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LC-43LB371U/LC-50LB371U 43"/50" 1080p, 60Hz, LED Sharp Roku TV
Dark, poor, or
no picture
(screen is lit),
but sound is
good
Broadcast TV may be
experiencing problems
or may not be set up
• Try another channel. The station may be experiencing
problems.
• 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.
Cables may not be
connected correctly
• Make sure that the antenna or cable TV is connected correctly
and securely. See Connecting a cable or satellite box on
page 15 or Connecting an antenna or cable TV (no box) on
page 18.
• 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.
Picture settings may be
incorrect
• Adjust the brightness. See the TV brightness option in
Settings menu on page 49 or Options menu on page 50.
• Change to a different picture mode. See the Picture mode
option in Options menu settings on page 50 or Advanced
picture settings menu options on page 51.
No color, dark
picture, or color
is not correct
Picture settings may be
incorrect
• Adjust the contrast, color, and brightness settings. See the TV
brightness option in Settings menu on page 49 or Options
menu on page 50.
Broadcast TV may be
experiencing problems
• Try another channel. The station may be experiencing
problems.
• 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.
Cables are not be
connected correctly
• Make sure that the antenna or cable TV is connected correctly
and securely. See Connecting a cable or satellite box on
page 15 or Connecting an antenna or cable TV (no box) on
page 18.
• 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.
Only snow
(noise) appears
on the screen
Broadcast TV may be
experiencing problems
or may not be set up
• Try another channel. The station may be experiencing
problems.
• If you are trying to watch broadcast TV, make sure that
Antenna TV is set up. See Setting up Antenna TV on page 41.
• 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.
Cables may not be
connected correctly
• Make sure that the antenna or cable TV is connected correctly
and securely. See Connecting a cable or satellite box on
page 15 or Connecting an antenna or cable TV (no box) on
page 18.
Picture quality is
good on some
channels and
poor on others.
Sound is good
Broadcast signal may be
weak
• 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.
Symptom Possible cause Try this...
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