Using the Projector on a Network 107
■ A/V Mute button temporarily turns off the picture and sound (see
page 60).
■ The Page Up/Down buttons control PowerPoint slides (requires
USB cable. See page 64).
■ The Volume buttons raise or lower the audio volume.
■ The CC (Closed Captioning) button lets you display closed
captioning for content that provides it.
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