Sony CDX-4250 - Fm/am Compact Disc Changer System Manual de usuario

Operating Instructions

1999 by Sony Corporation

FM/AM

Compact Disc

Player

CDX-4250

For installation and connections, 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)

Welcome !

Thank you for purchasing the Sony Compact

Disc Player. This unit lets you enjoy a variety

of features.

Warning

This equipment has been tested and found to

comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules.

These limits are designed to provide

reasonable protection against harmful

interference in a residential installation. This

equipment generates, uses, and can radiate

radio frequency energy and, if not installed

and used in accordance with the instructions,

may cause harmful interference to radio

communications. However, there is no

guarantee that 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 receiver.

— Connect the equipment into an outlet on a

circuit different from that to which the

receiver is connected.

— Consult the dealer or an experienced radio/

TV technician for help.

You are cautioned that any changes or

modifications not expressly approved in this

manual could void your authority to operate

this equipment.

CAUTION

The use of optical instruments with this

product will increase eye hazard.

Location of controls ................................................. 4

Getting Started

Resetting the unit ................................................ 5

Detaching the front panel .................................. 5

Setting the clock .................................................. 6

CD Player

Listening to a CD ................................................ 6

Playing a CD in various modes ........................ 7

Radio

Memorizing stations 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

Location of controls

Refer to the pages for details.

1SEEK/AMS (seek/Automatic Music

Sensor/manual search) control 7, 8

2MODE (band select) button 7, 8

3SOURCE (source select) button 6, 7, 8

4Dial (volume/bass/treble/left-right/

front-rear control) 6, 9

5SOUND button 6, 9

6Display window

7SENS/BTM (sensitivity adjust/Best

Tuning Memory) button 7, 8

86(eject) button 6

9DSPL (display mode change/time set)

button 6, 8

0RELEASE (front panel release) button 5,

!¡ 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

SOUND

OFF

123456

D - BASS

MODE

SHUF

SOURCE

OFF

123

CDX-4250

SENS DSPL

BTM

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 panel and press the reset

button with a pointed object, such as a ball-

point pen.

Reset button

(OFF)

(RELEASE)

Notes

•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.

Detaching the front panel

You can detach the front panel of this unit to

protect the unit from being stolen.

1Press (OFF).

2Press (RELEASE), then slide the front

panel a little to the left, and pull it off

towards you.

Notes

• Be sure 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.

Notes

• 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.

Attaching the front panel

Attach part aof the front panel to part bof

the unit as illustrated, and push the left side

into position until it clicks into position.

Setting the clock

The clock has a 12-hour digital indication.

Example: To set the clock to 10:08

1Press (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 9).

2Press (DSPL) for two seconds.

The hour indication flashes.

1Set the hour.

2Press (SOUND).

The minute indication flashes.

3Set the minute.

3Press (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.

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 adapter (CSA-8).

To Press

Stop playback 6or (OFF)

Eject the CD 6

Changing the display item

Each time you press (DSPL) during CD

playback, the item changes as follows:

zElapsed playing time zTrack number

MOTION DISPLAY*ZClock Z

*All the above items are scrolled in the display

one by one in order.

SOURCE

To locate succeeding

tracks

To locate preceding

tracks

”FM I ” FM II ”FM III ”AM

To search backward

To search forward

Radio

Memorizing stations

automatically

— 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).

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 mode

changes as follows:

CD ˜TUNER

2Press (MODE) repeatedly to select the

band.

Each time you press (MODE), the band

changes as follows:

3Press (SENS/BTM) for two seconds.

The unit stores stations in the order of their

frequencies on the number buttons.

A beep sounds when the setting is stoned.

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).

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 skip.

Locating a specific point in a track

— Manual Search

During playback, push the SEEK/AMS

control up or down and hold for about

two seconds. Release when you have

found the desired point.

Note

If “ ” or “ ” appears in the

display, you have reached the beginning or the

end of the disc and you cannot go any further.

Playing a CD in various

modes

Playing tracks repeatedly

— Repeat Play

Press (1) during playback.

“REP” appears in the display.

When the current track is over, it will play

again from the beginning.

To return to normal playback mode, press

again.

Playing tracks in random order

— Shuffle Play

Press (2) during playback.

“SHUF” appears in the display.

To return to normal playback mode, press

again.

SEEK/AMS

Memorizing only the

desired stations

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.

1Press (SOURCE) repeatedly to select the

tuner.

2Press (MODE) repeatedly to select the

band.

3Push the SEEK/AMS control up or down

to tune in the station that you want to

store on the number button.

4Press and hold the desired number

button ((1) to (6)) 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 memorized

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.

If you 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

relatively strong signals will be tuned in.

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).

If FM stereo reception is poor

— Monaural Mode

Press (SENS/BTM) repeatedly until

“MONO” appears.

The sound improves, but becomes

monaural (“ST” disappears).

To return to normal mode, press again until

“MONO” disappears.

Changing the display item

Each time you press (DSPL), the item changes

as follows:

zFrequency zClock

MOTION DISPLAY*Z

*All the above items are scrolled in the display

one by one in order.

Other Functions

Adjusting the sound

characteristics

You can adjust the bass, treble, balance, and

fader. You can store the bass and treble levels.

1Select the item you want to adjust by

pressing (SOUND) repeatedly.

BAS (bass) nTRE (treble) n

BAL (left-right) nFAD (front-rear) n

VOL (volume)

2Adjust the selected item by rotating the

dial.

Adjust within three seconds after selecting

the item. (After three seconds, the dial

function reverts to volume control.)

Turning on the clock

display — Power Select Function

Only for cars with an accessory position on the

ignition key switch

To turn the Power Select Function ON

Press (OFF) while pressing (SOUND).

The Power Select Function ties the clock

display power to the accessory position on

the ignition key switch.

To avoid battery wear, the clock is not

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 the D-BASS control. This is similar

in effect to an optional subwoofer system.

Level

Frequency (Hz)

Adjusting the bass curve

Turn the D-BASS control to adjust the

bass level (1, 2, or 3).

“D-BASS” appears in the display.

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).

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.

0dB

D-BASS 3

D-BASS 2

D-BASS 1

Additional

Information

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 no sound comes from the speakers of a

two-speaker system, set the fader control to

the center position.

•If your car is equipped with a power

antenna, 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.

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.

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. 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 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.

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