Optimus CD-3790 Manual de usuario

Cat. No. 42-5080

OWNER’S MANUAL

Please read before using this equipment.

CD-3790

Portable Compact Disc Player

with Digital Anti-Shock

42-5080.fm Page 1 Thursday, August 12, 1999 1:25 PM

FEATURES

Your Optimus CD-3790 Portable Com-

pact Disc Player uses the latest digital

audio technology to deliver the clean,

crisp sound of compact discs. You can

connect the CD player to your home au-

dio or autosound system, or connect a

pair of stereo headphones for portable,

private listening.

The CD player’s features include:

ital Anti-Shock S

stem (DAS2) —

rapidly scans 40 seconds of data from

the CD and stores it in memory for unin-

terrupted play with no sound skip, even

when the CD player is exposed to

shocks or vibration. This makes this CD

player excellent for use in your vehicle.

Pro

rammable Pla

— lets you pro-

gram and play up to 24 tracks in any se-

quence you choose.

Extended (E-) Bass S

stem — creates

a fuller bass sound.

ht-Times Oversamplin

with Di

tal Filterin

— 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 distor-

tion.

Illuminated Buttons and Displa

—

when you operate the CD player with an

AC or DC adapter, the buttons and dis-

play light up for easy viewing in the dark.

Supplied CD-to-Cassette Adapter —

lets you connect the CD player directly

to a cassette player in your vehicle.

Carr

Pouch — lets you carry your

CD player on a belt and reduces surface

scratches.

Headphone Jack — lets you connect

your CD player to optional headphones

or speakers.

Line Out Jack and Supplied Y-Cable

— make it easy to connect the CD play-

er to your sound system’s low-level in-

puts.

1-Bit DAC — uses the latest in digital-

to-analog conversion circuitry to accu-

rately reproduce all sound levels with

virtually no distortion.

Automatic Search Music S

stem

(ASMS) — lets you quickly locate and

play any track on a CD.

Audible Search — lets you rapidly play

a CD in either direction to locate a de-

sired section of a track.

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 player.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

42-5080.fm Page 2 Thursday, August 12, 1999 1:25 PM

Cue — lets you cue a track for play at a

later time.

Intro Scan — scans and plays the first

10 seconds of each track, so you can

find a specific track.

Auto Power On/Off — automatically

turns on the CD player when you press

PLAY/PAUSE, and turns it off when you

press STOP/CLEAR or 2 minutes after it

finishes playing, to help preserve battery

life.

Hold — prevents accidentally changing

the CD player’s control settings during

play and preserves battery life by lock-

ing most controls.

Resume — lets you resume listening to

the track that was selected when you

stopped playing a CD.

Three Power Sources — let you power

your CD player from two standard or re-

chargeable nickel-cadmium AA batter-

ies, 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 with-

out removing them from the CD player.

Seven-Hour Battery Life — lets you

play your CD player for up to seven

hours on just two AA batteries.

5- or 3-Inch CD Compatible — lets you

play either size CDs on your CD player.

Important: You need a pair of stereo

headphones, earphones, or amplified

speakers, or a home audio or autosound

system to use your CD player. Your lo-

cal RadioShack store carries a complete

line of headphones, earphones, speak-

ers, and audio systems.

CDs that can be played on this CD play-

er have this mark on them:

The CD player’s advanced technology

makes it simple to operate. But, be sure

you read this Owner’s Manual complete-

ly so you can take advantage of all its

advanced features.

We recommend you record your CD

player’s serial number here. The num-

ber is inside the CD player’s battery

compartment.

Serial Number __________________

42-5080.fm Page 3 Thursday, August 12, 1999 1:25 PM

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 per-

son 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 speci-

fied 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 FCC Rules. These limits

provide reasonable protection against

radio and TV interference in a residential

area. However, your equipment might

cause TV or radio interference even

when it is operating properly. To elimi-

nate interference, you can try one or

more of the following corrective mea-

sures:

• Reorient or relocate the receiving

antenna

• Increase the distance between the

equipment and the radio or TV

• Use outlets on different electrical cir-

cuits for the equipment and the

radio or TV

Consult your local Radio Shack store if

the problem still exists.

