Sony XR-1790 Bedienungsanleitung

1999 by Sony Corporation

Operating Instructions US

3-865-584-11 (1)

FM/AM

Cassette Car

Stereo

XR-1790

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. XR-1790 Serial No.

Welcome!

Thank you for purchasing the Sony Cassette

Car Stereo. This unit lets you enjoy a variety of

features.

Features

General

•Built-in power amplifier (max. output:

35 W ×4 ch) enables you to enjoy a

4-speaker system.

•Digital 12-hour clock provided (page 5).

Cassette player section

ATA (Automatic Tuner Activation) for

automatically turning on the tuner while fast-

forwarding or rewinding a tape (page 6).

Tuner section

•Up to 18 stations can be preset: 12 stations on

FM and 6 stations on AM.

•Automatic memory function stores a total

of 18 stations in memory quickly and easily

(page 7).

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.

Table of Contents

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

Getting Started

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

Cassette Player

Listening to a tape ............................................... 6

Ejecting the cassette ............................................ 6

Fast-winding the tape ......................................... 6

Radio reception during fast-forwarding or

rewinding of a tape

— ATA (Automatic Tuner Activation)

function ........................................................... 6

Radio

Searching for stations automatically

— Automatic tuning...................................... 7

Tuning in by adjusting the frequency

— Manual tuning........................................... 7

Memorizing stations automatically

— Automatic memory function................... 7

Memorizing only the desired stations ............. 8

Receiving the memorized stations.................... 8

Other Functions

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

Enjoying bass and treble at low volume

— Loudness Function ................................... 8

Attenuating the beep tone ................................. 8

Additional Information

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

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

Dismounting the unit ....................................... 11

Specifications ..................................................... 12

Troubleshooting guide ..................................... 13

Location of controls

7LCL (local seek) button 7

8(volume/bass/treble/

balance/fader control) buttons 5, 8

9SEEK/MANU button 7

!º LOUD (loudness) button 8

!¡ TUNER/A MEM (radio on •band select/

automatic memory) button 7, 8

!™ OFF button

Refer to the pages for further details.

1Display window

2SEL (control mode select) button 5, 8

3DSPL (display mode change/time set)

button 5

46(eject) button 6

5During radio reception:

Preset number buttons 8

During tape playback:

ATA

ATA (Automatic Tuner

Activation) button 6

60/)(fast winding)/DIR (tape

transport direction change) buttons 6

DSPL ATA

SEEK

MANU

LCL

A MEM

DIR

213 64 5

XR-1790

SEL TUNER OFFLOUD

Getting Started

The clock activates.

4Press the

DSPL

button momentarily.

Note

The clock cannot be set unless the power is turned

on. Set the clock after you turn on the radio, or

during tape playback.

Getting Started

Setting the clock

The clock has a 12-hour digital indication.

For example, setting it to 10:08

1Display the time.

(Press the

DSPL

button during unit

operation.)

2Press the DSPL button for more than two

seconds.

Set the hour digits.

3Press the

SEL

button momentarily.

Set the minute digits.

(to go back) (to go forward)

The hour digit blinks.

The minute digits blink.

Direction

indicator*

(

To advance To rewind

To resume playback, press the other fast-

winding button partially until the locked

button is released.

*The 9or (indicator will flash while fast-

winding the tape.

Radio reception during

fast-forwarding or

rewinding of a tape

— ATA (Automatic Tuner Activation) function

Press the

ATA

button during playback.

n“ATA” appears on the display.

When fast-forwarding or rewinding with the

0or )button, the tuner will turn on

automatically.

Fast-winding the tape

Cassette Player

Listening to a tape

After inserting the cassette, playback

will start automatically.

To change the tape direction,

press both the 0and the )buttons at the

same time.

Indication of tape transport direction

The side facing up is being played.

The side facing down is being played.

At the end of the tape, the playing direction

will change automatically.

Note

Before turning off the unit, eject the tape to avoid

tape damage.

Ejecting the cassette

Press the button to stop playback and eject

the cassette.

Tuning in by adjusting the

frequency— Manual tuning

1Select the desired band.

