Optimus CD-3720 manual

Cat. No. 42-5077 OWNER’S MANU AL Please read be fore usin g th is e q u ipm en t . CD-3 720 Portable Compact Disc Player with 10 Seco nd D igi tal An ti-Sh ock Sys tem 42-5 07 7. fm Page 1 Thurs da y, Au gust 12 , 199 9 1:12 PM[...]

2 FEATURES Your Optim us CD-3720 P ortable Compact Disc Player uses the la test digital audio technol ogy to give y ou the clear sound of c ompact discs. You can connec t th e CD pla yer to your ho me a udio or au tosou nd system or connect a pair of st ereo headphone s f o r portable , private listening. The CD player’s f e atures include: H y p[...]

3 Built-In Ba ttery C harger — r echarges special rechargeabl e nickel- cadmium batteries inside the player when you use an AC or DC adap ter. 1-Bit DAC — u ses t he latest in digital-to-analog conv ersion circuitr y to accurately reproduce all sound level s with virtually no distortion. Automatic S earch M usic System (ASMS ) — lets yo u qui[...]

4 Important: You ne ed a pair of stereo headpho nes, amplified speak ers, or a home audio or aut osound s ystem to use your CD pl ayer. Your local Ra- dioShack store carries a comple te line of headphones , spea kers, and au- dio systems. CDs that c an be played on t his CD player have this m ark on them: We recomme nd you record your CD player’s[...]

5 FCC IN FORMATIO N This equ ipment com plies with the limits for a Class B digital device as specified in Part 15 of FCC Rules . These l imits provide reasonable pro- tection agai nst radio and TV interference in a residential area. Howev er, your eq uipment might c a use TV or radio inte r ference e ven when it is op- erating prope rly. To elimin[...]

6 CONTENTS Pow erin g the CD P la y er .... ..... ..... .... ... .... ..... ... .... ... .... ..... .. ..... ..... .. ..... .. 8 Usin g Bat terie s ..... .. ..... ..... .. ..... .... ..... ..... ..... .. ..... .... ....... ..... ..... ..... .. .. 8 In stalli ng B atteri es ... ... .... ..... .. ..... ..... ..... .... ..... .. ..... ..... ..... ....[...]

7 Care and Mai ntenan ce .... ..... .. ..... ..... .. ..... ..... ....... .... ..... ..... .. ..... ..... ..... 32 CD Care T ips ..... .. ..... ..... .. ..... .... ..... ..... ..... .. ..... .... ... .... ... ..... .... ... .... . 33 Speci ficat ions ... ..... .. ..... ..... .. ..... .... ....... ..... ..... ..... .. ..... .... ..... ..... ..... ..[...]

8 POWERING THE CD PLAYER You can pow er your CD player fr om an y of thes e sourc es: • two AA alkaline bat teries • two special rechargeable AA nick el-cadmium batteries • two standard rechargeabl e AA nickel-cadm ium batteries • vehicle battery power using an optional DC adapter • standard AC power using an optional AC adapter Note: Con[...]

9 Y ou cannot ch arge standard ni ckel-cadmium recha rgeable batteries inside the CD player ’s battery compartment , but you can charge them using an ex ternal battery charger s uch as Ca t. No. 23-133 (not sup- plied). Note: All types of nickel-cadm ium batte r i es come fully discha rged. Be sure to fully charge the batteries b efore you use th[...]

10 2. Place two AA bat teries in the compartment and on t op of the attached ribbon, as indicated b y the p olarity sym bols ( + and – ) m arked inside. 3. Close th e cover . When flashes, the s ound distorts, or the v o lume weakens , replace or recha r ge the batteries. Cautio n s: • Dispose of old batteries promptly and properly . Do not bur[...]

11 To charge s pecial nickel-cadm ium bat teries in the CD player, simply con- nect an AC or DC adapter to your CD pl a yer (see “Using AC Po wer” on Page 12 o r “Using Vehicle Battery Power” on Page 14). BA T T CHARGE on the front of the CD player lights while batteries are installed and charg- in g. W hen the batteries are fully charged, [...]

12 • Fully discharge the bat teries occasionally by p laying the CD player until it no longer plays. T hen fully recharge the batteries. This he lps maintain the batteries’ full charging capacity . • Important: T his CD player is cap able of u sing rechargeable nickel- cadmium batteries. At the en d of the batteries’ useful l ife, t hey mus[...]

