Sony XR-4790 Bruksanvisning

 1998 by Sony Corporation

3-861-514-11 (1)

Operating Instructions

Manual de instrucciones

Bruksanvisning

Manual de instruções

ES

S

P

EN

FM/MW/LW

Cassette Car

Stereo

XR-4790

For installation and connections, see the supplied installation/connections

manual.

Con respecto a la instalación y las conexiones, consulte el manual de Instalación/

conexiones suministrado.

Vi hänvisar till det medföljande häftet angående montering/anslutningar.

Para a instalação e as ligações, consulte o manual de instalação/ligações

fornecido.

2

EN

Welcome!

Thank you for purchasing the Sony Cassette

Car Stereo. This unit lets you enjoy a variety of

features by using an optional rotary

commander.

3

EN

Additional Information

Precautions ........................................................... 9

Maintenance ....................................................... 10

Dismounting the unit ....................................... 10

The rotary commander labels ......................... 11

Location of controls .......................................... 12

Specifications ..................................................... 13

Troubleshooting guide ..................................... 14

Index ................................................................... 15

Table of contents

Getting Started

Resetting the unit ................................................ 4

Detaching the front panel .................................. 4

Setting the clock .................................................. 5

Cassette Player

Listening to a tape ............................................... 5

Radio

Memorising stations automatically

— Best Tuning Memory (BTM) ................... 6

Memorising only the desired stations.............. 7

Receiving the Memorised stations.................... 7

Other Functions

Adjusting the sound characteristics ................. 8

Attenuating the sound ....................................... 8

Changing the sound and beep tone ................. 8

4

EN

Attaching the front panel

Attach part A of the front panel to part B of

the unit as illustrated and push until it clicks.

Notes

• Make sure the front panel is right side up when attaching

it to the unit as it cannot be attached upside down.

• Do not press the front panel too hard when attaching it

to the unit. It can easily be attached by pressing it lightly

against the unit.

• When you carry the front panel with you, keep it in the

supplied front panel case.

• Do not press hard or put excessive pressure on the

display windows of the front panel.

• Do not expose the front panel to direct sunlight, heat

sources such as hot air ducts or leave it in a humid place.

Never leave it on the dashboard etc. of a car parked in

direct sunlight where there may be a considerable rise in

temperature inside the car.

Caution alarm

If you turn the ignition key to the OFF position

without removing the front panel, the caution

alarm will beep for a few seconds (only when

the POWER SELECT switch is set to the A

position).

Getting Started

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 ballpoint pen.

Note

Pressing the reset button will erase all the Memorised

programme and memory functions.

Detaching the front panel

The front panel of this unit can be detached to

prevent the unit from being stolen.

1 Press (OFF).

2 Press (RELEASE) to detach the front

panel then gently pull it out.

Notes

• Be sure not to drop the panel when detaching it from the

unit.

• If you press (RELEASE) to detach the panel while the

unit is still turned on, the power will automatically turn

off to protect the speakers from being damaged.

B

A

Reset button

(RELEASE)

5

EN

Setting the clock

The clock has a 24-hour digital indication.

For example, setting it to 10:08

1 Press (OFF) or (DSPL) during operation.

2 Press (DSPL) for two seconds.

1 Set the hour digits.

2 Press (SEL) momentarily.

3 Set the minute digits.

3 Press (DSPL) momentarily.

Note

If the POWER SELECT switch on the top of the unit is set

to the B position, the clock cannot be set unless the power

is turned on. Set the clock after you have turned on the

radio.

The hour digit flashes.

To go

backward

To go

forward

The minute digits flashes.

The clock starts.

Getting Started/Cassette Player

Cassette Player

Listening to a tape

Insert a cassette.

Playback will start automatically.

If a cassette is already inserted, press

(SOURCE) repeatedly until “TAPE” is

displayed.

The side facing up is being played.

The side facing down is being played.

