Optimus CD-3520 User Manual

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Portable Compact Disc Player

Cat. No. 42-5065

OWNER’S MANUAL

Please read before using this equipment.

CD-3520

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FEATURES

Your Optimus CD-3520 Portable
Compact Disc Player uses the latest
digital audio technology to give you
the clean, crisp sound of compact
discs. You can connect the CD player
to your home audio or car stereo sys­tem or connect a pair of stereo ear­phones for portable, private listening.

The CD player’s features include:

1-Bit DAC

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

Built-In Batter

Charger

— recharg­es the batteries inside the player when
you use rechargeable nicke l-cadmium
battery packs.

Automatic Search Music S
(ASMS)

— let s y ou quickl y locate an d

stem

play any track on a CD.

Audible Search

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

Pro

rammable Pla

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

Repeat Pla

— let s y ou automatically
repeat a single track , an entire CD, or
a programmed sequence.

— lets you play the

Random Pla

tracks on a CD in random order.

Pause/Cue

— lets you temporarily
stop play, or cue a track for play at a
later time.

Intro Scan

— helps you locate a de­sired track by automatically playing
the first 10 seconds of each track on
the CD.

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

STOP

and turns it off

or when it fin-

ishes playing all the tracks.

— prevents accidentally chang-

Hold

ing the CD player’s control settings
and preserves battery life by locking
all controls (except

OPEN

) when you

turn off the CD player.

Three Power Sources

— let you
power your CD player from four AA
batteries or two rechargeable nickel­cadmium battery packs, standard AC
power (with an op tional AC adapter),
or your vehicle’s battery (with an op­tional DC adapter).

5- or 3-Inch CD Compatible

© 1996 Tandy Corporation.

Optimus is a registered trademark used by Tandy Corporation.

RadioShack is a trademark used by Tandy Cor poration.

All Rights Reserv ed .

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Important: You need a pair of stereo
earphones or amplified speak ers or a
home audio or car stereo system to
use your CD-3520. Your local Ra­dioShack store carries a complete line
of earphones, speakers, and audio
systems.

The CD player’s advanced technolo gy
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 the CD
player’s serial number here. T he num ­ber is on the back panel.

Serial Number __________________

CDs that can be played on this p layer
have this mark on them:

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CONTENTS

Choosing a Power Source .................................................................................. 5

Using Batteries ................................................................................................ 5

Installing Batteries ..................................................................................... 5

Charging Nickel-Cadmium Battery Packs ................................................. 6

Charging Tips ............................................................................................ 6

Using AC Power .............................................................................................. 7

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

Connections ......................................................................................................... 9

Connecting Earphones ............... ..................................................................... 9

Listening Safely ......................................................................................... 9

Traffic Safety ............................................................................................. 9

Connecting Amplified Speakers .................................................................... 10

Connecting to a Home Audio System ... ......................................................... 10

Connecting to an Auto Sound System ........................................................... 10

Operation ............................................................................................................ 12

Playing a CD .................................................................................................. 12

Locking the Controls ...................................................................................... 13

Audible Search .............................................................................................. 13

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

Pause and Cue .............................................................................................. 14

Intro Scan ...................................................................................................... 14

Repeat Play .. ...................................................................... . .......................... 15

Random Play ........................................................................... ...................... 15

Programmed Play .......................................................................................... 15

Troubleshootin

Care and Maintenance ....................................................................................... 18

CD Care Tips ................................................................................................. 19

FCC Inform ation ............................................................................................ 19

Laser Safety .................................................................................................. 19

Specifica tions ..................................................................................................... 20

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................................................................................................. 17

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CHOOSING A POWER SOURCE

You can power your CD player from:

• Four AA alkaline batteries or two
rechargeable nickel-cadmium bat­tery packs (none supplied)

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

• A vehicle’s battery power, using a
DC adapter (not supplied)

USING BATTERIES

You can power your CD player from
four AA alkaline batteries (such as Ra­dioShack Cat. No. 23-552) or two re­chargeable nickel-cadmium battery
packs (Cat. No. RSU 11377181, avail­able through your local RadioShack
store). The CD player can recharge
the nickel-cadmium battery packs
while they are in the CD player.

Installing Batteries

2. Place four AA batteries or two
rechargeable nickel-cadm ium bat­tery packs in the compartment as
indicated by the polarity symbols
(+ and –) marked on the bottom of
the CD player.

Cautions:

• Use only batteries of the

required size and type.

• Never mix fresh and old batter-

ies, alkaline and nickel­cadmium battery packs, or
nickel-cadmium batteries of dif­ferent capacities.

• If you do not plan to use the CD

player for a month or more,
remove and store the batteries.

3. Close the battery compartment
cover.

Replace or recharge the batteries
when flashes on the d isplay, the
sound distorts, or the volume weak­ens.

1. Slide the battery compartment
cover in the direction o f the arrow,
then lift it open.

Cautions:

• Always dispose of old batteries
promptly and properly.

