3-1275.fm Page 1 Wednesday, July 14, 1999 3:59 PM Cat. No. 13-1275 OWNER’S MANUAL Please read before using this equipment.
13-1275.fm Page 2 Wednesday, July 14, 1999 3:59 PM FEATURES Your Optimus System 728 Mini Stereo Compnent System is a versatile and high quality sound system. Its components include a 3-disc carousel CD changer with 32-track memory, AM/FM stereo tuner with 20station presets, and dual cassette players with high-speed dubbing. Automatic Search æ lets you quickly select any track on the loaded CDs. You can operate many of the system’s functions with its remote control.
13-1275.fm Page 3 Wednesday, July 14, 1999 3:59 PM General Auxiliary Input Jacks æ let you connect an external audio input source to your system so you can listen to or record from it. Microphone Mixing æ lets you sing along with the music you are playing. Important: Most material on compact discs and 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.
13-1275.fm Page 4 Wednesday, July 14, 1999 3:59 PM FCC INFORMATION This system complies with the limits for a Class B digital device as specified in part 15 of FCC Rules. These limits provide reasonable protection against TV or radio interference in a residential area. However, your system might cause TV or radio interference even when it is operating properly. To eliminate interference, you can try one or more of the following corrective measures.
13-1275.fm Page 5 Wednesday, July 14, 1999 3:59 PM CONTENTS Preparation ....................................................................................................... 7 Connecting the Speakers ............................................................................ 7 Connecting an External Audio Source......................................................... 7 Connecting an External Antenna .................................................................
13-1275.fm Page 6 Wednesday, July 14, 1999 3:59 PM Repeat Play ............................................................................................... 21 Repeating a Single Track .................................................................... 21 Repeating All Tracks on a Selected CD .............................................. 21 Repeating All Tracks on All Loaded CDs ............................................ 21 Repeating a Programmed Sequence..............................................
13-1275.fm Page 7 Wednesday, July 14, 1999 3:59 PM PREPARATION Note: Complete all connections before connecting to AC power and turning it on. CONNECTING AN EXTERNAL AUDIO SOURCE CONNECTING THE SPEAKERS To connect an external audio source (such as a CD player or a cassette deck) to your system, connect the source’s left and right line level output jacks to the AUX IN R and L jacks on the back of your system. CONNECTING AN EXTERNAL ANTENNA 1. Press the red speaker terminal tab labeled SPEAKER R.
13-1275.fm Page 8 Wednesday, July 14, 1999 3:59 PM INSTALLING THE REMOTE CONTROL’S BATTERIES The remote control requires two AA batteries (not supplied) for power. We recommend alkaline batteries, such as Radio Shack Cat. No. 23557. 3. Replace the cover. Caution: If you are not going to use the remote control for a month or more, remove its batteries. Weak batteries can leak damaging chemicals. Note: If the remote control operates erratically or does not work, replace both batteries.
13-1275.fm Page 9 Wednesday, July 14, 1999 3:59 PM OPERATION TURNING POWER ON/ OFF Warning: To protect your hearing, set VOLUME to MIN before you turn on the system. SETTING THE CLOCK 1. If necessary, press DISPLAY so CLO and the time appear on the display. 2. Press MEMORY. CLO on the display. flashes Press POWER to turn on the system. The STAND BY indicator turns off and the indicator above CD, TUNER, TAPE, or AUX lights.
13-1275.fm Page 10 Wednesday, July 14, 1999 3:59 PM BASIC OPERATION Follow these steps to operate your system. 4. Adjust BALANCE until you can hear the sound equally from the left and right speakers. 1. Press CD, TUNER, TAPE, or AUX to select the desired audio source. 5. Select the desired equalization by pressing NORMAL, POP, ROCK, or CLASSIC (see “Using the Electronic Graphic Equalizer”). 2. If you select TUNER, select the desired station (see “Using the Tuner”).
13-1275.fm Page 11 Wednesday, July 14, 1999 3:59 PM USING HEADPHONES Listening Safely You can use headphones (not supplied) to listen in privacy. Insert the headphones’ 1/8-inch (3.5 mm) plug into the PHONES jack. To protect your hearing, follow these guidelines when you use headphones. • Do not listen at extremely high volume levels. Extended highvolume listening can lead to permanent hearing loss. • Set the volume to the lowest setting before you begin listening.
13-1275.fm Page 12 Wednesday, July 14, 1999 3:59 PM DISPLAYING THE TIME To display the clock while you use the radio, press DISPLAY. To return to the radio display, press DISPLAY again. USING THE ELECTRONIC GRAPHIC EQUALIZER You can select any one of four preset sound characteristics using the system’s electronic graphic equalizer. Each setting distinctly changes the music’s character or tone.
