Optimus CTR-110 User manual

Cat. No. 14-733

OWNER’S MANUAL

Extended Bass AM/FM

Please read before using this equipment.

CTR-110

Cassette Recorder

14-733.fm Page 1 Thursday, July 1, 1999 9:00 AM

FEATURES

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

Your Optimus CTR-110 Extended

Bass AM/FM Cassette Recorder is a

versatile, easy-to-use music system

with many useful features. You can

record live or from the radio, or just

enjoy the radio or cassette player's

high quality sound.

The CTR-110's compact design and

handy carrying handle let you take it

almost anywhere. Its features in-

clude:

Dual-Source Recordin

— lets you

record from the radio or use the built-

in microphone to make a live short-

distance recording.

Automatic Level Control — auto-

matically adjusts the recording level.

One-Touch Recordin

— lets you

start recording quickly and easily.

Soft Cassette Tape E

ect — gently

opens the cassette compartment

cover so the cassette does not pop

out.

PHONE Jack — lets you connect op-

tional earphones so you can listen in

privacy.

Extended Bass Switch — boosts

low frequency sounds.

Three Power Sources — let you

power the CTR-110 from internal

batteries, standard AC power (using

an optional AC adapter), or a vehi-

cle’s DC power (using an optional DC

adapter).

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CONTENTS

Preparation ..................................................................................................... 4

Power Sources .......................................................................................... 4

Using Batteries .................................................................................... 4

Using AC Power .................................................................................. 5

Using Vehicle Power ........................................................................... 5

Using Earphones ....................................................................................... 6

Listening Safely ................................................................................... 6

Traffic Safety ....................................................................................... 7

Radio Operation ............................................................................................. 8

Cassette Pla

er Operation ............................................................................. 9

Loading a Cassette Tape ........................................................................... 9

Playing a Cassette Tape ............................................................................ 9

Recording ................................................................................................ 10

Recording from the Radio ................................................................. 10

Making Live Recordings .................................................................... 10

Tape Tips ................................................................................................. 11

Recommended Tapes ....................................................................... 11

Recording Over or Erasing a Cassette Tape ..................................... 11

Preventing Accidental Erasure .......................................................... 11

Restoring Tape Tension and Sound Quality ...................................... 12

Care and Maintenance ................................................................................. 13

Cleaning the Tape Handling Parts ........................................................... 14

The FCC Wants You to Know .................................................................. 14

Specifications ............................................................................................... 15

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PREPARATION

POWER SOURCES

You can operate the CTR-110 using:

• Internal battery power (using

four C batteries)

• AC power (using an optional AC

adapter)

• Vehicle battery power (using an

optional DC adapter)

Note: Internal batteries automatically

disconnect when you connect an

adapter.

Using Batteries

You can power the CTR-110 from

four C batteries (not supplied). For

the best performance and longest

life, we recommend alkaline batter-

ies, such as RadioShack Cat. No. 23-

551.

1. Turn the CTR-110 on its face,

pull the tabs on the battery com-

partment’s cover and remove

the cover.

2. Put four C batteries in the com-

partment, as indicated by the

polarity symbols (+ and –)

marked inside.

Cautions:

• Use only fresh batteries of the

required size and recom-

mended type.

• Do not mix old and new bat-

teries, different types of bat-

teries (standard, alkaline, or

rechargeable), or recharge-

able batteries of different

capacities.

3. Replace the cover and snap it

shut.

If the CTR-110 does not operate

properly or if the sound weakens or

distorts, replace the batteries.

Cautions:

• Dispose of the old batteries

promptly and properly. Do not

bury or burn them.

• Never leave dead, old, or weak

batteries in the CTR-110. Batter-

ies can leak chemicals that can

destroy electronic parts.

Illustration

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• If you do not plan to use the

CTR-110 from battery power for

a month or more, or if you plan

to use only an adapter, remove

the batteries to protect the CTR-

110 from possible battery leak-

age.

Using AC Power

You can power the CTR-110 from

standard AC power using an optional

AC adapter, such as RadioShack

Cat. No. 273-1663.

Cautions:

• The recommended AC adapter

supplies 6 volts and delivers at

least 400 milliamps. Its center tip

is set to negative, and its plug

correctly fits the CTR-110’s DC

6V jack. Using an AC adapter

that does not meet these specifi-

cations could damage the CTR-

110 or the adapter.

• Always plug the adapter into the

CTR-110 before you plug it into

the AC outlet, and always

unplug the adapter from the AC

outlet before you unplug it from

the CTR-110.

1. Set the AC adapter’s voltage

switch to 6V.

2. Insert the AC adapter’s 5.5 mm

outer diameter/2.1 mm inner

diameter barrel plug into the

adapter cord’s small end so it

reads –TIP, then insert the

adapter’s plug into the DC 6V

jack on the back of the CTR-110.

3. Plug the adapter into a standard

AC outlet.

Using Vehicle Power

You can power the CTR-110 from

your vehicle’s battery using an op-

tional DC adapter, such as Ra-

dioShack Cat. No. 273-1802.

