Optimus CTR-108 Bedienungsanleitung

Cat. No. 14-1115

OWNER’S MANUAL

Please read before using this equipment.

CTR-108

AC•DC Portable

Cassette Recorder

14-1115.fm Page 1 Friday, January 8, 1999 10:31 AM

FEATURES

Your Optimus CTR-108 AC•DC Porta-

ble Cassette Recorder is a multi-func-

tion recorder. Easy to use and reliable,

it is ideal for both personal and busi-

ness use. Its features include:

Automatic Stop — protects the tape

and tape handling parts by automati-

cally stopping the tape when it reaches

the end.

Built-In Condenser Microphone —

gives you high sensitivity for recording

speakers from several feet away, such

as at conferences.

MIC Jack — lets you connect an op-

tional external microphone to record

from longer distances.

Automatic Level Control (ALC) Cir-

cuit — automatically ensures the

proper recording level.

Record Indicator — lights steadily to

confirm you are recording.

Three Power Sources — let you pow-

er the recorder from four C batteries,

standard AC power (with the supplied

power cord), or vehicle DC power (with

an optional DC adapter).

AUX Jack — lets you connect an ex-

ternal sound source so you can record

directly from it.

Supplied Earphone — lets you listen

to the recorder without disturbing oth-

ers.

Built-In Carrying Handle — lets you

easily carry the cassette recorder any-

where you go.

Supplied Erase Plug — makes eras-

ing a cassette tape easy.

This symbol is intended to alert you

to the presence of uninsulated dan-

gerous voltage within the system’s

enclosure that might be of sufficient

magnitude to constitute a risk of elec-

tric shock. Do not open the system’s

case.

This symbol is intended to informyou

that important operating and mainte-

nance instructions are included in the

literature accompanying this system.

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION: TO REDUCE THE RISK OF

ELECTRIC SHOCK, DO NOT REMOVE

COVER OR BACK. NO USER-SERVICE-

ABLE PARTS INSIDE. REFER SERVIC-

ING TO QUALIFIED PERSONNEL.

Warning: To prevent fire or shock

hazard, do not expose this product

to rain or moisture.

CAUTION

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

14-1115.fm Page 2 Friday, January 8, 1999 10:31 AM

CONTENTS

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

Connecting Power.............................................................................................4

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

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

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

Using an Earphone...........................................................................................6

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

Traffic Safety...............................................................................................6

Operation................................................................................................................7

Loading a Cassette Tape ..................................................................................7

Playing a Cassette Tape....................................................................................7

Recording..........................................................................................................8

Using the Built-In Microphone ....................................................................8

Using an External Microphone ...................................................................8

Recording from a Connected Audio Source...............................................9

Tape Tips.........................................................................................................10

Recommended Tapes...............................................................................10

Erasing a Cassette Tape...........................................................................10

Preventing Accidental Erasure .................................................................10

Restoring Tape Tension and Sound Quality..............................................11

Maintenance.........................................................................................................12

Cleaning the Tape-Handling Parts ..................................................................13

Specifications ......................................................................................................14

14-1115.fm Page 3 Friday, January 8, 1999 10:31 AM

PREPARATION

CONNECTING POWER

You can power the CTR-108 from any

of three power sources:

• Internal batteries

• Standard AC power (with the sup-

plied power cord)

• Your vehicle’s cigarette-lighter

socket (with an optional DC

adapter)

Note: Connecting an AC power cord or

a DC adapter disconnects the internal

batteries.

Using Internal Batteries

You can power the CTR-108 from four

C batteries (not supplied). For the best

performance, we recommend alkaline

batteries, such as RadioShack Cat.

No. 23-551/651.

1. Press down on the battery com-

partment cover and slide it off in

the direction of the arrow.

2. Install the batteries as indicated

by the polarity symbols (+ and –)

marked inside the compartment.

Cautions:

• Use only fresh batteries of the

required size and recom-

mended type.

• Do not mix old and new batter-

ies, different types of batteries

(standard, alkaline, or re-

chargeable), or rechargeable

batteries of different capacities.

3. Replace the cover.

When the RECORD indicator be-

comes dim, replace the batteries.

Cautions:

• Always dispose of old batteries

promptly and properly.