-1275.fm Page 13 Wednesday, July 14, 1999 3:59 PM 〈 〉 Note: If you do not press TUNING or within 10 seconds after you press 1, TIM ON disappears from the display. Start again from Step 1. 〈 2. While TIM ON flashes, repeatedly press TUNING to set the hour of the desired start time. 4. Press 2. TIM OFF flashes on the display. 〈 5. While TIM OFF flashes, repeatedly press TUNING to set the hour of the desired end time. Notes: 〈 • Press and hold down TUNING to continuously advance the hour.
13-1275.fm Page 14 Wednesday, July 14, 1999 3:59 PM Turning the Timer On/Off 1. Press TUNER or TAPE to select the desired audio source. To turn off the timer, simply press TIMER again. Notes: 2. If you selected TUNER, select the desired station (see “Using the Tuner”) and adjust VOLUME to a comfortable listening level. • The system’s controls do not work when TIMER is pushed to on. To operate the system, you must turn off the timer.
13-1275.fm Page 15 Wednesday, July 14, 1999 3:59 PM USING THE SLEEP TIMER USING THE REMOTE CONTROL You can set the system to play up to 90 minutes, then automatically turn off. The remote control’s buttons have the same functions as the corresponding buttons on the main system. 1. Press CD, TUNER, TAPE, or AUX to select the desired audio source. 2. Tune to the desired AM or FM radio station, or start the selected CD, tape, or your external audio source.
13-1275.fm Page 16 Wednesday, July 14, 1999 3:59 PM USING THE TUNER Press TUNER to use the system’s tuer. The indicator above TUNER lights. Notes: • The system uses a built-in ferrite antenna for AM reception. For the best AM reception, rotate the system. • For the best FM reception, see “Connecting an External FM Antenna.” You can tune to AM or FM radio stations using manual, seek, or memory tuning. MANUAL TUNING • Press it in to select stereo.
13-1275.fm Page 17 Wednesday, July 14, 1999 3:59 PM AUTOMATIC SEEK TUNING 1. Press BAND to select the desired AM or FM band. AM or FM appears on the display. 2. Using either manual or automatic seek tuning, select the station you want to store, then press MEMORY. 2. Press TUNING AUTO. The system automatically searches up the band and stops when it finds the next strong station. 3. While MEM- appears on the display, follow these guidelines to store up to 10 stations in memory.
13-1275.fm Page 18 Wednesday, July 14, 1999 3:59 PM • To store stations into memory locations 6-10, press +5 then a memory location button (15). The station is stored, MEM- disappears, and the display shows the frequency. Note: This increases the memory location number by 5. For example, if you press +5, then press memory location button 2, the radio stores the frequency you selected into memory location 7. (illus - show the baloon pointing at the +5 button 4.
13-1275.fm Page 19 Wednesday, July 14, 1999 3:59 PM USING THE CD CHANGER LOADING A CD 1. Press CD . PLAYING A CD To play a CD, simply press PLAY/ PAUSE after you load it. The selected t CD begins to play from Track 1. The display shows , the current tray number, the CD’s current track number, the track’s elapsed time, and the current track number indicator flashes. The system plays all the loaded CDs once. Notes: ∇ ∇ • After you load a CD, do not press either SKIP.
13-1275.fm Page 20 Wednesday, July 14, 1999 3:59 PM SELECTING ANOTHER CD To select another CD, press CD SKIP before or during play. If the system is playing a CD, it stops playing it and begins playing the first track of the selected CD. RANDOM PLAY This feature randomly selects and plays tracks from all loaded CDs. Note: To randomly select tracks from only one or two CDs, you must load only those CDs in the CD tray. 1. Press STOP to cancel any CD function.
13-1275.fm Page 21 Wednesday, July 14, 1999 3:59 PM Notes: ∇ ∇ ∇ ∇ • To repeat the current track, SKIP. To play the press next random track, press SKIP . Repeating All Tracks on a Selected CD • To repeat random play, before the last track ends, press REPEAT until REPEAT ALL appears on the display. • To stop random play, press STOP then RANDOM. RANDOM disappears from the display. To repeat all tracks on a selected CD, press CD SKIP to select the desired CD.
13-1275.fm Page 22 Wednesday, July 14, 1999 3:59 PM You can program up to 32 tracks from any loaded CDs to play in any order you choose. Programming and Playing a Sequence of Tracks 1. Press STOP to cancel any CD function. 7. Press PLAY/PAUSE . The CD player plays the tracks in the programmed order. MEMORY, the tray number, the current track number, and the track’s elapsed time appear on the display.
13-1275.fm Page 23 Wednesday, July 14, 1999 3:59 PM Replacing/Adding a Track in a Programmed Sequence 1. While play is stopped, repeatedly press PROGRAM until the track position number you want to replace or add to appears on the display. 2. Press CD SKIP to select the CD containing the new track. ∇ ∇ ∇ ∇ SKIP or SKIP 3. Press until the desired track appears on the display. 4. Press PROGRAM. The new track replaces a previous track or is added to the programmed sequence.
