Optimus SYSTEM 734 User Manual

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Mini Stereo Component System

Dual Hi-Speed Dubbing Cassette Deck

Cat. No. 13-1279

OWNER’S MANUAL

Please read before using this equipment.

SYSTEM 734

with 3-Disc Automatic CD Changer

AM/FM Stereo

3 Preset Equalizer Controls

15-Watts Per Channel Amplifier

2-Way Speaker System

Electronic Volume Control

Clock

On/Off Timer

and Remote Control

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FEATURES

Your Optimus System 734 Mini Stereo Component System offe rs, in one attractive package, all of the versatile features that you need for excellent stereo sound and entertainment. The System 734 includes a 3-disc automatic CD changer, AM/FM stereo tuner, dual hi-speed dubbing cas sette deck, speakers, and a remote control, as well as three preset equalizer controls. The built-in 15 watts-pe r-channel amplifier produces crisp, clear sound even at high volume.

CD CHANGER FEATURES

3-Disc Automatic CD Chan

— lets you load up to three CDs a t once and automatically play them one after another.

Automatic Search Music S (ASMS)

— let s y ou quic kl y locate a nd

stem

play any track on a CD.

Audible Search

— helps you locate a particular section of a CD by rapidly playing it in either direction.

Direct Selection Pla

— lets you select and play any track from the loaded CDs.

Random Pla

— lets you set the System 734 to automatically play the tracks on all CDs in random order.

Repeat Pla

— lets you automatica lly repeat a single track, all tracks on a CD, or a programmed sequence of tracks.

3- and 5-Inch CD Compatible

— lets

you play either 3- or 5-inch CDs.

CASSETTE DECK FEATURES

Continuous Pla

— lets you automatically play one side each of two cassette tapes, one after the other.

Multiple Source Recordin

— lets you record onto a cass ette tape from the CD changer, radio, another cassette tape, or from an external audio source.

Automatic Level Control (ALC)

— automatically adjusts the recording level.

h Speed Dubbin

— lets you set the System 734 to record cassette tapes at one and a half times the normal speed.

Pro

rammable Pla

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

Auto-Stop

cassette tape when it fini shes playing or recording to protect the tape and

— automatically stops the

tape-handling parts.

Radio Shack and Optimus are registered trademarks used by Tandy Corporation.

All Rights Reserv ed .

CAUTION

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Soft Cassette Tape Eject — slowly opens the cassette com partment do or when you press the eject button, so the tape does not pop out.

OTHER SPECIAL FEATURES Digital Sy nthesi zed Tuning — elimi-

nates tuning drift by locking the tuner on the selected frequency.

Memory Tuning — lets you store and easily recall up to 32 of your favorite radio stations (8 AM and 24 FM).

Remote Control — lets you control most of the System 734’s functions from a distance.

Easy-to-Read Display — clearly displays your syst em’s indica tors for easy viewing in almost any lighting condition.

Extended Bass (E-BASS) — lets you emphasize the low-bass sounds during low-volume liste ning.

Auxiliary Input Jacks — let you connect an additional audi o source, such as a TV, VCR, turntable, or an external CD changer or cassette deck, to your system.

Note: The remote control requires two AA batteries (not supplied) for power.

Warning: This CD changer 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 t his product to rain or moisture.

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

Three Preset Equalizer Settings —

provide you with common sound s ettings for enhancing rock , pop, or classical music at the press of a button.

Digital Clock — gives you a digital time display even when the System 734 is turned off.

On/Off Timer — lets you set the Sys tem 734 to automat ically turn itself on and off at preset times.

This symbol is intended to alert you to the p r es en c e o f un in su lated d an gerous voltage within the product’s enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product’s case.

This symbol is intended to inform you that important operating and

maintenance instructions are included in the literature accompanying this product.

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Read this manual carefully. It will help you get the most enjoyment from your System 734.

For your records, we urge you to record the serial number of your System 734 in the space below. The serial number is located on the back of the system.

Serial Number __________________ Note: CDs that can be played on this

changer have this mark on them:

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.

