Ericsson 4220 Telephone User Manual

13-1288.fm Page 1 Wednesday, July 14, 1999 6:02 PM

Cat. No. 13-1288

OWNER’S MANUAL

Please read before using this equipment.

SYSTEM 741

Mini Stereo Component System


FEATURES

Your Optimus System 741 Mini Stereo

Component System offers all of the versatile features you need for excellent stereo sound and entertainment in one compact package. The System

741 includes an AM/FM stereo tuner,

3-band frequency equalizer, CD player with a 21-track programmable memory, dual cassette recorder with auto-stop, and two speakers.

SYSTEM FEATURES

E-Bass Control — boosts low frequency sounds for an emphasized bass sound.

3-Band Frequency Equalizer — lets you adjust the sound to match your listening area’s unique acoustics.

Auxiliary Inputs — let you play an auxiliary audio source through your system.

Supplied Speakers — let you immediately begin listening to your system’s sound.

Headphone Jack — lets you privately listen to your system.

CD PLAYER FEATURES

Skip Search — lets you quickly skip through a CD’s tracks so you can locate a particular one.

Audible Search — lets you quickly play any track on a CD (forward or backward) so you can locate a desired section.

Programmable Play — lets you program and play up to 21 tracks in any order.

Random Play — lets you play a CD’s tracks in random order.

Repeat Play — lets you automatically repeat a single track, all tracks on the

CD, or a programmed sequence of tracks.

3- or 5-Inch CD Compatible — lets you play either 3- or 5-inch CDs on the

System 741.

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© 1996 Tandy Corporation.

All Rights Reserved.

Optimus is a registered trademark used by Tandy Corporation.

RadioShack is a trademark used by Tandy Corporation.


CASSETTE PLAYER FEATURES

Auto-Stop — automatically stops the cassette tape when it finishes to protect the tape and tape-handling parts.

Multiple Source Recording — lets you record from the CD player, radio, or an external audio source (such as another cassette tape or CD player).

Mixed Recording — lets you record onto a cassette tape while you talk into a microphone and play prerecorded music from the other cassette deck.

Automatic Level Control (ALC) — automatically adjusts the recording level.

Consecutive Tape Play — plays one side each of two tapes, back to back.

Normal or High-Speed Dubbing — lets you copy tapes at normal or twice the normal speed.

Note: Most material on compact discs and prerecorded tapes is copyrighted.

Unauthorized duplication of copyrighted material is a violation of the copyright laws of most countries and such duplication may result in fines and/or imprisonment. Note, however, that in the United States, it is not a violation of U.S. copyright laws for a consumer to use an audio recording device to duplicate musical recordings for noncommercial (personal) use.

Warning: This system employs a laser light beam. Only a qualified service person should remove the cover or attempt to service this device, due to possible eye injury.

Warning: To prevent fire or shock hazard, do not expose this music system to rain or moisture.

CAUTION

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

!

CAUTION: TO REDUCE THE RISK OF

ELECTRIC SHOCK, DO NOT REMOVE

COVER OR BACK. NO USER-SERVICE-

ABLE PARTS INSIDE. REFER SERVIC-

ING TO QUALIFIED PERSONNEL.

!

This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the music system’s enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the music system’s case.

This symbol is intended to inform you that important operating and maintenance instructions are included in the literature accompanying this music system.

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CONTENTS

Connections ......................................................................................................... 6

Connecting the Speakers ................................................................................ 6

Connecting an External Audio Source ............................................................. 6

Connecting an External Antenna ..................................................................... 7

Connecting Power ........................................................................................... 7

Connecting Headphones ................................................................................. 8

Listening Safely ......................................................................................... 8

Basic Operation ................................................................................................... 9

Turning On/Off the System .............................................................................. 9

Adjusting the Balance ...................................................................................... 9

Using the 3-Band Frequency Equalizer ........................................................... 9

Using E-Bass ................................................................................................... 9

Radio Operation ................................................................................................. 10

CD Player Operation .......................................................................................... 11