Cautions:

• The recommended DC adapter

supplies 6 volts and delivers at

least 400 milliamps. Its center tip

is set to negative, and its plug

correctly fits the CTR-110’s DC

6V jack. Using a DC adapter that

does not meet these specifica-

tions could damage the CTR-

110 or the adapter.

Illustration

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• Always plug the adapter into the

CTR-110 before you plug it into

the cigarette-lighter socket, and

always unplug the adapter from

the cigarette-lighter socket

before you unplug it from the

CTR-110.

Follow these steps to use your vehi-

cle’s battery.

1. Set the DC adapter’s voltage

switch to 6V.

2. Insert the DC adapter’s barrel

plug into the CTR-110’s DC 6V

jack.

3. Insert the other end of the

adapter into your vehicle’s

cigarette-lighter socket.

USING EARPHONES

For private listening, you can con-

nect a pair of earphones (not sup-

plied) with a 1/8-inch plug. Your local

RadioShack store carries a wide se-

lection of earphones.

Illustration

Insert the earphones’ 1/8-inch plug

into the PHONE jack on the top of the

CTR-110.

Note: Connecting earphones auto-

matically disconnects the built-in

speaker.

Listening Safely

To protect your hearing, follow these

guidelines when you use earphones.

• Set the volume to the lowest set-

ting 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 per-

manent 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.

Illustration

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Traffic Safety

Do not wear earphones while operat-

ing a motor vehicle or riding a bicy-

cle. This can create a traffic hazard

and could be illegal in some areas.

Even though some earphones are

designed to let you hear some out-

side sounds when listening at normal

volume levels, they still can present a

traffic hazard.

14-733.fm Page 7 Thursday, July 1, 1999 9:00 AM

RADIO OPERATION

1. Set FUNCTION to RADIO to turn

on the radio.

2. Set BAND to AM or FM.

3. Rotate the tuning control to

select the desired station.

Notes:

• The AM antenna is built-in. To

improve AM reception, reposi-

tion the CTR-110.

• For the best FM reception,

fully extend the telescoping

antenna and swivel it to the

position that produces the

best reception.

4. Adjust VOLUME MIN/MAX to a

comfortable listening level.

5. Set E-BASS ON/OFF to ON to

boost low frequency sounds. Set

it to OFF for normal bass sound.

6. Set FUNCTION to TAPE to turn

off the radio.

Illustration

14-733.fm Page 8 Thursday, July 1, 1999 9:00 AM

CASSETTE PLAYER OPERATION

LOADING A CASSETTE

TAPE

1. Take up any slack in the tape by

turning the cassette’s hub with a

pencil. If you do not remove

excess slack, the tape could

become tangled in the record/

playback mechanism.

2. Press STOP/EJECT to open the

cassette compartment’s door.

3. Load the cassette with its open

edge facing up, its full reel to the

right, and the desired side

toward you.

4. Gently close the compartment’s

door.

PLAYING A CASSETTE

TAPE

1. Set FUNCTION to TAPE.

2. With a cassette loaded in the

compartment, press PLAY.

Notes:

•Press

PAUSE to temporarily

stop playback. Press PAUSE

again to resume playback.

•Press

FAST-F to fast-for-

ward, or REWIND to

rewind the tape to the desired

location.

Illustration

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3. Adjust VOLUME MIN/MAX to a

comfortable listening level.

4. Set E-BASS ON/OFF to ON to

boost low frequency sounds. Set

it to OFF for normal bass sound.

5. Press STOP/EJECT to stop play-

back before it automatically

stops. Press STOP/EJECT again

to open the cassette compart-

ment and remove the cassette

tape.

RECORDING

You can record from the radio or use

the built-in microphone to make a live

recording.

Caution: Before you load a cassette

tape for recording, be sure its erase-

protection tabs are in place. If you

force down RECORD when a tape

side’s erase-protection tab is miss-

ing, you will damage the record

mechanism (see “Preventing Acci-

dental Erasure” on Page 11).

Notes:

• The CTR-110’s Automatic Level

Control (ALC) automatically

adjusts the recording level. VOL-

UME MIN/MAX has no effect on

recording.

• To record on the other side of

the tape, you must turn it over.

Recording from the Radio

1. Load a blank cassette tape, or

one you want to record over, into

the cassette compartment.

2. Set FUNCTION to RADIO.

3. Set BAND to AM or FM.

4. Adjust TUNING to the station you

want to record.

5. Press RECORD to begin record-

ing. PLAY and RECORD lock

down.

Note: To temporarily stop

recording, press PAUSE. To

resume recording, press PAUSE

again.

6. Press STOP/EJECT to stop

recording.

Making Live Recordings

Follow these steps to make live re-

cordings using the built-in micro-

phone.

1. Load a blank cassette tape, or

one you want to record over, into

the cassette compartment.

2. Set FUNCTION to TAPE.

Illustration

14-733.fm Page 10 Thursday, July 1, 1999 9:00 AM

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