13-1275.fm Page 24 Wednesday, July 14, 1999 3:59 PM USING THE CASSETTE DECK The system has two cassette decks. You can use Deck 1 for normal playback, consecutive play, and dubbing (recording). You can use Deck 2 for normal playback and consecutive play. Both decks (1 and 2) have a full-release auto-stop system to protect tapes and prevent pinch roller damage. When a tape reaches the end while playing, recording, fast-forwarding, or rewinding, the tape mechanism automatically stops.
13-1275.fm Page 25 Wednesday, July 14, 1999 3:59 PM 4. To fast-forward or rewind the tape, press STOP/EJECT then press FAST-F or REWIND on the deck you are using. To temporarily stop playback, press PAUSE on the deck you are using. Press PAUSE again to continue playback. To stop playback, fast-forward, or rewind, press STOP/EJECT on the deck you are using. 5. To open the cassette compartment and remove the cassette tape, press STOP/EJECT while the cassette player is stopped.
13-1275.fm Page 26 Wednesday, July 14, 1999 3:59 PM 2. To record at normal speed for the best quality sound, set HIGH SPEED DUBBING to OFF. To record in half the normal recording time, set HIGH SPEED DUBBING to ON. 3. On Deck 1, press PAUSE then RECORD . PLAY on Deck 1 automatically locks down. Caution: Do not force down RECORD . This can damage the recording mechanism. 4. On Deck 2, press PLAY. PAUSE on Deck 1 releases and the system copies the tape in Deck 2 onto the tape in Deck 1.
13-1275.fm Page 27 Wednesday, July 14, 1999 3:59 PM Notes: • To copy a programmed sequence, store the desired sequence before continuing with Step 4. • To copy a CD’s tracks in random sequence, press RANDOM so RANDOM appears on the display before continuing with Step 4. 4. Simultaneously press PAUSE on Deck 1 and PLAY/PAUSE on the CD player. The system records from the CD onto the cassette tape. 5.
13-1275.fm Page 28 Wednesday, July 14, 1999 3:59 PM Timer Recording You can set the system to automatically turn itself on, record from a selected audio source (such as the tuner or a cassette tape in Deck 2) onto a cassette tape in Deck 1, then turn itself off at the time you set. 1. Repeat Steps 1-7 in “Using the Timer,” to set the start and end times and select the source you want to record from. 2. On Deck 1: • Load a blank cassette tape, or one you want to record over.
13-1275.fm Page 29 Wednesday, July 14, 1999 3:59 PM MICROPHONE MIXING Using an external microphone with a 1 /8-inch plug (not supplied), you can sing along with selections on CDs or cassette tapes, or with a song played over the radio. Warning: To prevent damage to your hearing, set VOLUME to its minimum level before you turn on the system. Note: Your local Radio Shack sells a wide selection of microphones. 1. Connect an external microphone to the MIC MIX jack. 3.
13-1275.fm Page 30 Wednesday, July 14, 1999 3:59 PM CARE AND MAINTENANCE Your Optimus System 728 Mini Stereo Compnent System is an example of superior design and craftsmanship. The following suggestions will help you care for the system so you can enjoy it for years. Keep the system dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits. Handle the system gently and carefully.
13-1275.fm Page 31 Wednesday, July 14, 1999 3:59 PM CD CARE TIPS Even though a compact disc is very durable, treat the CD surface with care. We recommend the following precautions: • Do not write on either side of the CD, particularly the non-label side (signals are read from the non-label side). • Do not store CDs in high temperature, high-humidity locations. They might warp. • Keep CDs dry. A water drop can act as a lens and affect the laser beam’s focus.
13-1275.fm Page 32 Wednesday, July 14, 1999 3:59 PM 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-forward 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. 1. Disconnect power. 2.
13-1275.fm Page 33 Wednesday, July 14, 1999 3:59 PM SPECIFICATIONS Cassette Tape Speed .......................................................................................4.75 cm/sec Wow and Flutter ............................................................................ 0.35% WRMS Frequency Response ......................................................... 125 Hz–8 kHz ± 4 dB Recording System ................................................................................... AC Bias Erase System ..
13-1275.fm Page 34 Wednesday, July 14, 1999 3:59 PM General Speaker Impedance .................................................................................8 Ohms Power Output .....................................................................10 Watts per Channel Dimensions of Unit ...................................... 143/16 × 117/16 × 145/16 Inches (HWD) (360 × 288 × 338 mm) Dimensions of Each Speaker....................... 143/16 × 713/16 × 611/16 Inches (HWD) (360 × 200 × 175 mm) Weight .........
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13-1275.fm Page 36 Wednesday, July 14, 1999 3:59 PM RADIO SHACK LIMITED WARRANTY This product is warranted against defects for 90 days from date of purchase from Radio Shack company-owned stores and authorized Radio Shack franchisees and dealers. Within this period, we will repair it without charge for parts and labor. Simply bring your Radio Shack sales slip as proof of purchase date to any Radio Shack store. Warranty does not cover transportation costs.