Loading and Playing a CD ............................................................................. 11

Special CD Player Features .......................................................................... 12

Skip Search ............................................................................................. 12

Audible Search ........................................................................................ 12

Storing/Playing a Programmed Sequence .............................................. 12

Reviewing a Programmed Sequence ..................................................... 13

Editing a Programmed Sequence ........................................................... 13

Erasing a Programmed Sequence .......................................................... 13

Random Play .......................................................................................... 14

Cue ......................................................................................................... 14

Repeat .................................................................................................... 14

Time Display ........................................................................................... 15

Cassette Deck Operation .................................................................................. 16

Loading and Playing a Cassette Tape ........................................................... 16

Using Fast Forward/Rewind .................................................................... 17

Using Consecutive Play .......................................................................... 17

Dubbing and Recording ................................................................................. 17

Dubbing a Cassette Tape ........................................................................ 18

Recording from the Radio or CD Player ................................................. 19

Making a Mixed Recording ..................................................................... 19

Using an External Audio Source ...................................................................... 20

Listening to an External Audio Source .......................................................... 20

Recording from an External Audio Source .................................................... 20


Care and Maintenance ...................................................................................... 21

CD Care Tips ................................................................................................ 22

CD Player Care Tips ..................................................................................... 22

Tape Tips ....................................................................................................... 22

Erasing a Cassette Tape .......................................................................... 22

Preventing Accidental Recording ........................................................... 23

Restoring Tape Tension and Sound Quality ........................................... 23

Cleaning the Tape-Handling Parts .......................................................... 23

The FCC Wants You to Know ....................................................................... 24

Specifications .................................................................................................... 25

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6


CONNECTIONS

Note: Complete all other connections to the System 741 before you connect it to power.

CONNECTING THE

SPEAKERS

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CONNECTING AN

EXTERNAL AUDIO

SOURCE

You can connect an external audio source to your System 741, such as a

TV, CD player, or cassette deck, so you can listen to that source through the System 741.

Plug the audio source’s left and right line level audio wires into the

AUX L

(left, white) and

R

(right, red) input jacks on the back of the System 741.

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1. Press open the pair of terminal tabs marked

SPEAKER/R

(right) on the back of the System 741.

2. Insert one speaker’s red wire into the red (+) terminal and its black wire into the black (–) terminal and release the tabs to close the terminals.

3. Repeat Steps 1 and 2 to connect the other speaker’s wires to the terminals marked

SPEAKER/L

(left).

To operate an external audio source with the System 741, see “Using an

External Audio Source” on Page 20.


CONNECTING AN

EXTERNAL ANTENNA

Your System 741 has two built-in antennas. The AM antenna is internal, and the power cord serves as the FM antenna.

For improved reception, you can attach an external FM or VHF TV antenna (not supplied) to the 75-ohm or

300-ohm terminals on the back of the system.

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CONNECTING POWER

After making all other connections, plug your system’s AC power cord into a standard AC outlet.

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Caution: Your system’s power cord has a polarized plug (one blade is wider than the other). If you have difficulty inserting the plug into the outlet, do not force it. Turn the plug over and try again.

Note: If you are not connecting an external antenna, make sure the system’s power cord is fully extended.

Note: If you use an outside VHF TV antenna, you can use a signal splitter to connect your radio and TV to the same antenna.

Your local RadioShack store has a wide selection of antennas, splitters, and connectors.

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CONNECTING

HEADPHONES

To listen privately, you can connect a pair of stereo headphones with a 1 /

8

inch plug (not supplied). Your local

RadioShack store has a wide selection of stereo headphones.

To connect headphones, plug the headphones into the

PHONES

jack on the front panel.

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Listening Safely

To protect your hearing, follow these guidelines when you use headphones.

• Set the volume to the lowest setting before you begin listening.

After you begin listening, adjust the volume to a comfortable listening level.

• Do not listen at extremely high volume levels. Extended high-volume listening can lead to permanent hearing loss.