• Never leave dead, old, or weak

batteries in the CTR-108. They

can leak chemicals and corrode or

damage electronic circuits.

• If you do not plan to use the CTR-

108 for a week or more, or if you

plan to use an adapter only,

remove the batteries to protect the

CTR-108 from possible battery

leakage.

{

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Using AC Power

To power the CTR-108 from standard

AC power, plug the supplied power

cord into the AC IN jack on the side of

the CTR-108. Then plug the other end

into a standard AC outlet.

Cautions:

• Always plug the power cord into

the AC IN jack before you plug it

into the AC outlet, and always

unplug the power cord from the

AC outlet before you unplug it

from the AC IN jack.

• The power cord has a polarized

plug that is designed to fit into the

recorder’s jack only one way. If the

plug does not easily fit into the

jack, do not force it. Simply turn it

over and try again.

Using Vehicle Battery Power

You can power the CTR-108 from your

vehicle’s cigarette-lighter socket using

a DC adapter, such as Cat. No. 273-

1802 (not supplied).

Cautions:

• You must use a DC adapter that

supplies 6 volts and delivers at

least 300 milliamps. Its center tip

must be set to negative, and its

plug must correctly fit the CTR-

108’s DC IN 6V jack. The recom-

mended adapter meets these

specifications. Using an adapter

that does not could damage the

CTR-108 or the adapter.

• Always plug the adapter into the

CTR-108 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-108.

1. Set the DC adapter’s voltage

switch to 6V.

2. Insert the adapter’s barrel plug

into the CTR-108’s DC IN 6V jack.

3. Insert the adapter’s larger plug

into the vehicle’s cigarette-lighter

socket.

OPTIMUS

CTR-108 CASSETTE RECORDER

AC/DC/BATTERY

DC IN 6V AUX EAR REM MIC VOLUME

14-1115.fm Page 5 Friday, January 8, 1999 10:31 AM

USING AN EARPHONE

For private listening, insert the sup-

plied earphone’s 1/8-inch plug into the

EAR jack.

Note: Connecting the earphone auto-

matically disconnects the built-in

speaker.

Listening Safely

To protect your hearing, follow these

guidelines when you use the ear-

phone.

• 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 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 an earphone while operat-

ing a motor vehicle or riding a bicycle.

This can create a traffic hazard and

can be illegal in some areas.

Even though some earphones let you

hear some outside sounds when lis-

tening at normal volume levels, they

still can present a traffic hazard.

DC IN 6V AUX EAR REM MIC VOLUME

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OPERATION

LOADING A CASSETTE

TAPE

1. Take up any slack in the tape by

turning one of the cassette’s hubs

with a pencil.

Caution: If you do not remove the

excess slack, the tape could

become tangled in the record/

playback mechanism.

2. Press STOP/EJECT to open the

cassette compartment door.

3. Load the cassette in the slot in the

door with its open edge out, the

side you want to play facing up,

and its full reel to the left.

4. Close the door.

PLAYING A CASSETTE

TAPE

1. Load the cassette tape.

2. Press PLAY. The cassette plays

until it reaches the end of the side,

then it automatically stops.

Notes:

•PressPAUSE to temporarily

stop playback. Press PAUSE

again to resume playback.

• To rapidly wind the tape forward

or backward, press STOP/

EJECT, then FAST-F or REWIND.

Press PLAY to resume play-

back.

3. Adjust

VOLUME as desired.

4. Press STOP/EJECT to completely

stop playback before it automati-

cally stops. Press STOP/EJECT

again to open the cassette com-

partment and remove the cassette

tape.

MIC

PLAY

REWIND

FAST-F

PAUSE

RECORD

STOP

EJECT

MIC

PLAY

REWIND

FAST-F

PAUSE

RECORD

STOP

EJECT

REM MIC VOLUME

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RECORDING

Notes:

• Before you load a cassette tape

for recording, be sure its erase-

protection tabs are in place (see

“Preventing Accidental Erasure”

on Page 10).

• The recorder’s Automatic Level

Control (ALC) circuit automatically

adjusts the recording level. VOL-

UME has no effect on recording.

Using the Built-In Microphone

1. Load a blank cassette tape, or one

you want to record over, into the

cassette compartment.

2. Place the CTR-108 2 to 3 feet

from the recording source.

