Optimus 31-3042 Using Headphones, Muting the Receiver, Loudness Control, Listening Safely

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Basic Operation

Using Headphones

To listen with headphones (not supplied), insert the headphones’ 1/4-inch plug into the receiver’s front panel PHONES jack. To silence the speakers and listen with headphones without disturbing others, press SPEAKER so only SP appears on the display.

Listening Safely

To protect your hearing, note the following when using headphones.

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

•Do not listen at extremely high volume 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 volume level, so a volume level that does not cause discomfort might still damage your hearing.

Muting the Receiver

To temporarily mute the sound, press MUTING on the remote control. --MUT- ING --appears. Press MUTING again to restore the audio level.

Loudness Control

To increase the high and low ranges of sounds for improved audio at a low lis- tening level, press LOUDNESS (or LOUD on the remote control) so LOUDNESS appears. Press LOUDNESS (or LOUD) again to turn off this feature.

Bypassing the Sound

Controls (Remote Control

Only)

To bypass your receiver’s sound controls (BASS, TREBLE, BALANCE, or any spe- cial sound options) so you can hear the audio at its original tonal quality (for example), press DIRECT on the remote control so DIRECT appears. Press DIRECT again to turn off this feature.

Note: When you turn off the bypass feature, you will have to reselect any desired special sound options (see “Using Advanced Sound Options” on Page 21).

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Contents Audio/Video Receiver Please read before using this equipmentAudio/Video Receiver Introducing the Optimus STAV-3770 Introducing the Optimus STAV-3770 Important Safety Instructions Important Safety Instructions Contents Contents Positioning Speakers Preparing Your ReceiverPreparing Your Receiver Preparing the Speaker Wires Connecting SpeakersPreparing Your Receiver Connecting the Front Speakers Preparing Your Receiver Connecting a Subwoofer Amplifier Connecting Surround-Sound SpeakersConnecting the Center Speaker Preparing Your Receiver Connecting Cassette Decks Connecting a TurntableConnecting a CD Player Preparing Your Receiver Connecting a Video Monitor Connecting Video SourcesPreparing Your Receiver FM Antennas Connecting the AntennasAM Antennas Preparing Your Receiver Inner Insulation Center Wire Outer Insulation Shielding Preparing Your Receiver Using One Remote Control for More than One Unit Installing Remote Control’s BatteriesPreparing Your Receiver Connecting to AC Power Using the AC Power OutletPreparing Your Receiver Basic Operation Basic Operation Direct Access Tuning Remote Control Only Tuning the RadioManual and Automatic Tuning Basic Operation Memory Tuning Using FM MonoAdjusting Balance Basic Operation Loudness Control Using HeadphonesBypassing the Sound Controls Remote Control Only Muting the ReceiverBasic Operation Dubbing a Cassette Tape Cassette Deck/VCR FeaturesCassette Deck/VCR Features Copying a Video Tape Playing a Video TapeCassette Deck/VCR Features Dolby Virtual Using Advanced Sound OptionsDolby Pro Logic Surround Dolby 3CH LogicUsing Advanced Sound Options Rear Level Center Mode SettingTest Tone Center LevelUsing Advanced Sound Options Effect Level Delay TimeUsing Advanced Sound Options Receiver/Amplifier Operation Using the Remote ControlControl Mode Buttons Using the Remote Control Cassette Deck Operation CD Player OperationUsing the Remote Control Problem Cause Suggestion TroubleshootingTroubleshooting Care and Maintenance Care and Maintenance FCC Wants You to Know FCC Wants You to Know Video Section SpecificationsAmplifier Specifications General FM TunerAM Tuner Specifications Control Index to Features by Control NameIndex to Features by Control Name RadioShack Division of Tandy Corporation Fort Worth, Texas RadioShack Division of Tandy Corporation Fort Worth, Texas