Optimus 31-3042 owner manual Inner Insulation Center Wire Outer Insulation Shielding

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Preparing Your Receiver

Warning: To prevent injury, read and fol- low all cautions and warnings that ac- company the outdoor antenna.

For the best radio reception, use an outdoor antenna. Follow these steps to connect an outdoor FM antenna to the receiver using 75Ω coaxial cable.

Note: If your antenna has 300Ω twin-lead cable, consult your local RadioShack store for the correct adapter.

1.Disconnect the supplied FM antenna from the receiver’s FM UNBAL 75Ω terminal.

2.With a stripping tool, remove about 11/2 inches of the outdoor antenna cable’s outer insulation to expose the cable’s shielding.

3.Fold back the shielding from the inner insulation.

4.Remove about 1 inch of the inner insulation from around the center wire.

Inner Insulation

Caution: The cable’s shielding should only touch the terminal.

Center Wire

Outer Insulation

Shielding

5.Pull the shielding to one side. Connect the center wire to the receiver’s FM UNBAL 75Ω terminal. Twist the shielding to secure any loose wire strands, and connect it to the FM UNBAL 75Ω terminal.

Outdoor FM Antenna

Shielding

Center Wire

LOOP

ANTENNA

AM

ANTENN

FM UNBAL 75

Note: Grounding is not necessary for reception, but we recommend it for better FM reception and to avoid damage from lightning when you use an outdoor FM antenna. Use a separate piece of thick polyvinyl insulated wire to connect the terminal to the building’s power service grounding electrode system.

Warning: Never connect a wire to a gas pipe for grounding since sparks might ignite the gas.

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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