64
NS-55D421NA16 Insignia 55" 1080p 60Hz LED TV
www.insigniaproducts.com
Video and audio
Problem Solution
Picture does
not fill the
screen. There
are black bars
around the
picture.
• Press ASPECT to change the aspect
ratio. See the “Aspect Ratio” option
in Adjusting the TV picture on
page 44.
No picture
(screen is not
lit) and no
sound.
• Press on the TV or the remote
control.
• Make sure that the Audio Only
option is set to Off. See Playing TV
audio only on page 48.
• Make sure that the video cables are
connected correctly and securely
to your TV.
• Adjust the contrast and brightness.
See Adjusting the TV picture on
page 44.
• Make sure that the power cord is
plugged into a working outlet.
• Press INPUT and make sure that the
correct video input source is
selected. See Selecting the video
input source on page 35.
• Try another channel. The station
may be experiencing problems.
• Make sure that the antenna or cable
TV is connected correctly and
securely. See Connecting a cable or
satellite box on page 13 or
Connecting an antenna or cable TV
(no box) on page 17.
• Check the closed caption settings.
Some TEXT modes can block the
screen. See Using closed captioning
on page 56.
Dark, poor, or
no picture
(screen is lit),
but sound is
good.
• Try another channel. The station
may be experiencing problems.
• Make sure that the antenna or cable
TV is connected correctly and
securely. See Connecting a cable or
satellite box on page 13 or
Connecting an antenna or cable TV
(no box) on page 17.
• Adjust the brightness. See Adjusting
the TV picture on page 44.
• Press PICTURE to change to a
different picture mode. See
Adjusting the TV picture on
page 44.
• If you are using an antenna, the
digital channel signal may be low. To
check the digital channel signal
strength, see Checking the digital
signal strength on page 51.
• If you are using an antenna and the
signal strength is low, adjust the
antenna or use a highly directional
outdoor antenna or set-top antenna
with a built-in amplifier.
• Make sure that the video cables are
connected correctly and securely to
your TV.
• The video cable(s) you are using
may be bad. Try a new set.
No color, dark
picture, or
color is not
correct.
• Try another channel. The station
may be experiencing problems.
• Adjust the color settings. See
Adjusting the TV picture on
page 44.
• Make sure that the video cables are
connected correctly and securely to
your TV.
• Make sure that the antenna or cable
TV is connected correctly and
securely. See Connecting a cable or
satellite box on page 13 or
Connecting an antenna or cable TV
(no box) on page 17.
• If you are using an antenna, the
digital channel signal may be low. To
check the digital channel signal
strength, see Checking the digital
signal strength on page 51.
• If you are using an antenna and the
signal strength is low, adjust the
antenna or use a highly directional
outdoor antenna or set-top antenna
with a built-in amplifier.
Problem Solution