Sony XR-7850 Manual de usuario

1998 by Sony Corporation

Operating Instructions EN

FM/MW/SW

Cassette Car

Stereo

XR-7850

For installation and connections, see the supplied installation/connections

manual.

Welcome!

Thank you for purchasing the Sony Cassette

Car Stereo. This unit lets you enjoy a variety of

features by using a supplied rotary

commander.

Additional Information

Precautions ......................................................... 10

Maintenance ....................................................... 11

Dismounting the unit ....................................... 12

Location of controls .......................................... 13

Specifications ..................................................... 14

Troubleshooting guide ..................................... 15

Index ................................................................... 16

Table of contents

Getting Started

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

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

Preparing the rotary commander ..................... 4

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

Cassette Player

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

Playing a tape in various modes ....................... 6

Radio

Memorizing stations automatically

— Best Tuning Memory (BTM) ................... 7

Memorizing only the desired stations ............. 7

Receiving the memorized stations.................... 7

Other Functions

Using the rotary commander ............................ 8

Adjusting the sound characteristics ................. 9

Attenuating the sound ....................................... 9

Changing the sound and beep tone ................. 9

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 the right way up when

attaching it to the unit as it cannot be attached upside

down.

•Do not press the front panel hard against the unit 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, put it in the

supplied front panel case.

•Do not press hard or put excessive pressure to 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). If you connect an optional power

amplifier to the LINE OUT and do not use the

built-in amplifier, the beep tone will be

disabled.

Preparing the rotary

commander

When you mount the rotary commander,

attach the label in the illustration below.

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 ball-point pen.

Note

Pressing the reset button will erase all the memorized

program 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)

SEL

DSPL

MODE

SEL

DSPL

MODE

Setting the clock

The clock has a 12-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 bottom 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 minutes digits flashes.

To go backward

To go forward

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-forward

Rewind

100 

1000 

1008 

TAPE 

SEEK

AMS

SEEK

AMS

To locate the succeeding tracks

To locate the preceding tracks

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), the tuner will turn on

automatically.

To cancel this mode, press (5) again.

Skipping blanks during tape

playback — Blank skip

Press (6) during playback.

“BL SKIP” appears on the display.

Blanks longer than eight seconds will

automatically be skipped during tape

playback.

To cancel this mode, press (6) again.

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) during tape

playback, the displayed item changes as

follows:

zTape playback zClock zFrequency*

*While the ATA function is activated.

Playing a tape in various

modes

Searching for the desired track

— Intro scan

Press (1) during playback.

“INTRO” appears on the display.

The first 10 seconds of all the tracks are played.

When you find the desired track, press (1)

again. The unit returns to the normal playback

mode.

To cancel this mode, press (1) again.

Playing tracks repeatedly

— Repeat play

Press (2) during playback.

“REP” appears on the display.

When the current played track is over, it will

be played again from the beginning.

To cancel this mode, press (2) again.

Cassette Player/Radio

Memorizing only the

desired stations

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

MW, SW1 and SW2) can be stored on the

preset number buttons in the order of your

choice. Therefore, 18 FM stations can be

memorized.

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 memorized

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.

Radio

Memorizing stations

automatically

— Best Tuning Memory (BTM)

This function selects from the currently

received band the stations with the strongest

signals and memorizes them in order of their

frequency.

PREVENTING ACCIDENTS!

When tuning in while driving, use the

automatic tuning 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 nSW1 nSW2

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.

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

Only the stations with relatively strong signals can be

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

Using the rotary

commander

The rotary commander works by pressing

buttons and/or rotating controls.

By pressing buttons (the SOURCE

and the MODE buttons)

Every time you press (SOURCE), the

source changes as follows:

TAPE nTUNER

Pressing (MODE) changes the operation in the

following ways:

• the tape transport direction.

• the band, FM1 nFM2 nFM3 nMW n

SW1 nSW2.

Tip

You can turn on this unit by pressing (SOURCE) on the

rotary commander.

By rotating the control (the SEEK/

AMS control)

Rotate the control momentarily and

release it to:

• Locate the beginnings of the tracks on the

tape. Rotate and hold the control, and

release it to fast-wind the tape. To

playback, rotate and hold the control

again, and release it.

• Tune in the stations automatically.

Rotate and hold the control to tune in the

specific station.

(SOURCE)

(MODE)

Radio/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.

Tip

The unit decreases the volume automatically when a

telephone call comes in (Telephone-ATT function).

Changing the sound and

beep tone

Boosting the bass sound — D-Bass

You can enjoy clear and powerful bass sound.

The D-bass function boosts the low frequency

singal with a sharper curve than conventional

bass boost.

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. This effect is similar to

the one you get when you use an optional

subwoofer system.

By rotating the control while

pushing in (the PRESET/DISC

control)

Push in and rotate the control to:

Receive the stations memorized on the

preset buttons.

Other operations

Changing the operative direction

The operative direction of controls is factory

preset as in the illustration below.

If you need to mount the rotary commander

on the right side of the steering column, you

can reverse the controls‘ operative direction.

Press (SEL) for two seconds while

pushing in the VOL control.

To increase

To decrease

OFF

Press(OFF) to

turn off the unit.

Rotate the VOL control

to adjust the volume. Press (ATT)to

attenuate the

sound.

Press (DSPL) to change

the display items.

Press (SEL)

to adjust

and select.

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.

Note

If you connect an optional power amplifier to the LINE

OUT and do not use the built-in amplifier, the beep tone

will be disabled.

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.

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