Sharp LC-42LB150U User Manual page 74

Problem Solution
Only snow (noise)
• Try another channel. The station
appears on the
screen.
• Make sure that the antenna or
• If you are using an antenna, the
• If you are using an antenna and
Picture quality is
• The problem may be caused by
good on some
channels and poor
on others. Sound
is good.
• If you connect to cable or
70
may be experiencing problems.
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.
digital channel signal may be
low. To check the digital
channel signal strength, see
"Checking the digital signal
strength" on page 49.
the signal strength is low, adjust
the antenna or use a highly
directional outdoor antenna or
set-top antenna with a built-in
amplifier.
a poor or weak signal from the
broadcaster or cable TV
provider.
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.
Problem
Dotted lines or
stripes appear on
the screen.
Double images.
The picture has a
few bright or dark
spots.
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LC-42LB150U Sharp 42" LED TV
Solution
• 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
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 49.
• 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 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 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.
• Use a highly directional outdoor
antenna, cable TV, or satellite
TV.
• A few bright or dark spots on an
LCD screen is normal. It does
not affect the operation of
your TV.
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