Optimus CD-3680 (42-5075), CD-3690 (42-5076) owner manual Powering the CD Player, Using Batteries

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42-5075.fm Page 6 Thursday, August 12, 1999 1:03 PM

POWERING THE CD PLAYER

You can power your CD player from any of these sources:

•Two AA alkaline batteries (not supplied)

•Two rechargeable AA nickel- cadmium batteries (not supplied)

•Vehicle battery power using the supplied DC adapter

•Standard AC power using an AC adapter (not supplied)

Note: Connecting an AC or DC adapt- er to the CD player with non-recharge- able batteries installed disconnects the batteries.

USING BATTERIES

You can power your CD player from two AA alkaline batteries (such as Ra- dioShack Cat. No. 23-552) or two re- chargeable AA nickel-cadmium bat- teries (such as Cat. No. 23-125).

Cautions:

•Always use fresh, or freshly charged, batteries of the required size and type.

•Do not mix old and new batteries, different types of batteries (stan- dard, alkaline, or rechargeable nickel-cadmium), or recharge- able batteries of different capaci- ties.

Follow these steps to install the batter- ies.

1.Press down on the battery com- partment cover and slide it in the direction of the arrow on the cover, then lift the cover.

Caution: The battery compart- ment cover is attached to the CD player. Do not try to remove it.

2.Put two AA alkaline batteries or two AA nickel-cadmium batteries in the battery compartment, as indicated by the polarity symbols (+ and –) marked inside.

Note: Before you use the CD player with nickel-cadmium batter- ies, you need to charge them, either in an external battery charger (such as Cat. No. 23-134) or in the CD player (see “Recharg- ing Nickel-Cadmium Batteries” on Page 7).

3.Close the battery compartment cover.

If flashes on the display, the sound distorts, or the volume weak- ens, replace or recharge the batteries.

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Contents Portable Compact Disc Player Features Digital Anti-Shock System DAS2Line Out Jack and Supplied Y FCC Information Contents Powering the CD Player Using BatteriesRecharging Nickel-Cadmium Batteries Using Vehicle Battery Power Using AC PowerFm Page 9 Thursday, August 12, 1999 103 PM Connecting Earphones Headphones ConnectionsConnecting Amplified Speakers Fm Page 12 Thursday, August 12, 1999 103 PM Operation Loading a CDPlaying a CD Digital ANTI-SHOCK System DAS2 Automatic Search Music System AsmsLocking Controls Viewing the Elapsed TimeTurning E-BASS on and OFF PAUSE/CUE Audible SearchIntro Scan Repeat PlayRandom Play Programmed PlayResume Troubleshooting Care and Maintenance Replacing the DC ADAPTER’S Fuse CD Care TipsSpecifications AudioFm Page 23 Thursday, August 12, 1999 103 PM RadioShack Division of Tandy Corporation Fort Worth, Texas
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CD-3690 (42-5076), CD-3680 (42-5075) specifications

The Optimus CD-3680 and CD-3690, products 42-5075 and 42-5076 respectively, represent a significant advancement in compact disc players, offering a blend of innovative technology and user-friendly features. Designed for both audiophiles and casual listeners, these models exemplify the quality and convenience of modern audio playback.

One of the standout features of the Optimus CD-3680 and CD-3690 is their high-fidelity audio output. Both models utilize advanced digital-to-analog converters (DACs), ensuring minimal distortion and maximum clarity in sound reproduction. The emphasis on audio quality allows users to enjoy their favorite music as the artists intended, with rich tones and intricate detail across the frequency spectrum.

In terms of technology, these CD players incorporate a robust error correction system that reduces playback issues that may arise from scratches or dirt on CDs. This feature enhances the reliability of audio playback, allowing users to listen to a wider variety of discs without interruption. Additionally, both models are equipped with a powerful motor and precision laser mechanisms, which contribute to swift and accurate disc reading, minimizing access time and enhancing overall user experience.

The design of the CD-3680 and CD-3690 is both sleek and functional, featuring a user-friendly interface that includes an intuitive remote control. This allows for easy navigation through tracks and playlists, empowering users to tailor their listening experience to their preferences. The clear display screen shows essential information such as track number, time elapsed, and remaining time, ensuring that users are always informed about their audio playback.

Another notable characteristic of these models is their compatibility with various audio formats, including CD-R and CD-RW. This versatility makes it easy for users to enjoy personalized playlists or compilations, broadening the scope of their listening choices.

In summary, the Optimus CD-3680 and CD-3690 stand out in the crowded market of audio players. Their high-quality audio output, advanced error correction technologies, sleek design, and user-friendly functionalities make them ideal for anyone seeking a reliable and enjoyable compact disc listening experience. With these models, music lovers can rediscover the charm of CDs with modern performance enhancements.
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