Tip

To change the tape transport direction, press (MODE)

(*) during tape playback.

Fast-winding the tape

During playback, press either side of

(SEEK/AMS) for two seconds.

To start playback during fast-forwarding or

rewinding, press (MODE) (*).

Press

(OFF)

6

To

Stop playback

Eject the cassette

Fast-forwardRewind

To go

backward

To go

forward

SEEK

AMS



100



1000



1000



1008



1008

TAPE



TAPE



6

EN

To locate the

succeeding tracks

To locate the

preceding tracks

Radio

Memorising stations

automatically

— Best Tuning Memory (BTM)

This function selects from the currently

received band the stations with the strongest

signals and Memorises them in order of their

frequency.

PREVENTING ACCIDENTS!

When tuning in while driving, use the

automatic tuning or memory preset search

function instead of manual tuning.

1 Press (SOURCE) repeatedly to select the

tuner.

Each time you press (SOURCE), the source

changes as follows:

TAPE ˜ TUNER

2 Press (MODE) repeatedly to select the

band.

Each time you press (MODE), the band

changes as follows:

FM1 n FM2 n FM3 n MW n LW

3 Press (BTM) for two seconds.

Notes

• The unit will not store stations with weak signals on the

preset number buttons. If there are only a few stations

received, some preset number buttons will remain empty.

• When a preset number indicated on the display, the unit

starts storing station from the one currently display.

Locating the beginning of a track

— Automatic Music Sensor (AMS)

You can skip up to nine tracks at one time.

During playback, press either side of

(SEEK/AMS) momentarily.

Note

The AMS function may not work when :

• the blanks between tracks are shorter than 4 seconds

• there is noise between tracks

• there are long sections of low volume or quiet sections.

Changing the displayed items

Each time you press (DSPL) momentarilly

during tape playback, the displayed item

changes as follows:

z Tape playback z Clock z Frequency*

* While the ATA function is activated.

Switching to the radio while fast-

winding a tape

— Automatic Tuner Activation (ATA)

Press (5) during playback.

“ATA” appears on the display.

When fast-forwarding or rewinding with

(SEEK/AMS) for two seconds, the tuner will

turn on automatically.

To cancel this function, press (5) again.

SEEK

AMS

7

EN

Cassette Player/Radio

Memorising only the

desired stations

Up to 6 stations on each band (FM1, FM2, FM3,

MW and LW) can be stored on the preset

number buttons in the order of your choice.

Therefore, 18 FM stations can be Memorised.

If you try to store another station on the same

preset number button, the most recently stored

station will be erased.

1 Press (SOURCE) repeatedly to select the

tuner.

2 Press (MODE) repeatedly to select the

band.

3 Press (SEEK/AMS) to search for the

station you wish to store on a preset

number button.

4 Press the desired preset number button

((1) to (6)) for two seconds.

The number of the selected preset number

button appears on the display.

Receiving the Memorised

stations

1 Press (SOURCE) repeatedly to select the

tuner.

2 Press (MODE) repeatedly to select the

band.

3 Press the preset number button

momentarily ((1) to (6)) on which the

desired station is stored.

Tip

Press either side of (PRST) to receive in order the stations

stored in the memory (Preset Search Function).

Changing the displayed items

Each time you press (DSPL), the display

changes between the frequency and the clock.

If you cannot tune in a preset

station

Press either side of (SEEK/AMS)

momentarily to search for the station

(automatic tuning).

Scanning stops when a station is received.

Press either side of (SEEK/AMS) repeatedly

until the desired station is received.

Note

If the automatic tuning stops too frequently, press

(LCL) to light up “LCL” on the display (local seek mode).

Only the stations with relatively strong signals are tuned

in.

Tip

If you know the frequency, press and hold either side of

(SEEK/AMS) until the desired station is received (manual

tuning).

8

EN

Other Functions

Adjusting the sound

characteristics

1 Select the item you want to adjust by

pressing (SEL) repeatedly.

