Optimus CD-3680, CD-3690 User Manual

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Cat. No. 42-5075/42-5076

OWNER’S MANUAL

Please read before using this equipment.

Portable Compact Disc Player

with Digital Anti-Shock

CD-3680 (42-5075) CD-3690 (42-5076)

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FEATURES

Your Optimus CD-3680 (42-5075)/ CD-3690 (42-5076) Portable Compact Disc Player with Digital Anti-Shock uses the latest digital audio technol ogy to give you the clean, c risp sound of compact discs. You can connect the CD player to your home audio or autosound system or connect a pair of stereo earphones for portable , private listening.

The CD player’s features include:

ital Anti-Shock System (DAS2)

— rapidly scans 3 seconds (42-5075) or 10 seconds (42-507 6) of data f rom the CD and stores it in memory for uninterrupted play with no sound skip even when the CD player is exposed to shocks or vibration, making this CD player excellent for use in your vehicle.

ht-Times Oversampling with

ital Filtering

— improves the CD’s sound by multiplying the standard 44.1 kHz sample rate by eight and using a digital filter to reduce or eliminate distortion.

1-Bit DAC

— uses the latest in digitalto-analog conversion circuitry to accurately reproduce all sound levels w ith virtually no distortion.

Automatic Search Music S (ASMS)

— lets you quickly locate and

stem

play any track on a CD.

Audible Search

— lets you rapidly play a CD in either direction to locat e a desired section of a track.

Pro

rammable Pla

— le ts you program and play up to 24 tracks in any sequence you choose.

Repeat Pla

— lets you automatically repeat a single track, an entire CD, or a programmed sequence.

Random Pla

— randomly selects

and plays tracks from the loaded CD.

— lets you cue a track for play at

Cue

a later time.

Intro Scan

— scans and plays the first 10 seconds of each tr ack, so you can find a specific track.

Extended Bass S

stem

— creates a

fuller bass sound.

Auto Power On/Off

— automatically turns on the CD player when you press when you press

PLAY/PAUSE

, and turns it off

STOP/CLEAR

or 2 minutes after it finishes playing, to help preserve battery life.

— prevents accidentally chang-

Hold

ing the CD player’s control settings and preserves battery life by locking most controls.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

All Rights Reserv ed .

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Resume — lets you easily resume listening to the track that was selected when you stopped playing a CD.

Three Power Sources — let you power your CD player from tw o standard or rechargeable nickel-cadmium AA batteries, your vehicle’s battery using the supplied DC adapter, or standard AC power using an optional AC adapter.

Power/Charging Jack — lets you charge nickel-cadmium batteries without removing them from the CD player.

Lighted Buttons and Display —

when you operate the CD player with an AC or DC adapter, the buttons and display light up for easy viewing in the dark.

Supplied CD-to-Cassette Adapter

— lets you connect the CD player di rectly to a cassette player in your home or vehicle.

Important: Y ou need a pair of stereo headphones, earphones , or amplified speakers, or a home audio or autosound system to use your CD player. Your local RadioShack st ore carries a complete line of headphones, earphones, speakers, and audio systems.

CDs that can be played on this CD player have this mark on them:

The CD player’s advanced technol ogy makes it simple to operate. But, be sure you read this Owner’s Manual completely so you can take advantage of all its advanced features.

We recommend you record your CD player’s serial number here. T he num ber is inside the CD player’s battery compartment.

Line Out Jack and Supplied YCable — makes it easy to connect the

CD player to your sound system’s l owlevel inpu ts.

5- or 3-Inch CD Compatible Carrying Pouch (Supplied with 42-

5076 only)

Serial Number __________________

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This CD player is made and tested to meet exacting safety standards. It meets FCC requirements and complies with safety performance standards of the U.S. Department of Health and Human Services.

Warnings:

• This CD player 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.

• The use of controls, adjustments, or procedures other than those specified herein might result in hazardous radiation exposure.

FCC INFORMATION

This equipment complies with the limits for a Class B digital device as specified in Part 15 of limits provide reasonable protection against radio and TV interference in a residential area. However, your CD player 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:

• Increase the distance between the CD player and the radio or TV.

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

Consult your local RadioShack store if the problem still exists.

FCC Rules

. These

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CONTENTS

Powering the CD Player ...................................................................................... 6

Using Batteries ................................................................................................ 6

Recharging Nickel-Cadmium Batteries ..................................................... 7

Using Vehicle Battery Power ........................................................................... 8

Using AC Power .............................................................................................. 8

Connections ....................................................................................................... 10

Connecting Earphones/Headphones . . .......................................................... 10

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

Traffic Safety ........................................................................................... 10

Connecting Amplified Speakers .................................................................... 11

Connecting to a Home Audio System ........................................................... 11

Connecting to an Autosound System ............................................................ 11

Operation ............................................................................................................ 13

Loading a CD ................................................................................................ 13

Playing a CD ................................................................................................. 13

Digital Anti-Shock System (DAS

Automatic Search Music System (ASMS) ..................................................... 14

Locking the Controls ..................................................................................... 15

Viewing the Elapsed Time ............................................................................. 15

Turning E-Bass On and Off ........................................................................... 15

Audible Search .............................................................................................. 16

Pause/Cue .................................................................................................... 16

Intro Scan ...................................................................................................... 16