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TABLE OF CONTENTS

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

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

Connecting the Antennas ................................................................................ 7

Connecting an Additional Audio Source ......................................................... 7

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

Setting the Current Time ................................................................................. 8

Installing Batteries in the Remote Control ....................................................... 9

Connecting Headphones .............................................................................. 10

Listening Safely ...................................................................................... 10

Basic Operation ................................................................................................. 11

Using the Remote Control ............................................................................. 11

Turning On/Off the System ........................................................................... 11

Setting the Sound ......................................................................................... 11

Adjusting the Volume .............................................................................. 11

Using Extended Bass (E-Bass) ...................................................... ....... . 12

Changing the Preset Equalizer Settings ................................................. 12

Setting The On/Off Timer .............................................................................. 13

Radio Operation ................................................................................................. 15

Listening to the Radio ................................................................................... 15

Using Memory Tuning ................................................................................... 16

Storing a Station in Memory ................................................................... 16

Recalling a Stored Station ...................................................................... 17

CD Chan

Loading and Playing a CD ............................................................................ 18

Special CD Changer Features ...................................................................... 20

Programmed Play ......................................................................................... 23

CD and CD Changer Care Tips ......................................... ..... .. ..... ..... .. ..... .. . 26

er Operation ...................................................................................... 18

Loading/Unloading CDs during Play ....................................................... 20

Automatic Search Music System (ASMS) .............................................. 20

Audible Search ....................................................................................... 21

Random Play .......................................................................................... 21

INTRO Scanning .................................................................................... 22

Repeat Play ............................................................................................ 22

Cue ......................................................................................................... 23

Storing/Playing a Programmed Sequence ............................................. 23

Reviewing a Programmed Sequence ..................................................... 25

Erasing a Programmed Sequence ......................................................... 25

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Cassette Deck Operation .................................................................................. 27

Loading a Tape .............................................................................................. 27

Playing a Tape ............................................................................................... 27

Consecutive Play .................................................................................... 28

Recording a Cassette Tape ........................................................................... 29

Recording from a CD .............................................................................. 29

Copying Cassette Tapes .. ....................................................................... 30

Recording from the R adio ....................................................................... 31

Tape Tips ....................................................................................................... 32

Erasing a Cassette Tape ......................................................................... 32

Preventing Accidental Erasure ................................................................ 32

Restoring Tape Tensi on and Sound Quali ty ............................................ 33

Using an Additional Au dio Source ................................................................... 34

Listening to an Additional Audio Source ........................................................ 34

Recording from an Additional Audio Source .................................................. 34

Tro ubleshooting ................................................................................................. 36

Care and Maintenance ....................................................................................... 37

The FCC Wants You to Know ........................................................................ 38

Cleaning the Tape-Handling Parts ................................................. ....... ....... .. 38

Specifications ..................................................................................................... 39

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PREPARATION

Important:

• Complete all connections to the System 734 before you c onnect it to power.

• Be sure to follow all of the installation instructions described in the enclosed “Safety Instructions.”

CONNECTING THE SPEAKERS

1. Press open the pair of terminal tabs marked the back of the main System 734, then insert the right speaker’s striped wire into the red ( nal and its solid wire into the black

–

(

) terminal. Then release the

tabs.

SPEAKERS/ + R –

) ter mi-

CONNECTING THE ANTENNAS

To connect the supplied AM and FM antennas, press open the pair of terminal tabs marked insert the stripped end of the AM or FM antenna’s wires into the terminals. Release the tabs to close them.

or FM

(75W)

, then

CONNECTING AN ADDITIONAL AUDIO SOURCE

Caution:

system and speakers, never let the speaker wire’s bare ends touch each other.

2. Repeat Step 1 to connect the left speaker’s wires to the terminal tabs marked

To avoid damaging your

SPEAKERS/ – L +

To connect an additional audi o sourc e to your System 734, such as a TV, VCR, CD changer or cassette deck, plug the audio source’s left and right line le vel audio wi res into

and

(right).

AUX L

(left )

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Notes:

• See “Using an Additional Audio Source” to operate an external audio source with the System 734.

