Vizio M420KD warranty See Changing the Screen Aspect Ratio on

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.

The picture is distorted.

•Nearby electrical devices may be interfering with the TV. Separate the TV from electrical appliances, cars, or flourescent lights.

•Ensure all cables are securely attached.

The display image does not cover the entire screen.

•If you are in RGB mode (computer), ensure that H-Size and V-Position in the on-screen menu are set correctly.

•If you are using TV, AV1, AV2, or Component with 480i input, press the WIDE button on the remote to change the screen mode.

The TV has pixels (dots) that are always dark or always lit.

•Your HDTV is precision-manufactured using an extremely high level of technology. However, sometimes pixels may not display correctly. These types of occurences are inherent to this type of product and do not constitute a defective product.

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I see “noise” or static on the screen.

•When your TV’s digital capabilities exceed a digital broadcast signal, the signal is up-converted (improved) to match your TV’s display capabilities. This up-converting can sometimes cause irregularities in the image.

•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.

When I change input source, the volume changes.

•The TV remembers the volume level on each input source. If the volume level on the new input source is higher or lower than the level on the source you switch from, the difference may be noticable.

•Use the Volume Up/Down buttons on the remote to adjust the volume.

When I change input source, the display image changes size.

•The TV remembers the viewing mode on each input source. If the viewing mode on the new input source differs from the one on the input source you switch from, the difference may be noticable.

•See Changing the Screen Aspect Ratio on page 18.

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