• Once you set the volume, do not increase it. Over time your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing.

Note: Connecting headphones automatically disconnects the System

741’s speakers.

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BASIC OPERATION

TURNING ON/OFF THE

SYSTEM

To turn on the system, simply press

POWER

. The POWER indicator lights.

Slide the control up to boost or down to reduce the level. The selected frequency range is not changed if you set the control to the center position (

0

).

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To turn off the system, press

POWER

again. The POWER indicator turns off.

ADJUSTING THE

BALANCE

To adjust the sound balance between the left and right speakers, turn

BAL-

ANCE

toward

L

(left) or

R

(right).

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LOW (100 Hz)

— Adjusts the frequencies in the low bass range (low organ notes and bass drums). Reduces rumble or other low-frequency noise.

MID (1 kHz)

— Adjusts the range of frequencies where the ear is most sensitive (vocals).

HIGH (10 kHz)

— Adjusts high frequency sounds (cymbals, flutes, and violins).

USING E-BASS

Press

E-BASS

to the in position for enhanced bass sound. The E-BASS indicator lights.

USING THE 3-BAND

FREQUENCY

EQUALIZER

You can use the

3-BAND FREQUENCY

EQUALIZER

to customize the sound you hear through the speakers. Each of the three slide controls lets you adjust the sound level in a specific frequency range.

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Press

E-BASS

to the out position for normal bass sound.

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RADIO OPERATION

1. Press

TUNER

. The TUNER indicator lights.

4. Set

MONO/STEREO

for the desired sound.

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2. Set

BAND

to

AM

or

FM

.

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Notes:

• If FM reception is strong, set

MONO/STEREO

to

STEREO

to receive the signal in stereo. The

FM STEREO indicator lights when you receive an FM broadcast in stereo.

3. Adjust

TUNING

to the desired station.

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• For the best AM reception, simply change the position of the system.

• For the best FM reception, fully uncoil the power cord or connect an external FM antenna.

• If FM stereo reception is weak, set

MONO/STEREO

to

MONO

.

The sound is monaural, but the reception should improve.

5. Adjust

VOLUME

,

BALANCE

, and the

3-BAND FREQUENCY EQUAL-

IZER


6. Press

E-BASS

to boost low frequency sounds for an emphasized bass sound.

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CD PLAYER OPERATION

LOADING AND PLAYING

A CD

1. Press

CD

. The CD indicator lights,

00 appears briefly, then

dISC

appears on the display.

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2. Press

OPEN/CLOSE

.

OPEN

appears on the display, and the

CD compartment opens.

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Caution: Never force the CD compartment door to close. You might damage the CD player’s loading mechanism or the CD.

5. Press

PLAY/PAUSE

to begin play.

Track number

01

and the elapsed play time appear on the display.

The CD player plays all the tracks in order.

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3. Carefully place a CD in the compartment with the label facing up.

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4. Press

OPEN/CLOSE

to close the

CD compartment. The display temporarily shows

00

, then shows the CD’s total number of tracks and total playing time.

Note: Press

PLAY/PAUSE

to stop the CD temporarily. appears on the display. Press

PLAY/PAUSE

again to play the CD.

disappears.

6. Adjust

VOLUME

,

BALANCE

, and the


IZER


7. Press

E-BASS


8. The CD automatically stops when it reaches the end. Press

STOP

to stop playing the CD before it automatically stops.

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SPECIAL CD PLAYER

FEATURES

Skip Search

You can skip forward or backward through the tracks on a CD or tracks in a programmed sequence to quickly find a desired track.

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• To skip to the beginning of the next track during play, press and release

SKIP/SEARCH

.

• To return to the beginning of the current track during play, press and release

SKIP/SEARCH

.

• To skip forward or backward to additional tracks, repeatedly press

SKIP/SEARCH

or

SKIP/SEARCH

until the desired track number appears on the display.

Notes:

• If you press

SKIP/SEARCH

while the first track is playing, the first track replays.

