
tuner.
— Best Tuning Memory (BTM)
This unit selects the stations with the strongest
signals and memorizes them in the order of
their frequencies. You can store up to 6 stations
on each band (FM I, FM II, FM III, and AM).
2 Press (MODE) repeatedly to select the
band.
3 Push the SEEK/AMS control up or down
to tune in the station that you want to
store on the number button.
Caution
When tuning in stations while driving, use
Best Tuning Memory to prevent accidents.
4 Press and hold the desired number
button ((1) to (6)) until “MEM” appears.
The number button indication appears in
the display.
1 Press (SOURCE) repeatedly to select the
tuner.
Each time you press (SOURCE), the mode
changes as follows:
CD ˜ TUNER
Note
If you try to store another station on the same
number button, the previously stored station will
be erased.
2 Press (MODE) repeatedly to select the
band.
Each time you press (MODE), the band
changes as follows:
Receiving the memorized
stations
”FM I ”FM II ”FM III ”AM
3 Press (SENS/BTM) for two seconds.
The unit stores stations in the order of their
frequencies on the number buttons.
1 Press (SOURCE) repeatedly to select the
tuner.
A beep sounds when the setting is stored.
2 Press (MODE) repeatedly to select the
band.
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.
3 Press the number button ((1) to (6)) on
which the desired station is stored.
• When a number is indicated in the display, the
unit starts storing stations from the one currently
displayed.
continue to next page n
• If a CD is not in the unit, only the tuner band
appears even if you press (SOURCE).
7
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If you cannot tune in a preset
station
Other Functions
Push and release the SEEK/AMS control
up or down to search for the station
(automatic tuning).
Scanning stops when the unit receives a
station. Push the SEEK/AMS control up or
down repeatedly until the desired station is
received.
Adjusting the sound
characteristics
You can adjust the bass, treble, balance, and
fader. You can store the bass and treble levels.
Note
If the automatic tuning stops too frequently, press
(SENS/BTM) repeatedly until “LCL” (local seek
mode) is displayed. Only the stations with
relatively strong signals will be tuned in.
1 Select the item you want to adjust by
pressing (SOUND) repeatedly.
Tip
If you know the frequency of the station you want
to listen to, push the SEEK/AMS control up or
down and hold until the desired frequency
appears (manual tuning).
BAS (bass) n TRE (treble) n BAL (left-
right) n FAD (front-rear) n VOL (volume)
2 Adjust the selected item by rotating the
dial.
If FM stereo reception is poor
— Monaural Mode
Adjust within three seconds after selecting
the item. (After three seconds, the dial
function reverts to volume control.)
Press (SENS/BTM) repeatedly until
“MONO” appears.
The sound improves, but becomes
monaural (“ST” disappears).
Turning on the clock
display — Power Select Function
Only for cars with an accessory position on the
ignition key switch
To return to normal mode, press again until
“MONO” disappears.
Changing the display item
Each time you press (DSPL), the item changes
as follows:
To turn the Power Select Function ON
zFrequency
zClock
Press (OFF) while pressing (SOUND).
The Power Select Function ties the clock
display power to the accessory position on
the ignition key switch.
MOTION DISPLAY* Z
* All the above items are scrolled in the display
one by one in order.
To avoid battery wear, the clock is not
displayed while the unit is initializing.
8
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Additional
Information
Changing the sound and
beep sound
Boosting the bass sound — D-bass
You can enjoy a clear and powerful bass
sound.
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.
The D-bass function boosts the low frequency
signal with a sharper curve than conventional
bass boost.
You can hear the bass line more clearly even
while the vocal remains at the same volume.
You can emphasize and adjust the bass sound
easily with the D-BASS control. This is similar
in effect to an optional subwoofer system.
• If no sound comes from the speakers of a
two-speaker system, set the fader control to
the center position.
D-BASS 3
D-BASS 2
D-BASS 1
•If your car is equipped with a power
antenna, it will extend automatically while
the unit is operating.
0dB
Frequency (Hz)
If you have any questions or problems
concerning your unit that are not covered in
this manual, please consult your nearest Sony
dealer.
Adjusting the bass curve
Turn the D-BASS control to adjust the
bass level (1, 2, or 3).
“D-BASS” appears in the display.
Notes on handling CDs
A dirty or defective disc may cause sound
dropouts while playing. To enjoy optimum
sound, handle the disc by its edge. To keep the
disc clean, do not touch the surface.
To cancel, turn the control to OFF.
Note
If the bass sound becomes distorted, adjust the
D-BASS control or volume.
Cancel the beep sound
Press (6) while pressing (SOUND).
Do not stick paper or tape on the labeled
surface.
To obtain the beep sound again, press these
buttons again.
