The Logitech Z313 is a 2.1 surround sound speaker system that includes two satellite speakers and a subwoofer. It also includes a control pod that allows you to regulate volume. Connecting your speaker system to your TV monitor may enhance sound output especially when watching movies. The speakers allow you to hear surround sound effects and create a theater-like feeling.
Using Headphone Jack
Plug the pin attached to the two satellite speakers into the speaker port on the back of your subwoofer.
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Connect the power cable to an open electrical outlet.
Plug the pin connected to the control pod into an open headphone jack on your TV. Audio jack inputs may be located on the back or front of your TV or monitor depending on the model.
Press the "Power" button on the control pod to power on your subwoofer. The LED light comes on.
Turn on your TV and then move the volume control on the control pod to increase or decrease volume.
Using RCA Audio to 3.5mm Female Cable
Put the pin attached to the two satellite speakers into the speaker port on the subwoofer.
Place the power cable into an open electrical outlet.
Connect the red and white inputs on the "RCA audio to 3.5mm female" cable to the red and white audio inputs on your TV.
Plug the pin connected to the control pod into the 3.5mm port on the cable.
Press the "Power" button on the control pod to power on your subwoofer and then turn on your TV.