VIZIO D28h-C1 Manuel D’Utilisation
A
Troubleshooting & Technical Support
54
The TV has pixels (dots) that are always dark.
• Your HDTV is precision-manufactured using an extremely
high level of technology. However, sometimes pixels may
not display correctly. These types of occurrences are
inherent to this type of product and do not constitute a
defective product.
The display image does not cover the entire screen.
• Some programs have black bars on the top or sides of
the picture so that the picture keeps its original shape.
Examples include wide-screen movies and older television
programs.
• Press the
WIDE button on the remote to change the width
of the image. See
• Adjust the video settings of the device that is the source of
the video (Blu-ray player, DVD player, cable or satellite box,
etc.).
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 noticeable.
• See
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
• Ensure no headphones are connected to the TV.
• Check the audio connections of external devices (Blu-ray
• 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.
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 noticeable.
• Use the
Volume Up/Down buttons on the remote to adjust
the volume.