• If you press

SKIP/SEARCH

while the last track is playing, it has no effect.

Audible Search

To search forward or backward during play, press and hold down

SKIP/

SEARCH

or

SEARCH

. The CD plays rapidly and you hear the music at a higher speed but lower volume.

Release the button to resume normal play.

Storing/Playing a

Programmed Sequence

You can program the CD player to play up to 21 tracks in any order you choose, and you can program the same track to play more than once.

1. While the CD player is stopped, press

PROGRAM

. The display

00 P: 01

(memory location 1).

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2. Press

SKIP/SEARCH

or

SKIP/SEARCH

to find the track you want to program into memory location 1.

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3. Press

PROGRAM

again to store the track in the current memory location. The next memory location appears.

The CD’s total number of tracks and playing time appear.

Note: To play the programmed sequence again, press

PROGRAM

then

PLAY/PAUSE

.

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4. Repeat Steps 2–3 for each track you want to program.

Note: If you program more than

21 tracks, the additional tracks replace the currently programmed tracks.

5. Press

PLAY/PAUSE

.

PGM

appears on the display and the CD player plays the tracks in the order you programmed.

Notes:

• Press

PLAY/PAUSE

to temporarily stop the music. Press

PLAY/

PAUSE

again to resume play.

• Press

SKIP/SEARCH

and

SKIP/SEARCH

to move through the programmed sequence during play.

Programmed play automatically stops at the end of the last programmed track.

To stop the CD player at any time during programmed play, press

STOP

.

Reviewing a Programmed

Sequence

To review a programmed sequence, while play is stopped, repeatedly

PROGRAM

. The track number and memory position number of each stored track appear on the display.

Editing a Programmed

Sequence

To edit the programmed sequence, repeatedly press

PROGRAM

until the stored track you want to change appears on the display.

Press

SKIP/SEARCH

or

SKIP/SEARCH

until the new track appears on the display, then press

PRO-

GRAM

to store the new track in place of the old one.

Erasing a Programmed

Sequence

To erase a programmed sequence, you can press

OPEN/CLOSE

or

POW-

ER

before, during, or after programmed play.

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Random Play

You can set the CD player to play a

CD’s tracks in random order.

1. Before or during play, press

RAN-

DOM

so

RND


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2. If necessary, press

PLAY/PAUSE

to begin random play. The CD player randomly selects and plays all the tracks on the CD once, then automatically stops.

Note: If you select

RANDOM

while a track is playing, the CD player plays the track to the end, then randomly selects and plays all the tracks on the CD once.

3. To stop the CD player at any time during random play, simply press

STOP

.

Notes:

• The currently selected track number and its elapsed play time appear as the CD plays.

• To skip to the next randomly selected track, press

SKIP/

SEARCH

.

• During random play, you can use

to advance to the next randomly selected track, use to return to the beginning of the current track, or repeat the current track (see “Repeat” below).

To cancel random play and resume normal play without stopping, simply press

RANDOM

.

RND

disappears from the display and the CD player resumes normal play.

Cue

To start playing a CD from a desired track, before you begin play or during pause, repeatedly press

SKIP/

SEARCH

or until the desired track number appears on the display. Then press

PLAY/

PAUSE

to play the track.

Repeat

You can continuously repeat a single track, all the tracks on a CD, or an entire programmed sequence of tracks

(see “Storing/Playing a Programmed

Sequence” on Page 12).

To continuously repeat a single track, press

REPEAT

before or during play.

REP 1


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To continuously repeat all tracks on the CD, press

REPEAT

twice before or during play. play.

REP

appears on the dis-

To continuously repeat an entire programmed sequence, first program the tracks you want to play, then press

REPEAT

twice before or during play.

REP


To cancel repeat play during or after play, repeatedly press

REPEAT

until

REP 1

and

REP

disappear from the display. If repeat is cancelled during play, the CD player resumes normal play.

Note: Pressing

STOP

cancels repeat play.

Time Display

While a track is playing, the display shows the current track’s number and the elapsed playing time since the track began playing.