2Press and hold either side of the SEEK/

MANU button.

Release the button when the desired station

is received.

PREVENT ACCIDENTS!

While driving, use the automatic tuning and

the memory preset tuning instead of the

manual tuning.

Memorizing stations

automatically

— Automatic memory function

Stations with the clearest reception are

automatically searched and memorized on

each band (FM1, FM2 and AM). Up to 6

stations on each band can be stored on the

preset number buttons 1 to 6 in the order of

band frequency.

1Select the desired band.

2Press the TUNER/A MEM button for more

than two seconds.

The unit will start scanning the selected

band and automatically memorize the

tuned stations on the preset number button

1 through 6.

For lower

frequencies

Cassette Player/Radio

FM1 nFM2 nAM nFM1

For higher

frequencies

Radio

Searching for stations

automatically

— Automatic tuning

1Select the desired band.

2Press either side of the SEEK/MANU

button momentarily to search for the

next station (automatic tuning).

The scanning stops when a station is received.

Press either side of the button repeatedly until

the desired station is received.

When an FM stereo program with a sufficient

signal strength is tuned in,

To avoid the automatic tuning from stopping on

stations too frequently, press the LCL button

momentarily to get the “LCL” indication (local

seek mode).

Only the stations with relatively strong signals will

be tuned in. The local seek mode functions only

when the automatic tuning is in operation.

the “ST” indication will appear.

FM1 nFM2 nAM nFM1

For lower

frequencies For higher

frequencies

TUNER

A MEM

SEEK

MANU

SEEK

MANU

TUNER

A MEM

SEEK

MANU

SEEK

MANU

TUNER

A MEM

TUNER

A MEM

Other Functions

Adjusting the sound

characteristics

1Select the item you want to adjust by

pressing the

SEL

button repeatedly.

VOL (volume) nBAS (bass) nTRE

(treble) nBAL (balance) nFAD (fader)

nVOL (volume)

2Adjust the selected item by pressing

either the or button.

Adjust within three seconds after selecting.

(After three seconds the button will again

serve as volume control button.)

Enjoying bass and treble

at low volume

— Loudness Function

Press the

LOUD

button. n“LOUD” will

appear on the display.

Bass and treble will be boosted. To cancel,

press again.

Attenuating the beep

tone

Press the

button while pressing

the

SEL

button.

To reactivate the beep tone, press these buttons

once more.

Memorizing only the

desired stations

1Select the desired band.

2Tune in the station which you wish to

store on the preset number button.

3Press and hold the desired preset

number button (

ATA

) for about

two seconds until you hear a beep tone.

The number of the pressed preset number

button appears in the display window.

Up to 6 stations on each band (FM1, FM2 and AM)

can be stored on the preset number buttons in the

order of your choice. Therefore, 12 stations can be

memorized on FM.

If you try to store another station on the same

preset number button, the previously stored

station will be erased.

Receiving the memorized

stations

1Select the desired band.

2Press momentarily the preset number

button on which the desired station is

stored.

Note

If you press the preset number button for more

than two seconds, the currently received station

will be memorized. To receive the previously

memorized station, make sure that the preset

number button is pressed only momentarily.

FM1 nFM2 nAM nFM1

TUNER

A MEM

TUNER

A MEM

Radio/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.

•If your car is equipped with a power

antenna, note that it will be automatically

extended 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.

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.

•When the tape is played back for a long

period, the cassette may become warm

because of the built-in power amplifier. This

is not a sign of a malfunction.

•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.

Notes on cassette deck tape heads

•Long use of cassette tapes contaminates the

tape head causing poor sound quality or

complete sound dropout. Therefore, we

recommend cleaning the tape head once a

month or so with the separately available

Sony Cassette Cleaning Set. If the sound does

not improve after using a cleaning cassette,

please consult your nearest Sony dealer.

•In case of old or inferior cassette tapes, the

tape head gets contaminated much more

quickly. Depending on the tape, one or two

playbacks may cause poor sound.

Slack

Maintenance

Fuse replacement

When replacing the fuse, be sure to use one

matching the amperage rating stated on the

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.

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.

Fuse (10 A)

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