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Dynex 40" LED TVDX-40D510NA15
www.dynexproducts.com
Video and audio
Problem Solution
Picture does not
fill the screen.
There are black
bars around the
picture.
• Change the aspect ratio. An
increasing amount of digital TV
and movies are presented in
wide screen (16:9). See
“Adjusting the TV picture” on
page 43.
No picture (screen
is not lit) and no
sound.
• Press (power) on the TV or
the remote control.
• Make sure that the video cables
are connected securely to the
side or back of your TV.
• Adjust the contrast and
brightness. See “Adjusting the
TV picture” on page 43.
• Make sure that the power cord
is plugged into a working
outlet.
• Make sure that the correct
video input source is selected.
See “Selecting the video input
source” on page 36.
• Try another channel. The station
may be experiencing problems.
• Make sure that the incoming
signal is compatible.
• 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 18.
• Check the closed caption
settings. Some TEXT modes can
block the screen.
Picture quality is
good on some
channels and poor
on others. Sound
is good.
• The problem may be caused by
a poor or weak signal from the
broadcaster or cable TV
provider.
• If you connect to cable or
satellite TV without a set-top
box and experience poor
picture quality, you may need
to install a set-top box to
improve signal reception and
picture quality. Contact your
cable or satellite TV provider
about upgrading to a set-top
box.
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 18.
• Adjust the brightness. See
“Adjusting the TV picture” on
page 43.
• Make sure that the correct
picture mode is selected. See
“Adjusting the TV picture” on
page 43.
• 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 58.
• 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 securely to the
side or back of 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 saturation. See
“Adjusting the TV picture” on
page 43.
• Make sure that the video cables
are connected correctly and
securely to the side or back of
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 18.
• 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 58.
• 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