• If you connect a turntable to the System 734, the turntable must have a built-in equalizer amplifier.

CONNECTING POWER

To connect power after making all other connections, plug your system’s AC cord into a standard AC outlet. The last known time flashes on the display.

SETTING THE CURRENT TIME

1. Press and hold seconds. The hour digit(s) flash.

2. To increase o r decrease the hour setting, within 5 seconds press

TUNING UP TUNING

trol.

CLOCK

DOWN

or t on the remote con-

for about 2

PRESET/

, or

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

Notes:

• To rapidly i ncrease or dec rease

the hour setting, press and hol d

TUNING UP SET/TUNING

remote control.

• When changing the hour, be

sure to set it to the correct AM or PM hour, so appears on the display.

DOWN

s or t on the

, or

PRE-

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• If the hour digit stops flashing before you finish setting the hour, start again from Step 1.

3. Press flash.

4. To increa se or decrease the minutes setting, press or UP, or the remote co ntrol.

Notes:

• To rapidly in crease or de crease

• If the minute digits stop flashing

CLOCK

the minute setting, press and hold

PRESET/TUNING

remote control.

before you finish setting the minutes, repeat Steps 1, 3, and

. The minute digits

TUNING DOWN

PRESET/TUNING

TUNING UP

s or t on the

s or t on

DOWN

, or

• The time appears cons tantly while the System 734 is turned off. To display the time at any time while the system is turned on, simply press briefly appears.

CLOCK

. The current time

INSTALLING BATTERIES IN THE REMOTE CONTROL

The remote control requires two AA batteries (not supplied) for power. For the best performance and longes t life, we recommend alkaline batteries, such as Radio Shack Cat. No. 23-552.

Caution:

the required size and type.

1. To open the battery compartment

Always use fresh batteries of

cover, press the tab on the cover in the direction of the arrow, then lift the cover away from the compartment.

5. Press clock.

Notes:

• When power is disconnected or interrupted then restored, the last known time flashes on the display. If this happens, reset the time.

CLOCK

again to start the

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2. Insert the batteries into the compartment as indicated by the polarity symbols (+ and –) ma rked inside.

3. Replace the cover.

Notes:

• If you will not be using the remote control for a month or more, remove the batteries.

• You can use the remote control up to a distance of about 20 feet (6 meters), from an angle of up to 60° in front of the System 734. If it does not operate properly within this range, replace the batteries.

Warning: Always dispose of old batteries promptly and properly.

CONNECTING HEADPHONES

To listen without disturbing others, you can connect a p air o f reo headphones (not supplied) to the System 734. Y our local Radio Shack store sells a wide selection of stereo headphones.

/4-inch plug ste-

To connect headphones, plug the headphone’s

PHONES

/4-inch plug into the

jack on the front of the Sys-

tem 734.

Note: Connecting headphones automatically disconnects the System 734’s speakers.

Listening Safely

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

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

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BASIC OPERATION

Important:

age, set the volume to its minimum level before turning on the system (see “Setting the Sound”).

To prevent hearing dam-

USING THE REMOTE CONTROL

The remote control communicates with your system through a remote sensor located on the left of the system’s display. To use the remote control, be sure that the front end of it is pointing with a clear path toward the system’s display, then press the desired button(s).

TURNING ON/OFF THE SYSTEM

Press

734. All of the system’s display characters appear from left to right, then t he last selected settings appear.

To turn off the system, press again. All of the system’s display characters appear at once, t hen disappear from right to left. Then the current time appears and remains on the display.

POWER

to turn on the System

POWER

SETTING THE SOUND

Note:

unit and the remote control operate the same system function. You can use either control to operate the System 734.

Caution:

or the sensor on the main system to direct sunlight or strong lights, such as a spotlight, will reduce its operating d istance and can make it inoperative.

Several controls on the main

Exposing the remote control

Adjusting the Volume

To increase the system’s volume, turn

VOLUME UME

crease the volume, turn towards the remote control.

towards UP, or press

s on the remote control. To de-

DOWN

, or press

VOLUME

VOL-

VOLUME

t on

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Each time you increase or decrease the volume, the curren t volume setting , measured in decibels (dB), appears on the display. You can adjust the volume anywhere from –68 dB (low) to 0 dB (high).