VOL (volume) n BAS (bass) n TRE

(treble) n BAL (left-right) n FAD

(front-rear)

2 Adjust the selected item by pressing

either (+) or (–).

Adjust within three seconds after selecting.

(After three seconds the button will again

serve as the volume control button.)

Attenuating the sound

Press (ATT).

The “ATT” indication flashes.

To restore the previous volume level, press

again.

Changing the sound and

beep tone

Boosting the bass sound — D-Bass

To enjoy clear and powerful bass sound, you

can boost only the low frequency signal with a

sharp curve. This is the effect you get when

use an optional subwoofer system.

For example, you can hear the bass line more

clearly even if the vocal volume remains the

same. You can emphasize and adjust the bass

sound easily with the D-BASS control.

Analog D-BASS

Level

Frequency (Hz)

0dB

D-BASS 3

D-BASS 2

D-BASS 1

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 the OFF position.

Note

If the bass sound becomes distorted, adjust the D-BASS

control or the volume button.

Attenuating the beep tone

Press (6) while pressing (SEL).

To obtain the beep tone again, press these

buttons again.

9

EN

Other Functions/Additional Information

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

2-speaker system, set the fader control to the

center position.

• When the tape is played back for a long

period, the cassette may become warm

because of the built-in power amplifier.

However, this is not a sign of malfunction.

If you have any questions or problems

concerning your unit that are not covered in

this manual, please consult your nearest Sony

dealer.

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 car audio. Sugary

residues on this unit or cassette tapes may

contaminate the playback heads, reduce the

sound quality, or prevent sound reproduction

altogether.

Cassette cleaning kits cannot remove sugar

from the tape heads.

Notes on Cassettes

Cassette care

• Do not touch the tape surface of a cassette, as

any dirt or dust will contaminate the heads.

• Keep cassettes away from equipment with

built-in magnets such as speakers and

amplifiers, as erasure or distortion on the

recorded tape could occur.

• Do not expose cassettes to direct sunlight,

extremely cold temperatures or moisture.

• Slack in the tape may cause the tape to be

caught in the machine. Before you insert the

tape, use a pencil or similar object to turn the

reel and take up any slack.

• Distorted cassettes and loose labels can cause

problems when inserting or ejecting tapes.

Remove or replace loose labels.

Cassettes longer than 90 minutes

The use of cassettes longer than 90 minutes is

not recommended except for long continuous

play. The tapes used for these cassettes are

very thin and tend to be stretched easily.

Frequent playing and stopping of these tapes

may cause them to be pulled into the cassette

deck mechanism.

Slack

10

EN

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.

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 alcohol. Do not apply

too much force. Otherwise, the connectors may

be damaged.

Fuse (10 A)

Main unit

Back of the front panel

Dismounting the unit

1

2

3

4

Release key (supplied)

11

EN

Additional Information

The rotary commander

labels

You can control this unit with the optional

rotary commander (RM-X4S).

Some labels are supplied with the rotary

commander. Attach that label which matches

the functions of the master unit and the

mounting position of the rotary commander.

When you mount the rotary commander,

attach the appropriate label, as in the

illustration below.

SEL

DSPL

MODE

SEL

DSPL

MODE

12

EN

Location of controls

Refer to the pages for further details.

1 SEL (control mode select) button 5, 8

2 SOURCE button (TAPE/TUNER) 5, 6, 7

3 MODE (*) button

During tuner reception:

BAND select 6, 7

During tape playback:

Transport direction change 5

4 POWER SELECT switch (located on the

top of the unit)

See “POWER SELECT Switch” in the

Installation/Connections manual.