42-5080.fm Page 4 Thursday, August 12, 1999 1:25 PM

CONTENTS

Powerin

the CD Pla

er ...................................................................................... 6

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

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

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

Using AC Power .............................................................................................. 9

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

Viewing the Elapsed Time ...................................................................... 14

Turning E-Bass On and Off ........................................................................... 14

Audible Search .............................................................................................. 14

Automatic Search Music System (ASMS) ..................................................... 15

Digital Anti-Shock System (DAS2) ................................................................. 15

Pause/Cue ..................................................................................................... 15

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

Random Play ................................................................................................. 16

Programmed Play .......................................................................................... 16

Intro Scan ...................................................................................................... 17

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

Locking the Controls ...................................................................................... 18

Troubleshootin

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

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

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

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

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

42-5080.fm Page 5 Thursday, August 12, 1999 1:25 PM

POWERING THE CD PLAYER

You can power your CD player from any

of these sources:

• two AA alkaline batteries (not sup-

plied)

• two rechargeable AA nickel-

cadmium batteries (not supplied)

• vehicle battery power using the sup-

plied DC adapter

• standard AC power using an AC

adapter (not supplied)

Note: The CD player senses whether or

not the batteries you install are rechar-

gables, and turns on the charging circuit

or disconnects the batteries accordingly.

USING BATTERIES

You can power your CD player from two

AA alkaline batteries (such as Ra-

dioShack Cat. No. 23-552) or two re-

chargeable AA nickel-cadmium bat-

teries (such as Cat. No. 23-125).

Cautions:

• Always use fresh, or freshly

charged, batteries of the required

size and recommended type.

• Do not mix old and new batteries,

different types of batteries (stan-

dard, alkaline, or rechargeable

nickel-cadmium), or rechargeable

batteries of different capacities.

Follow these steps to install the batter-

ies.

1. Press down on the battery compart-

ment cover and slide it in the direc-

tion of the arrow on the cover, then

lift the cover.

Caution: The battery compartment

cover is attached to the CD player.

Do not try to remove it.

2. Put two AA alkaline batteries or two

AA nickel-cadmium batteries in the

battery compartment, as indicated

by the polarity symbols (+ and –)

marked inside.

Note: Before you use the CD player

with nickel-cadmium batteries, 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).

3. Close the battery compartment

cover.

When flashes on the display, the

sound distorts, or the volume weakens,

replace or recharge the batteries.

42-5080.fm Page 6 Thursday, August 12, 1999 1:25 PM

Cautions:

• If you will not be using the CD player

with battery power for more than a

month, or if you plan to use only AC

or DC power, remove the batteries.

• Dispose of old batteries promptly

and properly.

Recharging Nickel-Cadmium

Batteries

If you connect the supplied DC adapter

(see “Using Vehicle Battery Power” on

Page 8) or an AC adapter (see “Using

AC Power” on Page 9) to the CD player,

you can set the CD player to charge

nickel-cadmium batteries while they are

inside the CD player’s battery compart-

ment.

Cautions:

• Use only the supplied DC adapter or

an AC adapter that meets the speci-

fications in “Using AC Power” on

Page 9 to recharge the batteries in

the CD player. Other adapters could

damage your CD player or the bat-

teries.

• Do not use the CD player or open

the CD compartment cover while

you are charging nickel-cadmium

batteries.

• Nickel-cadmium batteries charge

more efficiently if the temperature is

above 40°F (4.5°C) and below 90°F

(32°C).

Follow these steps to charge nickel-

cadmium batteries in the CD player.

1. Connect an AC adapter or the sup-

plied DC adapter to your CD player

(see “Using AC Power” on Page 9

or “Using Vehicle Battery Power” on

Page 8).

