Technical Support - Vizio SB4021M-A1 Quick Start Manual

TECHNICAL SUPPORT

There is no power.
There is no sound from
the Sound Bar.
There is no sound
coming from the
Subwoofer.
I hear buzzing or
humming.
How do I listen to
SRS TruSurround or
Dolby Digital?
I would like to adjust the
sound on the Subwoofer
and Sound Bar.
I want to return my
Sound Bar to factory
settings.
18
• Press the POWER button on the remote control or on the top of your Sound Bar.
• Ensure the power cords are securely connected.
• Turn the Subwoofer power switch to ON.
• Plug a different device into the electrical outlet to verify that the outlet is working correctly.
• To conserve power, the Sound Bar shuts off automatically after 30 minutes if not in use.
• Increase the volume. Press Volume Up on the remote control or on the top of your Sound Bar.
• Press MUTE on the remote to ensure the Sound Bar is not muted.
• Select a different input source (Analog, Coaxial, or Optical).
• Be sure the audio cable coming from the TV is connected to an audio output, not an audio input.
• If listening to a USB source, be sure the files are in MP3 format.
• If the lights on the Subwoofer are in a slow blink pattern, you will need to pair the Subwoofer
with the Sound Bar. See Re-Linking the Subwoofer and Sound Bar on page 14.
• Move the Subwoofer closer to the Sound Bar.
• Turn the Subwoofer power switch to ON.
• To conserve power, the Subwoofer will automatically enter a low power state when not in use. It may take up to 10
seconds for the Subwoofer to link after the Sound Bar is turned on.
• Ensure all cables and wires are securely connected.
• Connect a different source device (TV, Blu-ray player, etc) to see if the buzzing persists. If it does not, the problem may
be with the original device.
• Connect your device to a different input on the Sound Bar.
• To activate SRS TSHD, press the Menu button on the remote and use the arrow keys to scroll to the TSHD screen to
toggle between on and off.
• To listen to Dolby Digital, your device must be playing content in Dolby Digital format. Dolby Digital is only
available over Digital Coaxial or Digital Optical.
• Adjust the bass and treble levels using the remote.
• Try enabling/disabling SRS TruSurround.
• Press and hold the Power, Volume Up, and Volume Down buttons for 10 seconds to return your Sound Bar to its factory
default settings.