Note
If you connect an optional power amplifier and do
not use the built-in amplifier, the beep sound will
be deactivated.
continue to next page n
9
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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.
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.
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.
Fuse (10 A)
Warning
Never use a fuse with an amperage rating
exceeding the one supplied with the unit as
this could damage the unit.
Notes on moisture condensation
On a rainy day or in a very damp area,
moisture may condense on the lenses inside
the CD player. Should this occur, the unit will
not operate properly. In this case, remove the
disc and wait for about an hour until the
moisture evaporates.
When you play 8 cm (3 in.) CDs
Use the optional Sony compact disc single
adapter (CSA-8) to protect the CD player from
damage.
10
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2 Insert a flathead screwdriver between
the bracket and mounting spring. Gently
pry the spring toward the unit while
pulling the unit out a little. Repeat on
the opposite side and remove the unit.
Dismounting the unit
1 Insert the supplied tool between the unit
and the frame, and rotate 90° to release
the hidden mounting spring. Repeat on
the opposite side and remove the frame.
10 mm (13/32 in.)
4 mm (3/16 in.)
90°
11
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Specifications
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
14 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 1 % total harmonic distortion.
Other specifications
CD player section
General
Outputs
System
Compact disc digital audio
system
Power antenna relay
control
Telephone ATT control
lead
Signal-to-noise ratio
Frequency response
Wow and flutter
Laser Diode Properties
Material
90 dB
10 – 20,000 Hz
Below measurable limit
Tone controls
Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz
12 V DC car battery
(negative ground)
Approx.178×50×185mm
(7 1/8 × 2 × 7 3/8 in.)
(w/h/d)
Approx. 182 × 53 × 162 mm
(7 1/4 × 2 1/8 × 6 1/2 in.)
(w/h/d)
Approx. 1.2 kg (2 lb. 10 oz.)
Parts for installation and
connections (1 set)
Cleaning cloth XP-CD1
Compact disc single
adapter CSA-8
GaAlAs
780 nm
Power requirements
Dimensions
Wavelength
Emission Duration
Laser output power
Continuous
Less than 44.6 µW*
* This output is the value measured at a distance
of 200 mm from the objective lens surface on
the Optical Pick-up Block.
Mounting dimensions
Mass
Supplied accessories
Tuner section
FM
Optional accessories
Tuning range
87.5 – 107.9 MHz
Antenna terminal
Intermediate frequency 10.7 MHz
Usable sensitivity
Selectivity
Signal-to-noise ratio
External antenna connector
9 dBf
75 dB at 400 kHz
65 dB (stereo),
68 dB (mono)
Design and specifications are subject to change
without notice.
Harmonic distortion at 1 kHz
1.0 % (stereo),
0.7 % (mono)
35 dB at 1 kHz
30 – 15,000 Hz
Separation
Frequency response
AM
Tuning range
Antenna terminal
530 – 1,710 kHz
External antenna connector
Intermediate frequency 10.71 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
4 – 8 ohms
Speaker impedance
Maximum power output 35 W × 4 (at 4 ohms)
12
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Troubleshooting guide
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
Cause/Solution
Problem
•Rotate the dial in a clockwise direction to adjust the volume.
•Set the fader control to the center position for two-speaker
systems.
No sound.
• The power cord or battery has been disconnected.
• The reset button has been pressed.
n Store the settings again into the memory.
The contents of the memory
have been erased.
• An optional power amplifier is connected and you are not
using the built-in amplifier.
• The beep sound is cancelled (page 9).
No beep sound.
CD playback
Problem
Cause/Solution
CD cannot be loaded.
• Another CD is already loaded.
• The CD was forcibly inserted upside down.
Play does not begin.
CD is automatically ejected.
CD will not eject.
Dirty disc.
The ambient temperature exceeds 50°C (122°F).
Press the 6 button for two seconds.
Press the reset button.
The operation buttons do not
function.
The sound skips due to
vibration.
• The unit is installed at an angle of more than 60°.
• The unit is not installed in a sturdy part of the car.
Radio reception
Problem
Cause/Solution
Preset tuning is not possible.
• Memorise the correct frequency.
• The broadcast signal is too weak.
Automatic tuning is not
possible.
The broadcast signal is too weak.
n Use manual tuning.
The “ST” indication flashes.
•Tune in the frequency accurately.
•The broadcast signal is too weak.
n Set to the MONO mode (page 8).
continue to next page n
13
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Error displays
The following indications will flash for about five seconds.
Solution
Display
Cause
Clean or insert the CD correctly.
A CD is dirty or inserted upside
down.
Press the reset button or 6.
The CD player cannot be operated
because of some problem.
If the above-mentioned solutions do not help improve the situation, consult your nearest Sony
dealer.
14
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Sony Corporation Printed in Korea
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