Radio Shack 14-1107A User Manual

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14-1107.fmPage 1 Thursday, July 1, 1999 11:15 AM

Cat. No. 14-1107A

OWNER’S MANUAL

Please read before using this equipment.

CTR-94

DC Portable Cassette Tape Recorder

14-1107.fmPage 2 Thursday, July 1, 1999 11:15 AM

FEATURES

Your Radio Shack CTR-94DC Portable Cassette Tape Recorder is reliable,easy-to-use,and very handy at home, in your office, in your vehicle, or anywhere you go.

Its features include:

Automatic Stop — protects the tape and tape handling parts by automatically stopping the tape when it reaches the end.

Automatic Level Control (ALC) Circuit — ensures quality recording by automatically setting the proper recording level.

Record/Battery Indicator — flikers during recording and lights steadily when the batteries need replacing.

Built-inCondenser Microphone— gives you high-sensitivity for recording conferences or lectures.

Supplied Earphone — let you listen in privacy.

Auxiliary Input Jack — lets you connect a radio, tape deck, or CD player so you can record from these external audio sources.

External Microphone Jack — lets you connect an external microphone so you can record an individual but exclude the surrounding noise

Remote Control Jack — lets you connect an external microphone with an on/off switch so you can control the CTR-94 from your microphone.

Erasing Plug — plugs into the external microphone jack so you can erase a cassette tape by recording silence.

Retractable Handle — lets you easily carry the CTR-94.

Three Power Sources — let you power the CTR-94 from four C batteries (not supplied), standard AC power (with an optional AC adapter), or vehicle DC power (with an optional DC adapter).

© 1996 Tandy Corporation.

All Rights Reserved.

Radio Shack is a registered trademark used by Tandy Corporation.

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CONTENTS

 

Preparation .......................................................................................................

4

Connecting Power .......................................................................................

4

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

4

Checking the Battery Condition.............................................................

5

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

5

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

6

Connecting an Earphone .............................................................................

7

Listening Safely .....................................................................................

7

Traffic Safety .........................................................................................

7

Operation ..........................................................................................................

8

Loading a Cassette......................................................................................

8

Playing a Tape .............................................................................................

8

Recording ....................................................................................................

9

Using the Built-InMicrophone ...............................................................

9

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

9

Recording from an External Audio Source ..........................................

10

Tape Tips ...................................................................................................

11

Recommended Tapes .........................................................................

11

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

11

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

12

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

12

Maintenance....................................................................................................

13

Cleaning the Tape-HandlingParts .............................................................

14

Specifications .................................................................................................

15

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PREPARATION

CONNECTING POWER

You can power your CTR-94from any of these power sources:

Internal batteries

Standard AC power (with an optional AC adapter)

Vehicle battery power (with an optional DC auto adapter)

Note: Connecting an adapter disconnects the internal batteries.

Cautions:

Always dispose of old batteries promptly and properly.

Never leave dead, old, or weak batteries in the CTR-94.Batteries can leak chemicals and corrode or damage electronic circuits.

If you do not plan to use batteries in the CTR-94for a month or more, remove the batteries to protect the CTR94 from possible battery leakage.

Using Internal Batteries

You can power your CTR-94from four C batteries (not supplied). For the best performance, we recommend alkaline batteries, such as Cat. No.23-551.

1.Press down on the battery compartment cover’s grooves and slide it off in the direction of the arrow.

3.Install the batteries as indicated by the polarity symbols (+ and –)marked inside the battery compartment.

Cautions:

Use only fresh batteries of the required size and type.

Never mix fresh and old batteries, or different battery types.

4.Replace the cover.

2.Remove the old batteries (if necessary).

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Checking the Battery

Condition

To check the battery’s condition, press PLAY,REWIND, orFAST-F.If the RECORD/BATTERY indicator lights steadily, the batteries need replacing.

(illus)

Using AC Power

You can also power the CTR-94from standard AC power using an AC adapter, such as Radio Shack Cat. No.273-1662(not supplied).

Cautions:

The recommended adapter supplies 6 volts and delivers at least 300 milliamps. Its center tip is set to negative, and its plug correctly fits the CTR-94’sDC 6V jack. Using an adapter that does not meet these specifications could seriously damage theCTR-94or the adapter.

Always plug the adapter into the CTR-94before you plug it into the AC outlet, and always unplug the adapter from the AC outlet before you unplug it from theCTR-94.

