Optimus SYSTEM 728 User Manual

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MINI STEREO COM PO N E N T SY ST EM

Cat. No. 13-1275

OWNER’S MANUAL

Please read before using this equipment.

SYSTEM 728

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FEATURES

Your Optimus System 72 8 Mini Stereo Compnent System is a v ersatile and high quality sound system. Its components include a 3-disc c arousel CD changer with 32-track memory, AM/FM stereo tuner with 20station presets, and dual cassette players with high-speed dubbing.

You can operate many of the system’s function s with its r emote con trol. The supplied speakers which include 5-inch woofers and tweeters, let you immediately begin using your system.

Its features include:

AM/FM Stereo Tuner

Selectable Electronic Graphic Equalizer

the preset sound characteristic curves (normal, pop, rock, and classic).

Preset Tunin

store up to 20 of your favorite stations for quick tuning.

Extended Bass

size low-bass sound.

æ lets you select any of

Memories

lets you empha-

æ let you

CD Changer

Automatic Search

ly select any track on the loaded CDs.

Repeat Pla

track, all tracks on a single CD, all CDs in the CD compartment, or a programmed sequence.

Random Pla

CD’s tracks in random order.

Sequence Track Pro

lets you program up to 32 tracks to play in any order you choose.

5- or 3-Inch CD Compatible

you play 5- or 3-inch CDs.

lets you quick-

repeats a single

plays all the loaded

rammin

æ lets

Dual Cassette Player

Normal or High-Speed D ubb ing

lets you dub tapes at normal or twice normal speed.

Consecutive Pla

plays one side of two tapes in sequence.

Auto-Stop

the tape when it finishes playing or recording and when it fast-forwards or rewinds to the end of the side. This protects the tape and tape-handling parts.

æ automatically

automatically stops

Automatic CD Changer

load and play up to three CDs.

Opti mus and Radio Shack are reg istered trademarks used by Tandy Corporation.

æ lets you

CAUTION

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General

let you

Auxiliary Input Jacks

connect an external audio input source to your syst em so you can lis ten to or record from it.

Microphone Mixin

along with the music you are playing.

Important:

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

Compact discs that you can play on your system’s CD player have this mark on them.

lets you sing

mend you record your system’s serial number here.

Serial Number:

Warnin

: To prevent fire or shock hazard, do n o t ex p os e this system to rain or moist u re .

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION

ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER -SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

: TO REDUCE THE RISK OF

This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the system’s enclosure that might be of suf ficient m agnitu de to co nstitute a r isk of el ectri c shock . Do not open the system’s case.

This symbo l is in tended to info rm you that important operating and

maintenance instructions are included in the litera ture accom panying this system.

Warning:

This system uses a laser light beam. Only a qualified service person should remove the cover or attempt to service this device, due to

Read this manual carefully. It will

possible eye injury.

help you get the most enjoyment from your system.

Your system’s serial number is located on the back panel. We recom-

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FCC INFORMATION

This system complies with the limits for a Class B digital d evice as s pecified in part 15 of limits provide reasonable protection against TV or radio 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 TV or radio’s receiving antenna.

FCC Rules

. Thes e

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

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

Consult your local Radio Shack store if the problem still exists.

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CONTENTS

Preparation .......................................................................................................7

Connecting the Speakers ............................................................................7

Connecting an External Audio Source .........................................................7

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

Installin g the Remote C o nt r ol’s Bat ter ies........ .... .. . .... . .. .... . .. .... . .. ... .. .... . .. .... .8

Connecting to Power...................................................................................8

Operation.......................................................................................................... 9

Turning Power On/Off..................................................................................9

Setting the Clock..........................................................................................9

Basic Operation.........................................................................................10

Using Headphones ................................... .... ..... .. ..... ..... .. ..... .. ..... ..... .. ..... ..11

Listening Safely ................................................................................... 11

Displaying the Time ...................................................................................12

Using the Electronic Graphic Equalizer.....................................................12

Using the Mute Button...............................................................................12

Using the Timer..........................................................................................12

Setting the Timer................................................................................. 12

Turning the Timer On/Off.....................................................................14

Displaying the Timer............................................................................14

Using the Sleep Timer ...............................................................................15

Using the Remote Control.........................................................................15

the Tuner.............................................................................................. 16

Usin

Manual Tuning ...........................................................................................16

Automatic Seek Tuning..............................................................................17

Memory Tu n ing............ ........................ ................ ........................ ..............17

Storing Stations in Memory................................................................. 17

Manually Tuning to a Preset Station ...................................................18

Scanning the Preset Stations..............................................................18

the CD Changer...................................................................................19

Usin

Loading a CD.............................................................................................19

Playing a CD............................ ........................ ................ ........................ ..19

Selecting Another CD................................................................................ 20

Automatic Search ......................................................................................20

Random Play.................... ........................ ................ ........................ .........20

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Repeat Play............................................................................................... 21

Repeating a Single Track.................................................................... 21

Repeating All Tracks on a Selected CD .............................................. 21

Repeating All Tracks on All Loaded CDs............................................ 21

Repeating a Programmed Sequence..................................................21

Programmed Play ......................................................................................22

Programming and Playing a Sequence of Tracks............................... 22

Reviewing the Programmed Sequence .......................................... ....22

Replacing/Adding a Track in a Programmed Sequence ..................... 23

Clearing the Programmed Sequence..................................................23

Using the Cassette Deck............................................................................... 24

Loading a Cassette Tape...........................................................................24

Playing a Cassette Tape............................................................................ 24

Using Consecutive Play.............................................................................25

Recording.................................................................................................. 25