To return to normal bass sound, press it again so the button clicks and pops out.

Changing the Preset Equalizer Settin gs

Important: To prevent hearing dam-

age, set the volume to its minimum level before playing the radio, a CD or cassette tape, or an external audio source.

Note: To turn off the sound tempo rarily, press pears next to resume listening, press

MUTE

. A red indicator ap-

MUTE

on the display. To

MUTE

again so

the indicator tur n s o ff.

Using Extended Bass (E-Bass)

To enhance the System 734’s bass sound, press tem. The button clicks and locks in.

E-BASS

on the main sys-

You can adjust the balance of the System 734’s sound frequencies using one of its three preset equalizer (sound balance) settings. These settings are designed to give you the best sound for rock, pop, or class ical musical selections.

Each time you turn it on, the System 734 automatically uses the l ast sele cted equalizer setting. To change the setting, press

ROCK, POP

or repeatedly press

EQ PRESET

, or

CLASSIC

on the remote control. The selected button lights up, and appears next to

ROCK, POP

, or

CLASSIC

on the dis-

play.

To cancel the selected setting, press the selected button or press

SET

on the remote control until the se-

EQ PRE-

lected button turns off on the main system.

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SETTING THE ON/OFF TIMER

You can set the Sys tem 734 to automatically turn itself on, play the l ast selected radio station, CD, or cassette tape, then turn itself off again.

Notes

• To rapidly increase the hour or minutes settings when setting the on/off times, simply press and

TUNING UP

hold

SET/TUNING

s or t on the re mote

control.

• When changing the hour setting, be sure to set it to the correct AM or PM hour.

• If the hour or minute digits stop flashing before you finish setting them, start again from Step 1.

1. Press and hold remote control until last set on-time appear on the display . The hour digits flash.

DOWN

TIMER SET

and the

PRE-

, or

on the

2. To increase or decrease the ontime hour setting, within 5 seconds press

PRESET/TUNING

TUNING UP

s or t on the

DOWN

remote control.

3. Press

TIMER SET

again. The

minute digits flash.

4. To increase or decrease the ontime minutes setting, within 5 seconds press

PRESET/TUNING

TUNING UP

s or t on the

DOWN

remote control.

5. Press

TIMER SET

again.

OFF

and the last set off-time app ear on t he display. The hour digit(s) flash.

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6. To increase or decrease the offtime hour setting, within 5 seconds press

PRESET/TUNING

TUNING UP

s or t on the

DOWN

remote control.

7. Press

TIMER SET

again. The

minute digits flash.

8. To increase or decrease the offtime minutes setting, within 5 seconds press

PRESET/TUNING

TUNING UP

s or t on the

DOWN

remote control.

9. Press

TIMER SET

again. The last set volume level appears on the display. Adjust

VOLUME

to set the

volume to the desired level.

10. Press

TIMER SET

again to end programming and turn on the timer. A clock symbol appears on the display to indicate that the timer is on.

To turn th e time r on o r o ff at

Note

any time after setting it, press

TIMER ON/OFF

on the remote control so the clock symbol appears or disappears.

11. Select the desired radio st ation or CD you want the System 734 to

play when it turns itself on (see “Radio Operation” or “CD Changer Operation”).

: If you selected a cassette

Note

tape, be sure to press

PAUSE

on the appropriate deck

(TAPE 1 or 2) (see “Cassette

Deck Operation”).

12. Select the desired equalizer settings.

13. Press

POWER

to tur n off the System 734. The current time an d the clock symbol appear dimly lit on the display.

Notes:

• If you selected a cassette tape,

be sure to release the selected deck after you turn off the system.

• Until you turn off the timer, the

System 734 automatically turns itself on eve ry day at t he pres et time and plays t he l ast select ed radio station, cassette tape, or CD. If no CD is loaded in the last selected CD position, the system automatically selects the next highest numbered CD.

PLAY

E-BASS

PAUSE

and

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