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LC-43LB371U/LC-50LB371U 43"/50" 1080p, 60Hz, LED Sharp Roku TV
Dotted lines or
stripes appear
on the screen
Cables may not be
connected correctly
• Make sure that the antenna or cable TV is connected correctly
Connecting a cable or satellite box
page
Connecting an antenna or cable TV (no box)
on
page
• Make sure that the video cables are connected correctly and
securely to your Sharp Roku TV.
• The video cable(s) you are using may be bad. Try a new set.
Broadcast signal may be
weak
• 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.
• Other devices (for example, a surround sound receiver,
external speakers, fans, or hair dryers) may be interfering with
your Sharp Roku TV. Try turning off one device at a time to
determine which device is causing interference. After you have
determined which device is causing interference, move it
further from your Sharp Roku TV to eliminate the interference.
Double images Broadcast signal may be
weak
• 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.
• If you are using an antenna and the signal strength is low,
switch to a cable or satellite box.
The picture has
a few bright or
dark spots.
This is normal in LED TVs
• A few bright or dark spots on an TV screen is normal. It does
not affect the operation of your Sharp Roku TV.
Good picture,
but no sound
Volume is down or
muted
• Increase the volume.
• Make sure that the sound is not muted.
Headphones may be
connected
• Make sure that you do not have headphones connected. When
headphones are connected, no sound comes from your Sharp
Roku TV speakers.
TV speakers may be
turned off
• If you want sound to play through your Sharp Roku TV
speakers, make sure that your Sharp Roku TV speakers are
turned on. See
Turning off your Sharp Roku TV speakers
page
You may need to change
the audio mode
• Change to a different audio mode. See
on page
.
Home theater system,
sound bar, or external
speaker system may not
be turned or may not be
set up correctly
• If you are using a home theater system, sound bar, or external
speaker system, make sure that it is turned on and is not
muted and that it is set to the correct source.
• If you connected an ARC audio device to the
HDMI 1/ARC
jack, make sure that you have turned on the ARC feature. See
the
HDMI ARC
Setting up a digital audio connection
on page
.
• If you are using a home theater system, sound bar, or external
speaker system and have connected it with a digital audio
cable, see
Setting up a digital audio connection
on page
.
• Make sure that the audio cables are connected correctly and
securely to your Sharp Roku TV.
Bad content, no audio
• Make sure that the selected channel or content is intended to
be broadcasting with sound.
Cables may not be
connected correctly
• Make sure that the antenna or cable TV is connected correctly
Connecting a cable or satellite box
page
Connecting an antenna or cable TV (no box)
on
page
• The audio cables you are using may be bad. Try a new set.
Symptom
Possible cause
Try this...