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Press

TIME

once to display the current track’s remaining playing time.

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Press

TIME

twice to display the CD’s total remaining playing time.

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Press

TIME

three times to return to the original display.

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CASSETTE DECK OPERATION

You can play one side of a cassette tape in either TAPE 1 or TAPE 2 and you can record tapes in TAPE 2.

3. Load the cassette with the open edge down, the full reel on the left, and the side you want to play facing you.

LOADING AND PLAYING

A CASSETTE TAPE

Notes:

• We recommend C-30, C-60, and

C-90 tapes. Avoid using C-120 tapes because they are thin and can easily get tangled in tape mechanisms.

• Before playing or recording any cassette tape, take up any slack in the tape by turning one of the cassette’s hubs with a pencil. If you do not remove excess slack, the tape might become tangled in the record/playback mechanism.

1. Press

TAPE

. The TAPE indicator lights.

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4. Close the cassette compartment door until it clicks.

5. Press

PLAY

.

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2. Open either cassette compartment by pressing

STOP/EJECT

.

Note: Press

PAUSE

to temporarily stop tape play. To resume play, press

PAUSE

again.

6. Adjust

VOLUME

,

BALANCE

, and the


IZER


7. Press

E-BASS


8. The cassette stops automatically when it reaches the end. Press

STOP/EJECT

to stop tape play sooner.

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to listen to the other side.

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Using Fast Forward/Rewind

Press

FAST-F

to fast-forward or

RE-

WIND

to rewind the cassette. To stop fast forward or rewind before the end of the tape, simply press

STOP/EJECT

.

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Using Consecutive Play

You can play one side of a cassette in

TAPE 1, then immediately play one side of a cassette in TAPE 2.

1. Load the cassette you want to play first into TAPE 1 and the one you want to play second into

TAPE 2.

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The tape player automatically stops when the cassette in TAPE 2 reaches end.

To stop consecutive play before the tape player automatically stops, press

STOP/EJECT

on both decks.

DUBBING AND

RECORDING

You can use the System 741 to dub

(copy) another tape, or record from the radio, CD player, or an external audio source (see “Recording from an

External Audio Source” on Page 20).

Notes:

• The

VOLUME

,

E-BASS

,

BAL-

ANCE

, and


EQUALIZER

settings do not affect your recordings. The system automatically adjusts those levels.

• To record on a cassette, its eraseprotection tabs must be in place

(see “Preventing Accidental Recording” on Page 23).

2. Press

PLAY

on TAPE 1. The cassette in TAPE 1 plays.

3. Press

PAUSE

then

PLAY

on TAPE

2. When TAPE 1 reaches the end, the cassette in TAPE 2 plays.

17


Dubbing a Cassette Tape

You can dub at the tape’s normal playing speed or at twice the normal speed. If you dub at normal speed, you can listen as you record.

1. Press

TAPE

.

2. Load the pre-recorded cassette you want to record from into TAPE

1. Be sure the side you want to record from is facing you.

3. Load a blank cassette (or one you want to record over) into TAPE 2 with the side you want to record on facing you.

4. Set

DUBBING

to

NORMAL

or

HIGH

.

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5. Press

PAUSE

and

RECORD

on

TAPE 2. Both

PAUSE

and

RECORD

lock down.

6. Press

PLAY

on TAPE 1. TAPE 1 begins playback,

PAUSE

releases on TAPE 2, and dubbing begins.

Notes:

• To skip an unwanted section on

TAPE 1, press

PAUSE

on TAPE

2 while the unwanted section plays. To resume dubbing,

PAUSE

again.

• To monitor the tape you are copying, adjust

VOLUME

.

Dubbing automatically stops when the cassette in TAPE 2 reaches its end.

If the cassette in TAPE 1 continues to play, press

STOP/EJECT

. To stop dubbing before TAPE 2 stops automatically, press

STOP/EJECT

on both cassette compartments.

