Vizio M550SL, M420SL, M370SL, M320SL, M470SL warranty

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The TV displays “No Signal.”

Press the INPUT button on the remote control to select a different input source.

If you are using cable TV, satellite, or antenna connected directly to the TV, scan for channels. See Scanning for Channels on page 33

There is no power.

Ensure the TV is plugged into a working electrical outlet.

Ensure the power cable is securely attached to the TV.

Press the Power/Standby button on the remote or on the side of the TV to turn the TV on.

The power is on, but there is no image on the screen.

Ensure all cables are securely attached to the TV.

Ensure all devices are connected correctly. Devices differ; see your device’s user manual for details.

Adjust Brightness, Contrast, or Backlight. See Resetting the Picture Settings on page 27

Press the INPUT button on the remote to select a different input source.

A

There is no sound.

Press Volume Up on the remote control.

Press the MUTE button on the remote to ensure mute is off.

Check the audio settings. See Adjusting the Audio Settings on page 28 Ensure the speakers are set to On.

Ensure no headphones are connected to the TV.

Check the audio connections of external devices (Blu-ray player, game console, cable/satellite box) that are connected to the TV.

If you are using an antenna, the signal strength of the channel may be low. Ensure your antenna is connected securely to the TV and move the antenna around the room or close to a window for the best signal.

The colors on the TV don’t look right.

Adust the Color and Tint settings in the Picture menu. See Adjusting the Picture Settings on page 24

Reset the picture settings. See Resetting the Picture Settings on page 27

Check all cables to ensure they are securely attached.

The buttons on the remote aren’t working.

Ensure you are only pressing one button at a time.

Point the remote directly at the TV when pressing a button.

Replace the remote batteries with new ones. See Replacing the Batteries on page 14

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Contents User Guide LLC Welcome When Reading this ManualImportant Safety Instructions Thank You for Choosing VizioPage Page DTV Transition Advisory Television Antenna Connection Protection Table of Contents Using the USB Media Player Inspecting the Package Contents Installing the TVInstalling the TV Page M320SL M370SL M420SL Page Controls and Connections Rear Panel Model M320SLRear Panel Models M370SL, M420SL, M470SL, M550SL Side Panel Front Panel Remote Control Models M320SL, M370SL Closed CaptionsRemote Control Front Models M420SL, M470SL, M550SL Remote Control Back Models M420SL, M470SL, M550SL ShiftAaabattery Batteryaaa Connecting Your Devices Connecting a DeviceConnecting a PC Connecting an audio device Model M320SL GoodConnecting Audio Device Connecting to your network Completing the First-Time Setup Using the On-Screen Menu Navigating the On-Screen MenuChanging the Input Source Changing the Screen Aspect RatioSetting Up Closed Captioning Activating the Sleep Timer Adjusting the Picture SettingsPage Page Page Adjusting the Audio Settings Advanced Audio See Adjusting the Advanced Audio Settings onPage Using the Network Connection Menu Page Changing the TV Settings Page Page Page Page Page Page Page Using the Help Menu Page Using the Info Window Using the USB Media Player Using the USB Media PlayerMusic Player Photo Viewer Using the VIA Shortcut Buttons Using Vizio Internet AppsUsing the VIA Dock Creating and Managing User Profiles Page Restoring the VIA Dock to the Factory Default Settings Troubleshooting & Technical Support LET US HelpPage See Changing the Screen Aspect Ratio on Specifications CSA, CSA-US, FCC Limited Warranty On Parts and LaborLegal & Compliance UK BASE/BSVizio Software License Agreement Page YOU MAY Also have Other Rights Which Vary by Jurisdiction Vizio INC. All rights reserved ST-A
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