Optimus 14-546A, CD-3321 owner manual Using Headphones, Listening Safely, illus

14-546a.fm Page 8 Wednesday, April 7, 1999 6:57 AM

Insert the DC adapter’s 5.5 outer diame- ter/2.1 inner diameter barrel plug into the DC 12V jack on the back of the CD- 3321, then plug the DC adapter into your vehicle’s cigarette-lighter socket.

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Note: If the CD-3321 does not operate when you turn it on, remove the DC adapter from your vehicle’s cigarette- lighter socket and check the socket for debris. Also check the fuse in the adapt- er and your vehicle’s fuse block.

USING HEADPHONES

For private listening, plug a pair of op- tional headphones with a 1/8-inch plug into the PHONES jack. Your local Ra- dioShack store has a wide selection of headphones.

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

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

•Once you set the volume, do not increase it. Over time your ears adapt to the listening level, so a vol- ume level that does not cause dis- comfort might still damage your hearing.

Listening Safely

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

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