• Set

DUBBING

to

NORMAL

to dub at normal speed. This produces the highest quality results.

DUBBING

to

HIGH

to dub at approximately twice the normal speed. This produces the fastest results, but the quality is slightly reduced.

18


Recording from the Radio or

CD Player

Press

TUNER

and tune to the desired station, or press

CD

and load the desired CD.

Insert a cassette you want to record onto into TAPE 2, then press

PAUSE

and

RECORD

. When the desired selection on the radio or CD player plays, release

PAUSE

.

Note: Sometimes AM broadcasts produce a hum or whistling sound that you can hear while listening to a recording from the radio. To eliminate or reduce this sound, set

BEAT CUT

on the back of the system to the position that gives you the best quality recording.

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1. Press

TAPE

. The TAPE indicator lights.

2. Load the pre-recorded cassette you want to record from into TAPE

1. Be sure the side you want to record from is facing you.

3. Load a blank cassette (or one you want to record over) into TAPE 2 with the side you want to record on facing you.

4. Insert the microphone into the

MIC

jack.

5. Press

PAUSE

and

RECORD

on

TAPE 2.

6. When you are ready to record,

PLAY

on TAPE 1.

You can sing or speak along with the cassette playing in TAPE 1.

Your voice and the music will be mixed and recorded on the cassette in TAPE 2.

Note: To avoid feedback, adjust

VOLUME

.

Recording stops automatically when the cassette in TAPE 2 ends, or you can press

STOP/EJECT

on TAPE 1 or

TAPE 2 to stop recording at any time.

Making a Mixed Recording

You can connect a microphone with a

1 /

8

-inch plug into the

MIC

jack so you can record on TAPE 2 while you speak into the microphone and play a pre-recorded tape in TAPE 1. Your local RadioShack store carries a wide selection of microphones.

19


USING AN EXTERNAL AUDIO SOURCE

If you connected an external audio source, such as a TV, VCR, or an external CD player or cassette deck, you can use your System 741 to listen to or record audio from that source.

LISTENING TO AN

EXTERNAL AUDIO

SOURCE

1. Turn

VOLUME

to

MIN

, and make sure the external audio source’s volume control (if any) is also set to its lowest level.

2. Press

AUX

. The AUX indicator lights.

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3. Start playback on the external audio source.

4. Adjust

VOLUME

,

BALANCE

, and the


IZER


5. Press

E-BASS


RECORDING FROM AN

EXTERNAL AUDIO

SOURCE

Note: The

VOLUME

,

E-BASS

,

BAL-

ANCE

, and


EQUALIZER

settings do not affect your recordings. The system automatically adjusts those levels.

1. Turn

VOLUME

to

MIN

, and make sure the external audio source’s volume control (if any) is also set to its lowest level.

2. Press

AUX

. The AUX indicator lights.

3. Insert a cassette you want to record on into TAPE 2.

4. Press

RECORD

to begin recording.

5. Start playback on the external audio source.

Note: To pause the tape during recording, press

PAUSE

. To resume recording, press

PAUSE

again.

6. To stop the tape at any time during recording, press

STOP/EJECT

.

7. Stop playback on the external audio source.

20


CARE AND MAINTENANCE

Your Optimus System 741 Mini Stereo Component System is an example of superior design and craftsmanship. The following suggestions will help you care for the system so you can enjoy it for years.

Keep the system dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits.

Use and store the system only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, and distort or melt plastic parts.

Handle the system gently and carefully. Dropping it can damage the circuit boards and can cause the system to work improperly.

Keep the system away from dust and dirt, which can cause premature wear of parts.

CLEANER

Wipe the system with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the system.

Modifying or tampering with the system’s internal components can cause a malfunction and might invalidate its warranty and void your FCC authorization to operate it. If your system is not performing as it should, take it to your local RadioShack store for assistance.

21


CD CARE TIPS

Although a CD is very durable, you should handle it with care. We recommend the following precautions.

• Keep the CD in its protective case or sleeve when you are not playing it.