3. Press RECORD to begin record-

ing. Both PLAY and RECORD lock

down.

Note: To temporarily stop record-

ing, press PAUSE. Press PAUSE

again to resume recording.

4. Speak into MIC.

5. Press STOP/EJECT to stop record-

ing.

Using an External

Microphone

You can connect an external micro-

phone (not supplied) with a 1/8-inch

plug to the CTR-108. Your local

RadioShack store sells a variety of mi-

crophones.

Note: Connecting an external micro-

phone automatically disconnects the

built-in microphone.

Follow these steps to record using an

external microphone.

1. Load a blank cassette tape, or one

you want to record over, into the

cassette compartment.

2. Insert the microphone’s plug into

the CTR-108’s MIC jack.

MIC

PLAY

REWIND

FAST-F

PAUSE

RECORD

STOP

EJECT

MIC

PLAY

REWIND

FAST-F

PAUSE

RECORD

STOP

EJECT

DC IN 6V AUX EAR REM MIC VOLUME

14-1115.fm Page 8 Friday, January 8, 1999 10:31 AM

Note: If the external microphone

has a separate, smaller plug for

remote operation, insert that plug

into the REM jack. Then you can

use the microphone’s remote

switch to stop or start recording.

3. Press RECORD to begin record-

ing. Both PLAY and RECORD lock

down.

Note: To temporarily stop record-

ing, press PAUSE. Press PAUSE

again to resume recording.

4. Speak into the external micro-

phone.

5. Press

STOP/EJECT to stop record-

ing.

Recording from a Connected

Audio Source

You can record directly from an exter-

nal audio source, such as a radio, tape

deck, or CD player. To make the con-

nection, you need a suitable mono

patch cord with a 1/8-inch plug (avail-

able from your local RadioShack

store).

Note: Before you connect an external

audio source to the recorder, be sure

the source’s and the recorder’s volume

controls are set to their minimum set-

tings.

Follow these steps to record from an

external audio source.

Note: If you connected an external mi-

crophone, disconnect it.

1. Load a blank cassette tape, or one

you want to record over, into the

cassette compartment.

2. Connect the external source to the

AUX jack.

3. Start the external audio source

and set its volume control to a nor-

mal listening level.

4. Press RECORD to begin record-

ing. Both PLAY and RECORD lock

down.

Note: To temporarily stop record-

ing, press PAUSE. To resume

recording, press PAUSE again.

5. Press STOP/EJECT to stop record-

ing. Then stop the audio source.

Note: During recording, the speaker is

muted. If you want to monitor the re-

cording, use the supplied earphone.

DC IN 6V AUX EAR REM MIC VOLUME

External

source

14-1115.fm Page 9 Friday, January 8, 1999 10:31 AM

TAPE TIPS

Recommended Tapes

Tape quality greatly affects the quality

of the recording. We recommend ex-

tended-range or low noise Type 1 reg-

ular length (60- or 90-minute) normal-

bias cassette tapes. We do not recom-

mend long-play cassette tapes such as

C-120s because they are thin and can

easily tangle.

Erasing a Cassette Tape

To record over a cassette tape, simply

record as usual. The cassette deck

records over the previous recording.

To erase the entire cassette tape, in-

sert the supplied erasing plug into the

MIC jack and press RECORD. (Be sure

you have not connected anything to

the

AUX jack.)

If you need to erase an entire cassette,

you might prefer using a bulk tape

eraser, available at your local

RadioShack store.

Preventing Accidental

Erasure

Cassette tapes have two erase-protec-

tion tabs — one for each side. When a

tab is in place, you can record on that

side.

To protect a recording from being acci-

dentally recorded over or erased, use

a screwdriver to remove one or both of

the cassette tape’s erase-protection

tabs. This prevents RECORD from be-

ing pressed.

If you later decide to record on a tape

side after you have removed its erase-

protection tab, place a piece of strong

plastic tape over that side’s erase-pro-

tection hole. Be sure you cover only

the hole originally covered by the

erase-protection tab.

Caution: Removing the erase-protec-

tion tabs does not prevent a bulk eras-

er from erasing a cassette tape.

DC IN 6V AUX EAR REM MIC VOLUME

Side A Tab

14-1115.fm Page 10 Friday, January 8, 1999 10:31 AM

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