13-1295.fm Page 6 Wednesday, July 14, 1999 7:10 PM

Warning: To prevent electric shock, the power cord plug’s blades are po- larized and fit a polarized AC outlet only one way. If you have difficulty in- serting the plug, do not force it. Turn it over and reinsert it.

USING HEADPHONES

You can use headphones (not sup- plied) to listen in privacy. Insert the headphones’ 1/8-inch (3.5 mm) plug

into the jack.

show location

Notes:

Your local RadioShack store sells a wide selection of headphones.

Connecting headphones automat- ically disconnects the speakers.

6

Listening Safely

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

Do not listen at extremely high volume levels. Extended high- volume listening can lead to per- manent hearing loss.

Set the volume to the lowest set- ting before you begin listening. Af- ter you begin listening, adjust the volume to a comfortable level.

Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing.

Page 6
Image 6
Optimus SYSTEM 747 owner manual Using Headphones, Listening Safely, Show location