• Keep the CD clean. Your local

RadioShack store sells suitable

CD cleaner kits.

• Keep the CD dry. Even a single drop of moisture can act as a lens and affect the laser beam’s focus.

If the CD gets wet, wipe it with a soft, dry cloth before playing it.

• Do not write on either side of a

CD, especially the non-label side.

• Handle the CD by its edge to avoid fingerprints and surface scratches that can prevent the laser from accurately reading the

CD.

• Do not store CDs in high-temperature, high-humidity locations.

• Remove any loaded CD from the

CD player before moving the System 741 to prevent damaging the

CD.

• To repair scratches on the CD surface, use a CD scratch repair kit

(such as “Scratch ’n Fix,” Cat. No.

42-127).

CD PLAYER CARE TIPS

• To avoid damaging the CD player, do not place anything but a CD in the CD drawer.

• Moving the CD player suddenly from a cold place to a warmer one can cause moisture to form on the pickup lens and disrupt operation.

If this happens, unplug the CD player then wait about one hour before plugging it back in and playing the CD.

• If the System 741 is subjected to a sudden shock or jolt during play, the CD’s rotation speed might suddenly change, and the music might be briefly interrupted. This is not a malfunction.

TAPE TIPS

Erasing a Cassette Tape

To erase a previously recorded section of a tape, simply record over it. To erase the entire cassette tape, let the tape record to the end with no source playing.

You can quickly erase both sides of a cassette tape using a bulk tape eraser

(such as Cat. No. 44-232, not supplied), available at your local RadioShack store.

22


Preventing Accidental

Recording

Cassette tapes have two protection tabs — one for each side. To protect a recording from being accidentally recorded over, use a screwdriver to remove one or both of the cassette’s protection tabs.

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Note: Removing the protection tabs does not prevent a bulk eraser from erasing a cassette tape.

If you want to record on a tape side after you have removed the protection tab, place a piece of strong plastic tape over that side’s protection hole.

Be sure you cover only the hole originally covered by the protection tab.

Restoring Tape Tension and

Sound Quality

After you play a cassette tape several times, the tape might become tightly wound on the reels. This can cause playback sound quality to deteriorate.

To restore the sound quality, fast-forward the tape from the beginning to the end of one side, then completely rewind it. Then loosen the tape reels by gently tapping each side of the cassette’s outer shell on a flat surface.

Caution: Be careful not to damage the cassette when tapping it. Do not touch the exposed tape or allow any sharp objects near the cassette.

Cleaning the Tape-Handling

Parts

Dirt, dust or particles of the tape’s coating can accumulate on the tape deck’s tape heads and other parts that the tape touches. This can greatly reduce the performance of the cassette player.

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23


Use the following cleaning procedure after every 20 hours of tape player operation.

1. Disconnect power.

2. Open the cassette compartment doors on TAPE 1 and TAPE 2.

3. Press

PLAY

on TAPE 1 and TAPE

2 to expose the tape-handling parts.

4. Use a cotton swab dipped in denatured alcohol or tape head cleaning solution to clean the record and play heads, pinch roller, capstan, tape guides, and erase head.

(il-

Your local RadioShack store sells a complete line of cassette deck cleaning supplies.

THE FCC WANTS YOU

TO KNOW

This system complies with limits for a

Class B digital device as specified in

Part 15 of

FCC Rules

. These limits provide reasonable protection against radio or TV interference in a residential area. However, your system might cause TV or radio interference even when it is operating properly. To eliminate interference, you can try one or more of the following corrective measures:

• Reorient or relocate the receiving antenna

• Increase the distance between the system and the radio or TV

• Use outlets on different electrical circuits for the system and the radio or TV

If the problem continues, take your system to your local RadioShack store for assistance.

5. When you finish cleaning, press

STOP/EJECT

on TAPE 1 and

TAPE 2 and close the cassette compartment doors, then reconnect power.