5 OFF button 4, 5

6 SEEK/AMS button 5, 6, 7

7 6 (Eject) button 5

8 DSPL (display mode change/time set)

button 5, 6, 7

9 During radio reception:

Preset number buttons 7

During tape playback:

(5) ATA (Automatic Tuner

Activation) button 6

!º (+)(–) (volume/bass/treble/left-right/

front-rear control) button 5, 8

!¡ RELEASE (front panel release) button

4, 10

!™ Reset button (located on the front side

of the unit hidden by the front panel)

Press this button when you use this unit

for the first time, when you have changed

the car battery, or when the buttons of this

unit do not function properly.

!£ ATT button 8

!¢ BTM (Best tuning memory) button 6

!∞ Display window

!§ LCL button 7

!¶ PRST button 7

!• D-BASS control 8

RELEASE

MODE

SEEK

AMS

SEL

SOURCE

OFF

ATT

BTM

OFF

1

2

3

231

564

D-BASS

PRST

DSPL

ATA

LCL

13

EN

Specifications

Cassette player section

Tape track 4-track 2-channel stereo

Wow and flutter 0.08 % (WRMS)

Frequency response 30 – 18,000 Hz

Signal-to-noise ratio 58 dB

Tuner section

FM

Tuning range 87.5 – 108.0 MHz

Antenna terminal External antenna connector

Intermediate frequency 10.7 MHz

Usable sensitivity 8 dBf

Selectivity 75 dB at 400 kHz

Signal-to-noise ratio 65 dB (stereo),

68 dB (mono)

Harmonic distortion at 1 kHz

0.5 % (stereo),

0.3 % (mono)

Separation 35 dB at 1 kHz

Frequency response 30 – 15,000 Hz

Capture ratio 2 dB

MW/LW

Tuning range MW: 531 – 1,602 kHz

LW: 153 – 281 kHz

Antenna terminal External antenna connector

Intermediate frequency 10.71 MHz/450kHz

Sensitivity MW: 30 µV

LW: 50 µV

Power amplifier section

Outputs Speaker outputs

(sure seal connectors)

Speaker impedance 4 – 8 ohms

Maximum power output 35 W × 4 (at 4 ohms)

General

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. 188 × 58 × 181

mm (w/h/d)

Mounting dimensions Approx. 182 × 53 × 164 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.

Additional Information

14

EN

Troubleshooting guide

The following checklist will assist in the correction of most problems you may encounter with your

unit.

Before going through the checklist below, refer to the operating procedures.

General

Cause/Solution

• Adjust the volume with (+).

• Set the fader control to the center position for 2-speaker

systems.

Remove the front panel and clean the connectors. See “Cleaning

the Connectors” in “Maintenance” for details.

The beep tone is attenuated.

Problem

No sound.

Indications do not appear on

the display.

No beep tone.

Tape playback

Cause/Solution

Contamination of the tape head. n Clean the head.

• There is noise in the space between tracks.

• A blank space is too short (less than four seconds).

• + on (SEEK/AMS) is pressed immediately before the

following track.

• = on (SEEK/AMS) is pressed immediately after the track

starts.

• A long pause, or a passage of low frequencies or very low

sound level is treated as a blank space.

Problem

Playback sound is distorted.

The AMS does not operate

correctly.

Radio reception

Problem

Preset tuning is not possible.

Automatic tuning is not possible.

Cause/Solution

• Store the correct frequency.

• The broadcast is too weak.

The broadcast is too weak. n Use manual tuning.

If the above-mentioned solutions do not help to improve the situation, consult your nearest Sony

dealer.

15

EN

A

ATT 8

Automatic Music Sensor (AMS) 6

Automatic tuning 7

Automatic Tuner Activation (ATA) 6

B

BAL (left-right) 8

BAS (bass) 8

Best Tuning Memory (BTM) 6

C

Caution alarm 4

Clock 5

D, E

D-BASS (D-Bass) 8

Display 6

F, G, H, I, J, K

FAD (front-rear) 8

Fast-forward 5

Front panel 4

Fuse 10

L

Local seek mode (LCL) 7

M, N, O

Manual tuning 7

P, Q

Preset search 7

R, S

Radio 6

Reset 4

Rewind 5

Rotary commander 11

T, U, V, W, X, Y, Z

Tape playback 5

TRE (treble) 8

Index

Additional Information

2

ES

¡Bienvenido!