Repeat Play .................................................................................................. 16

Random Play ................................................................................................ 17

Programmed Play ......................................................................................... 17

Resume ......................................................................................................... 18

) ................................................................ 14

Troubleshootin

Care and Maintenance ...................................................................................... 20

Replacing the DC Adapter’s Fuse ................................................................. 21

CD Care Tips ................................................................................................ 21

Specifications .................................................................................................... 22

................................................................................................ 19

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POWERING THE CD PLAYER

You can power your CD player from any of these sources:

• Two AA alkaline batteries (not supplied)

• Two rechargeable AA nickelcadmium batteries (not supplied)

• Vehicle battery power using the supplied DC adapter

• Standard AC power using an AC adapter (not supplied)

Connecting an AC or DC adapt-

Note:

er to the CD player with non-rechargeable batteries installed disconnects the batteries.

USING BATTERIES

You can power your CD player from two AA alkaline batteries (such as RadioShack Cat. No. 23-552) or two rechargeable AA nickel-cadmium batteries (such as Cat. No. 23-125).

Cautions

• Always use fresh, or freshly

• Do not mix old and new batteries,

charged, batteries of the required size and type.

different types of batteries (standard, alkaline, or rechargeable nickel-cadmium), or rechargeable batteries of different capacities.

1. Press down on the battery com-

2. Put two AA alkaline batteries or

3. Close the battery compartment

If flashes on the display, the sound distorts, or the volume weakens, replace or recharge the batteries.

partment cover and slide it in the direction of the arrow on the cover , then lift the cover.

Caution:

ment cover is a ttached to the CD player. Do not try to remove it.

two AA nickel-cadmium batteries in the battery compartment, as indicated by the polarity symbols (+ and –) marked inside.

Note

play er wi th n ick el-ca dmi um b att eries, you need to charge them, either in an external battery charger (such as Cat. No. 23-134) or in the CD player (see “Recharging Nickel-Cadmium Batteries” on Page 7).

cover.

The battery compart-

: Before you use the CD

Follow these steps to install the batteries.

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Cautions:

• If you will not be using the CD player with battery power for several months, remove the batteries.

• Dispose of old b atteries promptly and properly.

Recharging Nickel-Cadmium Batteries

If you connect the supplied DC adapt er (see “Using Vehicle B attery Power” on Page 8) or an AC adapter (see “Using AC Power” on Page 8) to the CD player, you can set the CD player to charge nickel-cadmium batteries while they are inside the CD player’s battery compartment.

Cautions:

• Use only the supplied DC adapter or an AC adapter that meets the specifications in “Using AC Power” on Page 8 to recharge t he b at ter ie s in the CD player. Other adapters could damage your CD player or the batteries.

• Do not use the CD player or open the CD compartment cover while you are charging nickel-cadmium batteries.

Follow these steps to charge nickelcadmium batteries in the CD player.

1. Connect an AC adapter or the supplied DC adapter to your CD player (see “Using AC Power” on Page 8 or “Using Vehicle Battery Power” on Page 8).

2. With rechargeable batteries installed and the CD compartment cover closed, press

CHG

flashes on the display. Then

CHG CHG CHG

CD player starts to recharge the batteries.

It takes about 3 hours to charge new or fully discharged nickelcadmium batteries. Subsequent charges take 2–3 hours.

3. When the batteries are fully charged, the CD player automatically stops charging them and turns itself off. Disconnect the AC or DC adapter.

STOP/CLEAR

appears and the

• Nickel-cadmium batteries charge more efficiently if the temperature is above 40°F (4.5°C) and below 90°F (32°C).

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Important: Your CD player is capable of using nickel-cadmium batteries. At the end of the batteries’ useful life, they must be recycled or dispos ed of properly. Contact your local, county, or state hazardous waste management authorities for information on recycling or disposal programs in your area. Some options that might be available are: municipal curbside collection, drop-off boxes at retailers such as your local RadioShack store, recycling collection centers, and mail back programs.

USING VEHICLE BATTERY POWER

You can power your CD player from your vehicle’s cigarette-lighter socket with the supplied DC adapter.

Cautions:

• The supplied DC ada pter suppli es 6 volts and delivers at least 500 milliamps. Its center tip is set to positive, and its pl ug correctly fits the CD player’s Using a DC adapter that does not meet these specifications could damage the CD player or the DC adapter.

• When you finish using the CD player, always unplug the DC adapter from the cigarette-lighter socket before you disconnect it from your CD player.

DC IN 6V

jack.

Follow these steps to connect the cigarette-lighter socket to the CD player.

1. Insert the DC adapter’s barrel plug into the CD pl ayer’s jack.

2. Make sure the DC adapter ’s tip is securely attached, then plug the DC adapter’s other end i nto your vehicle’s cigarette-lighter socket.

Note: If the CD player does not operate when you use the DC adapter, unplug the cord from the cigarette-lighter socket and clean any ashes or debris from the socket.

DC IN 6V

USING AC POWER

You can power the CD player from a standard AC outlet using an optional AC adapter such as Cat. No. 273-

1664.

Cautions:

• You must use an AC adapter that supplies 6 volts and delivers at least 500 milliamps. Its center tip must be set to positive, and its plug must correctly fit the CD player’s

DC IN 6V

jack. The recom-

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