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85
43L621U / 49L621U / 55L621U / 65L621U 43" / 49" / 55" / 65" 2160p 60Hz LED Chromecast built-in
www.tv.toshiba.com
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
Video description
or voice guide
does not work.
• Make sure that your TV is not
muted and the volume is
turned up.
• Make sure that the options
listed under the Accessibility
menu are turned on. See
Adjusting sound settings on
page 65.
•Video descriptions are not
available on all broadcasts.
• Some remote functions are not
narrated.
Good picture, but
no sound.
• Increase the volume.
• Make sure that the sound is not
muted.
• Make sure that you do not have
headphones connected. When
headphones are connected, the
TV speakers are muted.
• Make sure that the TV
Speakers option on the Sound
menu is not set to Off.
• If you are using a home theater
system, soundbar, or external
speaker system, make sure it is
turned on and is not muted.
• If you are using a home theater
system, soundbar, or external
speaker system, make sure that
you have selected the correct
output mode.
• If you are using a home theater
system, soundbar, or external
speaker system and have
connected it with a digital
optical cable, go to the Sound
menu, highlight Digital Audio
Output, then press OK.
Highlight Audio Format, then
press OK. Press
S
or
T
to select
PCM, then press OK. See the
Digital Audio Output option in
Adjusting sound settings on
page 65.
• Make sure that the audio 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.
• The audio cables you are using
may be bad. Try a new set.
Problem Solution
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