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Troubleshooting & Technical Support

Products are often returned due to a technical problem rather than due to a defect. If you are experiencing a problem when using your TV, try to fix the issue using this troubleshooting guide.

If, after using this troubleshooting guide, you are still experiencing an issue with your TV, contact VIZIO’s Support Department. Quality customer support and service are integral parts of VIZIO’s commitment to service excellence.

Phone:

(877) 698-4946

Web: www.VIZIO.com

Fax:

(949) 585-9563

Hours of operation:

Email:

techsupport@vizio.com

Monday - Friday: 6 am to 9 pm (PST)

 

 

Saturday - Sunday: 8 am to 4pm (PST)

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 22.

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 press the Power/ Standby button 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 Adjusting the Picture Settings on page 15.

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

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 20. 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 15.

•Reset the picture settings. See Resetting the Picture Settings on page 17.

•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 6.

The image quality is not good.

•For the best image quality, view high-definition programs using digital sources. Connect your devices with HDMI cables.

•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.

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Vizio M550SV, M420SV, M470SV Phone, Fax, Hours of operation, TV displays No Signal, There is no power, There is no sound
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M550SV, M470SV, M420SV specifications

Vizio has established itself as a noteworthy player in the television market, particularly with its M-series range, including models M420SV, M470SV, and M550SV. These TVs combine advanced technologies, affordability, and impressive viewing experiences, making them popular among consumers.

The Vizio M420SV stands out with its 42-inch screen size, making it an ideal option for smaller living spaces or bedrooms. This model features LED backlighting, which enhances brightness, contrast, and energy efficiency. With a resolution of 1080p, viewers can enjoy sharp, vibrant images that are complemented by Vizio's technology known as Smart Dimming, which adjusts brightness levels in specific areas of the screen for an optimal viewing experience.

Moving up in size, the Vizio M470SV offers a 47-inch screen that provides an immersive viewing experience suitable for medium-sized rooms. Like the M420SV, it utilizes LED backlighting and 1080p resolution, ensuring clarity and color accuracy. Additionally, this model incorporates Vizio's SRS StudioSound technology, which enhances audio quality by providing a richer sound experience without needing an external sound system.

The largest model in the range, the Vizio M550SV, boasts a generous 55-inch display, making it perfect for home theater setups or larger living areas. It shares the same core features of LED backlighting and 1080p resolution, delivering stunning picture quality. One of its standout characteristics is the inclusion of built-in Wi-Fi, allowing users to access Vizio's Smart TV features effortlessly. This facilitates streaming from popular services such as Netflix, Hulu, and YouTube directly from the TV, creating a seamless entertainment experience.

All three models are equipped with multiple HDMI inputs, making it easier for users to connect various devices such as gaming consoles, Blu-ray players, and sound systems. Additionally, they support Vizio's Smart TV platform, which offers a user-friendly interface for navigating apps and settings.

In summary, Vizio's M-series models, including M420SV, M470SV, and M550SV, cater to diverse needs with their varying sizes and features. With advanced LED technology, impressive sound quality, and smart connectivity options, they represent an excellent choice for those seeking high-quality home entertainment solutions without breaking the bank.
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