Enhorabuena por la adquisición del sistema

estéreo de cassettes para automóvil de Sony.

Esta unidad permite disfrutar de diversas

funciones mediante un mando rotativo

opcional.

3

ES

Indice

Procedimientos iniciales

Restauración de la unidad ................................. 4

Extracción del panel frontal............................... 4

Puesta en hora del reloj ...................................... 5

Reproductor de cassettes

Escucha de cintas ................................................ 5

Radio

Memorización automática de emisoras

— Función de memorización de la mejor

sintonía (BTM) ................................................ 6

Memorización de las emisoras deseadas......... 7

Recepción de emisoras memorizadas .............. 7

Otras funciones

Ajuste de las características del sonido............ 8

Atenuación del sonido ....................................... 8

Cambio de los ajustes de sonido y tono del

pitido ............................................................... 8

Información complementaria

Precauciones ........................................................ 9

Mantenimiento .................................................. 10

Desmontaje de la unidad ................................. 10

Etiquetas del mando rotativo .......................... 11

Ubicación de los controles ............................... 12

Especificaciones ................................................. 13

Guía para la solución de problemas ............... 14

Indice alfabético ................................................ 15

4

ES

Procedimientos

iniciales

Restauración de la unidad

Antes de emplear la unidad por primera vez, o

bien después de sustituir la batería del

automóvil, es necesario restaurar dicha

unidad.

Presione la tecla de restauración con un objeto

puntiagudo, como un bolígrafo.

Nota

Al presionar la tecla de restauración se borrarán todos los

programas memorizados y las funciones de memoria.

Extracción del panel

frontal

Es posible extraer el panel frontal de la unidad

para evitar que lo roben.

1 Presione (OFF).

2 Presione (RELEASE) para extraer el panel

frontal y desmóntelo tirando hacia fuera

con suavidad.

Notas

• Tenga cuidado de no dejar caer el panel frontal cuando lo

extraiga de la unidad.

• Si presiona (RELEASE) para extraer el panel frontal con

la alimentación de la unidad conectada, ésta se

desconectará automáticamente a fin de evitar que se

dañen los altavoces.

Inserción del panel frontal

Fije la parte A del panel frontal a la parte B

de la unidad tal como muestra la ilustración y

ejerza presión hasta oír un chasquido.

Notas

• Cerciórese de colocar correctamente el panel frontal en la

unidad, ya que no podrá fijarse al revés.

• No presione el panel frontal a la fuerza contra la unidad

cuando lo inserte en la misma. El panel podrá insertarse

con facilidad presionándolo ligeramente contra la unidad.

• Para llevar consigo el panel frontal, métalo en la caja

para el mismo suministrada.

• No aplique demasiada fuerza sobre el visor del panel

frontal.

• No exponga el panel frontal a la luz solar directa, fuentes

térmicas tales como conductos de aire caliente, ni lo deje

en lugares húmedos. No lo deje nunca en el salpicadero,

etc. con el automóvil aparcado al sol, porque la

temperatura del interior del mismo podría aumentar

considerablemente.

Alarma de aviso

Si pone en OFF la llave de encendido sin haber

extraído el panel frontal, se activará la alarma

de aviso, y durante algunos segundos sonará

un pitido (solamente cuando el selector

POWER SELECT esté en la posición A).

A

B

Tecla de restauración

(RELEASE)

5

ES

Puesta en hora del reloj

El reloj posee una indicación digital de 24

horas.

Por ejemplo, ajuste el reloj en 10:08

1 Presione (OFF) o (DSPL) durante el

funcionamiento.