Dubbing Cassette Tapes.............................................. ....... ....... .........25

Copying a CD to a Cassette Tape.......................................................26

Recording from the Tuner or an External Audio Source..................... 27

Timer Re co rd in g..... ................ ................. ........................ ....................28

Microphone Mixing .................................. ................. ........................ .............29

Care and Maintenance................................................................................... 30

CD Care Tips..................... ....................... ........................ ................ .........31

Tape Tips................................................................................................... 31

Erasing a Cassette Tape.....................................................................31

Preventin g Acci d e nt a l Era s u re.............. ................ ........................ ......31

Restoring Tape Tension and Sound Quality........................................32

Cleaning the Tape Handling Parts ......................................................32

Specifications................................................................................................. 33

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PREPARATION

Complete all conn ections be-

Note:

fore connecting to AC power and turning it on .

CONNECTING AN EXTERNAL AUDIO SOURCE

CONNECTING THE SPEAKERS

1. Press the red speaker terminal tab labeled on the back of the system, insert the stripped end of the right speaker’s striped wire into the terminal, then release the tab.

SPEAKER R. Ch

To connect an external audio source (such as a CD player or a cassette deck) to your system, connect the source’s left and right line leve l output jacks to the on the back of your system.

AUX IN R

and L jacks

CONNECTING AN EXTERNAL ANTENNA

You can attach an FM or VHF antenna (not supplied) to the 300 ohm

ANT .

terminals on t he back of t he sys-

tem.

EXT.

2. Press the black speaker terminal tab labeled on the back of the system, insert the stripped end of the right speaker’s other wire into t he te rminal, then release the tab.

3. Repeat Steps 1 and 2 to connect the left speaker to

SPEAKER R. Ch

and

terminals.

SPEAKER L.

If you have an outside VHF TV antenna, you can use a s ignal splitter with a 300-ohm output to connect your stereo system and TV set to the same antenna. Your local Radio Shack store has a wide sel ection of antennas, connectors, and splitters.

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INSTALLING THE REMOTE CONTROL’S BATTERIES

The remote control requires two AA batteries (not supplied) for power. We recommend alkaline batteries, such as Radio Shack Cat. No. 23-

557. Follow these steps to install batter-

ies.

1. Press down and slide the battery compartment cover in the direction of the arrow.

2. Install the batteries as indicated by the polarity symbols ( (

) marked inside the compart-

ment.

) and

3. Replace the cover.

Caution:

the remote control for a month or more, remove its batteries. Weak batteries can leak damaging che micals.

Note:

erratically or does not work, replace both batteries.

If you are n ot going t o use

If the remote control operates

CONNECTING TO POWER

After you complete all connections, plug the music system’s supplied power cord into a standard AC outlet. The STAND BY indicat or lights, and

AM 12:00

CLO

the display (see “Setting the Clock”).

Warning:

the AC power cord plug’s bl ades are polarized and fit a polarized AC outlet only one way. If you have difficulty inserting the plug, do not force it. Turn it over and reinsert it.

and

To prevent electric shock,

appear on

CLO

〈

CLO

〈

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OPERATION

TURNING POWER ON/ OFF

Warning:

VOLUME

set on the system.

Press The STAND BY indicator turns off and the indicator above

TAPE

Notes:

• If the indicator above or time appear on the display.

• If the indicator above appears, the AM or FM station previously selected appears on the display.

To protect your hearing,

MIN

POWER

AUX

, or

AUX

appears, and the

before you turn

to turn on the system .

lights.

CLO

CD, TUNER

CD, TA PE

TUNER

SETTING THE CLOCK

1. If necessary, press and the time appear on

the display

2. Press

on the display.

Note:

ING

onds after you press play . Start again from Step 2.

3. While flashes, repeatedly

press desired hour. If you press and hold down advances continuously.

Note:

you set an AM or PM hour.

4. While flashes, repeatedly

press desired minutes. If you press and hold down minutes advance continuously.

MEMORY

If you do not press

or within 10 sec-

stops flashing o n t he dis-

CLO

TUNING

or PM appears when

CLO

TUNING

DISPLAY

. flashes

CLO

TUN-

〉

MEMORY

to set the

, the hour

〉

to set the

TUNING

〉

, the

5. Press

MEMORY

finish setting the time, or just wait 10 seconds.

again when you

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BASIC OPERATION

Follow these steps to operate your system.

1. Press

CD, TUNER, TAPE

to select the desired audio source.

2. If you select

TUNER

, select the desired station (see “Using the Tuner”).

If you select

CD, TAPE

start the selected audio source (see “Using the CD Changer” or “Using the Cassette Deck”).

3. Adjust

VOLUME

to a comfortable

listening level.

, or

AUX

4. Adjust

BALANCE

until you can hear the sound eq ually from the left and right speakers.

5. Select the desired equalization by pressing

ROCK,

NORMAL, POP,

CLASSIC

(see “Using the Electronic Graphic Equalizer”).

6. Press

E-BASS

to emphasize bass sounds. To return to normal bass sounds, press

E-BASS

again.

7. To turn off the system, press

POWER

so the STAND BY indi-

cator lights.

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USING HEADPHONES

You can use headpho nes (not supplied) to listen in privacy. Insert the headphones’ into the

Notes:

• Your local Radio Shack store sells a wide selection of headphones.

• Connecting headphones automatically disconnects the speakers.

PHONES

/8-inch (3.5 mm) plug

jack.

Listening Safely

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

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

• Set the volume to the lowest setting before you begin listening. After you begin listening, adjust the volume to a comfortable level.

• 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.

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