Scientific Atlanta was a manufacturer of in-home cable TV hardware that was purchased by Cisco Systems. The company still manufactures hardware under the Scientific Atlanta name, and resells the equipment through a variety of cable operators. Consumers who are curious about their settings can enter a special diagnostics mode using the buttons on the front of the unit.
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Step
Power on the cable box.
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Press down the diamond-shaped "Select" button on the front of the console. Hold it down until the "Mail" light comes on.
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Release the diamond button and press the "Info" button.
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Scroll through the menus using the "Vol +" and "Vol -" buttons.
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Press the "Exit" key to get out of diagnostic mode.
