User Guide for Vizio VU42LF
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Press the button to highlight the Speakers selection...Press the button to turn the internal speakers On or Off...You may want to turn-off the internal speakers when listening to the audio through your Home Theatre System...
If your Cable Set-Top Box does not respond, try all the codes for your brand...If the codes do not work, or your brand is not listed, see “Searching for Component Codes.” Sometimes a code listed will only include limited functions...Try other codes that may include more functionality...
If the LED does not flash twice, repeat Steps 2 through 4 with the next code listed for the component and manufacturer...
Manually turn on the Cable Box...Press and hold the SET button until the LED LIGHT flashes twice...If the code is accepted, the LED flashes twice after the last digit is entered...