Optimus STAV-3790 Preparing Your Receiver, Inner Insulation Center Wire Outer Insulation

Models: STAV-3790

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Inner Insulation

31-3046.fm Page 14 Monday, January 29, 2001 12:43 PM

Preparing Your Receiver

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

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

For the best radio reception, use an outdoor antenna. Follow these steps to connect an outdoor FM antenna to the receiver using 75Ω coax- ial 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 cen- ter wire.

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 Manual backgroundManual backgroundManual backgroundManual background terminal.

Inner Insulation

Center Wire

Outer Insulation

Shielding

Outdoor FM Antenna

Shielding

Center

ANTENNA

Wire

 

FM

AM

UNBAL

LOOP

75

ANTENNA

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 Manual backgroundManual background terminal to the building’s power ser- vice grounding electrode system.

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

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Optimus STAV-3790 owner manual Preparing Your Receiver, Inner Insulation Center Wire Outer Insulation