24


SPECIFICATIONS

Cassette Player:

Tape Speed ............................................................................................ 1 7 /

8

ips

Wow and Flutter (WRMS) .......................................................................0.35%

Frequency Response (at –3 dB) .................................................100 Hz–8 kHz

Recording System ................................................................................ AC Bias

Erase System ........................................................................................ Magnet

CD Player:

Number of Programmable Tracks ................................................................. 21

Tracks Frequency Response (at –3 dB) ......................................60 Hz–15 kHz

Dynamic Range ........................................................................................70 dB

Signal-to-Noise Ratio (JIS-A) ...................................................................60 dB

Harmonic Distortion (at 1 kHz) ..................................................................... 1%

Separation (at 1 kHz) ...............................................................................40 dB

Sampling Frequency ......................................................................... 176.5 kHz

Quantization Number .................................................................................1-Bit

Linear/Channel Oversampling .............................................................. 4 Times

Pick-Up System .....................................................................................3 Beam

Optical Source ................................................................. Semiconductor Laser

Wavelength ................................................................................... 760–820 nm

25


General:

Microphone (Monaural) Impedance ................................................... 600 ohms

Headphones (Stereo) Impedance ....................................................16–32 ohm

Power Output ................................................................. 4.5 Watts per Channel

Dimensions (HWD) ....................................................12

1 /

8

¥ 10 5 /

8

¥ 9 1 /

4

Inches

(308 ¥ 270 ¥ 235 mm)

Weight: (Main Unit) ..................................................................................10 lb

(4.5 kg)

(Speakers) ...............................................................................3.15 lb

(1.4 kg)

Power Supply .................................................................. 120V AC 60 Hz, 38W

Tuning Range ..................................................................... AM: 530–1710 kHz

FM: 88–108 MHz

Graphic Frequency Equalizer .................................................... 100 Hz ±10 dB

1 kHz ±10 dB

10 kHz ±10 dB

Speaker Size ............................................................................ 5-Inch Speaker

Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

26


NOTES

27


RadioShack Limited Warranty

This product is warranted against defects for 90 days from date of purchase from

RadioShack company-owned stores and authorized RadioShack franchisees and dealers. Within this period, we will repair it without charge for parts and labor. Simply bring

your RadioShack sales slip as proof of purchase date to any RadioShack store. Warranty does not cover transportation costs. Nor does it cover a product subjected to misuse or accidental damage.

EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES

AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION

OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states do not permit limitation or exclusion of implied warranties; therefore, the aforesaid limitation(s) or exclusion(s) may not apply to the purchaser.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

We Service What We Sell

10/95

6A6

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

Printed in Hong Kong

Ericsson 4220 Telephone User Manual

SYSTEM 741

Mini Stereo Component System

FEATURES

CONTENTS

CONNECTIONS

CONNECTING THE

SPEAKERS

CONNECTING AN

EXTERNAL AUDIO

SOURCE

CONNECTING AN

EXTERNAL ANTENNA

CONNECTING POWER

CONNECTING

HEADPHONES

BASIC OPERATION

TURNING ON/OFF THE

SYSTEM

ADJUSTING THE

BALANCE

USING E-BASS

USING THE 3-BAND

FREQUENCY

EQUALIZER

RADIO OPERATION

CD PLAYER OPERATION

LOADING AND PLAYING

A CD

dISC

OPEN

01

00

SPECIAL CD PLAYER

FEATURES

00 P: 01

PGM

RND

RND

REP 1

REP

REP

REP 1

REP

CASSETTE DECK OPERATION

LOADING AND PLAYING

A CASSETTE TAPE

DUBBING AND

RECORDING

USING AN EXTERNAL AUDIO SOURCE

LISTENING TO AN

EXTERNAL AUDIO

SOURCE

RECORDING FROM AN

EXTERNAL AUDIO

SOURCE

CARE AND MAINTENANCE

CD CARE TIPS

CD PLAYER CARE TIPS

TAPE TIPS

THE FCC WANTS YOU

TO KNOW

FCC Rules

SPECIFICATIONS

NOTES

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