Sony XR-4790 Bedienungsanleitung

1998 by Sony Corporation

3-861-514-11 (1)

Operating Instructions

Manual de instrucciones

Bruksanvisning

Manual de instruções

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.

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.

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

Attaching the front panel

Attach part Aof the front panel to part Bof

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.

1Press (OFF).

2Press (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.

Reset button

(RELEASE)

Setting the clock

The clock has a 24-hour digital indication.

For example, setting it to 10:08

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

2Press (DSPL) for two seconds.

1Set the hour digits.

2Press (SEL) momentarily.

3Set the minute digits.

3Press (DSPL) momentarily.

Note

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

to the Bposition, 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)

Stop playback

Eject the cassette

Fast-forwardRewind

To go

backward To go

forward

SEEK

AMS

 100

 1000

 1008

TAPE 

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.

1Press (SOURCE) repeatedly to select the

tuner.

Each time you press (SOURCE), the source

changes as follows:

TAPE ˜TUNER

2Press (MODE) repeatedly to select the

band.

Each time you press (MODE), the band

changes as follows:

FM1 nFM2 nFM3 nMW nLW

3Press (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:

zTape playback zClock zFrequency*

* 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

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.

1Press (SOURCE) repeatedly to select the

tuner.

2Press (MODE) repeatedly to select the

band.

3Press (SEEK/AMS) to search for the

station you wish to store on a preset

number button.

4Press 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

1Press (SOURCE) repeatedly to select the

tuner.

2Press (MODE) repeatedly to select the

band.

3Press 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).

Other Functions

Adjusting the sound

characteristics

1Select the item you want to adjust by

pressing (SEL) repeatedly.

VOL (volume) nBAS (bass) nTRE

(treble) nBAL (left-right) nFAD

(front-rear)

2Adjust 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.

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

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

Release key (supplied)

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