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43L621U / 49L621U / 55L621U / 65L621U 43" / 49" / 55" / 65" 2160p 60Hz LED Google Cast™ TV
www.tv.toshiba.com
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 20 or Connecting an
antenna or cable TV (no box) on
page 24.
• Adjust the brightness. See
Adjusting the TV picture on
page 65.
• 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 65.
• 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 20 or Connecting an
antenna or cable TV (no box) on
page 24.
• 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.
Only snow (noise)
appears on the
screen.
• 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 20 or Connecting an
antenna or cable TV (no box) on
page 24.
• 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
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 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 TV provider about
upgrading to a set-top box.
Dotted lines or
stripes appear on
the screen.
• Make sure that the antenna or
cable TV is connected correctly
and securely. See Connecting a
cable or satellite box on
page 20 or Connecting an
antenna or cable TV (no box) on
page 24.
• 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.
• Other devices (for example, a
surround sound receiver,
external speakers, fans, or hair
dryers) may be interfering with
your TV. Try turning off one
device at a time, then back on
to determine which device is
causing interference. After you
have determined which device
is causing interference, move it
further from the TV to eliminate
the interference.
Double images.
• Use a highly directional outdoor
antenna, cable TV, or satellite
TV.
The picture has a
few bright or dark
spots.
• A few bright or dark spots on an
LCD screen is normal. It does
not affect the operation of
your TV.
Problem Solution