2 Presione (DSPL) durante dos segundos.

1 Ajuste los dígitos de la hora.

2 Presione ligeramente (SEL).

3 Ajuste los dígitos de los minutos.

3 Presione ligeramente (DSPL).

Nota

Si el selector POWER SELECT de la parte superior de la

unidad se ajusta en la posición B, no es posible poner en

hora el reloj a no ser que la alimentación esté activada.

Ponga en hora el reloj cuando haya encendido la radio.

Los dígitos de los minutos parpadean.

Los dígitos de la hora parpadean.

Para

avanzar

Para

retroceder

El reloj comienza a funcionar.

Reproductor de

cassettes

Escucha de cintas

Inserte un cassette.

La reproducción se iniciará de forma

automática.

Si ya ha insertado un cassette, presione

(SOURCE) varias veces hasta que aparezca

“TAPE”.

La cara superior está reproduciéndose.

La cara inferior está reproduciéndose.

Consejo

Para cambiar la dirección de transporte de cinta, presione

(MODE) (*) durante la reproducción.

Bobinado rápido de cintas

Durante la reproducción, presione

cualquier lado de (SEEK/AMS) durante

dos segundos.

Para iniciar la reproducción durante el

rebobinado o el avance rápido, presione

(MODE) (*).

Procedimientos iniciales/Reproductor de cassettes

Presione

(OFF)

6

Para

Detener la reproducción

Expulsar el cassette

Avance rápidoRebobinado



100



1000



1000



1008



1008

Para

avanzar

Para

retroceder

SEEK

AMS

TAPE



TAPE



6

ES

Para localizar los

temas posteriores

Para localizar los

temas anteriores

Radio

Memorización automática

de emisoras

— Función de memorización de la mejor

sintonía (BTM)

Esta función buscará las emisoras de señal más

intensa dentro de la banda actualmente

seleccionada y las memorizará por orden de su

frecuencia.

¡PARA EVITAR ACCIDENTES!

Durante la conducción, se recomienda emplear

la función de sintonizacion automática en vez

de la manual.

1 Presione (SOURCE) varias veces para

seleccionar el sintonizador.

Cada vez que presione (SOURCE), la fuente

cambia de la siguiente forma:

TAPE ˜ TUNER

2 Presione (MODE) varias veces para

seleccionar la banda.

Cada vez que presione (MODE), la banda

cambia de la siguiente forma:

FM1 n FM2 n FM3 n MW n LW

3 Presione (BTM) durante dos segundos.

Notas

• La unidad no almacenará en las teclas numéricas de

memorización emisoras de señales débiles. Si se reciben

pocas emisoras, algunas de las teclas mencionadas

permanecerán vacías.

• Cuando se indique un número de memorización en el

visor principal, la unidad almacenará emisoras a partir

del mostrado actualmente.

” Reproducción de cintas ” Reloj

Frecuencia* “

SEEK

AMS

Localización del comienzo de los

temas

— Sensor de música automático (AMS)

Es posible omitir un máximo de nueve temas

de una vez.

Durante la reproducción, presione

momentáneamente cualquier lado de

(SEEK/AMS).

Nota

La función AMS puede no activarse si:

• el espacio en blanco entre temas es inferior a 4 segundos

• hay ruido entre los temas

• existen largas secciones con volumen bajo, o bien

secciones sin sonido.

Cambio de los elementos

mostrados

Cada vez que presione (DSPL)

momentáneamente durante la reproducción de

la cinta, los elementos mostrados cambian de

la siguiente forma:

* Mientras la función ATA esté activada.

Sintonización de la radio durante el

bobinado rápido de cintas

— Activación automática del sintonizador

(ATA)

Presione (5) durante la reproducción.

“ATA” aparece en el visor.

Al utilizar (SEEK/AMS) durante dos segundos

para el avance rápido o el rebobinado de la

cinta, el sintonizador se activará

automáticamente.

Para cancelar esta función, presione (5) de

nuevo.

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