• Never heat, disassemble, or throw
batteries into a fire.

• Never leave dead, old, or weak
batteries in the CD player. Batter­ies can leak chemicals that cor­rode or damage electronic
circuits.

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Charging Nickel-Cadmium
Battery Packs

Nickel-cadmium battery packs come
fully discharged. You can charge the
special-order batteries while they are
in the battery compartment using an
AC adapter (such as Cat. No. 273­1664, not supplied) or DC adapter
(such as Cat. No. 273-1801, not sup­plied).

Warnin

rechargeable batteries. The batteries
can become very hot and possibly ex­plode.

Follow these steps to recharge nickel­cadmium battery packs whil e they are
in the battery compartment.

1. Connect an AC or DC adapter.

Do not try to charge non-

:

See “Using AC Power” on Page 7
or “Using Vehicle Battery Power”
on Page 8.

Notes:

• It takes about 15 hours to
charge fully discharged nickel­cadmium batteries.

• You can play a CD while
recharging the batteries; how­ever, this could cause the bat­teries to recharge more slowly.

Charging Tips

• Always keep the charging termi­nals clean. Use a cotton swab
dipped in alcohol to clean the ter­minals.

• Under normal usage conditions,
the nickel-cadmium battery packs
can be recharged about 500
times.

• Fully discharge the bat tery pack s
occasionally by playing the CD
player until it no longer plays.
Then fully recharge the battery
packs. This he lps restore the bat­tery packs’ full charging capacity.

• Avoid charging the batteries in a
hot environment (more than
113°F) as this can permanently
reduce the battery packs’ charg­ing capacity.

• Do not overcharge the battery
packs. Overcharging can severely
reduce the battery packs’ useful
life.

• Do not short-circuit the battery
packs’ terminals (+ and –).

2. When the nickel-cadmium battery
packs fully charge, unplug the
adapter from the AC outlet or ci g­arette lighter socket, then discon­nect the adapter from the CD
player.

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Important: T his portable CD player is
capable of using rechargeable nickel­cadmium battery pa cks. At the end of
the battery packs’ useful life, they
must be recycled or disposed of pro p­erly. 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 curb-side collection,
drop-off boxes at retailers, recycling
collection centers, and mail-back pro­grams.

USING AC POWER

You can power the CD play er from a
standard AC outlet using an AC
adapter, such as Cat. No. 273-1664
(not supplied).

Cautions:

• You must use an AC ada pter that
supplies 6 volts and delivers at
least 550 milliam ps. Its center tip
must be set to positive, and its
plug must correctly fit the CD
player’s
mended adapter meets these
specifications. Using an adapter
that does not meet these specifi­cations could damage the CD
player or the adapter.

DC IN 6V

jack. The recom-

Follow these steps to use an AC
adapter.

DC IN 6V

1. Attach the 4.0 mm outer diameter/

1.7 mm inner diameter barrel plug
to the adapter cord, matching the
positive (+) on the plug with TIP
on the cord.

2. Set the adapter’s voltage switch to
6V.

3. Insert the adapter’s barrel plug
into the CD player’s

DC IN 6V

jack.

Note: Battery power disconnects
when you connec t an AC adapter
to the CD player (unless you are
using nickel-cadmium battery
packs).

4. Plug the other end of the adapter
into a standard AC outlet.

• When you finish using the AC
adapter, disconnect it f rom the AC
outlet first, then unplug it from the
CD player.

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USING VEHIC LE
BATTERY POWER

You can power your CD player from
your vehicle’s battery using a DC
adapter, such as Cat. No. 273-1801
(not supplied).

Cautions:

• You must use a DC adapter that
supplies 6 volts and delivers at
least 550 milliam ps. Its center tip
must be set to positive, and its
plug must correctly fit the CD
player’s
mended adapter meets these
specifications. Using an adapter
that does not meet these specifi­cations can damage the CD
player or the adapter.

• Disconnect the adapter from the
cigarette-lighter socket when you
are not using it to prevent the
vehicle’s battery from being
drained.

• Always disconnect the adapter
from the cigarette-lighter socket
before you unplug it from the CD
player.

DC IN 6V

jack. The recom-

Follow these steps to use your vehi­cle’s battery power.

DC IN 6V

1. Attach the 4.0 mm outer diameter/

1.7 mm inner diameter barrel plug
to the adapter cord, matching the
positive (+) on the plug with TIP
on the cord.

2. Set the adapter’s voltage switch to
6V.

3. Insert the adapter’s barrel plug
into the CD player’s

Note:

Battery power disconnects
when you connect a DC adapter
to the CD player (unless you are
using nickel-cadmium battery
packs).

4. Plug the other end of the adapter
into your vehicle’s cigarette-lighter
socket.

DC IN 6V

jack.

• If you park your vehicle in the sun,
temperatures inside can easily
reach levels that could damage
your CD player and your CDs. To
prevent heat damage, avoid leav­ing your CD player or CDs in your
vehicle.

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