Note: The recorder automatically disconnects internal batteries when you connect an AC adapter.

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

(illus)

2.Insert the adapter’s green-tippedbarrel plug into the adapter’s cord so it readsTIP-NEG.

(illus)

3.Plug the adapter’s barrel plug into the DC 6V jack on the left side of theCTR-94.

EAR AUX REM MIC

MIN – VOLUME – MAX

DC 6V + -

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

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Using Vehicle Battery Power

You can also power the CTR-94from your vehicle’s battery using an auto DC adapter (such as Radio Shack Cat. No.14-844,not supplied) that connects to your vehicle’s cigarettelighter socket.

Cautions:

The recommended DC adapter supplies 6 volts and delivers at least 300 milliamps. Its center tip is set to negative, and its plug correctly fits the recorder’s DC 6V jack. Using an adapter that does not meet these specifications could seriously damage the recorder or the adapter.

Always plug the adapter into the recorder before you plug it into the cigarette-lightersocket, and always unplug the adapter from thecigarette-lightersocket before you unplug it from the recorder.

1.Set the DC adapter’s voltage switch to 6V.

(illus)

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2.Insert the DC adapter’s blacktipped barrel plug into the adapter’s cord so it reads TIPNEG.

(illus)

3.Insert the adapter’s barrel plug into the CTR-94’sDC 6V jack.

EAR

 

AUX

 

REM

 

MIC

MIN – VOLUME – MA

DC 6V + -

4.Plug the adapter’s larger plug into the vehicle’s cigarette lighter socket.

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CONNECTING AN

EARPHONE

For private listening, you can use the supplied earphone. Insert the earphone’s 1/8-inchplug into theEAR jack.

 

 

 

 

 

 

 

 

 

 

 

 

 

EAR

 

AUX

 

REM

 

MIC

MIN – VOLUME – MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Connecting the earphone automatically disconnects thebuilt-inspeaker.

Listening Safely

To protect your hearing, follow these guidelines when you use an earphone.

Do not listen at extremely high volume levels. Extended high volume listening can lead to permanent hearing loss.

Set the volume to the lowest setting before you begin listening. After you begin listening, adjust the volume to a comfortable level.

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.

Traffic Safety

Do not wear an earphone while operating a motor vehicle or riding a bicycle. This can create a traffic hazard and is illegal in some areas.

Even though some earphones are designed to let you hear some outside sounds when listening at normal volume levels, they still present a traffic hazard.

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OPERATION

LOADING A CASSETTE

PLAYING A TAPE

1.Take up any slack in the tape by turning one of the cassette’s hubs with a pencil.

Warning: To protect your hearing, setVOLUME to its lowest setting before you begin playing a cassette tape.

(illus)

Caution: If you do not remove excess slack, the tape might get tangled in the record/playback mechanism.

2.Press STOP/EJECT to open the cassette compartment door.

MIC

CT R-94AC /BA TT ERY CA SS ET TE R EC ORD ER

RECORD

 

PLAY

REWIND FAST-F

STOP

 

PAUSE

 

EJECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EAR

 

AUX

 

REM

 

MIC

MIN – VOLUME – MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.Load a prerecorded cassette tape into the compartment.

2.Press PLAY. The cassette plays until it reaches the end of the side, then it automatically stops andPLAY releases.

MIC

CT R-94AC /BA TT ERY CA SS ET TE R EC ORD ER

RECORD

 

PLAY

REWIND FAST-F

STOP

 

PAUSE

 

EJECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes:

3.Load the cassette with its open edge toward the controls, the desired side facing up, and its full reel on the left.

(illus)

4. Close the door.

Press PAUSE to temporarily stop playback. To resume playback, pressPAUSE again.

Press FAST-For REWINDto rapidly wind the tape forward or backward. To resume play, press STOP/EJECTthen PLAY.

The cassette automatically stops when the tape reaches the end only in the PLAYor RECORDmodes, and not in the FAST-For REWINDmodes.

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3.Adjust VOLUME to the desired listening level.

4.Press STOP/EJECT to completely stop playback before it automatically stops. PressSTOP/EJECT again to open the cassette compartment and remove the cassette.

RECORDING

Notes:

Before you load a cassette tape for recording, be sure the cassette’s erase-protectiontabs are in place (see “Preventing Accidental Erasure”).

The CTR-94’sAutomatic Level Control (ALC) circuit automatically adjusts the recording level.VOLUME has no effect on recording.