13 Follow these steps to connect an AC adapter to the CD pla yer. 1. Plug the A C adapter ’s 5. 5 m m ou ter diamet er/2.1 m m in ner di ame ter barrel plug into the cable so it reads + T IP . 2. Set the AC adapte r ’s voltage switch to 4.5V . 3. Connec t the AC adapter ’s ba r rel plug to the 4.5V jack on the back of the CD player . 4. Plug [...]

14 Usin g V ehi cle Batter y Pow er You can p ower your CD pl ayer from your v ehicle’s cigarette-lighter socket using an optional 4.5 volt DC adapter, such as Cat. No. 273-1801. Cautio n s: • Y ou m ust use a DC ada pter that supplies 4 .5 volts and de livers at least 550 mA of autom otive power . Its cent er t i p must be s et to posi- tive a[...]

15 2. Set the DC adapter ’s voltage switch to 4.5 volts. 3. Connec t t he DC adapter ’ s barrel plug t o the 4.5V jack on the ba ck of the CD player . 4. Plug the DC adapter ’s other end into your vehicle’s ciga rette-li gh ter socket. Note: I f the CD player does not op erate when you use the DC a dapter, unplug t he cord from the cigarett[...]

16 CONNECTIONS You can listen to your CD player by connect ing optional stereo head- phones or amplified speakers to t he CD player’s PHONES jack, or by con- necting a home audio or autosound system to the CD player’s LINE OUT jack. Note: If the jacks on your equ ipment do not mat c h the plugs on t he sup- plied Y-cable, c heck with your lo ca[...]

17 Listen ing Safely To protec t your h earing, follow t hese guidel ines when you use e arphones or headphones . • Set t he volume to the lowest set ti n g before you begin listening. A fter you begin l istening, ad just the v olum e to a comfortabl e level. • Do no t listen at extremely high volum e levels. Extended h igh-volume listening ca [...]

18 CONNECTING AMPLIFIED SPEAKERS You can listen to your CD player through optional ampl if i ed speakers (such as Cat. No. 40-138 7). P lug the speaker cable’s 1 / 8 -inch (3.5-mm) plug into th e CD player’s PHONES jack. CONNECTING TO A HOME A UDIO S YSTEM You can l isten to your CD pl ayer through your h ome audio s ystem’s am- plifier/recei[...]

19 CONNECTING TO AN AUTOSOUND SYSTEM You can listen to your CD player through you r autoso und system in one of the following ways: • I f yo ur autosound syst em has LINE IN jacks, connect the supp lied Y- cable’s 1 / 8 -inch (3.5-mm ) plug to t he CD p layer ’s LINE OUT jack. T hen connect the Y-cable’ s ph ono plugs to your a ut osou nd s[...]

20 • If your autosound system has a cassette deck, connect an optional CD-to-cassette adapter ’s plug (such as Cat. No . 12-1951) to t h e CD player ’ s PHONES jack. Then insert the adapte r’s other end into your cassette d eck just like a standard cas s ette. 42-5 07 7. fm Page 2 0 Thu rsday, Aug us t 12, 19 99 1:1 2 PM[...]

21 OPERATION LOADI NG A CD Caution: To help prevent dust from entering the CD play er, alwa y s keep the CD compartm ent cover closed except to load or unl o ad CDs. 1. Slide HOLD in the direction o f the arrow marked n ext to HOLD . 2. Press PUSH OPEN and lift the CD c ompartment cover . 3. Carefully place a CD, label side up, over the center hub [...]

22 PLAYIN G A CD Warning: To protect your hearing if you are using earph ones or head- phones, set VOLUME to its lowest setting before you play a CD. Pr e ss PLA Y/P AUSE . T he CD player automatical ly turns on and 00 , th e to tal number of t r acks o n t he CD, and t he CD’ s pla ying t ime brie fl y a p - pear on the d isplay . Then the curre[...]

23 To temporarily stop play, press PLA Y/P AUSE . The current track’s elapsed time flashes. To resum e play, press PL A Y/P AUSE again. W hen the la st t rack finishes p laying, the CD st op s and 00 appears f o r a few seconds. Then the CD player automatically turns off . To turn it off soon er, press STOP . T URNING E-BASS ON AND O FF To enha n[...]

24 DIGITA L ANTI-SHOCK SYSTEM Your CD player contains s pecial circuits to overcome so und skipping problems caused by s hock or vibra ti on. This means you can carry the CD player anywhe r e you go or use it in your vehicle . When you turn on the anti-shock system, the C D player continuou s ly saves 10 seconds of mu- sic in memory . During a shoc[...]

