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12

Specifications

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION
17 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

System

Compact disc digital audio
system

Signal-to-noise ratio

90 dB

Frequency response

10 – 20,000 Hz

Wow and flutter

Below measurable limit

Laser Diode Properties

Material

GaAlAs

Wavelength

780 nm

Emission Duration

Continuous

Laser output power

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.

Tuner section

FM

Tuning range

87.5 – 107.9 MHz

Antenna terminal

External antenna connector

Intermediate frequency

10.7 MHz

Usable sensitivity

9 dBf

Selectivity

75 dB at 400 kHz

Signal-to-noise ratio

65 dB (stereo),
68 dB (mono)

Harmonic distortion at 1 kHz

1.0 % (stereo),
0.7 % (mono)

Separation

35 dB at 1 kHz

Frequency response

30 – 15,000 Hz

AM

Tuning range

530 – 1,710 kHz

Antenna terminal

External antenna connector

Intermediate frequency

10.71 MHz/450 kHz

Sensitivity

30 µV

Power amplifier section

Outputs

Speaker outputs
(sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output 40 W 

×

 4 (at 4 ohms)

General

Outputs

Power antenna relay
control
Telephone ATT control
lead

Tone controls

Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz

Power requirements

12 V DC car battery
(negative ground)

Dimensions

Approx. 178 

×

 50 

×

 185 mm

(7 

1

/

8

 

×

 2 

×

 7 

3

/

 in.)

(w/h/d)

Mounting dimensions

Approx. 182 

×

 53 

×

 162 mm

(7 

1

/

4

 

×

 2 

1

/

8

 

×

 6 

1

/

2

 in.)

(w/h/d)

Mass

Approx. 1.2 kg (2 lb. 10 oz.)

Supplied accessories

Parts for installation and
connections (1 set)
Front panel case (1)

Optional accessories

Cleaning cloth XP-CD1
Compact disc single
adapter CSA-8

Design and specifications are subject to change
without notice.

Summary of Contents for CDX-4250 - Fm/am Compact Disc Changer System

Page 1: ...ons see the supplied installation connections manual 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 4250 Serial No 3 865 649 11 1 ...

Page 2: ... interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receive...

Page 3: ...ns automatically Best Tuning Memory BTM 7 Memorizing only the desired stations 8 Receiving the memorized stations 8 Other Functions Adjusting the sound characteristics 9 Turning on the clock display Power Select Function 9 Changing the sound and beep sound 9 Table of Contents Additional Information Precautions 10 Maintenance 11 Dismounting the unit 11 Specifications 12 Troubleshooting guide 13 ...

Page 4: ...ndow 7 SENS BTM sensitivity adjust Best Tuning Memory button 7 8 8 6 eject button 6 9 DSPL display mode change time set button 6 8 0 RELEASE front panel release button 5 11 Reset button located on the front side of the unit behind the front panel 5 OFF button 5 6 9 During radio reception Number buttons 8 During CD playback 1 REPEAT button 7 2 SHUF button 7 D BASS control 9 RELEASE REPEAT SEEK AMS ...

Page 5: ...e 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 Cauti...

Page 6: ...on Set the clock after you have turned on the radio or started CD playback Elapsed playing time To go forward To go backward To go forward To go backward Label side up CD Player Listening to a CD Insert a CD Playback starts automatically If a CD is already inserted press SOURCE repeatedly until CD appears to start playback Note To play back an 8 cm 3 in CD use the optional Sony compact disc single...

Page 7: ...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 Locating a specific track Automatic Music Sensor AMS During playback push the SEEK AMS control up or down and release for each track you want to sk...

Page 8: ...ou cannot tune in a preset station 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 Note If the automatic tuning stops too frequently press SENS BTM repeatedly until LCL local seek mode is displayed Only the stations with r...

Page 9: ... displayed while the unit is initializing Changing the sound and beep sound Boosting the bass sound D bass You can enjoy a clear and powerful bass sound 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 t...

Page 10: ...timum sound handle the disc by its edge To keep the disc clean do not touch the surface Do not stick paper or tape on the labeled surface 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 ...

Page 11: ...rest Sony dealer Warning Never use a fuse with an amperage rating exceeding the one supplied with the unit as this could damage the unit 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 RELEASE then detach it and clean the connectors with a cotton swab dipped in ...

Page 12: ...Selectivity 75 dB at 400 kHz Signal to noise ratio 65 dB stereo 68 dB mono Harmonic distortion at 1 kHz 1 0 stereo 0 7 mono Separation 35 dB at 1 kHz Frequency response 30 15 000 Hz AM Tuning range 530 1 710 kHz Antenna terminal External antenna connector Intermediate frequency 10 71 MHz 450 kHz Sensitivity 30 µV Power amplifier section Outputs Speaker outputs sure seal connectors Speaker impedanc...

Page 13: ...emperature exceeds 50 C 122 F Press the 6 button for two seconds 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 Problem CD cannot be loaded Play does not begin CD is automatically ejected CD will not eject The operation buttons do not function The sound skips due to vibration CD playback Problem Preset tuning is not po...

Page 14: ...r 6 Cause A CD is dirty or inserted upside down 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 Error displays The following indications will flash for about five seconds ...

Page 15: ...15 ...

Page 16: ...Sony Corporation Printed in Korea ...

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