2. With rechargeable batteries in-

stalled and the CD compartment

cover closed, press STOP/CLEAR.

CHG flashes on the display. Then

CHG CHG CHG appears and the CD

player starts to recharge the batter-

ies.

It takes about 3 hours to charge

new or fully discharged nickel-

cadmium batteries. Subsequent

charges take 2–3 hours.

Note: During recharging, the auto

power on/off feature is disabled.

3. When the batteries are fully

charged, the CD player automati-

cally stops charging them and turns

off. Disconnect the AC or DC

adapter.

42-5080.fm Page 7 Thursday, August 12, 1999 1:25 PM

Important: Your CD player is capable of

using nickel-cadmium batteries. At the

end of the batteries’ useful life, they

must be recycled or disposed of proper-

ly. Contact your local, county, or state

hazardous waste management authori-

ties for information on recycling or dis-

posal programs in your area. Some

options that might be available are: mu-

nicipal curbside collection, drop-off box-

es at retailers such as your local

RadioShack store, recycling collection

centers, and mail-back programs.

USING VEHICLEBATTERY

POWER

You can power the CD player from your

vehicle’s battery power with the supplied

DC adapter.

Cautions:

• The supplied DC adapter supplies 6

volts and delivers at least 500 milli-

amps. Its center tip is set to positive,

and its plug correctly fits the CD

player’s DC IN 6V jack. 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.

Follow these steps to connect the CD

player to your vehicle’s battery power.

1. Insert the DC adapter’s barrel plug

into the CD player’s DC IN 6V jack.

2. Make sure the DC adapter’s tip is

screwed in tightly, then plug the DC

adapter’s other end into your vehi-

cle’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.

42-5080.fm Page 8 Thursday, August 12, 1999 1:25 PM

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 cor-

rectly fit the CD player’s DC IN 6V

jack. The recommended adapter

meets these specifications. Using

an adapter that does not meet these

specifications could damage the CD

player or the adapter.

• When you finish using the AC

adapter, unplug it from the AC outlet

first, then disconnect it from the CD

player.

Follow these steps to connect the CD

player to AC power.

1. Insert the AC adapter’s 4.0 mm

outer diameter/1.7 mm inner diame-

ter barrel plug into the adapter’s

cord, setting TIP to + (positive).

2. Set the AC adapter’s voltage switch

to 6V.

3. Insert the AC adapter’s barrel plug

into the CD player’s DC IN 6V jack.

4. Plug the other end of the adapter

into a standard AC outlet.

42-5080.fm Page 9 Thursday, August 12, 1999 1:25 PM

CONNECTIONS

You can listen to your CD player by con-

necting earphones/headphones or am-

plified speakers to the player’s PHONES

jack, or by connecting a home audio or

autosound system to the CD player’s

LINE OUT jack.

Note: If the jacks on your equipment do

not match the plugs on the supplied Y-

cable, check with your local RadioShack

store for the proper cable adapter.

CONNECTING

EARPHONES/

HEADPHONES

For private listening, you can plug a pair

of stereo earphones or headphones with

a 1/8-inch plug (not supplied) into the

PHONES jack on the CD player.

Your local RadioShack carries a wide

variety of earphones and headphones to

use with your CD player.

Listening Safely

To protect your hearing, follow these

guidelines when you use earphones or

headphones.

• Set the volume to the lowest setting

before you begin listening. After you

begin listening, adjust the volume to

a comfortable level.

• Do not listen at extremely high vol-

ume 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 vol-

ume level that does not cause dis-

comfort might still damage your

hearing.

Traffic Safety

Do not wear earphones or headphones

while operating a motor vehicle or riding

a bicycle. This can create a traffic haz-

ard and could be illegal in some areas.

Even though some earphones and

headphones let you hear some outside

sounds when listening at normal volume

levels, they still can present a traffic haz-

ard.

42-5080.fm Page 10 Thursday, August 12, 1999 1:25 PM

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