Using the Built-In

Microphone

The built-incondenser microphone is ahigh-sensitivitymicrophone that easily picks up sounds, near or far. This is handy for recording conferences or lectures.

1.Load a blank cassette tape, or one you want to record over, into the cassette compartment.

2.Place the recorder 2 or 3 feet from the recording source.

3.Press RECORD to begin recording. BothPLAY andRECORD lock down.

CT R-94 A C/B AT TE RY C AS SET TE RE COR DER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIC

RECORD

 

PLAY

REWIND FAST-F

STOP

 

PAUSE

 

EJECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Speak into MIC.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIC

 

 

 

 

 

CT R-94 A C/B AT TE RY C AS SET TE RE COR DER

 

 

 

RECORD PLAY

REWIND FAST-F

STOP

 

PAUSE

 

 

 

EJECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: To temporarily stop recording, pressPAUSE. To resume recording, pressPAUSE again.

5.Press STOP/EJECT to stop recording.

Using an External

Microphone

You can connect an external microphone with a 1/8-inchplug to the recorder. This is handy for when you want to record only an individual’s voice and exclude all other sounds in the surrounding area. Your local Radio Shack store carries a wide variety of external microphones.

Note: Connecting an external microphone automatically disconnects thebuilt-incondenser microphone.

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1.Load a blank cassette tape, or one you want to record over, into the cassette compartment.

2.If the external microphone has only a 1/8-inchplug, insert it into the recorder’sMIC jack.

 

 

 

 

 

 

 

 

 

 

 

 

 

EAR

 

AUX

 

REM

 

MIC

MIN – VOLUME – MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If the external microphone has two plugs and an on/off switch, you can remotely control the CTR-94from your microphone. Insert the microphone’s1/8-inchplug into the recorder’sMIC jack, and the smaller plug into theREM jack.

3.Press RECORD to begin recording. BothPLAY andRECORD lock down.

Note: To temporarily stop recording, pressPAUSE on the recorder (orOFF on the microphone). To resume recording, pressPAUSE again on the recorder (orON on the microphone).

4.Speak into the external microphone.

5.Press STOP/EJECT to stop recording.

10

Recording from an External Audio Source

You can record directly from an external audio source, such as a radio, tape deck, or CD player, using a suitable patch cord (not supplied) with a 1/8-inchplug.

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 setting.

1.Load a blank cassette tape, or one you want to record over, into the cassette compartment.

2.If you connected an external microphone, disconnect it.

3.Connect your external audio source to the AUX jack, using an optional patch cord with a1/8- inch plug at one end and the appropriate plug at the other end that matches your audio source’s output jack.

 

 

 

 

 

 

 

 

 

 

 

 

 

EAR

 

AUX

 

REM

 

MIC

MIN – VOLUME – MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.Start the sound source and set its volume to a normal listening level.

14-1107.fmPage 11 Thursday, July 1, 1999 11:15 AM

Note: During recording, the speaker is muted. If you want to monitor the recording, use the supplied earphone.

5.Press RECORD to begin recording. BothPLAY andRECORD lock down.

Note: To temporarily stop recording, pressPAUSE. To resume recording, pressPAUSE again.

6.Press STOP/EJECT to stop recording.

Important: Most material on prerecorded tapes is copyrighted. Unauthorized duplication of copyrighted material is a violation of the copyright laws of most countries and such duplication may result in fines and/or imprisonment. Note, however, that in the United States, it is not a violation of U.S. copyright laws for a consumer to use an audio recording device to duplicate musical recordings for noncommercial (personal) use.

TAPE TIPS

Recommended Tapes

Tape quality greatly affects the quality of the recording. We recommend extended-rangeor low noise Type 1 regular length (60or90-minute)nor-mal-biascassette tapes. We do not recommendlong-playcassette tapes such asC-120sbecause they are thin and 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 a cassette tape, insert the supplied erasing plug into the MIC jack and pressRECORD.

 

 

 

 

 

 

 

 

 

 

 

 

 

EAR

 

AUX

 

REM

 

MIC

MIN – VOLUME – MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Be sure you have not connected anything to theAUX jack.

If you need to erase an entire cassette, you might prefer using a bulk tape eraser, which is available at your local Radio Shack store.

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Preventing Accidental

Erasure

Cassette tapes have two erase-pro-tection tabs — one for each side. When a tab is in place, you can record on that side.

