Page 2 - FEATURES
2 FEATURES Your Optimus CTR-115 Voice-Activated Cassette Tape Re-corder uses the latest in recording technology to make record-ing easy and convenient. Recording begins when the CTR-115detects sound and ends when sound subsides, for hands-freeoperation. The CTR-115’s microphone is sensitive enough f...
Page 3 - Built-In Speaker — lets you listen to your recordings.
3 Mic Sensitivity Switch — lets you select low, medium, or highmicrophone sensitivity for recording. Record/Battery Indicator — lights when you are recording.When you are not, it indicates the battery’s condition. Built-In Speaker — lets you listen to your recordings. Automatic Level Control — autom...
Page 4 - CONTENTS
4 CONTENTS Preparation ............................................................................ 5 Before You Begin ............................................................... 5Powering the CTR-115 ...................................................... 5 Installing Batteries ....................
Page 5 - PREPARATION; BEFORE YOU BEGIN; • standard household AC power (using an optional AC
5 PREPARATION BEFORE YOU BEGIN To protect the record/playback head during shipment, a protec-tive sleeve is positioned around the head. Gently pull open thecassette compartment door and remove the sleeve before youuse the cassette recorder. POWERING THE CTR-115 You can operate your CTR-115 from any ...
Page 6 - Installing Batteries; • Use only fresh batteries of the required size and recom-; or
6 Installing Batteries You can power the CTR-115 with two AA batteries. We recom-mend alkaline batteries, such as RadioShack Cat. No. 23-552. Cautions: • Use only fresh batteries of the required size and recom- mended type. • Do not mix old and new batteries or different types of bat- teries. 1. Pre...
Page 7 - Using AC Power
7 Cautions: • Always remove old or weak batteries. Batteries can leak chemicals that can destroy electronic parts. • Dispose of old batteries promptly and properly. Do not burn or bury them. Using AC Power To power the CTR-115 from an AC outlet, you need an ACadapter, such as RadioShack Cat. No. 273...
Page 8 - Using Vehicle Battery Power
8 Follow these steps to power the CTR-115 with an AC adapter. 1. Set the adapter’s voltage switch to 3V. 2. Insert the adapter’s 2.35 mm outer diameter/0.7 mm inner diameter barrel plug into the adapter’s cord, with the tip setto positive. 3. Insert the barrel plug into the CTR-115’s DC IN 3V jack. ...
Page 9 - Plug the other end of the adapter into the vehicle’s ciga-
9 • Be sure you plug the adapter into the CTR-115 before you plug it into the cigarette-lighter socket, and that you unplugthe adapter from the cigarette-lighter socket before youunplug it from the CTR-115. Follow these steps to power the CTR-115 from your vehicle’scigarette-lighter socket. 1. Set t...
Page 10 - CONNECTING THE EARPHONE; Insert the earphone or speaker’s; jack. This automatically disconnects the internal speaker.; Listening Safely; • Do not listen at extremely high volume levels. Extended
10 CONNECTING THE EARPHONE You can use the supplied earphone to listen privately to record-ed sound or to monitor recording. You can also connect an ex-ternal or pillow-type speaker (not supplied) to this jack. Note: Your local RadioShack store sells a wide variety ofspeakers. Insert the earphone or...
Page 11 - • Do not increase the volume once you have established a; Traffic Safety
11 • Do not increase the volume once you have established a comfortable listening level. Over time, your ears adapt tothe volume level, so a volume level that does not causediscomfort might still damage your hearing. Traffic Safety Do not wear the earphone while operating a motor vehicle orriding a ...
Page 12 - PLAYING A CASSETTE TAPE
12 PLAYING A CASSETTE TAPE 1. Gently pull open the cassette compartment door. 2. Use your finger or a pencil to turn the cassette’s hub and takeup any slack in the tape. Do nottouch the tape. 3. Load a cassette into the door’s guides so the cassette’s openedge is out and the side youwant to play fac...
Page 13 - counterclockwise to its lowest; to a comfortable listening level.
13 Note: This switch’s setting has no effect when recording(see “Recording” on Page 17). 5. Rotate VOLUME/VOX SENS counterclockwise to its lowest setting. 6. Press PLAY . The tape begins to play. 7. Adjust VOLUME/VOX SENS to a comfortable listening level. PLAY 14-1121.fm Page 13 Thursday, July 1, 19...
Page 16 - USING THE TAPE COUNTER
16 USING THE TAPE COUNTER You can use the tape counter togive you an indication of the tape’sposition. Before playing a tape,press the tape counter reset buttonto set the counter to 000 . When the recorder plays, the numbers advance to show theamount of tape that has moved past the tape heads since ...
Page 17 - RECORDING; USING THE BUILT-IN MICROPHONE
17 RECORDING Note: For the best performance, use only regular length (60- or90-minute) cassette tapes. We do not recommend long-playingcassette tapes, such as C-120s, because they are extremelythin and can tangle easily. USING THE BUILT-IN MICROPHONE You can pop up the built-in microphone to direct ...
Page 18 - VOX RECORDING; Gently pull open the cassette
18 VOX RECORDING When you select VOX recording, the CTR-115 automaticallybegins recording when it receives a sound signal from a voiceor other sound, and automatically stops when the sound stops. For the best recording quality, place the recorder about 1 footfrom the sound source. Because the microp...
Page 20 - Caution: Never try to force down; MANUAL RECORDING
20 Note: If the audio input is too strong, the indicator lightssteadily. 7. To momentarily stop recording even while the sound con- tinues, slide PAUSE to ON . Slide PAUSE to OFF to resume recording. Caution: Never try to force down RECORD if you have removed the erase protection tab (see “Preventin...
Page 22 - You can record directly from a tuner, a radio, or a TV that has a; jack
22 RECORDING FROM EXTERNAL SOURCES You can record directly from a tuner, a radio, or a TV that has a 1 / 8 -inch (3.5-mm) jack. Use a dubbing patch cord such as Ra- dioShack Cat. No. 42-2152 to connect the CTR-115’s MIC jack to the headphone output jack of an external component. Set VOX/TONE to OUT ...
Page 23 - TAPE TIPS; ERASING A RECORDING; to; and record silence over the; PREVENTING ACCIDENTAL ERASURE
23 TAPE TIPS ERASING A RECORDING If you want to erase an entire cas-sette or a portion of a recording, in-sert the supplied erase plug into the MIC jack. Then set VOX/TONE to OUT and record silence over the previous recording. Or, you can quickly erase both sides of a cassette tape using abulk tape ...
Page 25 - CARE AND MAINTENANCE; • Use and store the CTR-115 only in normal temperature
25 CARE AND MAINTENANCE To enjoy your CTR-115 for a long time: • Keep the CTR-115 dry. If it gets wet, wipe it dry immedi- ately. • Use and store the CTR-115 only in normal temperature environments. • Handle the CTR-115 gently and carefully. Don’t drop it. • Keep the CTR-115 away from dust and dirt....
Page 27 - SPECIFICATIONS; or vehicle’s cigarette-lighter socket
27 SPECIFICATIONS Tape System .............................. 2-track, Monophonic Cassette Tape Speed .......................................... 1 7 / 8 ips. (4.75 cm/sec.) Wow and Flutter ............................................... 0.25% (WRMS) Signal-to-Noise Ratio (Rec/Play) .....................