25 Note: T he CD pla yer consum es ext ra battery pow er when you use the anti-shock sy stem. When you use t he CD player in a stable l ocation, re- peated ly press DAS until the icon d isappears to conserve battery power. LOCKING T HE CONTROLS To prot ect your CD player f rom accident al program chan ges, slide HOLD in the direction of the arrow m[...]

26 During play, pres s to return to the beginn ing of the current track. Press twice to ret urn t o the begi nning of the pre vious track, then re- peatedly press to move through the previ ous tracks or to move through the next tracks. To m ove to the beginning of the n ex t track, press . AUDIBLE SEARCH To search forward o r backw ard during play,[...]

27 To beg in scanni ng, press PLA Y MODE . Intr appears . Th en press PLA Y/ PA U S E . T he first track numbe r and --:0 0 appear and int r o scan starts from the f irst track on the CD. To return to no rmal play, press PLA Y/P AUSE . The current track’s elapsed time appe ars. Notes: • Intro scan plays t he tracks i n the p rogrammed order i f[...]

28 To repeat al l tracks on a CD, repea tedly press REPEA T/ENTER unt il RE- PEAT appears. The CD player continuously replays the CD. To cancel repeat play, press REPEA T/ENTER un til RE PEAT disappears. RANDOM PL AY In random pl ay, the CD player plays all the t r a cks once in r a ndom order, then automa tically stops. To start rando m play at an[...]

29 PROGRAMMED PLAY You can program up to 2 2 track s on a CD to play in any ord er you choo se, and you can program the same track to play more than once. Follo w these steps to program and play a sequence. 1. Press PLA Y/P AUSE to t urn on the CD p layer . 2. Press PLA Y MODE twice. PGM flashes. 3. Repeat edly press or to display the num ber of th[...]

30 T ROUBLES HOO TING If your CD player is not working prope rly, follow these suggestions to se e if you can e liminate the problem. I f t hese s uggestions d o not work, con- tact you r local Rad ioShack s tore for assistance. Problem Po ssible Cause Su gg est i on The CD player does not work. HOLD i s set in the direc- ti on o f th e ar r ow . S[...]

31 Sound from a CD skips (continu ed) Moist ure has condensed on the pickup lens. Wait 1 ho ur for t he mo is- ture to evap orate. Pro ble m Poss i bl e C aus e S ugg e st i on 42-5 07 7. fm Page 3 1 Thu rsday, Aug us t 12, 19 99 1:1 2 PM[...]

32 CARE AND MA INTENANCE Your Optim us CD-3720 Portable Compac t Disc Player is an exam ple of superior design and craft smanship. The fol lowing sug gestions will hel p you care for your CD player so you can enjoy it for years. Keep the CD player dry. I f it gets wet, wipe it dry immediate- ly. Liquids might contain minerals that can corrode the e[...]

33 W ipe the CD player with a dam p cloth occasion ally to keep it looking ne w. Do not use hars h chemicals, c leaning sol- vents, or strong detergents to clean the CD pl ayer. Always kee p the charging terminals on the recharge able batteries c lean. Use a cotton s wab dipped in alcohol to clean t he termina ls. Modi fying or tampering with the C[...]

34 information. T o clean the CD, use a CD cleaner kit (such as Cat . No. 42-226). • Keep CDs dry . A water drop can act as a lens and affect the laser beam f ocus. 42-5 07 7. fm Page 3 4 Thu rsday, Aug us t 12, 19 99 1:1 2 PM[...]

35 SPEC IF ICAT IONS Frequenc y Res ponse ( ± 3 dB) . ........ ....... ..... ....... ....... ..... .... 20–2 0,000 Hz Line O utput .... ... .... ..... .. ..... ... .... ..... .. ..... ..... .. ..... .. ..... ..... .. ..... ..... .. ..... . 0.6 V Sam pling Frequency ........................................................ .. ........ 44.1 kHz Ove[...]

Radi oSh ack A Division of T andy Corporation Fort Worth, T exas 76102 8A8 Pri nted in Hong Kong Lim it ed O ne-Y ear War ranty This pr oduct i s wa rrant ed by RadioSh ack aga inst ma nufac turing defec ts in materia l an d wor kman- ship un der normal use for on e (1) year fr om the date of pu rchase fr om RadioSh ack co mpany- owned stores and a[...]