To protect a recording from being accidentally recorded over or erased, use a screwdriver to remove one or both of the cassette tape’s eraseprotection tabs. This prevents RECORD from being pressed.

(illus)

If you later decide to record on a tape side after you have removed the erase-protectiontab for that side, place a piece of strong plastic tape over that side’serase-protectionhole. Be sure you cover only the hole originally covered by theerase-pro-tection tab.

(illus)

12

Caution: Removing theerase-pro-tection tabs does not prevent a bulk eraser from erasing a cassette tape.

Restoring Tape Tension and

Sound Quality

After you play a cassette tape several times, the tape might become tightly wound on the reels. This can cause playback sound quality to deteriorate.

To restore the sound quality, fast-for-ward the tape from the beginning to the end of one side, then completely rewind it. Then loosen the tape reels by gently tapping each side of the cassette’s outer shell on a flat surface.

Caution: Be careful not to damage the cassette when tapping it. Do not touch the exposed tape or allow any sharp objects near the cassette.

14-1107.fmPage 13 Thursday, July 1, 1999 11:15 AM

MAINTENANCE

Your Radio Shack CTR-94DC Portable Cassette Tape Recorder is an example of superior design and craftsmanship. The following suggestions will help you care for yourCTR-94so you can enjoy it for years.

Keep the CTR-94dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits.

Handle the CTR-94gently and carefully. Dropping it can damage circuit boards and cases and can cause theCTR-94to work improperly.

Use and store the CTR-94only in normal temperature environments. Temperature extremes can shorten the life of electronic devices and distort or melt plastic parts.

Keep the CTR-94away from dust and dirt, which can cause premature wear of parts.

Wipe the CTR-94with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean theCTR-94.

Modifying or tampering with the CTR-94’sinternal components can cause a malfunction and might invalidate yourCTR-94’swarranty. If yourCTR-94is not performing as it should, take it to your local Radio Shack store for assistance.

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CLEANING THE TAPEHANDLING PARTS

Dirt, dust, or particles of the tape’s coating can accumulate on the tape heads and other parts the tape touches. This can greatly reduce the cassette recorder’s performance.

To prevent noise and poor high-fre-quency response, clean the cassette recorder’stape-handlingparts after every 20 hours of use.

Note: Your local Radio Shack store carries a complete line of cassette cleaning supplies.

1.Remove the batteries and disconnect any other power source.

2.Open the cassette compartment cover.

3.Press PLAY to expose the tapehandling parts.

14

4.tape head cleaning solution or denatured alcohol to gently clean the capstan, pinch roller, tape head, and tape guides.

(illus)

5.When you finish cleaning, press STOP/EJECT and close the compartment.

14-1107.fmPage 15 Thursday, July 1, 1999 11:15 AM

SPECIFICATIONS

CASSETTE PLAYER

Track System ...........................................................................

2-TrackMonaural

Tape Speed .......................................................................................

4.76 cm/sec

Recording System ........................................................

Magnetic Erase, AC Bias

Frequency Response ............................................................

125–6.3kHz ±6 dB

Signal-to-NoiseRatio ..................................................................................

55 dB

Wow and Flutter .........................................................................................

0.35%

GENERAL

Power Requirements.................................................................................

DC 6V

 

Four C Batteries (Cat. No. 23-551/651)

 

AC Adapter (Cat. No. 273-1662)

 

DC Auto Adapter (Cat. No. 14-844)

Dimensions (HWD).........................................................

13/4 ¥ 511/16 ¥ 95/8 Inches

 

(45 ¥ 145 ¥ 245 mm)

Weight (without batteries).........................................................................

1.75 lb.

 

(794 g)

Specifications are typical; individual units might vary. Specifications are subject to change without notice.

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RADIO SHACK LIMITED WARRANTY

This product is warranted against defects for 90 days from date of purchase from Radio Shack company-ownedstores and authorized Radio Shack franchisees and dealers. Within this period, we will repair it without charge for parts and labor. Simplybring your Radio Shack sales slip as proof of purchase date to any Radio Shack store. Warranty does not cover transportation costs. Nor does it cover a product subjected to misuse or accidental damage.

EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states do not permit limitation or exclusion of implied warranties; therefore, the aforesaid limitation(s) or exclusion(s) may not apply to the purchaser.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

We Service What We Sell

9/94

RADIO SHACK

A Division of Tandy Corporation

Fort Worth, Texas 76102

3A6

Printed in Hong Kong